French Guiana weather live forecast

Today's maximum temperature in French Guiana is expected to be 27°C. Select a day from the live weather forecast for French Guiana (Cayenne) for more weather parameters.

Saturday
10th Jan
27

25

4

11
Sunday
11th Jan
28

25

4

7
Monday
12th Jan
28

25

4

8
Tuesday
13th Jan
28

25

3

11
Wednesday
14th Jan
28

25

3

6

5-day weather forecast updated at 04:00 on Friday 9th January 2026 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 Saturday 10th January 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 11 (Extreme) 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 10 kph from the east.

27
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
11
UV index (Extreme)
85
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
10
kph wind from E

French Guiana weather for Sunday 11th January 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 20-30 mm of rainfall expected with 81% chance of some rain and a light breeze of 12 kph from the east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
81
% chance of some rain
<30
mm of rainfall expected
L
low heat & humidity
12
kph wind from E

French Guiana weather for Monday 12th January 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 28°C, low 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 89% chance of some rain and a light breeze of 11 kph from the east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
89
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
11
kph wind from E

French Guiana weather for Tuesday 13th January 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11+ (Extreme) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 92% chance of some rain and a light breeze of 11 kph from the east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
11
UV index (Extreme)
92
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
11
kph wind from E

French Guiana weather for Wednesday 14th January 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 92% chance of some rain and a light breeze of 12 kph from the east.