Willemstad
Curacao
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 37 | 36 | 35 | 32 | 31 | 35 | 32 | 33 | 35 | 37 | 38 | 37 | 38 |
| Average high, °C | 31 | 31 | 30 | 29 | 28 | 29 | 30 | 30 | 31 | 31 | 31 | 31 | 30 |
| Average temperature, °C | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 28 | 27 |
| Average low, °C | 26 | 26 | 26 | 25 | 24 | 24 | 25 | 25 | 26 | 26 | 26 | 26 | 25 |
| Record low, °C | 22 | 22 | 20 | 20 | 21 | 20 | 21 | 22 | 22 | 20 | 20 | 20 | 20 |
| Rain, days | 16 | 17 | 16 | 15 | 15 | 11 | 11 | 11 | 14 | 14 | 16 | 16 | 172 |
| Thunderstorms, days | 4 | 6 | 3 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 3 | 21 |
| Average precipitation, mm. | 43 | 80 | 99 | 94 | 52 | 27 | 14 | 19 | 21 | 20 | 35 | 42 | 546 |
| Relative humidity, % | 80 | 80 | 85 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 |
| Relative humidity morning, % | 84 | 85 | 85 | 84 | 83 | 83 | 83 | 84 | 84 | 84 | 85 | 84 | 84 |
| Relative humidity evening, % | 73 | 75 | 77 | 75 | 74 | 73 | 72 | 73 | 73 | 72 | 72 | 72 | 73 |
| Wind speed, km/h | 25 | 22 | 20 | 22 | 25 | 27 | 27 | 27 | 27 | 28 | 27 | 25 | 25 |
| Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 |
| Dew point, °C | 24 | 24 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 274 |
| Growing degree-day, °C | 533 | 551 | 500 | 482 | 482 | 439 | 482 | 500 | 517 | 533 | 551 | 551 | 6123 |
| Solar radiation, global, Mj/m2 | 24 | 22 | 20 | 19 | 20 | 23 | 25 | 25 | 25 | 25 | 25 | 26 | 23 |