Cayenne weather

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The weather guide for Cayenne, French Guiana shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Cayenne?

The hottest time of year in Cayenne is normally October. Expect maximum daytime temperatures to reach 90°F with very high heat and humidity.

Which month has the most rain in Cayenne?

In terms of rainfall, May is usually the wettest month in Cayenne with 21.4 inches on average. There are normally 26 days in May with some rain.

When is it sunniest in Cayenne?

The sunniest time of year in Cayenne is normally October with bright sunshine on average for 70% of daylight hours; that's 8 hours of sunshine per day.

When is the sea warmest in Cayenne?

The sea is usually at its warmest in Cayenne in August when the water temperature reaches 82°F.

Metric (°C)  |  Imperial (°F)

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Compare Cayenne weather with the USA

Below the Cayenne weather chart shows average maximum daytime temperature for Cayenne, French Guiana and the USA (Washington).

Maximum daytime temperature (°F)

Cayenne, French Guiana
USA (Washington)

Metric (°C)  |  Imperial (°F)

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