French Guiana weather live forecast

Today's maximum temperature in French Guiana is expected to be 28°C. Select a day from the live weather forecast for French Guiana (Cayenne) for more weather parameters.

Thursday
5th Mar
28

26

2

9
Friday
6th Mar
28

27

4

5
Saturday
7th Mar
28

26

1

8
Sunday
8th Mar
26

26

0

5
Monday
9th Mar
27

26

0

11

5-day weather forecast updated at 04:00 on Thursday 5th March 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 5th March 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 15 kph from the north-east.

28
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
9
UV index (Very High)
54
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
15
kph wind from NE

French Guiana weather for Friday 6th March 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 68% chance of some rain and a gentle breeze of 13 kph from the north-east.

28
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
5
UV index (Moderate)
68
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
13
kph wind from NE

French Guiana weather for Saturday 7th March 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 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 70% chance of some rain and a light breeze of 12 kph from the north-east.

28
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
8
UV index (Very High)
70
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
12
kph wind from NE

French Guiana weather for Sunday 8th March 2026

Expect isolated thunderstorms in French Guiana with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and no hours of bright sunshine. There are 20-30 mm of rainfall expected with 77% chance of some rain and a light breeze of 10 kph from the north-east.

26
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
0
hours of sunshine
5
UV index (Moderate)
77
% chance of some rain
<30
mm of rainfall expected
L
low heat & humidity
10
kph wind from NE

French Guiana weather for Monday 9th March 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 no hours of bright sunshine. There are 5-10 mm of rainfall expected with 76% chance of some rain and a light breeze of 11 kph from the north-east.