Key takeaways
Saint Barthelemy is a 21 km2 French overseas collectivity in the Caribbean with excellent Orange island-wide coverage and full 4G and emerging 5G. As a French collectivity outside the EU single market, EU free roaming does not apply and most European carriers bill it at expensive rest-of-world rates. A Roamix Saint Barthelemy eSIM gives you local Orange network speeds without roaming surcharges. Budget 3 to 5 GB for a week, keep EUR cash for small beach vendors and note that SIM cards are not sold at Gustaf III Airport. Always install your eSIM before departure.
- Orange via Dauphin Telecom covers the entire 21 km2 island with strong 4G and expanding 5G, so signal is reliable everywhere you go.
- Saint Barthelemy is a French collectivity outside the EU, meaning EU roaming packages from European carriers do not apply and most carriers bill it at expensive international rates.
- A Roamix eSIM activates on arrival without a trip to a Gustavia or Saint-Jean store, where physical SIM cards are sold.
- The island uses EUR and is one of the Caribbean's most expensive destinations. Budget accordingly and carry cash for beach bars and small vendors.
- Gustaf III Airport has one of the world's shortest commercial runways. Flights from St Martin, Guadeloupe and San Juan are the main routes in.
Best way to get data in Saint Barthelemy
Because Saint Barthelemy falls outside the EU roaming zone, a Roamix eSIM typically saves significantly compared to standard carrier roaming for both European and North American visitors.
| Option | Best for | Good to know |
|---|---|---|
| Roamix eSIMRecommended | Best for: Most travellers | Instant activation on Orange infrastructure, no rest-of-world roaming bill and nothing to collect. SIM cards are not sold at the airport. |
| Local physical SIM | Best for: Extended stays needing a local number | Available at Dauphin Telecom outlets in Gustavia and Saint-Jean. Requires in-person visit and ID. Not available at Gustaf III Airport. |
| Pocket wifi | Best for: Groups sharing one connection | Available from a small number of Gustavia rental agencies but adds a device to charge and track. |
| Carrier roaming | Best for: Very short stays with no setup time | Saint Barthelemy is outside the EU roaming zone, so most European and American carriers apply expensive rest-of-world daily fees. |
Most hotels, villas and restaurants offer free wifi, and speeds are generally good given Orange's island-wide infrastructure. For mobile connectivity between venues and on beach excursions, your Roamix eSIM is more reliable than public hotspots.
How much data you need
Data needs in Saint Barthelemy are modest given the island's small size. The main uses are restaurant bookings, navigation on winding roads and staying in touch via WhatsApp.
3 to 5 GB
One week beach and dining holiday
Restaurant reservations, navigation between beaches, social uploads and daily messaging on a well-covered island.
6 to 8 GB
Two-week villa stay with watersports and day trips
Additional ferry and water taxi bookings, event lookups during regatta season and heavier social sharing.
15 GB or more
Remote work base in a villa
Video calls, laptop tethering and cloud uploads alongside beach and watersports activities.
Data per hour, by activity
- Maps and navigation
- 5 MB
- Social media and browsing
- 100 to 150 MB
- Music streaming
- 70 MB
- Standard video streaming
- 700 MB to 1 GB
- Video calls
- 500 MB to 1.5 GB
Download an offline map of the island before your first drive. Roads are narrow, unsigned in some areas and easy to miss on a moving screen without an offline backup.
How to set up a Saint Barthelemy eSIM
Install your Roamix Saint Barthelemy eSIM over wifi before departure. It activates automatically when your phone connects to Orange on arrival at SBH or in Gustavia, so you step ashore already online.
- 1
Buy your plan on the Roamix Saint Barthelemy eSIM page before departure.
- 2
Scan the QR code or tap to install the eSIM over wifi.
- 3
Label it Roamix and keep your home SIM as primary for calls and texts.
- 4
Enable data roaming for the Roamix line only.
- 5
Land at SBH or arrive at Gustavia ferry dock and the eSIM connects automatically to Orange.
Works on eSIM-capable phones including iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy models. The phone must be carrier unlocked.
Roamix sets the correct APN automatically on most devices. If data does not start on arrival, apply the APN from your order and toggle airplane mode.
No data on arrival usually means data roaming is off for the Roamix line. Check settings, select the network manually and restart.
Visa and entry for Saint Barthelemy
Saint Barthelemy is a French overseas collectivity and follows French immigration and Schengen rules for entry. EU and Schengen area citizens enter freely. Most other nationalities follow the same visa requirements as for metropolitan France.
- eVisa or ETA
- Citizens of countries with a Schengen visa waiver, including the United States, Canada, Australia and the United Kingdom, can visit without a visa for up to 90 days within any 180-day period under standard Schengen rules. No separate Saint Barthelemy visa or eTA exists.
- Passport validity
- Your passport or national ID must be valid for the duration of your stay. Most airlines and ferry services require at least three months of validity beyond the date of departure.
- Onward ticket
- Onward travel documentation and proof of accommodation may be requested at French border control in Guadeloupe or Martinique for connecting passengers.
Save your flight confirmation and accommodation booking offline. Use your Roamix eSIM to pull up documents at passport control in St Martin or Guadeloupe.
Entry rules change. Confirm current requirements with the French consulate or the prefecture of Saint Barthelemy at com-saint-barth.fr before booking.
When you land in Saint Barthelemy
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How people message here
French is the language of the island and locals use WhatsApp and standard SMS for everyday communication. Hotel staff and restaurant concierges communicate well in English given the heavy American and international visitor base.
Do you need a local number?
A local number is not required for most tourist stays. Restaurants, water taxi services and villa rentals all communicate via WhatsApp with your existing number.
Keep your home SIM active for two-factor authentication while using the Roamix line for data. All emergency calls (15, 17, 18) are free from any SIM.
Airports in Saint Barthelemy
SBH
Gustaf III Airport
Saint-Jean
The terminal is very small. Limited wifi is available but your Roamix eSIM is far more reliable given the terminal's size and throughput.
Gustaf III has one of the world's shortest commercial runways at 650 metres, ending at a road and beach. Flights arrive from St Martin (SXM), Guadeloupe (PTP) and San Juan (SJU). Activate your eSIM before the short flight so you are online the moment you land and can confirm your taxi or car rental in minutes.
SXM
Princess Juliana International Airport (St Martin)
Sint Maarten (connecting hub)
Free wifi in the main terminal at SXM. Most visitors to Saint Barthelemy connect through here for the 15-minute hop.
SXM is the most common gateway for Saint Barthelemy. Use Roamix data at SXM to confirm your onward connecting flight, check ferry schedules from Marigot as an alternative, and confirm your SBH accommodation before the short flight.
Apps and internet access in Saint Barthelemy
Saint Barthelemy has a fully open internet as a French collectivity, so all common apps work normally on a Roamix eSIM.
There is no censorship of social media, messaging or search. No VPN is needed for any mainstream service.
WhatsApp, works
Fully available for messaging and calls.
FaceTime, works
Works normally over data and wifi.
Google Maps and Search, works
No restrictions. Reliable signal island-wide.
Social media, works
Instagram, X, TikTok and Facebook all work without restriction.
Getting around Saint Barthelemy
Saint Barthelemy is 21 km2 and most visitors rent a car, scooter or quad to explore freely. Taxis are limited and expensive. Data is useful for navigation on the island's narrow and steeply winding roads.
Car and scooter rental
The primary way to explore the island independently. Rental cars and scooters are available at SBH airport and in Saint-Jean. Orange navigation works island-wide, though roads are narrow and some are one-way.
Taxis
Available at the airport and by phone booking. The island has a limited taxi fleet and supply can be scarce during peak season and late nights. Use WhatsApp to book your return from Colombier if arriving by hike.
Water taxi
The main way to reach Colombier Beach and for excursions to offshore snorkelling spots. Water taxis depart from the Gustavia harbour. Use Roamix data to check schedules and book in advance during busy periods.
Inter-island ferry
Voyager, Rapid Explorer and other operators run regular ferry services to Marigot on St Martin, the main island-hop option. Use your eSIM to check departure times and book return tickets.
Rent a car or Mini Moke immediately on arrival and download offline maps. The island's winding hillside roads are fun to drive but narrow, and local knowledge of the one-way sections around Gustavia is useful.
Money and payments in Saint Barthelemy
Saint Barthelemy uses the Euro. All major credit and debit cards are accepted at hotels, restaurants and most boutiques in Gustavia and Saint-Jean. Carry some EUR cash for beach vendors, small bakeries and tips.
- Cards and cash
- Cards are accepted nearly everywhere in Gustavia and Saint-Jean. Some beach bars and roadside vendors are cash only. There is no ATM at SBH airport, so use the Gustavia ATMs on arrival.
- ATMs
- ATMs are located in Gustavia at the main bank branches. The island has no large number of ATMs, so withdraw sufficient EUR in Gustavia rather than relying on machines at remote beach areas.
- Payment apps
- Apple Pay and Google Pay work at card terminals throughout the island. French banking apps are used by residents but not required for visitors.
- Tipping
- Tipping is not obligatory, as service is included by law in France. Rounding up or leaving a few EUR is appreciated at restaurants. Taxi drivers and villa staff also welcome a discretionary tip.
Daily budget
Saint Barthelemy is one of the Caribbean's most expensive destinations. Budget around 200 to 400 EUR a day per person for a mid-range stay excluding villa rental, and significantly more in peak season with upscale dining.
Local tips for Saint Barthelemy
- Language
- French is the official language. English is widely spoken in hotels, restaurants and shops given the high proportion of American and British visitors. Swedish place names persist from the 1784 to 1878 Swedish colonial period.
- Food
- Saint Barthelemy has one of the Caribbean's most sophisticated dining scenes, with French-influenced menus at clifftop restaurants, fresh seafood at Gustavia harbour-front spots and relaxed beach bars at Grand Cul-de-Sac and Saint-Jean.
- Plugs
- 220V, Type A, B and E plugs
Apps worth having
Capitaine Cook Water Taxi
transport
The main water taxi service operating from Gustavia harbour to Colombier Beach and offshore snorkelling spots. Book via their WhatsApp line.
The Fork (LaFourchette)
dining
Restaurant reservations for Saint Barthelemy's high-end dining scene, with online booking for Gustavia and Saint-Jean restaurants.
Windy
weather
Wind and sea conditions for kitesurfing, sailing and water taxi safety at Grand Cul-de-Sac lagoon and on the open water to Colombier.
Safety and health in Saint Barthelemy
Saint Barthelemy is extremely safe for tourists, with very low crime and a well-organised small-island administration. The main risks are ocean conditions, sunburn and the occasional tropical storm during the September to October hurricane window.
- Stay reachable
- Keep your Roamix eSIM active to monitor weather forecasts during hurricane season and to call the SAMU emergency line (15) in the event of a beach or water accident. Signal is strong across the island.
- Health
- There is a small hospital and medical centre in Gustavia. For serious cases, air evacuation to Guadeloupe or Martinique is required. Travel health insurance is strongly recommended. Tap water is technically safe but bottled water is widely available and preferred.
- Tap water
- Colombier and Gouverneur beaches can develop strong currents and shore breaks in unsettled weather. Check conditions with your hotel or a water taxi operator before swimming at remote beaches.
Networks and coverage in Saint Barthelemy
Saint Barthelemy's tiny 21 km2 footprint means Orange and Dauphin Telecom cover the entire island with strong 4G LTE and expanding 5G. A Roamix Saint Barthelemy eSIM connects you to Orange infrastructure the moment you land at SBH or step off the ferry at Gustavia, with no store visit and no rest-of-world roaming bill.
Orange (Dauphin Telecom)
Dominant carrier with island-wide coverage including Gustavia, Saint-Jean, Flamands, Grand Cul-de-Sac and Colombier. Strong 4G and 5G throughout with no significant dead zones on this compact island.
Digicel
Regional Caribbean operator with presence on the island, primarily used by locals and regional travellers. Coverage is more limited than Orange in some areas.
- Typical speeds
- 4G and early 5G deliver 20 to 80 Mbps across most of the island. Beach areas and hilltop roads vary but remain well connected.
- 5G
- Orange 5G is live across much of Saint Barthelemy including Gustavia, Saint-Jean and the main beach areas.
Because the island is so small, network performance is consistently excellent. You will not need to worry about dead zones. The main priority is avoiding rest-of-world roaming charges from your home carrier, which is where a Roamix eSIM saves the most.
Signal is strong across virtually the entire island given its small size. The main exception is inside some of the narrow valleys and on the steep hillside trails to Colombier Beach, where rocky terrain can limit signal briefly. Orange's Caribbean network uses standard LTE and 5G bands. A Roamix eSIM works on any recent unlocked phone from iPhone XS onward.
Where to go in Saint Barthelemy
Saint Barthelemy rewards visitors who move slowly. The island is 21 km2 but packs dramatically different beach environments, a charming Swedish-French capital in Gustavia and some of the best dining in the Caribbean into a very small space. A Roamix eSIM keeps restaurant reservations, water taxi bookings and navigation working as you loop between beaches and hilltop vistas.
Best time to visit
December to April for dry season, lower humidity and the busiest social calendar including the Bucket Regatta. May to November is quieter and less expensive, with occasional tropical storms in August to October.
Gustavia and Shell Beach
The island's capital clusters around a natural harbour once ruled by Sweden, with red-roofed stone warehouses, superyacht berths, boutique shops and the rocky Shell Beach just below the town walls. Fort Karl and Fort Oscar overlook the port.
- Shell Beach
- Fort Karl viewpoint
- Gustavia harbour and yacht marina
- St Barthelemy Municipal Museum
- La Ligne St Barth boutique
Excellent 4G and 5G throughout Gustavia. The harbour area and ferry terminal have strong signal from Orange.
Saint-Jean and the Airport Area
The island's busiest beach strip runs along the Saint-Jean Bay directly below the runway of Gustaf III Airport, where descending aircraft pass within metres of sunbathers. The area has the highest concentration of hotels, restaurants and watersports rentals.
- Saint-Jean Beach
- Eden Rock hotel and beach club
- Gustaf III Airport viewing point
- La Plage restaurant
- Saint-Jean watersports rental
Strong Orange 4G and 5G across Saint-Jean Bay and the Eden Rock area. Signal is consistent at beach level and along the main road.
Flamands and the Northwest
The longest and widest beach on the island, Flamands offers a more relaxed setting away from the airport buzz. The hillside above holds some of the island's most exclusive villas and the quiet Corossol fishing village sits just around the headland.
- Flamands Beach
- Corossol fishing village
- Inter Oceans Museum Corossol
- Hillside villa viewpoints
- Ansee des Cayes cove
Orange coverage is good across Flamands beach and the hillside villa roads. Corossol village has solid 4G.
Grand Cul-de-Sac and the Northeast
A sheltered lagoon beach suited to windsurfing, kitesurfing and paddleboarding, with calm water protected by a reef. The area has a small strip of beach restaurants and is a favourite for families and water sports enthusiasts.
- Grand Cul-de-Sac lagoon
- Kitesurfing and windsurfing rentals
- Maison de l'Amerique Latine beach club
- Snorkelling off the reef
- Le Sereno hotel beach
Orange 4G covers Grand Cul-de-Sac beach and the lagoon area well. Signal is reliable at the waterfront restaurants and on the water.
Gouverneur, Saline and Colombier Beaches
The island's most dramatic beach landscapes cluster in the south and southwest. Saline and Gouverneur are reached by short walks down sandy paths from the road and are both clothing-optional stretches with no facilities. Colombier is accessible only by a 30-minute clifftop hike or by water taxi from Gustavia.
- Colombier Beach (hike or boat access only)
- Anse de Grande Saline
- Gouverneur Beach
- Colombier hilltop trail views
- Water taxi excursion from Gustavia to Colombier
Orange covers the approach roads and hilltop paths. The beaches themselves, particularly Colombier's deep cove, have more limited signal. Download navigation before the hike.
Off the beaten path
The island's most secluded major beach, accessible only by a 30-minute clifftop hike or by water taxi from Gustavia. A calm, crystal-clear cove backed by cacti and boulders with no facilities and no road access.
Signal: Orange covers the hilltop trail path and the top of the descent, but signal weakens in the deep cove at beach level. Download maps and the return water taxi schedule before descending.
Gustavia's Swedish-era red-roofed warehouses and harbour walls frame one of the Caribbean's most photogenic superyacht anchorages. Shell Beach is a short walk from the town centre, offering swimming and sunset views from beneath Fort Karl.
Signal: Excellent Orange 4G and 5G throughout Gustavia and the harbour front. The port area has the best data speeds on the island.
A long, wide and often clothing-optional beach with no commercial facilities, backed by salt ponds and low scrub. Consistently rated one of the best beaches in the Caribbean for its raw natural setting.
Signal: Orange coverage reaches the parking area and the sandy path to the beach. The beach itself has limited signal in some sections.
A sheltered reef lagoon with flat, warm water that is ideal for kitesurfing, windsurfing and paddleboarding. The reef also offers snorkelling and the lagoon strip has several beach restaurants.
Signal: Orange 4G is reliable at Grand Cul-de-Sac and on the lagoon water. Watersports operators use WhatsApp for lesson bookings.
Two Swedish-built 18th-century forts flanking Gustavia harbour give the best elevated views over the anchorage and the Caribbean beyond. Fort Karl is open to the public and the short climb rewards with panoramic photos.
Signal: Strong Orange signal at both fort sites overlooking Gustavia harbour.
A curved, cliff-backed beach in the south of the island reached by a short steep road from the village of Lurin. Known for clear water, reliable body surfing waves and a secluded atmosphere with one beach bar.
Signal: Orange covers the descent road and the upper beach area. The beach curves around a sheltered bay with consistent signal.
The most authentically local settlement on the island, where descendants of the original French settlers still weave traditional latania straw hats and fisherfolk maintain small wooden boats in the shallows. A quiet contrast to the Gustavia luxury scene.
Signal: Orange 4G covers Corossol village and the small harbour.
A dramatic hotel built into a single volcanic rock outcrop above Saint-Jean Bay, with a beach bar and beach club open to non-residents. The rock gives panoramic views of the runway approach and the bay curve below.
Signal: Strong Orange 4G and 5G throughout the Saint-Jean bay area.
A legendary open-air bar that has operated since 1949 and inspired Jimmy Buffett's song Cheeseburger in Paradise. Sailors, locals and visitors mix at plastic tables under the shade trees in the centre of Gustavia, one of the most characterful spots in the Caribbean.
Signal: Strong Orange 4G in central Gustavia.
The longest and broadest beach on the island, with consistently calm Atlantic-facing water, a quiet residential beach road and the iconic La Langouste and Bagatelle beach restaurants at either end.
Signal: Orange covers Flamands beach and the beach road. Signal is reliable at the handful of beach restaurants.
Events and seasons in Saint Barthelemy
February to March
Carnival de Saint Barthelemy
Gustavia and island-wide
A small but spirited French Caribbean carnival with parades through Gustavia streets, costumed floats and music events in the weeks before Lent. Less extravagant than the Guadeloupe carnival but a genuine local celebration.
March
Saint Barths Bucket Regatta
Gustavia harbour
One of the Caribbean's most prestigious superyacht regattas, drawing the world's largest and most spectacular sailing yachts to race around Saint Barthelemy over four days in March. Gustavia harbour fills with ocean-going vessels worth hundreds of millions.
April
Saint Barths Film Festival
Gustavia and Saint-Jean
A boutique Caribbean film festival bringing independent cinema, directors and industry figures to intimate screenings at island venues. A growing event that reflects Saint Barthelemy's position as a meeting point for creative and affluent travellers.
April to May
Saint Barths Gourmet Festival
Island-wide restaurants
A week-long food and wine festival in which Saint Barthelemy's top restaurants invite visiting chefs from France and internationally for special tasting menus, wine dinners and cooking events, celebrating the island's position as the culinary capital of the French Caribbean.
July 14
Bastille Day Celebrations
Gustavia
France's national holiday is celebrated on Saint Barthelemy with a fireworks display over Gustavia harbour, military ceremonies and open-air parties, combining French patriotic tradition with a Caribbean atmosphere.
August 24
Festival of Gustavia (Patron Saint Day)
Gustavia
The feast day of Saint Barthelemy, the island's patron saint, celebrated with an open-air mass at the Gustavia church, traditional music and dancing in the harbour area and local food stalls along the waterfront.
October 31
Halloween in Saint Barthelemy
Gustavia and island-wide
Halloween has become a significant celebration on Saint Barthelemy, with American and European visitors joining locals for elaborately themed parties at Gustavia bars and beach clubs, making it one of the more unexpectedly lively nights of the low season.
November
SPID Regatta Saint Barthelemy
Gustavia harbour
A local and regional sailing regatta bringing smaller racing yachts and Caribbean sailors to Gustavia before the main winter season. A more accessible event than the Bucket Regatta, with a lively post-race scene at Gustavia harbour bars.
December 20 to 26
Christmas Week Festivities
Gustavia and island-wide
Christmas week marks the start of the island's high season, with the harbour filling with superyachts, Gustavia boutiques at their most festive and the island's dining scene operating at its most refined and expensive levels.
December 31 to January 1
New Year Fireworks and Celebrations
Gustavia harbour
Gustavia harbour hosts the Caribbean's most glamorous New Year celebration, with superyacht fireworks, open-air parties and a gathering of international visitors and wealthy yacht owners that makes it one of the world's most exclusive New Year destinations.
Through the year
- Spring
- April and May bring shoulder-season rates with pleasant weather, the Film Festival and the Gourmet Festival. A good time to visit for quality dining and activities without the peak crowds.
- Summer
- June to August is warm and humid with fewer tourists and notably lower prices than winter. Some restaurants and villas close for a month during July or August. Water conditions are calmer for snorkelling and kayaking.
- Fall
- September to November is hurricane season. The island occasionally experiences tropical storms and some establishments close in September and October. Late November sees the SPID regatta and the start of the winter season.
- Winter
- December to April is the peak season, with the Bucket Regatta in March, New Year in Gustavia and the highest prices and most complete services of the year. Book everything months ahead.
Working remotely from Saint Barthelemy
Saint Barthelemy is not a typical remote-work destination given its high cost, but villa stays with good wifi and Orange's island-wide 4G make it a viable option for short working trips combined with a luxury holiday.
- Connection
- Orange 4G and 5G handle video calls and tethering well. A Roamix plan with 15 GB or more covers a full working week of calls and uploads alongside beach activities.
Most upscale villas and hotels offer fast fibre wifi. Use your Roamix eSIM as a secure backup when working from beach restaurants or public areas on the island.
