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Arendal, Norway climate
Cfb Oceanic / temperate
Arendal has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 67°F, while the coldest is February averaging around 31°F at night. Around 37 inches of precipitation falls each year, peaking in November (4.5 inches) and easing off in April (2.0 inches). At latitude 58°N, day length swings from 6.1 hours in midwinter to 17.9 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)Arendal climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 38 | 41 | 47 | 56 | 63 | 67 | 66 | 61 | 52 | 45 | 40 |
| Avg temp (°F) | 35 | 34 | 37 | 43 | 51 | 58 | 62 | 62 | 57 | 49 | 42 | 37 |
| Avg low (°F) | 31 | 31 | 33 | 39 | 46 | 53 | 58 | 58 | 52 | 45 | 38 | 33 |
| Precipitation (in) | 3.4 | 2.4 | 2.2 | 2.0 | 2.2 | 2.7 | 2.4 | 3.4 | 3.6 | 4.5 | 4.5 | 3.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 38 | 41 | 47 | 56 | 63 |
| Avg temp (°F) | 35 | 34 | 37 | 43 | 51 | 58 |
| Avg low (°F) | 31 | 31 | 33 | 39 | 46 | 53 |
| Precipitation (in) | 3.4 | 2.4 | 2.2 | 2.0 | 2.2 | 2.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 67 | 66 | 61 | 52 | 45 | 40 |
| Avg temp (°F) | 62 | 62 | 57 | 49 | 42 | 37 |
| Avg low (°F) | 58 | 58 | 52 | 45 | 38 | 33 |
| Precipitation (in) | 2.4 | 3.4 | 3.6 | 4.5 | 4.5 | 3.6 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 14 | 12 | 12 | 12 | 12 | 11 | 13 | 13 | 15 | 17 | 17 |
| Days with low ≤ 32°F (days) | 16 | 16 | 12 | 3 | — | — | — | — | — | 0.6 | 5 | 13 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 14 | 12 | 12 | 12 | 12 |
| Days with low ≤ 32°F (days) | 16 | 16 | 12 | 3 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 13 | 13 | 15 | 17 | 17 |
| Days with low ≤ 32°F (days) | — | — | — | 0.6 | 5 | 13 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 77 | 69 | 63 | 59 | 61 | 59 | 63 | 68 | 73 | 77 | 77 |
| Relative humidity (%) | 92 | 92 | 87 | 82 | 79 | 78 | 80 | 83 | 85 | 88 | 91 | 92 |
| Wind speed (mph) | 6.1 | 5.7 | 5.1 | 4.1 | 4.0 | 4.1 | 4.1 | 4.5 | 5.3 | 5.7 | 6.0 | 6.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 77 | 77 | 69 | 63 | 59 | 61 |
| Relative humidity (%) | 92 | 92 | 87 | 82 | 79 | 78 |
| Wind speed (mph) | 6.1 | 5.7 | 5.1 | 4.1 | 4.0 | 4.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 59 | 63 | 68 | 73 | 77 | 77 |
| Relative humidity (%) | 80 | 83 | 85 | 88 | 91 | 92 |
| Wind speed (mph) | 4.1 | 4.5 | 5.3 | 5.7 | 6.0 | 6.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Torungen Fyr, a weather station, about 9 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.