Cayenne weather live forecast

Today's maximum temperature in Cayenne is expected to be 88°F. Select a day from the live weather forecast for Cayenne, French Guiana for more weather parameters.

Sunday
17th Aug
88

79

7

11
Monday
18th Aug
86

79

7

8
Tuesday
19th Aug
86

79

6

8
Wednesday
20th Aug
88

79

7

11
Thursday
21st Aug
88

79

6

11

5-day weather forecast updated at 04:00 on Sunday 17th August 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 Sunday 17th August 2025

Expect isolated thunderstorms in Cayenne, French Guiana with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 12% chance of some rain and a gentle breeze of 9 mph from the east.

88
°F maximum temperature
79
°F minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
12
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
9
mph wind from E

Cayenne weather for Monday 18th August 2025

Expect broken clouds in Cayenne, French Guiana with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the east.

86
°F maximum temperature
79
°F minimum temperature
broken clouds
7
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
7
mph wind from E

Cayenne weather for Tuesday 19th August 2025

Expect broken clouds in Cayenne, French Guiana with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the east.

86
°F maximum temperature
79
°F minimum temperature
broken clouds
6
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
6
mph wind from E

Cayenne weather for Wednesday 20th August 2025

Expect isolated thunderstorms in Cayenne, French Guiana with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 70% chance of some rain and a light breeze of 6 mph from the south-east.

88
°F maximum temperature
79
°F minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
70
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
6
mph wind from SE

Cayenne weather for Thursday 21st August 2025

Expect isolated thunderstorms in Cayenne, French Guiana with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 58% chance of some rain and a gentle breeze of 9 mph from the south-east.