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
8th Oct
29

27

7

11
Thursday
9th Oct
30

26

5

11
Friday
10th Oct
29

26

6

11
Saturday
11th Oct
30

26

8

11
Sunday
12th Oct
31

26

7

11

5-day weather forecast updated at 04:00 on Tuesday 7th 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 8th October 2025

Expect isolated thunderstorms 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 2-5 mm of rainfall expected with 42% chance of some rain and a gentle breeze of 15 kph from the east.

29
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
42
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
15
kph wind from E

French Guiana weather for Thursday 9th 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 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 14 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
62
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from E

French Guiana weather for Friday 10th October 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 72% chance of some rain and a gentle breeze of 13 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
72
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from E

French Guiana weather for Saturday 11th 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 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 51% chance of some rain and a gentle breeze of 14 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
51
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
14
kph wind from E

French Guiana weather for Sunday 12th October 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 31°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 31% chance of some rain and a gentle breeze of 13 kph from the east.