Capital city, French Guiana
Cayenne weather by month and the best time to visit
When to go to Cayenne
Aug–Nov is the long dry season; a short break comes around Feb–Mar. Heavy rains Dec–Jul. Carnival (Jan–Feb) is the biggest event and fills hotels.
Cayenne weather by month
Average daily high, rainfall and conditions.
- Jan27°300 mm
- Feb27°264 mm
- Mar28°250 mm
- Apr28°369 mm
- May28°504 mm
- Jun28°334 mm
- Jul28°217 mm
- Aug28°109 mm
- Sep29°54 mm
- Oct30°58 mm
- Nov29°110 mm
- Dec28°303 mm
Monthly averages
| Month | High | Low | Rain | Humidity | Conditions |
|---|---|---|---|---|---|
| January | 27°C81°F | 24°C76°F | 300 mm | 85% | Very wet |
| February | 27°C81°F | 24°C76°F | 264 mm | 84% | Rainy |
| March | 28°C82°F | 24°C76°F | 250 mm | 83% | Rainy |
| April | 28°C82°F | 25°C76°F | 369 mm | 86% | Very wet |
| May | 28°C82°F | 25°C77°F | 504 mm | 89% | Very wet |
| June | 28°C82°F | 25°C76°F | 334 mm | 89% | Very wet |
| July | 28°C82°F | 24°C76°F | 217 mm | 87% | Rainy |
| August | 28°C83°F | 24°C76°F | 109 mm | 86% | Pleasant |
| September | 29°C84°F | 25°C76°F | 54 mm | 83% | Pleasant |
| October | 30°C85°F | 25°C77°F | 58 mm | 80% | Pleasant |
| November | 29°C85°F | 25°C77°F | 110 mm | 82% | Pleasant |
| December | 28°C83°F | 25°C76°F | 303 mm | 85% | Very wet |
Quick answers
What is the best month to visit Cayenne?
Aug–Nov. Aug–Nov is the long dry season; a short break comes around Feb–Mar. Heavy rains Dec–Jul. Carnival (Jan–Feb) is the biggest event and fills hotels.
When is the rainy season in Cayenne?
Rain peaks in May with about 504 mm. Months with 150 mm or more: Dec–Jul.
What is the hottest month in Cayenne?
October, with average highs of 30°C (85°F).
How cold does Cayenne get?
The coolest nights are in January, averaging 24°C (76°F).
More about Cayenne
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Sources
Climate averages are modelled from NASA POWER (MERRA-2) for 2001–2020 at about 50 km resolution, so coasts and valleys can differ a little. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.