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Weather & Climate in Swanage, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Swanage experiences four distinct seasons with an average annual temperature of 51°F (10°C). Winters average 42°F in January while summers reach 62°F in July. The area gets 277 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 32.5 inches. The city sits at an elevation of 16 feet.
Temperature
42°F Jan (5°C)
62°F Jul (16°C)
| Annual Average | 50.5°F |
| 6% below US avg | |
| January Average | 42°F (5°C) |
| July Average | 62°F (16°C) |
| Sunny Days | 277 days/yr |
Geography
| Elevation | 16 ft (5 m) |
| Area | 1,308.1 sq mi (3,388.0 km²) |
| Population Density | 8/sq mi |
| Coordinates | 50.6083°N, 1.9566°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
35 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.9.
| Jul 14, 2011 | 62 km SSE of Ventnor, United Kingdom | M3.9 | 102 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.7 | 90 km | 7 km |
| Aug 17, 1995 | 28 km S of Salcombe, United Kingdom | M3.6 | 148 km | 10 km |
| Sep 23, 2003 | 41 km WNW of Étretat, France | M3.6 | 143 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.6 | 90 km | 7 km |
| Jan 1, 1994 | Wales-England region, United Kingdom | M3.6 | 127 km | 10 km |
| Oct 10, 2001 | 2 km SSE of Caerphilly, United Kingdom | M3.5 | 136 km | 10 km |
| Jun 20, 2002 | 3 km N of Marshfield, United Kingdom | M3.4 | 132 km | 14 km |
| Jul 30, 1999 | 2 km ENE of Bargoed, United Kingdom | M3.3 | 148 km | 6 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.3 | 90 km | 7 km |
| Sep 23, 1992 | 1 km NNE of Tiverton, United Kingdom | M3.3 | 113 km | 10 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 78 km | 10 km |
| Feb 27, 2019 | 3 km SE of Dorking, United Kingdom | M3.3 | 134 km | 10 km |
| Oct 16, 1997 | 4 km ENE of Torquay, United Kingdom | M3.2 | 108 km | 10 km |
| Jan 28, 2002 | 1 km S of Abercarn, United Kingdom | M3.0 | 141 km | 10 km |
| May 19, 2019 | 7 km ESE of Swanage, United Kingdom | M3.0 | 8 km | 10 km |
| Nov 26, 1991 | 50 km N of Urville-Nacqueville, France | M3.0 | 56 km | 10 km |
| Sep 5, 1999 | 15 km WSW of Salcombe, United Kingdom | M2.9 | 150 km | 5 km |
| Mar 18, 2001 | 8 km W of Marlborough, United Kingdom | M2.9 | 92 km | 10 km |
| Aug 17, 1992 | 1 km E of Machen, United Kingdom | M2.9 | 137 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: 0.4 m (1 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2011 | PLYMOUTH, ENGLAND | Avalanche | 0.4 m | - | 75 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 3.7 in | |
| February | 41°F (5°C) | 2.7 in | Coldest |
| March | 44°F (7°C) | 2.6 in | |
| April | 47°F (8°C) | 2.0 in | |
| May | 53°F (11°C) | 1.9 in | |
| June | 58°F (14°C) | 2.1 in | |
| July | 62°F (16°C) | 1.6 in | Warmest, Driest |
| August | 62°F (16°C) | 2.1 in | |
| September | 58°F (14°C) | 2.8 in | |
| October | 52°F (11°C) | 3.5 in | |
| November | 46°F (8°C) | 3.7 in | |
| December | 43°F (6°C) | 4.0 in | Wettest |
Swanage has a seasonal temperature swing of 20°F / from 41°F in February to 62°F in July. Total annual precipitation is 32.5 inches, with December being the wettest month (4.0") and July the driest (1.6").