Cayenne weather live forecast

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

Wednesday
17th Dec
28

26

3

5
Thursday
18th Dec
28

25

3

10
Friday
19th Dec
27

25

1

7
Saturday
20th Dec
26

25

3

6
Sunday
21st Dec
27

25

5

11

5-day weather forecast updated at 04:00 on Wednesday 17th December 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.

Cayenne weather forecast by day

Below are the detailed weather forecasts for Cayenne for the next 5 days.

Cayenne weather for Wednesday 17th December 2025

Expect isolated thunderstorms in Cayenne, French Guiana with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 3 hours of bright sunshine. There are 40-50 mm of rainfall expected with 64% 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
3
hours of sunshine
5
UV index (Moderate)
64
% chance of some rain
<50
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from NE

Cayenne weather for Thursday 18th December 2025

Expect isolated thunderstorms in Cayenne, French Guiana with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 3 hours of bright sunshine. There are 30-40 mm of rainfall expected with 72% chance of some rain and a light breeze of 12 kph from the north-east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
10
UV index (Very High)
72
% chance of some rain
<40
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from NE

Cayenne weather for Friday 19th December 2025

Expect isolated thunderstorms in Cayenne, French Guiana with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 30-40 mm of rainfall expected with 87% chance of some rain and a light breeze of 10 kph from the north-east.

27
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
7
UV index (High)
87
% chance of some rain
<40
mm of rainfall expected
L
low heat & humidity
10
kph wind from NE

Cayenne weather for Saturday 20th December 2025

Expect isolated thunderstorms in Cayenne, French Guiana with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 20-30 mm of rainfall expected with 89% chance of some rain and a light breeze of 9 kph from the east.

26
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
6
UV index (High)
89
% chance of some rain
<30
mm of rainfall expected
L
low heat & humidity
9
kph wind from E

Cayenne weather for Sunday 21st December 2025

Expect isolated thunderstorms in Cayenne, French Guiana with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 81% chance of some rain and a light breeze of 10 kph from the north-east.