French Guiana is a French overseas department (DROM): you pay in euros, bank cards work and ATMs exist. On paper, nothing changes compared with mainland France. On the ground, the moment you leave the Cayenne–Kourou coastline, the situation shifts dramatically. After guiding hundreds of travellers out of Cayenne, here is our verdict: the question of how to pay in French Guiana is not a logistical detail, it is what separates a smooth road trip from a day wasted hunting for an ATM that simply isn’t there.
Why a bank card isn’t enough in French Guiana
French Guiana covers a territory the size of Portugal for around 290,000 inhabitants, 90% of whom are concentrated on a thin coastal strip. Banking coverage follows the same logic: everything is clustered along the Cayenne – Rémire-Montjoly – Matoury – Macouria – Kourou axis. As soon as you head inland or follow the border rivers, the ATMs can be counted on one hand.
Three realities to take on board before you set off:
- The mobile network is temperamental. Without stable 4G, card payment terminals stop working. Many inland businesses simply don’t have a terminal at all.
- Contactless is not universal. The small carbets, grilled-fish stalls along the riverbanks and markets only take cash.
- On weekends and public holidays, the ATMs in small towns empty out fast and aren’t always refilled before Monday.
Our rule, passed on to every traveller: withdraw cash while you’re still on the coast, never after. Think of Cayenne, Kourou and Saint-Laurent-du-Maroni as your only three real cash filling stations.
How much cash should you plan for?
For a couple on a 4- to 5-day road trip away from the coast, we recommend setting off with €250 to €400 in cash, in varied denominations (many small businesses won’t give change for a €50 note). Expect typical cash spending such as:
- A meal in a carbet or by the river: €12 to €20 per person
- A dugout-canoe crossing on the Maroni: €15 to €40 depending on distance
- A night in a hammock with mosquito net in a carbet: €15 to €25
- A tank of fuel at a bush station: often cash only, plan for €60 to €80
- Amerindian or Bushinenge crafts, roadside fruit: a few euros, always in cash

Map of the last ATMs before the Maroni and the Oyapock
This is the heart of the guide. Here, by direction, are the last points where you can withdraw before ending up in a zone with no reliable ATM.
Heading West: towards Saint-Laurent and the Maroni
The RN1 links Cayenne to Saint-Laurent-du-Maroni, around 250 km and 3 to 3.5 hours of driving.
- Kourou (~60 km from Cayenne): the last major banking hub before a long stretch. Several ATMs, stock up here.
- Sinnamary and Iracoubo: small towns along the way, one or two ATMs each, but don’t count on them on a weekend. Emergency use only.
- Saint-Laurent-du-Maroni: this is your last real withdrawal point before the border. Several banks and ATMs around the centre and the Camp de la Transportation. Beyond that, towards Apatou, Maripasoula or the river villages, assume there’s nothing left. In Maripasoula, reachable mainly by canoe or plane, cash is king and ATMs are rare and often empty.
- Awala-Yalimapo (the leatherback turtles, ~50 km from Saint-Laurent): no reliable ATM. Withdraw in Saint-Laurent before heading up to watch the night-time nesting.
Heading East: towards the Oyapock and Brazil
The Cayenne – Saint-Georges-de-l’Oyapock route runs around 190 km, about 2.5 to 3 hours through the forest.
- Régina: a halfway stop with very limited banking facilities. Don’t bet on it.
- Saint-Georges-de-l’Oyapock: the border crossing with Brazil. There are one or two ATMs, but they are regularly out of service or out of cash, and the area runs largely on Brazilian reais on the Oiapoque side. Withdraw generously before leaving, from Cayenne or Roura.
Heading South and the Kaw marshes
- Roura: the last town with a few facilities before the descent towards the Kaw marshes and the southern tracks. Beyond that, towards Kaw village or Cacao (the Hmong community and its Sunday market), plan for everything in cash. The Cacao market, famous for its pho soup and crafts, runs almost exclusively on cash.
Cash, cards, cheques: where to use what in French Guiana
To make things clear, here is the concrete breakdown by location.
Where cards work without a hitch
- Supermarkets and hypermarkets in Cayenne, Matoury, Rémire-Montjoly, Macouria and Kourou
- Petrol stations along the coastal axis
- Restaurants and hotels in the capital
- Car rental at Félix-Éboué airport (Matoury) — a car is essential in French Guiana, and the rental is of course paid by card
Where cash is mandatory
- The Cayenne market (market square, in the morning) for spices, fish and awara
- The carbets and tables along the Maroni and the Oyapock
- Canoe excursions and certain independent guides
- The markets of Cacao and the inland villages
- Small producers, crafts, fruit sold by the roadside
A word on cheques: they still circulate in certain administrations and among a few local providers, but never count on them as a traveller. The cash + card combo covers 100% of situations.
