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French Guiana weather live forecast
Today's maximum temperature in French Guiana is expected to be 30°C. Select a day from the live weather forecast for French Guiana (Cayenne) for more weather parameters.
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Wednesday
22nd Oct -
Thursday
23rd Oct -
Friday
24th Oct -
Saturday
25th Oct -
Sunday
26th Oct
5-day weather forecast updated at 04:00 on Wednesday 22nd October 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 Wednesday 22nd October 2025
Expect isolated thunderstorms in French Guiana with a maximum temperature of 30°C, 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 19% chance of some rain and a gentle breeze of 15 kph from the east.
- °C maximum temperature
- °C minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (Extreme)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
French Guiana weather for Thursday 23rd October 2025
Expect broken clouds in French Guiana with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the east.
- °C maximum temperature
- °C minimum temperature
- broken clouds
- hours of sunshine
- UV index (Extreme)
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
French Guiana weather for Friday 24th October 2025
Expect broken clouds in French Guiana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.
- °C maximum temperature
- °C minimum temperature
- broken clouds
- hours of sunshine
- UV index (Extreme)
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
French Guiana weather for Saturday 25th October 2025
Expect isolated thunderstorms in French Guiana with a maximum temperature of 30°C, 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 39% chance of some rain and a gentle breeze of 13 kph from the east.
- °C maximum temperature
- °C minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (Extreme)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
French Guiana weather for Sunday 26th October 2025
Expect broken clouds in French Guiana with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the east.
- °C maximum temperature
- °C minimum temperature
- broken clouds
- hours of sunshine
- UV index (Very High)
- mm of rainfall expected
- moderate heat & humidity
- kph wind from E
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Metric (°C / mm) | Imperial (°F / inches)
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