Vieux Fort
Saint Lucia
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 32 | 32 | 31 | 31 | 30 | 30 | 32 | 32 | 32 | 31 | 31 | 32 | 32 |
| Average high, °C | 30 | 30 | 29 | 28 | 27 | 27 | 28 | 28 | 30 | 30 | 30 | 30 | 29 |
| Average temperature, °C | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 28 | 28 | 28 | 27 |
| Average low, °C | 26 | 26 | 25 | 25 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 26 | 25 |
| Record low, °C | 22 | 22 | 20 | 18 | 18 | 18 | 20 | 20 | 21 | 22 | 22 | 22 | 18 |
| Rain, days | 19 | 19 | 20 | 18 | 18 | 16 | 16 | 13 | 16 | 19 | 20 | 20 | 214 |
| Fog, days | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 10 |
| Thunderstorms, days | 4 | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 3 | 3 | 17 |
| Average precipitation, mm. | 258 | 311 | 292 | 171 | 132 | 100 | 97 | 113 | 143 | 197 | 275 | 257 | 2346 |
| Relative humidity, % | 80 | 80 | 80 | 80 | 75 | 75 | 75 | 75 | 75 | 80 | 80 | 80 | 78 |
| Relative humidity morning, % | 85 | 84 | 85 | 81 | 81 | 80 | 79 | 80 | 82 | 82 | 84 | 84 | 82 |
| Relative humidity evening, % | 77 | 77 | 78 | 75 | 73 | 73 | 72 | 73 | 75 | 76 | 77 | 76 | 75 |
| Wind speed, km/h | 20 | 19 | 20 | 22 | 25 | 25 | 22 | 22 | 22 | 27 | 25 | 22 | 23 |
| Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 |
| Dew point, °C | 23 | 23 | 23 | 22 | 21 | 21 | 21 | 22 | 23 | 23 | 23 | 23 | 268 |
| Growing degree-day, °C | 542 | 560 | 525 | 517 | 499 | 455 | 517 | 517 | 568 | 550 | 568 | 568 | 6386 |
| Solar radiation, global, Mj/m2 | 22 | 21 | 18 | 18 | 19 | 22 | 24 | 25 | 24 | 23 | 24 | 24 | 22 |