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Weather & Climate in Risør, Norway
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Risør has a cool climate with an average annual temperature of 45°F (7°C). Winters average 29°F in January while summers reach 63°F in July. The area gets 259 sunny days per year, above the national average. Annual precipitation totals 42.5 inches. The area receives 12.7 inches of snow annually. The city sits at an elevation of 30 feet.
Temperature
29°F Jan (-2°C)
63°F Jul (17°C)
| Annual Average | 44.8°F |
| 17% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 259 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 1.1 sq mi (2.9 km²) |
| Population Density | 4,079/sq mi |
| Coordinates | 58.7206°N, 9.2342°W |
| Timezone | Europe/Oslo |
Precipitation & Snow
Air Quality
Earthquake History
18 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 | 114 km | 10 km |
| Nov 29, 2000 | 9 km E of Strömstad, Sweden | M3.4 | 124 km | 10 km |
| May 10, 1994 | 24 km SW of Ellös, Sweden | M3.2 | 134 km | 35 km |
| Jun 29, 2004 | 17 km E of Hovden, Norway | M3.1 | 129 km | 8 km |
| Sep 28, 1993 | 44 km WSW of Grebbestad, Sweden | M2.9 | 76 km | 10 km |
| Apr 22, 1993 | 13 km W of Skärhamn, Sweden | M2.8 | 148 km | 10 km |
| Sep 8, 1993 | 34 km SSE of Skålevik, Norway | M2.7 | 121 km | 10 km |
| Apr 26, 2005 | 24 km N of Hirtshals, Denmark | M2.7 | 109 km | 10 km |
| Aug 15, 1991 | 7 km ESE of Stavern, Norway | M2.7 | 61 km | 10 km |
| Mar 17, 1991 | 7 km W of Mandal, Norway | M2.6 | 136 km | 10 km |
| Jun 8, 2005 | 3 km WNW of Skagen, Denmark | M2.6 | 134 km | 10 km |
| Aug 29, 1991 | 43 km W of Smögen, Sweden | M2.6 | 81 km | 10 km |
| Feb 1, 1991 | 5 km SSE of Melsomvik, Norway | M2.6 | 82 km | 10 km |
| Jan 29, 2005 | 7 km NNE of Hvittingfoss, Norway | M2.6 | 103 km | 15 km |
| Aug 1, 1993 | 7 km S of Mandal, Norway | M2.6 | 133 km | 10 km |
| May 23, 1990 | 50 km WNW of Smögen, Sweden | M2.5 | 73 km | 10 km |
| Apr 25, 2008 | 9 km NNW of Strandby, Denmark | M2.5 | 146 km | 0 km |
| Mar 22, 1993 | 15 km NNW of Liknes, Norway | M2.5 | 140 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 | - | 126 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 3.7 in | Coldest |
| February | 30°F (-1°C) | 2.4 in | |
| March | 35°F (2°C) | 3.2 in | |
| April | 42°F (6°C) | 2.2 in | Driest |
| May | 52°F (11°C) | 2.5 in | |
| June | 59°F (15°C) | 2.7 in | |
| July | 63°F (17°C) | 3.2 in | Warmest |
| August | 61°F (16°C) | 4.1 in | |
| September | 54°F (12°C) | 4.8 in | |
| October | 46°F (8°C) | 5.4 in | Wettest |
| November | 37°F (3°C) | 5.0 in | |
| December | 31°F (-1°C) | 3.4 in |
Risør has a seasonal temperature swing of 34°F / from 29°F in January to 63°F in July. Total annual precipitation is 42.5 inches, with October being the wettest month (5.4") and April the driest (2.2").