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Weather & Climate in Harrietsham, United Kingdom
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Harrietsham 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 279 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 | 279 ft (85 m) |
| Area | 9.1 sq mi (23.5 km²) |
| Population Density | 159/sq mi |
| Coordinates | 51.2425°N, 0.6706°W |
| Timezone | Europe/London |
Precipitation & Snow
Air Quality
Earthquake History
38 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Oct 6, 1999 | 34 km NNW of Fécamp, France | M4.6 | 135 km | 1 km |
| Apr 28, 2007 | 1 km WNW of Lympne, United Kingdom | M4.6 | 29 km | 10 km |
| Feb 15, 1994 | 7 km ESE of Thetford, United Kingdom | M4.4 | 127 km | 10 km |
| Jan 23, 2007 | 57 km ENE of Broadstairs, United Kingdom | M4.1 | 111 km | 10 km |
| Dec 14, 1991 | 3 km SSE of Longfossé, France | M4.0 | 106 km | 10 km |
| Sep 15, 1994 | 38 km NE of Broadstairs, United Kingdom | M3.9 | 89 km | 10 km |
| Jan 27, 1998 | 27 km W of Le Touquet-Paris-Plage, France | M3.8 | 91 km | 2 km |
| May 22, 2015 | 3 km SSE of Ramsgate, United Kingdom | M3.7 | 54 km | 12 km |
| Mar 3, 2009 | 1 km ENE of Hawkinge, United Kingdom | M3.5 | 38 km | 4 km |
| Jan 27, 1992 | 6 km SSE of Longfossé, France | M3.5 | 109 km | 10 km |
| Feb 17, 1992 | 1 km W of Warboys, United Kingdom | M3.4 | 139 km | 10 km |
| Sep 9, 1995 | 0 km WNW of East Wittering, United Kingdom | M3.3 | 121 km | 10 km |
| Feb 27, 2019 | 3 km SE of Dorking, United Kingdom | M3.3 | 68 km | 10 km |
| Feb 13, 1997 | 26 km W of Le Touquet-Paris-Plage, France | M3.2 | 89 km | 5 km |
| Jul 2, 2001 | 3 km NNE of Oostduinkerke, Belgium | M3.1 | 142 km | 5 km |
| May 4, 1990 | 0 km NE of Coquelles, France | M3.1 | 86 km | 10 km |
| Aug 26, 2002 | 40 km NNW of Étretat, France | M3.0 | 141 km | 4 km |
| May 1, 1997 | 21 km W of Fort-Mahon-Plage, France | M3.0 | 109 km | 5 km |
| Mar 28, 1996 | 67 km ESE of Aldeburgh, United Kingdom | M3.0 | 145 km | 10 km |
| Nov 5, 1994 | 5 km N of Debenham, United Kingdom | M3.0 | 120 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 | - | 70 km |
| 1911 | FOLKSTONE, ENGLAND | Meteorological | 0.9 m | - | 43 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 2.8 in | |
| February | 39°F (4°C) | 1.7 in | Coldest, Driest |
| March | 43°F (6°C) | 2.1 in | |
| April | 46°F (8°C) | 1.8 in | |
| May | 52°F (11°C) | 1.7 in | |
| June | 58°F (14°C) | 2.1 in | |
| July | 62°F (17°C) | 1.8 in | Warmest |
| August | 62°F (17°C) | 2.1 in | |
| September | 57°F (14°C) | 2.5 in | |
| October | 51°F (11°C) | 2.9 in | |
| November | 44°F (7°C) | 3.0 in | Wettest |
| December | 41°F (5°C) | 2.8 in |
Harrietsham has a seasonal temperature swing of 23°F / from 39°F in February to 62°F in July. Total annual precipitation is 27.3 inches, with November being the wettest month (3.0") and February the driest (1.7").