Climate of Antarctica
World Climates covers 3 places in Antarctica. By annual mean temperature, the warmest is Port-aux-Français (4 °C39 °F) and the coolest is Casey Station (Australian Antarctic Territory) (−14 °C7 °F). The wettest is Grytviken with 1,093 mm43 in of precipitation per year, the driest Casey Station (Australian Antarctic Territory) with 364 mm14 in.
The most common climate types (Köppen classification computed from these averages) are tundra (ET, 2 places) and ice cap (EF, 1 place).
The highest monthly average high is in Port-aux-Français (9 °C48 °F in February); the lowest monthly average low is in Casey Station (Australian Antarctic Territory) (−23 °C−9 °F in August).
Countries and territories in Antarctica
Frequently asked questions
Which is the warmest place in Antarctica?
By annual mean temperature, the warmest place in Antarctica is Port-aux-Français at 4 °C39 °F. The coolest is Casey Station (Australian Antarctic Territory) at −14 °C7 °F.
Where does it rain the most in Antarctica?
Grytviken gets the most precipitation, 1,093 mm43 in in an average year. The driest place is Casey Station (Australian Antarctic Territory) with 364 mm14 in.
How many places in Antarctica does this site cover?
World Climates has climate data for 3 places in Antarctica. Each one has a page with monthly averages for temperature, rainfall, humidity and daylight.
Climate of every place in Antarctica
| Place | Year | Max high | Min low | Precip. |
|---|---|---|---|---|
| Port-aux-Français | 4 | 9 | 0 | 698 |
| Grytviken | 1 | 5 | −3 | 1,093 |
| Casey Station (Australian Antarctic Territory) | −14 | −1 | −23 | 364 |
Year = annual mean temperature; max high = average high of the warmest month; min low = average low of the coldest month; precip. = annual total. Temperatures in °C°F, precipitation in mminches. Sorted by population.
Data: NASA POWER climatology 2001–2025 (MERRA-2 reanalysis, CERES satellite data) — grid-cell averages, not station records. Sources and method.