French Guiana weather live forecast

Today's maximum temperature in French Guiana is expected to be 30°C. Select a day from the live weather forecast for French Guiana (Cayenne) for more weather parameters.

Wednesday
22nd Oct
30

27

7

11
Thursday
23rd Oct
29

26

7

11
Friday
24th Oct
30

26

5

11
Saturday
25th Oct
30

26

7

11
Sunday
26th Oct
30

26

5

10

5-day weather forecast updated at 04:00 on Wednesday 22nd October 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 22nd October 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 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 19% chance of some rain and a gentle breeze of 15 kph from the east.

30
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
19
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from E

French Guiana weather for Thursday 23rd October 2025

Expect broken clouds in French Guiana with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from E

French Guiana weather for Friday 24th October 2025

Expect broken clouds 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 mm of rainfall expected and a gentle breeze of 14 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
broken clouds
5
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from E

French Guiana weather for Saturday 25th October 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 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 39% chance of some rain and a gentle breeze of 13 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
39
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from E

French Guiana weather for Sunday 26th October 2025

Expect broken clouds in French Guiana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.