French Guiana weather live forecast

Tomorrow's maximum temperature in French Guiana is expected to be 82°F.

Wednesday
16th Apr

82

81

3
Thursday
17th Apr

84

81

4
Friday
18th Apr

84

81

4
Saturday
19th Apr

84

79

3
Sunday
20th Apr

84

79

4

5-day weather forecast updated at 04:00 on Wednesday 16th April 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 16th April 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 82°F, moderate levels of heat & humidity, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 20-30 mm of rainfall expected with 83% chance of some rain and a light breeze of 7 mph from the east.

82
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
3
hours of sunshine
7
UV index (High)
83
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
7
mph wind from E

French Guiana weather for Thursday 17th April 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 8 mph from the east.

84
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
63
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
8
mph wind from E

French Guiana weather for Friday 18th April 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 84°F, 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 83% chance of some rain and a gentle breeze of 8 mph from the east.

84
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
83
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
8
mph wind from E

French Guiana weather for Saturday 19th April 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 94% chance of some rain and a light breeze of 7 mph from the east.

84
°F maximum temperature
79
°F minimum temperature
isolated thunderstorms
3
hours of sunshine
6
UV index (High)
94
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
7
mph wind from E

French Guiana weather for Sunday 20th April 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 84°F, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 80% chance of some rain and a light breeze of 7 mph from the east.