French Guiana weather live forecast

Tomorrow's maximum temperature in French Guiana is expected to be 84°F.

Sunday
13th Jul

84

77

5
Monday
14th Jul

84

79

4
Tuesday
15th Jul

86

77

1
Wednesday
16th Jul

86

77

4
Thursday
17th Jul

84

77

4

5-day weather forecast updated at 04:00 on Sunday 13th July 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 Sunday 13th July 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 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 90% chance of some rain and a light breeze of 4 mph from the east.

84
°F maximum temperature
77
°F minimum temperature
isolated thunderstorms
5
hours of sunshine
8
UV index (Very High)
90
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
4
mph wind from E

French Guiana weather for Monday 14th July 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 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 92% chance of some rain and a light breeze of 4 mph from the east.

84
°F maximum temperature
79
°F minimum temperature
isolated thunderstorms
4
hours of sunshine
6
UV index (High)
92
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
4
mph wind from E

French Guiana weather for Tuesday 15th July 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 77% chance of some rain and a light breeze of 5 mph from the east.

86
°F maximum temperature
77
°F minimum temperature
isolated thunderstorms
1
hour of sunshine
10
UV index (Very High)
77
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
5
mph wind from E

French Guiana weather for Wednesday 16th July 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 94% chance of some rain and a light breeze of 6 mph from the east.

86
°F maximum temperature
77
°F minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
94
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
6
mph wind from E

French Guiana weather for Thursday 17th July 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 0-2 mm of rainfall expected with 86% chance of some rain and a light breeze of 5 mph from the south-east.