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Weather & Climate in Marchwood, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Marchwood experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 41°F in January while summers reach 62°F in July. The area gets 228 sunny days per year, above the national average. Annual precipitation totals 40.6 inches. The area receives 4.1 inches of snow annually. The city sits at an elevation of 33 feet.
Temperature
41°F Jan (5°C)
62°F Jul (17°C)
| Annual Average | 52.8°F |
| 2% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 228 days/yr |
Geography
| Elevation | 33 ft (10 m) |
| Area | 390.8 sq mi (1,012.2 km²) |
| Population Density | 16/sq mi |
| Coordinates | 50.8897°N, 1.4544°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
34 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 | 99 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.7 | 109 km | 7 km |
| May 12, 1994 | 4 km S of Shipston on Stour, United Kingdom | M3.7 | 126 km | 10 km |
| Sep 23, 2003 | 41 km WNW of Étretat, France | M3.6 | 140 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.6 | 109 km | 7 km |
| Jan 1, 1994 | Wales-England region, United Kingdom | M3.6 | 144 km | 10 km |
| Oct 10, 2001 | 2 km SSE of Caerphilly, United Kingdom | M3.5 | 142 km | 10 km |
| Jun 20, 2002 | 3 km N of Marshfield, United Kingdom | M3.4 | 136 km | 14 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.3 | 109 km | 7 km |
| Sep 23, 1992 | 1 km NNE of Tiverton, United Kingdom | M3.3 | 142 km | 10 km |
| Feb 27, 2019 | 3 km SE of Dorking, United Kingdom | M3.3 | 88 km | 10 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 42 km | 10 km |
| Oct 16, 1997 | 4 km ENE of Torquay, United Kingdom | M3.2 | 149 km | 10 km |
| Jan 28, 2002 | 1 km S of Abercarn, United Kingdom | M3.0 | 143 km | 10 km |
| Nov 26, 1991 | 50 km N of Urville-Nacqueville, France | M3.0 | 86 km | 10 km |
| Aug 26, 2002 | 40 km NNW of Étretat, France | M3.0 | 139 km | 4 km |
| May 19, 2019 | 7 km ESE of Swanage, United Kingdom | M3.0 | 45 km | 10 km |
| Jun 17, 1999 | 7 km NNE of Ross on Wye, United Kingdom | M3.0 | 141 km | 10 km |
| Mar 23, 1998 | 11 km W of Chickerell, United Kingdom | M2.9 | 91 km | 5 km |
| Feb 11, 1998 | 4 km SE of Newport, United Kingdom | M2.9 | 128 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 | — | 117 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 3.3 in | Coldest |
| February | 41°F (5°C) | 2.3 in | |
| March | 45°F (7°C) | 2.4 in | |
| April | 48°F (9°C) | 1.9 in | |
| May | 54°F (12°C) | 1.8 in | |
| June | 59°F (15°C) | 2.2 in | |
| July | 62°F (17°C) | 1.5 in | Driest |
| August | 63°F (17°C) | 2.1 in | Warmest |
| September | 58°F (15°C) | 2.6 in | |
| October | 52°F (11°C) | 3.1 in | |
| November | 46°F (8°C) | 3.4 in | Wettest |
| December | 43°F (6°C) | 3.4 in |
Marchwood has a seasonal temperature swing of 22°F / from 41°F in January to 63°F in August. Total annual precipitation is 29.9 inches, with November being the wettest month (3.4") and July the driest (1.5").