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Weather & Climate in Plymouth, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Plymouth experiences four distinct seasons with an average annual temperature of 51°F (10°C). Winters average 42°F in January while summers reach 61°F in July / relatively mild seasonal variation. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 41.6 inches. The city sits at an elevation of 46 feet.
Temperature
42°F Jan (6°C)
61°F Jul (16°C)
| Annual Average | 50.5°F |
| 6% below US avg | |
| January Average | 42°F (6°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 46 ft (14 m) |
| Area | 30.6 sq mi (79.3 km²) |
| Population Density | 8,501/sq mi |
| Coordinates | 50.3715°N, 4.1431°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
21 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.1.
| Nov 10, 1996 | 19 km S of St Just, United Kingdom | M4.1 | 116 km | 10 km |
| Feb 20, 2014 | 17 km NNW of Ilfracombe, United Kingdom | M4.1 | 110 km | 3 km |
| May 31, 2001 | 20 km NNW of Flexbury, United Kingdom | M4.0 | 79 km | 29 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.7 | 114 km | 7 km |
| Aug 17, 1995 | 28 km S of Salcombe, United Kingdom | M3.6 | 50 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.6 | 114 km | 7 km |
| Jan 1, 1994 | Wales-England region, United Kingdom | M3.6 | 114 km | 10 km |
| Oct 10, 2001 | 2 km SSE of Caerphilly, United Kingdom | M3.5 | 147 km | 10 km |
| Sep 23, 1992 | 1 km NNE of Tiverton, United Kingdom | M3.3 | 77 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.3 | 114 km | 7 km |
| Oct 16, 1997 | 4 km ENE of Torquay, United Kingdom | M3.2 | 49 km | 10 km |
| Jan 19, 2001 | 53 km S of Mullion, United Kingdom | M3.2 | 114 km | 10 km |
| Sep 5, 1999 | 15 km WSW of Salcombe, United Kingdom | M2.9 | 26 km | 5 km |
| Feb 8, 1998 | 18 km SW of Mullion, United Kingdom | M2.9 | 105 km | 5 km |
| Mar 23, 1998 | 11 km W of Chickerell, United Kingdom | M2.9 | 108 km | 5 km |
| Jun 16, 1991 | 17 km SSW of Wembury, United Kingdom | M2.8 | 22 km | 10 km |
| May 31, 1998 | 38 km WNW of Northam, United Kingdom | M2.8 | 99 km | 15 km |
| Mar 23, 2008 | 38 km NW of St Just, United Kingdom | M2.8 | 135 km | 6 km |
| Jun 23, 2011 | 4 km WSW of Bovey Tracey, United Kingdom | M2.7 | 37 km | 3 km |
| Apr 2, 2000 | 33 km S of Mullion, United Kingdom | M2.7 | 103 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 | — | 82 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (6°C) | 4.8 in | |
| February | 42°F (6°C) | 3.7 in | Coldest |
| March | 44°F (7°C) | 3.2 in | |
| April | 47°F (8°C) | 2.6 in | |
| May | 52°F (11°C) | 2.5 in | |
| June | 57°F (14°C) | 2.5 in | |
| July | 61°F (16°C) | 2.2 in | Warmest, Driest |
| August | 61°F (16°C) | 2.8 in | |
| September | 57°F (14°C) | 3.3 in | |
| October | 52°F (11°C) | 4.3 in | |
| November | 47°F (8°C) | 4.7 in | |
| December | 44°F (7°C) | 5.1 in | Wettest |
Plymouth has a seasonal temperature swing of 19°F / from 42°F in February to 61°F in July. Total annual precipitation is 41.6 inches, with December being the wettest month (5.1") and July the driest (2.2").