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. 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) |
Geography
| Elevation | 279 ft (85 m) |
| Area | 9.1 sq mi (23.5 km²) |
| Population Density | 380/sq mi |
| Coordinates | 51.2425°N, 0.6706°E |
| 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").