Castel, Guernsey

Full City Profile

16 ft Elevation 5 meters

52°F Avg Temperature 11°C

Castel experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 49°F in January while summers reach 62°F in July. The area gets 241 sunny days per year. Annual precipitation totals 42.9 inches. The area receives 0.3 inches of snow annually.

Temperature

49°F Jan (9°C) 62°F Jul (16°C)

Annual Average	52.2°F
	3% below US avg
January Average	49°F (9°C)
July Average	62°F (16°C)
Sunny Days	241 days/yr

Geography

Elevation	16 ft (5 m)
Area	2.5 sq mi (6.5 km²)
Population Density	0/sq mi
Coordinates	49.4676°N, 2.6002°W
Timezone	Europe/Guernsey

Precipitation & Snow

Annual Rainfall 42.9"

13% above US avg

Snowfall 0.3"

Wettest Month (Nov) 4.30"

Driest Month (Jul) 1.60"

Air Quality

Earthquake History

76 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M0.0 on May 19, 2019.

Apr 30, 1990	5 km SE of Saint Helier, Jersey	M4.2	53 km
Jul 11, 2014	23 km W of Saint Helier, Jersey	M3.9	38 km
Jul 11, 2002	3 km NW of Pluduno, France	M3.8	104 km
Feb 25, 2015	30 km SW of Saint Helier, Jersey	M3.7	54 km
Aug 17, 1995	28 km S of Salcombe, United Kingdom	M3.6	103 km
Jul 26, 1993	5 km ESE of Villedieu-les-Poêles, France	M3.5	128 km
Apr 22, 1995	6 km E of Binic, France	M3.5	96 km
Jun 22, 1997	13 km SSE of Saint Helier, Jersey	M3.4	60 km
Sep 17, 1994	33 km NE of Plouézec, France	M3.4	61 km
Dec 7, 1998	0 km SE of Cherrueix, France	M3.4	117 km
Jul 23, 2014	France	M3.3	57 km
Sep 22, 1991	5 km ENE of Neulliac, France	M3.3	149 km
Aug 29, 2001	5 km ENE of Saint-Lô, France	M3.3	120 km
Jul 14, 1998	7 km NNE of Poullaouen, France	M3.2	139 km
Feb 12, 1990	1 km N of Lanmeur, France	M3.2	121 km
Oct 16, 1997	4 km ENE of Torquay, United Kingdom	M3.2	129 km
May 30, 2001	3 km SW of Quintin, France	M3.2	123 km
Apr 28, 1998	3 km NE of Plouha, France	M3.1	88 km
Apr 17, 1992	3 km SSE of Plounévez-Quintin, France	M3.1	141 km
Jul 13, 2006	12 km N of Plounéour-Trez, France	M3.1	148 km

Source: USGS (M2.5+, 1990–2025)

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	—	118 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	49°F (9°C)	4.1 in
February	43°F (6°C)	3.2 in	Coldest
March	46°F (8°C)	2.9 in
April	48°F (9°C)	2.1 in
May	53°F (12°C)	2.0 in
June	58°F (14°C)	1.9 in
July	62°F (16°C)	1.6 in	Driest
August	62°F (17°C)	1.9 in	Warmest
September	60°F (15°C)	2.7 in
October	55°F (13°C)	3.6 in
November	50°F (10°C)	4.3 in	Wettest
December	46°F (8°C)	4.1 in

Castel has a seasonal temperature swing of 19°F / from 43°F in February to 62°F in August. Total annual precipitation is 34.4 inches, with November being the wettest month (4.3") and July the driest (1.6").

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