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Weather & Climate in Saint Leonards-on-Sea, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint Leonards-on-Sea experiences four distinct seasons with an average annual temperature of 53°F (11°C). Winters average 42°F in January while summers reach 62°F in July. The area gets 232 sunny days per year, above the national average. Annual precipitation totals 40.0 inches. The area receives 4.7 inches of snow annually. The city sits at an elevation of 164 feet.
Temperature
42°F Jan (5°C)
62°F Jul (17°C)
| Annual Average | 52.5°F |
| 3% below US avg | |
| January Average | 42°F (5°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 232 days/yr |
Geography
| Elevation | 164 ft (50 m) |
| Area | 16.7 sq mi (43.3 km²) |
| Population Density | 599/sq mi |
| Coordinates | 50.8557°N, 0.5452°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
39 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 | 41 km | 10 km |
| Oct 6, 1999 | 34 km NNW of Fécamp, France | M4.6 | 91 km | 1 km |
| Jan 23, 2007 | 57 km ENE of Broadstairs, United Kingdom | M4.1 | 141 km | 10 km |
| Dec 14, 1991 | 3 km SSE of Longfossé, France | M4.0 | 94 km | 10 km |
| Jul 14, 2011 | 62 km SSE of Ventnor, United Kingdom | M3.9 | 122 km | 10 km |
| Sep 15, 1994 | 38 km NE of Broadstairs, United Kingdom | M3.9 | 122 km | 10 km |
| Jan 27, 1998 | 27 km W of Le Touquet-Paris-Plage, France | M3.8 | 61 km | 2 km |
| May 22, 2015 | 3 km SSE of Ramsgate, United Kingdom | M3.7 | 80 km | 12 km |
| Sep 23, 2003 | 41 km WNW of Étretat, France | M3.6 | 128 km | 10 km |
| Mar 3, 2009 | 1 km ENE of Hawkinge, United Kingdom | M3.5 | 53 km | 4 km |
| Sep 24, 2003 | 22 km WNW of Cauville-sur-Mer, France | M3.5 | 137 km | 17 km |
| Jan 27, 1992 | 6 km SSE of Longfossé, France | M3.5 | 96 km | 10 km |
| Feb 27, 2019 | 3 km SE of Dorking, United Kingdom | M3.3 | 71 km | 10 km |
| Jun 16, 1998 | 18 km NNW of Yport, France | M3.3 | 112 km | 5 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 101 km | 10 km |
| Feb 13, 1997 | 26 km W of Le Touquet-Paris-Plage, France | M3.2 | 60 km | 5 km |
| May 4, 1990 | 0 km NE of Coquelles, France | M3.1 | 89 km | 10 km |
| Nov 25, 1998 | 26 km N of Grand-Fort-Philippe, France | M3.0 | 116 km | 10 km |
| Aug 26, 2002 | 40 km NNW of Étretat, France | M3.0 | 98 km | 4 km |
| May 1, 1997 | 21 km W of Fort-Mahon-Plage, France | M3.0 | 77 km | 5 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 | — | 77 km |
| 1911 | FOLKSTONE, ENGLAND | Meteorological | 0.9 m | — | 56 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 3.2 in | |
| February | 40°F (4°C) | 1.9 in | Coldest |
| March | 44°F (6°C) | 2.2 in | |
| April | 47°F (8°C) | 1.9 in | |
| May | 53°F (12°C) | 1.8 in | Driest |
| June | 58°F (15°C) | 2.2 in | |
| July | 62°F (17°C) | 1.8 in | |
| August | 62°F (17°C) | 1.9 in | Warmest |
| September | 58°F (14°C) | 2.7 in | |
| October | 52°F (11°C) | 3.3 in | |
| November | 45°F (7°C) | 3.4 in | Wettest |
| December | 42°F (6°C) | 3.1 in |
Saint Leonards-on-Sea has a seasonal temperature swing of 23°F / from 40°F in February to 62°F in August. Total annual precipitation is 29.4 inches, with November being the wettest month (3.4") and May the driest (1.8").