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Nuuk, Greenland climate
ET Tundra
Nuuk has a seasonal subarctic climate (Tundra, Köppen ET). The hottest month is July with an average daily high near 52°F, while the coldest is February averaging around 13°F at night. Around 50 inches of precipitation falls each year, peaking in November (8.5 inches) and easing off in April (2.4 inches). At latitude 64°N, day length swings from 3.6 hours in midwinter to 20.4 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)Nuuk climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 23 | 22 | 23 | 31 | 39 | 47 | 52 | 50 | 44 | 36 | 30 | 27 |
| Avg temp (°F) | 19 | 17 | 18 | 27 | 35 | 41 | 46 | 45 | 40 | 33 | 26 | 23 |
| Avg low (°F) | 15 | 13 | 14 | 23 | 30 | 36 | 40 | 40 | 36 | 29 | 23 | 19 |
| Precipitation (in) | 4.8 | 3.0 | 3.1 | 2.4 | 2.6 | 3.1 | 3.7 | 4.5 | 5.0 | 4.0 | 8.5 | 5.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 23 | 22 | 23 | 31 | 39 | 47 |
| Avg temp (°F) | 19 | 17 | 18 | 27 | 35 | 41 |
| Avg low (°F) | 15 | 13 | 14 | 23 | 30 | 36 |
| Precipitation (in) | 4.8 | 3.0 | 3.1 | 2.4 | 2.6 | 3.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 52 | 50 | 44 | 36 | 30 | 27 |
| Avg temp (°F) | 46 | 45 | 40 | 33 | 26 | 23 |
| Avg low (°F) | 40 | 40 | 36 | 29 | 23 | 19 |
| Precipitation (in) | 3.7 | 4.5 | 5.0 | 4.0 | 8.5 | 5.5 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 16 | 14 | 16 | 13 | 11 | 10 | 10 | 12 | 15 | 15 | 15 | 17 |
| Days with low ≤ 32°F (days) | 27 | 25 | 27 | 26 | 18 | 6 | 0.4 | 0.2 | 4 | 20 | 25 | 27 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 16 | 14 | 16 | 13 | 11 | 10 |
| Days with low ≤ 32°F (days) | 27 | 25 | 27 | 26 | 18 | 6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 12 | 15 | 15 | 15 | 17 |
| Days with low ≤ 32°F (days) | 0.4 | 0.2 | 4 | 20 | 25 | 27 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 79 | 74 | 69 | 69 | 70 | 64 | 67 | 69 | 66 | 74 | 77 |
| Relative humidity (%) | 84 | 86 | 85 | 83 | 85 | 88 | 89 | 90 | 86 | 82 | 81 | 83 |
| Wind speed (mph) | 11.3 | 10.9 | 10.9 | 9.8 | 8.3 | 7.1 | 6.3 | 7.2 | 8.9 | 9.6 | 10.6 | 10.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 80 | 79 | 74 | 69 | 69 | 70 |
| Relative humidity (%) | 84 | 86 | 85 | 83 | 85 | 88 |
| Wind speed (mph) | 11.3 | 10.9 | 10.9 | 9.8 | 8.3 | 7.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 67 | 69 | 66 | 74 | 77 |
| Relative humidity (%) | 89 | 90 | 86 | 82 | 81 | 83 |
| Wind speed (mph) | 6.3 | 7.2 | 8.9 | 9.6 | 10.6 | 10.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at Nuuk, 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.