TravelDatakit

Best eSIM for French Guiana

French Guiana is an EU outermost region — EU Roam Like at Home applies, and EU/EEA SIM cards work at domestic rates. The vast Amazon interior has no mobile signal regardless of operator; plan as if offline for any journey beyond the coastal strip.

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EU RLAH applies — French SIM works domestically5 providers compared

Last checked: May 2026. Plans and prices change — verify before purchase.

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Field tip — Amazon interior has no mobile signal

Your French SIM works in French Guiana with no roaming charges. Coverage is strong in Cayenne, Kourou (Space Centre) and Saint-Laurent-du-Maroni on the Suriname border. The Amazonian interior — Maroni river communities, Saül village (accessible by light aircraft), Nouragues nature reserve — has no mobile coverage on any network. Download all maps, emergency contacts and navigation data before any jungle trip.

Field tip — Cayenne and Kourou have good 4G; the Amazonian interior beyond the coastal strip is completely offline

Cayenne, Kourou and main coastal towns have good 4G. Saint-Laurent-du-Maroni (ferry to Suriname) has decent coverage. Beyond the coastal strip, coverage drops rapidly. Saül (eco-tourism village in the interior) is only accessible by light aircraft and has no mobile coverage. River trips into the interior Amazon are entirely offline.

Prices sourced from provider websites. Network information sourced from provider documentation and independent travel guides (2026).

eSIM — French Guiana

Our selection of providers for French Guiana — data-only plans, install before arrival. Use the calculator above to compare more options for your specific trip.
Yesim
Prepaid tiers (1–30 GB, 30-day validity) and a day-by-day unlimited ladder (1–30 days). Entry $3.12 for 1 GB/30 days. 7-day unlimited at $26.40. Carrier not disclosed.
From $3.12 Check plans on Yesim
Roamless
Prepaid tiers from $3.95/1 GB (30-day validity). Network not confirmed. No unlimited tier.
$1.44 per GB Check plans on Roamless
Airalo
Plans (1–20 GB). Routes via Orange Guyane / SFR Guyane (4G). Entry $4.50/1 GB.
Unlimited from $11.50
Unlimited up to 3 GB/day at full speed, then throttled to 1 Mbps.
Check plans on Airalo
More options — aggregators
MobiMatter Not reviewed
Marketplace aggregating plans from 30+ eSIM providers.
30+ providers
Browse plans on MobiMatter
SimOptions Not reviewed
Multi-provider aggregator with coverage across 200+ destinations.
200+ destinations
Browse plans on SimOptions

Network coverage in French Guiana

French Guiana has four mobile operators: Orange Caraïbe (market leader, 96% population coverage), SFR Caraïbe (Outremer Telecom), Free Caraïbe, and Digicel AFG. Orange launched 5G in 2023 — ahead of the Antilles — covering Cayenne, Rémire-Montjoly, Kourou, Matoury, Macouria and Saint-Laurent-du-Maroni. French Guiana is an EU outermost region: EU Roam Like Home applies, and French and EU/EEA SIM cards work at domestic rates.

French Guiana covers 84,000 km² — larger than Austria — with the vast majority being Amazonian rainforest. Mobile coverage is limited to the coastal settlement band and main road axes; ARCEP notes that road-axis performance in Guyane is weak compared to metropolitan France, with more coverage gaps. The interior — including Saül (jungle hiking), the upper Maroni river and the Amazônia border zone — has no mobile signal. Download all offline maps before entering the interior. The tourist sites with reliable coverage: Cayenne, Kourou (space centre viewing area), the Iles du Salut access by boat (signal from the mainland coast).

Roaming or eSIM — should you buy?

YOUR SITUATION → USE THIS
Your carrier includes French Guiana at a clear, affordable rate→Use roaming — no action needed
Coming from EU or UK→eSIM is the standard choice
Coming from US / Canada / Australia / NZ — carrier charges per-day→eSIM cheaper for stays over 2-3 days
Coming from Asia — your carrier may have a regional deal→Check your carrier rates first
Coming from another region→Check your carrier rates first — eSIM is usually cheaper than per-MB roaming

Arrival protocol in French Guiana

Before departure from home
Check your phone supports eSIM — dial *#06#, look for an EID number.
Install the eSIM before your flight — activation may require connectivity that is no longer available abroad.
Save the QR code and setup instructions offline (screenshots or PDF).
Download offline maps for your destinations before you leave.
After landing in French Guiana
Go to Settings → Mobile data → select the eSIM as your data line.
Turn off data roaming on your home SIM to avoid background charges.
Test with a page load. If nothing loads, toggle airplane mode for 30 seconds and try again before deleting the profile.

VPN, passwords and documents

On hotel or café Wi-Fi, a VPN can be useful to keep your browsing private from the network operator. A password manager is also worth having for managing account access on the road. A secure cloud backup of your passport, visa and accommodation details can also be useful — keep an offline copy too. None of these are mandatory.

Mistakes to avoid in French Guiana

Leaving data roaming on your home SIM. Background apps will generate charges.
Deleting the eSIM if it does not connect immediately. Check settings first.
Installing the eSIM after arrival. Activation may require connectivity that is no longer available abroad.
Complete your travel kit
eSIM for mobile data
VPN for public Wi-Fi
Password manager
Cloud + offline docs
See the full checklist →

Common questions about eSIM in French Guiana

Do EU roaming rules apply in French Guiana?
Yes. French Guiana is a French overseas department and an EU Outermost Region (RUP). EU Roam Like At Home rules apply. French SIM cards work domestically. Non-EU visitors should use a travel eSIM.
Is there coverage at the Guiana Space Centre in Kourou?
Yes. Kourou has good 4G coverage. The Guiana Space Centre visitor area has reliable signal. The interior Amazonian areas around Kourou — rainforest and rivers — have limited to no coverage.

Continuing your trip in South America?

Many travellers combine French Guiana with neighbouring countries. See our guides for eSIM in Suriname, eSIM in Guyana and eSIM in Brazil. For multi-country trips combining French Guiana with neighbouring South America destinations, our South America regional plan comparison may be useful.