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Tasiilaq, Greenland climate
ET Tundra
Tasiilaq has a mildly seasonal subarctic climate (Tundra, Köppen ET). The hottest month is July with an average daily high near 52°F, while the coldest is January averaging around 16°F at night. Around 36 inches of precipitation falls each year, peaking in March (4.0 inches) and easing off in July (1.7 inches). At latitude 66°N, day length swings from 2.4 hours in midwinter to 21.6 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)Tasiilaq climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 26 | 27 | 28 | 35 | 40 | 48 | 52 | 51 | 45 | 37 | 32 | 28 |
| Avg temp (°F) | 21 | 21 | 22 | 28 | 35 | 41 | 46 | 45 | 40 | 33 | 27 | 23 |
| Avg low (°F) | 16 | 16 | 16 | 22 | 29 | 35 | 39 | 40 | 36 | 28 | 23 | 18 |
| Precipitation (in) | 3.9 | 3.9 | 4.0 | 2.9 | 2.3 | 1.8 | 1.7 | 2.8 | 3.3 | 2.7 | 3.4 | 3.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 26 | 27 | 28 | 35 | 40 | 48 |
| Avg temp (°F) | 21 | 21 | 22 | 28 | 35 | 41 |
| Avg low (°F) | 16 | 16 | 16 | 22 | 29 | 35 |
| Precipitation (in) | 3.9 | 3.9 | 4.0 | 2.9 | 2.3 | 1.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 52 | 51 | 45 | 37 | 32 | 28 |
| Avg temp (°F) | 46 | 45 | 40 | 33 | 27 | 23 |
| Avg low (°F) | 39 | 40 | 36 | 28 | 23 | 18 |
| Precipitation (in) | 1.7 | 2.8 | 3.3 | 2.7 | 3.4 | 3.6 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 83 | 84 | 81 | 77 | 73 | 71 | 70 | 71 | 75 | 75 | 78 | 79 |
| Relative humidity (%) | 79 | 79 | 79 | 79 | 82 | 84 | 84 | 84 | 80 | 75 | 76 | 78 |
| Wind speed (mph) | 14.6 | 14.7 | 12.2 | 10.4 | 7.7 | 5.4 | 4.6 | 5.3 | 8.6 | 10.5 | 13.4 | 13.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 83 | 84 | 81 | 77 | 73 | 71 |
| Relative humidity (%) | 79 | 79 | 79 | 79 | 82 | 84 |
| Wind speed (mph) | 14.6 | 14.7 | 12.2 | 10.4 | 7.7 | 5.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 70 | 71 | 75 | 75 | 78 | 79 |
| Relative humidity (%) | 84 | 84 | 80 | 75 | 76 | 78 |
| Wind speed (mph) | 4.6 | 5.3 | 8.6 | 10.5 | 13.4 | 13.8 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Tasiilaq, 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.