French Guiana weather live forecast

Tomorrow's maximum temperature in French Guiana is expected to be 28°C.

Monday
23rd Jun

28

24

1
Tuesday
24th Jun

28

26

2
Wednesday
25th Jun

29

25

3
Thursday
26th Jun

30

25

4
Friday
27th Jun

29

25

4

5-day weather forecast updated at 04:00 on Monday 23rd June 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 Monday 23rd June 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 60% chance of some rain and a light breeze of 7 kph from the east.

28
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
7
UV index (High)
60
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
7
kph wind from E

French Guiana weather for Tuesday 24th June 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 68% chance of some rain and a light breeze of 8 kph from the east.

28
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
6
UV index (High)
68
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
8
kph wind from E

French Guiana weather for Wednesday 25th June 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 72% chance of some rain and a light breeze of 10 kph from the east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
6
UV index (High)
72
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
10
kph wind from E

French Guiana weather for Thursday 26th June 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 71% chance of some rain and a light breeze of 10 kph from the east.

30
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
71
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
10
kph wind from E

French Guiana weather for Friday 27th June 2025

Expect isolated thunderstorms in French Guiana with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 78% chance of some rain and a light breeze of 10 kph from the east.