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Port-aux-Français, French Southern Territories climate
ET Tundra
Port-aux-Français has a mildly seasonal cold-temperate climate (Tundra, Köppen ET). The hottest month is February with an average daily high near 54°F, while the coldest is July averaging around 31°F at night. Precipitation is fairly even year-round, totalling about 26 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Port-aux-Français climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 53 | 54 | 52 | 49 | 44 | 42 | 41 | 41 | 42 | 45 | 48 | 51 |
| Avg temp (°F) | 47 | 47 | 46 | 43 | 39 | 37 | 36 | 36 | 37 | 39 | 41 | 45 |
| Avg low (°F) | 40 | 40 | 39 | 37 | 34 | 32 | 31 | 31 | 31 | 33 | 35 | 38 |
| Precipitation (in) | 2.0 | 1.6 | 2.1 | 2.6 | 2.5 | 2.8 | 2.6 | 2.3 | 2.1 | 1.8 | 1.9 | 2.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 53 | 54 | 52 | 49 | 44 | 42 |
| Avg temp (°F) | 47 | 47 | 46 | 43 | 39 | 37 |
| Avg low (°F) | 40 | 40 | 39 | 37 | 34 | 32 |
| Precipitation (in) | 2.0 | 1.6 | 2.1 | 2.6 | 2.5 | 2.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 41 | 41 | 42 | 45 | 48 | 51 |
| Avg temp (°F) | 36 | 36 | 37 | 39 | 41 | 45 |
| Avg low (°F) | 31 | 31 | 31 | 33 | 35 | 38 |
| Precipitation (in) | 2.6 | 2.3 | 2.1 | 1.8 | 1.9 | 2.0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 79 | 77 | 77 | 76 | 78 | 79 | 79 | 79 | 82 | 82 | 81 |
| Relative humidity (%) | 81 | 82 | 83 | 86 | 87 | 88 | 87 | 85 | 83 | 82 | 81 | 81 |
| Wind speed (mph) | 20.8 | 20.0 | 20.0 | 19.5 | 19.5 | 18.7 | 19.5 | 20.6 | 21.7 | 21.8 | 21.0 | 20.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 81 | 79 | 77 | 77 | 76 | 78 |
| Relative humidity (%) | 81 | 82 | 83 | 86 | 87 | 88 |
| Wind speed (mph) | 20.8 | 20.0 | 20.0 | 19.5 | 19.5 | 18.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 79 | 79 | 82 | 82 | 81 |
| Relative humidity (%) | 87 | 85 | 83 | 82 | 81 | 81 |
| Wind speed (mph) | 19.5 | 20.6 | 21.7 | 21.8 | 21.0 | 20.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Port-aux-francais (iles Kerguelen), a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.