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.

Thursday
2nd Jul
29

26

4

8
Friday
3rd Jul
28

25

4

7
Saturday
4th Jul
28

25

1

8
Sunday
5th Jul
29

25

5

7
Monday
6th Jul
29

25

4

11

5-day weather forecast updated at 04:00 on Thursday 2nd July 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 Thursday 2nd July 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 29°C, 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 90% chance of some rain and a light breeze of 12 kph from the south-east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
90
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from SE

French Guiana weather for Friday 3rd July 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 10-20 mm of rainfall expected with 76% chance of some rain and a light breeze of 9 kph from the east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
76
% chance of some rain
<20
mm of rainfall expected
L
low heat & humidity
9
kph wind from E

French Guiana weather for Saturday 4th July 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 86% chance of some rain and a light breeze of 9 kph from the east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
8
UV index (Very High)
86
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
9
kph wind from E

French Guiana weather for Sunday 5th July 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 88% chance of some rain and a light breeze of 9 kph from the east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
88
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
9
kph wind from E

French Guiana weather for Monday 6th July 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 29°C, 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 89% chance of some rain and a light breeze of 8 kph from the east.