French Guiana weather live forecast

Today's maximum temperature in French Guiana is expected to be 29°C. Select a day from the live weather forecast for French Guiana (Cayenne) for more weather parameters.

Wednesday
26th Nov
29

26

4

9
Thursday
27th Nov
29

27

5

9
Friday
28th Nov
30

26

5

8
Saturday
29th Nov
30

26

6

7
Sunday
30th Nov
30

26

5

11

5-day weather forecast updated at 04:00 on Wednesday 26th November 2025 GMT

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The 5-day weather forecast for French Guiana, represented by Cayenne, (Cayenne) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

French Guiana weather forecast by day

Below are the detailed weather forecasts for French Guiana for the next 5 days. The forecasts shown are for Cayenne and may not represent the whole of French Guiana. Browse more destinations in French Guiana to view more weather forecasts.

French Guiana weather for Wednesday 26th November 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a light breeze of 12 kph from the north-east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
9
UV index (Very High)
34
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from NE

French Guiana weather for Thursday 27th November 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 51% chance of some rain and a light breeze of 11 kph from the east.

29
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
9
UV index (Very High)
51
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
11
kph wind from E

French Guiana weather for Friday 28th November 2025

Expect broken clouds in French Guiana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
broken clouds
5
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
10
kph wind from E

French Guiana weather for Saturday 29th November 2025

Expect broken clouds in French Guiana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
broken clouds
6
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from E

French Guiana weather for Sunday 30th November 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 59% chance of some rain and a light breeze of 9 kph from the north-east.