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Weather & Climate in Strömstad, Sweden
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Strömstad has a cool climate with an average annual temperature of 45°F (7°C). Winters average 30°F in January while summers reach 62°F in July. The area gets 281 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 30.5 inches. The area receives 9.1 inches of snow annually. The city sits at an elevation of 16 feet.
Temperature
30°F Jan (-1°C)
62°F Jul (17°C)
| Annual Average | 44.8°F |
| 17% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 281 days/yr |
Geography
| Elevation | 16 ft (5 m) |
| Area | 196.1 sq mi (508.0 km²) |
| Population Density | 4,077/sq mi |
| Coordinates | 58.9395°N, 11.1712°W |
| Timezone | Europe/Stockholm |
Precipitation & Snow
Air Quality
Earthquake History
20 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 | 29 km | 10 km |
| Nov 19, 1994 | 0 km WNW of Jessheim, Norway | M3.5 | 134 km | 10 km |
| Nov 12, 1993 | 2 km SE of Åmotfors, Sweden | M3.4 | 114 km | 10 km |
| Jul 29, 2015 | 4 km NE of Nolvik, Sweden | M3.4 | 134 km | 13 km |
| Nov 29, 2000 | 9 km E of Strömstad, Sweden | M3.4 | 10 km | 10 km |
| May 10, 1994 | 24 km SW of Ellös, Sweden | M3.2 | 99 km | 35 km |
| Sep 28, 1993 | 44 km WSW of Grebbestad, Sweden | M2.9 | 54 km | 10 km |
| May 25, 2008 | 4 km WSW of Åneby, Norway | M2.9 | 129 km | 15 km |
| Jun 23, 2018 | 2 km SW of Götene, Sweden | M2.8 | 141 km | 10 km |
| Apr 22, 1993 | 13 km W of Skärhamn, Sweden | M2.8 | 107 km | 10 km |
| Nov 19, 1994 | 7 km NW of Jessheim, Norway | M2.7 | 138 km | 10 km |
| Nov 21, 1994 | 6 km NNW of Jessheim, Norway | M2.7 | 140 km | 10 km |
| Aug 15, 1991 | 7 km ESE of Stavern, Norway | M2.7 | 59 km | 10 km |
| Apr 26, 2005 | 24 km N of Hirtshals, Denmark | M2.7 | 145 km | 10 km |
| Dec 12, 1994 | 8 km S of Rotnes, Norway | M2.6 | 117 km | 5 km |
| Jun 8, 2005 | 3 km WNW of Skagen, Denmark | M2.6 | 140 km | 10 km |
| Aug 29, 1991 | 43 km W of Smögen, Sweden | M2.6 | 71 km | 10 km |
| Feb 1, 1991 | 5 km SSE of Melsomvik, Norway | M2.6 | 53 km | 10 km |
| Jan 29, 2005 | 7 km NNE of Hvittingfoss, Norway | M2.6 | 91 km | 15 km |
| May 23, 1990 | 50 km WNW of Smögen, Sweden | M2.5 | 61 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
2 tsunamis 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 | - | 80 km |
| 1969 | NORSALV RIVER | Meteorological | 5.0 m | - | 142 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 2.5 in | |
| February | 29°F (-2°C) | 1.8 in | Coldest, Driest |
| March | 34°F (1°C) | 2.1 in | |
| April | 41°F (5°C) | 1.8 in | |
| May | 52°F (11°C) | 1.9 in | |
| June | 58°F (15°C) | 2.6 in | |
| July | 62°F (17°C) | 2.3 in | Warmest |
| August | 61°F (16°C) | 2.8 in | |
| September | 54°F (12°C) | 3.2 in | |
| October | 46°F (8°C) | 3.5 in | Wettest |
| November | 38°F (4°C) | 3.4 in | |
| December | 33°F (1°C) | 2.7 in |
Strömstad has a seasonal temperature swing of 33°F / from 29°F in February to 62°F in July. Total annual precipitation is 30.5 inches, with October being the wettest month (3.5") and February the driest (1.8").