France
Cayenne sees feels-like daytime highs peak around 39.6°C in August and nighttime lows bottom out near 29.5°C in October. May is the wettest month (~437 mm), while September is the driest (~35 mm). For sunshine, August leads with about 55% clear skies.
Based on mild feels-like temperatures and low rain chances, the most comfortable months are October, September, and November — expect around 29.5–39°C with roughly 27% chance of rain on a given day in October.
| Month | Low / High °C | Rain % | Rainfall | Clear skies | Wind |
|---|---|---|---|---|---|
| January | 30.3° / 36.3° | 73% | 291 mm | 30% | 13.5 kph |
| February | 30.1° / 36.1° | 60% | 244 mm | 31% | 14 kph |
| March | 30.1° / 36° | 62% | 248 mm | 29% | 13.9 kph |
| April | 30.3° / 36.3° | 73% | 327 mm | 26% | 13 kph |
| May | 30.8° / 36.9° | 90% | 437 mm | 26% | 11.7 kph |
| June | 30.9° / 38.1° | 89% | 322 mm | 38% | 10.2 kph |
| July | 29.9° / 38.3° | 72% | 165 mm | 51% | 9.4 kph |
| August | 29.8° / 39.6° | 44% | 78 mm | 55% | 9.8 kph |
| September☀ | 29.8° / 39.5° | 24% | 35 mm | 49% | 10.2 kph |
| October☀ | 29.5° / 39° | 27% | 43 mm | 39% | 10.6 kph |
| November☀ | 29.5° / 37.7° | 44% | 101 mm | 32% | 11.1 kph |
| December | 30.4° / 36.6° | 69% | 230 mm | 31% | 12.3 kph |
Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).
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