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. 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) |
Geography
| Elevation | 49 ft (15 m) |
| Area | 133.0 sq mi (344.3 km²) |
| Population Density | 54/sq mi |
| Coordinates | 51.7780°N, 0.9187°E |
| 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").