French Guiana weather live forecast

Tomorrow's maximum temperature in French Guiana is expected to be 31°C.

Thursday
8th May

31

25

6
Friday
9th May

30

25

5
Saturday
10th May

31

25

4
Sunday
11th May

30

25

4
Monday
12th May

30

25

1

5-day weather forecast updated at 04:00 on Thursday 8th May 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 Thursday 8th May 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 74% chance of some rain and little or no wind of 6 kph from the north-east.

31
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
7
UV index (High)
74
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
6
kph wind from NE

French Guiana weather for Friday 9th May 2025

Expect isolated thunderstorms 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 10-20 mm of rainfall expected with 84% chance of some rain and a light breeze of 11 kph from the east.

30
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
8
UV index (Very High)
84
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
11
kph wind from E

French Guiana weather for Saturday 10th May 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 83% chance of some rain and a light breeze of 12 kph from the east.

31
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
9
UV index (Very High)
83
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from E

French Guiana weather for Sunday 11th May 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 85% chance of some rain and a light breeze of 9 kph from the east.

30
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
85
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
9
kph wind from E

French Guiana weather for Monday 12th May 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 85% chance of some rain and a light breeze of 7 kph from the east.