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Weather & Climate in Keynsham, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Keynsham experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 41°F in January while summers reach 61°F in July. The area gets 215 sunny days per year. Annual precipitation totals 45.7 inches. The area receives 2.6 inches of snow annually. The city sits at an elevation of 82 feet.
Temperature
41°F Jan (5°C)
61°F Jul (16°C)
| Annual Average | 51.9°F |
| 4% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 215 days/yr |
Geography
| Elevation | 82 ft (25 m) |
| Area | 138.8 sq mi (359.5 km²) |
| Population Density | 113/sq mi |
| Coordinates | 51.4139°N, 2.4978°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
38 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Sep 22, 2002 | 2 km ESE of Wombourn, United Kingdom | M4.8 | 125 km | 9 km |
| Apr 2, 1990 | 4 km NNE of Presteigne, United Kingdom | M4.7 | 106 km | 18 km |
| Oct 25, 1999 | 10 km N of Hirwaun, United Kingdom | M4.5 | 86 km | 10 km |
| Feb 17, 2018 | 5 km NE of Clydach, United Kingdom | M4.3 | 100 km | 12 km |
| Feb 20, 2014 | 17 km NNW of Ilfracombe, United Kingdom | M4.1 | 116 km | 3 km |
| Sep 23, 2000 | 1 km WSW of Warwick, United Kingdom | M4.0 | 114 km | 13 km |
| May 12, 1994 | 4 km S of Shipston on Stour, United Kingdom | M3.7 | 90 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.7 | 49 km | 7 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.6 | 49 km | 7 km |
| Jan 1, 1994 | Wales-England region, United Kingdom | M3.6 | 65 km | 10 km |
| Feb 12, 2002 | 1 km SSE of Deri, United Kingdom | M3.5 | 61 km | 8 km |
| Oct 10, 2001 | 2 km SSE of Caerphilly, United Kingdom | M3.5 | 51 km | 10 km |
| Mar 17, 1994 | 5 km WNW of Newtown, United Kingdom | M3.5 | 138 km | 10 km |
| Feb 24, 2023 | 1 km ENE of Brynmawr, United Kingdom | M3.4 | 63 km | 10 km |
| Jun 20, 2002 | 3 km N of Marshfield, United Kingdom | M3.4 | 44 km | 14 km |
| Jun 16, 1991 | 11 km WSW of Knighton, United Kingdom | M3.3 | 111 km | 10 km |
| Jul 30, 1999 | 2 km ENE of Bargoed, United Kingdom | M3.3 | 57 km | 6 km |
| Sep 23, 1992 | 1 km NNE of Tiverton, United Kingdom | M3.3 | 88 km | 10 km |
| Jan 29, 2004 | 2 km E of North Petherton, United Kingdom | M3.3 | 49 km | 7 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 134 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 | — | 108 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 3.4 in | |
| February | 40°F (4°C) | 2.4 in | Coldest |
| March | 43°F (6°C) | 2.7 in | |
| April | 46°F (8°C) | 2.1 in | |
| May | 52°F (11°C) | 2.3 in | |
| June | 58°F (14°C) | 2.5 in | |
| July | 61°F (16°C) | 2.0 in | Driest |
| August | 61°F (16°C) | 2.6 in | Warmest |
| September | 57°F (14°C) | 3.0 in | |
| October | 51°F (11°C) | 3.1 in | |
| November | 45°F (7°C) | 3.2 in | |
| December | 42°F (6°C) | 3.5 in | Wettest |
Keynsham has a seasonal temperature swing of 21°F / from 40°F in February to 61°F in August. Total annual precipitation is 32.9 inches, with December being the wettest month (3.5") and July the driest (2.0").