Best time to visit French Guiana

Q: When is the best time to visit French Guiana?

The best time to visit French Guiana (Cayenne) is January, February, March and May based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C.

Q: Which is the hottest month in French Guiana?

The hottest time of year in Cayenne, French Guiana is normally October. Expect maximum daytime temperatures to reach 32°C with very high heat and humidity.

Q: Which month has the most rain in French Guiana?

In terms of rainfall, May is usually the wettest month in Cayenne, French Guiana with 544mm on average. There are normally 26 days in May with some rain.

Q: When is it sunniest in French Guiana?

The sunniest time of year in Cayenne, French Guiana is normally October with bright sunshine on average for 70% of daylight hours; that's 8 hours of sunshine per day.

Q: When is the sea warmest in French Guiana?

The sea is usually at its warmest in Cayenne, French Guiana in August when the water temperature reaches 28°C.

Find the best time to visit French Guiana and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

French Guiana by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for French Guiana

Rentalcars.com: Discount car hire worldwide

Sale

Compare car hire prices to find best deal online
Book flexible bookings with free cancellation policy
No hidden fees + price match guarantee

Go to Rentalcars.com deal >>

View all Rentalcars.com offers

When is the best time to visit French Guiana?

The best time to visit French Guiana (Cayenne) is January, February, March and May based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]

Change the criteria to reflect your weather preferences.

4
Jan
4
Feb
4
Mar
3.5
Apr
4
May
3.5
Jun
2.5
Jul
2
Aug
2
Sep
2
Oct
2.5
Nov
3.5
Dec

Change criteria

Max Day Temperature (°C)

29
Jan
29
Feb
29
Mar
30
Apr
29
May
30
Jun
31
Jul
32
Aug
32
Sep
32
Oct
31
Nov
30
Dec

Which is the hottest month in French Guiana?

The hottest time of year in Cayenne, French Guiana is normally October. Expect maximum daytime temperatures to reach 32°C with very high heat and humidity.

Which month has the most rain in French Guiana?

In terms of rainfall, May is usually the wettest month in Cayenne, French Guiana with 544mm on average. There are normally 26 days in May with some rain.

When is it sunniest in French Guiana?

The sunniest time of year in Cayenne, French Guiana is normally October with bright sunshine on average for 70% of daylight hours; that's 8 hours of sunshine per day.

When is the sea warmest in French Guiana?

The sea is usually at its warmest in Cayenne, French Guiana in August when the water temperature reaches 28°C.

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for French Guiana, represented by Cayenne, (Cayenne) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)

French Guiana weather overview

French Guiana is a small country in South America bordering Brazil and Suriname, with an Atlantic coastline at its northern edge. It consists largely of lowland plains with small hills to the south, and has an equatorial rainforest interior. Expect a climate of Turkish bath-style sultriness throughout the year, though conditions are at their most steamy during the rainy season, which stretches from December to mid-July.

Best time to visit is August and November, when conditions are driest and sunniest, and humidity not too oppressive.

What to pack for French Guiana weather

Take very light cotton clothing and reliable waterproofs if you are visiting in the long wet season. Add a wrap for cooler evenings.

French Guiana travel features

Do you want to learn more about French Guiana? Read our latest features covering travel tips and insider destination guides on where to go and what to do in French Guiana.

We don't currently have any travel features on French Guiana. Discover more about holiday destinations around the world with this selection of general travel articles.