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Stanley, Falkland Islands climate
BWk Cold desert
Stanley has a mildly seasonal cold-temperate climate (Cold desert, Köppen BWk). The hottest month is January with an average daily high near 12°C, while the coldest is July averaging around 2°C at night. Precipitation totals about 1 mm a year and is strongly seasonal — October alone averages 1 mm while January barely receives 0 mm. At latitude 52°S, day length swings from 7.4 hours in midwinter to 16.6 hours at midsummer.
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)Stanley climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 12 | 12 | 11 | 9 | 7 | 5 | 4 | 5 | 6 | 8 | 10 | 11 |
| Avg temp (°C) | 10 | 10 | 9 | 7 | 5 | 4 | 3 | 4 | 5 | 6 | 8 | 9 |
| Avg low (°C) | 8 | 8 | 7 | 6 | 4 | 3 | 2 | 2 | 3 | 4 | 5 | 6 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 12 | 12 | 11 | 9 | 7 | 5 |
| Avg temp (°C) | 10 | 10 | 9 | 7 | 5 | 4 |
| Avg low (°C) | 8 | 8 | 7 | 6 | 4 | 3 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 4 | 5 | 6 | 8 | 10 | 11 |
| Avg temp (°C) | 3 | 4 | 5 | 6 | 8 | 9 |
| Avg low (°C) | 2 | 2 | 3 | 4 | 5 | 6 |
| Precipitation (mm) | 0 | 0 | 0 | 1 | 0 | 0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 74 | 75 | 79 | 78 | 81 | 82 | 81 | 79 | 76 | 74 | 74 |
| Relative humidity (%) | 83 | 83 | 84 | 85 | 85 | 85 | 84 | 85 | 84 | 84 | 83 | 82 |
| Wind speed (km/h) | 24.4 | 24.8 | 25.2 | 26.4 | 26.4 | 27.2 | 27.4 | 27.6 | 26.5 | 26.0 | 24.9 | 24.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 75 | 74 | 75 | 79 | 78 | 81 |
| Relative humidity (%) | 83 | 83 | 84 | 85 | 85 | 85 |
| Wind speed (km/h) | 24.4 | 24.8 | 25.2 | 26.4 | 26.4 | 27.2 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 82 | 81 | 79 | 76 | 74 | 74 |
| Relative humidity (%) | 84 | 85 | 84 | 84 | 83 | 82 |
| Wind speed (km/h) | 27.4 | 27.6 | 26.5 | 26.0 | 24.9 | 24.3 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 18 years of daily observations at Sea Lion Island, a weather station, about 117 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.