Port-aux-Francais
French Southern territories
| Season | Autumn | Winter | Spring | Summer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Year |
| Record high, °C | 21 | 22 | 25 | 30 | 30 | 27 | 28 | 27 | 26 | 22 | 23 | 22 | 30 |
| Average high, °C | 5 | 6 | 8 | 9 | 10 | 11 | 10 | 8 | 6 | 5 | 4 | 4 | 7 |
| Average temperature, °C | 2 | 3 | 5 | 7 | 8 | 8 | 7 | 6 | 4 | 3 | 2 | 2 | 5 |
| Average low, °C | 0 | 1 | 2 | 4 | 5 | 6 | 5 | 4 | 2 | 1 | 0 | 0 | 3 |
| Record low, °C | -7 | -3 | -2 | 0 | -1 | 1 | 0 | -1 | -5 | -5 | -7 | -6 | -7 |
| Rain, days | 12 | 13 | 14 | 16 | 16 | 13 | 16 | 16 | 14 | 13 | 13 | 13 | 169 |
| Snow, days | 12 | 11 | 7 | 2 | 1 | 0 | 2 | 4 | 6 | 10 | 11 | 13 | 79 |
| Fog, days | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 10 |
| Relative humidity morning, % | 81 | 79 | 80 | 81 | 81 | 81 | 81 | 82 | 81 | 82 | 82 | 80 | 81 |
| Relative humidity evening, % | 75 | 71 | 67 | 67 | 68 | 70 | 71 | 75 | 79 | 81 | 81 | 77 | 74 |
| Wind speed, km/h | 40 | 40 | 40 | 40 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 40 | 38 |
| Day Length, часов | 12 | 14 | 16 | 17 | 16 | 15 | 13 | 11 | 10 | 9 | 9 | 11 | 13 |
| Dew point, °C | -1 | 0 | 0 | 2 | 3 | 3 | 3 | 2 | 1 | 0 | 0 | -1 | 12 |
| Solar radiation, global, Mj/m2 | 11 | 16 | 21 | 22 | 22 | 18 | 13 | 8 | 5 | 3 | 4 | 7 | 13 |