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Weather & Climate in West Mersea, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
West Mersea experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 41°F in January while summers reach 63°F in July. The area gets 235 sunny days per year, above the national average. Annual precipitation totals 32.4 inches. The area receives 2.1 inches of snow annually. The city sits at an elevation of 49 feet.
Temperature
41°F Jan (5°C)
63°F Jul (17°C)
| Annual Average | 52.2°F |
| 3% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 235 days/yr |
Geography
| Elevation | 49 ft (15 m) |
| Area | 133.0 sq mi (344.3 km²) |
| Population Density | 53/sq mi |
| Coordinates | 51.7780°N, 0.9187°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
33 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Apr 28, 2007 | 1 km WNW of Lympne, United Kingdom | M4.6 | 77 km | 10 km |
| Feb 15, 1994 | 7 km ESE of Thetford, United Kingdom | M4.4 | 67 km | 10 km |
| Jan 23, 2007 | 57 km ENE of Broadstairs, United Kingdom | M4.1 | 85 km | 10 km |
| Dec 14, 1991 | 3 km SSE of Longfossé, France | M4.0 | 143 km | 10 km |
| Sep 15, 1994 | 38 km NE of Broadstairs, United Kingdom | M3.9 | 62 km | 10 km |
| Jan 27, 1998 | 27 km W of Le Touquet-Paris-Plage, France | M3.8 | 144 km | 2 km |
| May 22, 2015 | 3 km SSE of Ramsgate, United Kingdom | M3.7 | 64 km | 12 km |
| Jan 27, 1992 | 6 km SSE of Longfossé, France | M3.5 | 146 km | 10 km |
| Mar 3, 2009 | 1 km ENE of Hawkinge, United Kingdom | M3.5 | 76 km | 4 km |
| Feb 17, 1992 | 1 km W of Warboys, United Kingdom | M3.4 | 98 km | 10 km |
| Jan 21, 1999 | 4 km ENE of Old Leake, United Kingdom | M3.3 | 150 km | 10 km |
| Feb 27, 2019 | 3 km SE of Dorking, United Kingdom | M3.3 | 105 km | 10 km |
| Feb 13, 1997 | 26 km W of Le Touquet-Paris-Plage, France | M3.2 | 142 km | 5 km |
| May 4, 1990 | 0 km NE of Coquelles, France | M3.1 | 112 km | 10 km |
| Jul 2, 2001 | 3 km NNE of Oostduinkerke, Belgium | M3.1 | 142 km | 5 km |
| Nov 25, 1998 | 26 km N of Grand-Fort-Philippe, France | M3.0 | 101 km | 10 km |
| Nov 5, 1994 | 5 km N of Debenham, United Kingdom | M3.0 | 58 km | 5 km |
| Mar 28, 1996 | 67 km ESE of Aldeburgh, United Kingdom | M3.0 | 108 km | 10 km |
| Sep 6, 1993 | 35 km E of Caister-on-Sea, United Kingdom | M3.0 | 135 km | 10 km |
| Jan 1, 1995 | 2 km ESE of Halesworth, United Kingdom | M2.9 | 75 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 |
| 1858 | NORTH SEA | Unknown | 6.0 m | — | 96 km |
| 1911 | FOLKSTONE, ENGLAND | Meteorological | 0.9 m | — | 79 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 1.8 in | |
| February | 40°F (4°C) | 1.2 in | Coldest, Driest |
| March | 43°F (6°C) | 1.5 in | |
| April | 47°F (8°C) | 1.5 in | |
| May | 53°F (12°C) | 1.5 in | |
| June | 58°F (15°C) | 2.0 in | |
| July | 63°F (17°C) | 1.5 in | Warmest |
| August | 63°F (17°C) | 1.8 in | |
| September | 58°F (15°C) | 1.9 in | |
| October | 52°F (11°C) | 2.2 in | Wettest |
| November | 45°F (7°C) | 2.1 in | |
| December | 41°F (5°C) | 1.9 in |
West Mersea has a seasonal temperature swing of 23°F / from 40°F in February to 63°F in July. Total annual precipitation is 20.8 inches, with October being the wettest month (2.2") and February the driest (1.2").