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French Guiana

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French Guiana Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-10

French Guiana year round climate

  • Spring (March-May): Average 25–27°C, warm climate with higher humidity. This is a season with relatively more rainfall throughout the year, with slightly higher rainfall in May. Nevertheless, overall rainfall remains at low levels. Common activities: Exploring indoor attractions, cultural sites, or outdoor activities during cooler periods. Recommended attire: Light, breathable clothing, rain gear (for occasional showers).
  • Summer (June-August): Average 25–27°C, hot and humid weather. Rainfall is moderate in June and July, starting to turn dry in August. Common activities: Beach activities, water sports, exploring national parks (heat protection necessary). Recommended attire: Light, loose clothing, sun protection, hats, sunglasses.
  • Autumn (September-November): Average 27–28°C, the hottest and driest period of the year. Rainfall is extremely low, especially in September, which is the driest month of the year. Common activities: Excellent for outdoor adventures, hiking, and wildlife viewing, as there is minimal rain disruption. Recommended attire: Extremely light and breathable summer clothing, with enhanced sun protection.
  • Winter (December-February): Average 25–26°C, relatively lower temperatures but still warm. High humidity, moderate rainfall in December, followed by drier conditions. Common activities: Enjoying the warm and pleasant weather, participating in local festivals, river tours. Recommended attire: Light summer clothing.

French Guiana climatological average

Annual average temperature: approx. 26.3°C / Annual rainfall: approx. 115 mm / Summer humidity: 70-85% / Rainiest month: May

French Guiana monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
25.4°C
6.4
February
25.9°C
3.4
March
26.6°C
6.3
April
26°C
11.8
May
25.7°C
23.4
June
25.5°C
17.9
July
25.8°C
15.5
August
26.8°C
5.4
September
27.8°C
1.8
October
27.8°C
3.9
November
27.2°C
6.5
December
25.2°C
13.1

French Guiana weather for the next seven days

12/16
Tuesday
Moderate rain
25.4°C/21.8°C
12/17
Wednesday
Patchy rain nearby
24.2°C/21.5°C
12/18
Thursday
Moderate rain
28.4°C/21.4°C
12/19
Friday
Moderate rain
24.8°C/20°C
12/20
Saturday
Patchy rain nearby
30.2°C/20.1°C
12/21
Sunday
Patchy rain nearby
30.3°C/20.3°C
12/22
Monday
Patchy rain nearby
27.7°C/20.3°C

French Guiana Frequently Asked Questions and Useful Information for Travel

Can you vacation in French Guiana?

French Guiana offers a unique and diverse atmosphere for a vacation. Visitors can enjoy activities such as canoeing, tropical camping, wildlife tours, and exploring its rich natural landscapes.

Can Americans travel to French Guiana?

U.S. citizens with a valid U.S. passport do not need a visa for a limited stay in French Guiana. It is advisable to check other specific entry requirements and the maximum allowed duration of stay before your trip.

Why do people go to French Guiana?

People are drawn to French Guiana for its one-of-a-kind travel experience, blending European administration with untamed tropical wilderness. Travelers explore a rich tapestry of history and culture, from colonial architecture to the infamous Devil's Island.

What are some unique experiences in French Guiana?

French Guiana is renowned for its connection to space exploration, housing the Guiana Space Centre in Kourou, where rocket launches can sometimes be observed. The region also boasts incredible biodiversity within its vast rainforests, offering opportunities for eco-tourism and wildlife spotting.

What kind of natural attractions can be found in French Guiana?

French Guiana is a haven for nature lovers, featuring extensive Amazonian rainforests teeming with wildlife. Visitors can explore national parks, discover diverse flora and fauna, and experience the unique ecosystems of this South American territory.