Monthly climate metrics across temperature, precipitation, wind, and UV.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | |||||||||||||
| Daily high°C | 27 | 28 | 28 | 28 | 28 | 29 | 29 | 30 | 31 | 31 | 29 | 28 | 29 |
| Daily mean°C | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 29 | 29 | 27 | 27 | 27 |
| Daily low°C | 25 | 25 | 26 | 25 | 26 | 25 | 25 | 26 | 26 | 27 | 26 | 26 | 26 |
| Thermal comfort | |||||||||||||
| High feelsDaily high feels-like°C | 33 | 32 | 33 | 34 | 34 | 36 | 36 | 36 | 37 | 37 | 36 | 34 | 35 |
| Mean feelsDaily mean feels-like°C | 28 | 27 | 29 | 29 | 30 | 31 | 31 | 32 | 33 | 33 | 31 | 30 | 30 |
| Low feelsDaily low feels-like°C | 23 | 24 | 24 | 24 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 |
| Humidity | |||||||||||||
| HumidityRelative humidity% | 84 | 82 | 79 | 85 | 86 | 84 | 82 | 75 | 72 | 75 | 83 | 84 | 81 |
| Dewpoint°C | 23.4 | 23.3 | 23.4 | 23.8 | 24.3 | 24.0 | 24.0 | 23.7 | 23.7 | 23.9 | 24.2 | 24.0 | 23.8 |
| Precipitation | |||||||||||||
| Rainfallmm | 341 | 163 | 260 | 347 | 557 | 293 | 279 | 66 | 27 | 68 | 195 | 406 | 3001 |
| Rain days≥1mm | 28 | 24 | 29 | 28 | 30 | 30 | 28 | 14 | 9 | 16 | 27 | 30 | 293 |
| Wind | |||||||||||||
| Wind avgm/s | 5.3 | 5.4 | 5.2 | 4.6 | 4.4 | 3.3 | 3.2 | 3.8 | 4.6 | 4.2 | 4.0 | 4.6 | 4.4 |
| Wind gustsm/s | 6.8 | 6.9 | 6.9 | 6.7 | 6.1 | 5.2 | 5.0 | 5.6 | 5.8 | 6.0 | 5.8 | 6.3 | 6.1 |
| Sun & UV | |||||||||||||
| Sunshinehrs/day | 8.6 | 8.0 | 8.8 | 8.6 | 8.0 | 8.6 | 8.8 | 9.7 | 9.8 | 9.7 | 8.9 | 9.0 | 8.9 |
| Clear skyindex | 27% | 22% | 35% | 21% | 25% | 36% | 38% | 54% | 63% | 52% | 31% | 31% | 36% |
| UV indexmax avg | 7.5 | 6.9 | 9.1 | 8.0 | 7.3 | 7.6 | 8.3 | 10.0 | 10.7 | 9.9 | 8.8 | 6.3 | 8.4 |
Compared across French Guiana
Cayenne: 24.6 °C. Typical range in French Guiana: 24.1–24.6 °C. Low anchor: Kourou, 24.1 °C. High anchor: Matoury, 24.6 °C.
4 cities tracked