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Weather & Climate in Skien, Norway
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Skien has a cool climate with an average annual temperature of 44°F (7°C). Winters average 28°F in January while summers reach 63°F in July. The area gets 269 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 37.1 inches. The area receives 14.2 inches of snow annually. The city sits at an elevation of 89 feet.
Temperature
28°F Jan (-2°C)
63°F Jul (17°C)
| Annual Average | 44.2°F |
| 18% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 269 days/yr |
Geography
| Elevation | 89 ft (27 m) |
| Area | 10.3 sq mi (26.7 km²) |
| Population Density | 4,912/sq mi |
| Coordinates | 59.2096°N, 9.6090°W |
| Timezone | Europe/Oslo |
Precipitation & Snow
Air Quality
Earthquake History
15 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Feb 19, 1992 | 5 km SE of Fredrikstad, Norway | M3.8 | 80 km | 10 km |
| Nov 19, 1994 | 0 km WNW of Jessheim, Norway | M3.5 | 136 km | 10 km |
| Nov 29, 2000 | 9 km E of Strömstad, Sweden | M3.4 | 103 km | 10 km |
| Jun 29, 2004 | 17 km E of Hovden, Norway | M3.1 | 116 km | 8 km |
| Sep 28, 1993 | 44 km WSW of Grebbestad, Sweden | M2.9 | 87 km | 10 km |
| May 25, 2008 | 4 km WSW of Åneby, Norway | M2.9 | 118 km | 15 km |
| Aug 1, 1994 | 30 km N of Noresund, Norway | M2.7 | 138 km | 5 km |
| Aug 15, 1991 | 7 km ESE of Stavern, Norway | M2.7 | 40 km | 10 km |
| Nov 19, 1994 | 7 km NW of Jessheim, Norway | M2.7 | 136 km | 10 km |
| Nov 21, 1994 | 6 km NNW of Jessheim, Norway | M2.7 | 139 km | 10 km |
| Jan 29, 2005 | 7 km NNE of Hvittingfoss, Norway | M2.6 | 45 km | 15 km |
| Feb 1, 1991 | 5 km SSE of Melsomvik, Norway | M2.6 | 43 km | 10 km |
| Aug 29, 1991 | 43 km W of Smögen, Sweden | M2.6 | 103 km | 10 km |
| Dec 12, 1994 | 8 km S of Rotnes, Norway | M2.6 | 111 km | 5 km |
| May 23, 1990 | 50 km WNW of Smögen, Sweden | M2.5 | 88 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1966 | EASTERN NORWAY | Meteorological | 6.0 m | - | 72 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 2.8 in | Coldest |
| February | 29°F (-2°C) | 1.9 in | Driest |
| March | 34°F (1°C) | 2.6 in | |
| April | 42°F (6°C) | 2.0 in | |
| May | 53°F (12°C) | 2.4 in | |
| June | 60°F (15°C) | 2.9 in | |
| July | 63°F (17°C) | 3.2 in | Warmest |
| August | 61°F (16°C) | 3.6 in | |
| September | 53°F (12°C) | 4.2 in | |
| October | 44°F (7°C) | 4.7 in | Wettest |
| November | 35°F (2°C) | 4.3 in | |
| December | 28°F (-2°C) | 2.7 in |
Skien has a seasonal temperature swing of 36°F / from 28°F in January to 63°F in July. Total annual precipitation is 37.1 inches, with October being the wettest month (4.7") and February the driest (1.9").