Onchan, Isle of Man

Full City Profile

9,172 Population 2,352/sq mi density

190 ft Elevation 58 meters

48°F Avg Temperature 9°C

Onchan experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 45°F in January while summers reach 58°F in July. The area gets 226 sunny days per year. Annual precipitation totals 54.9 inches. The area receives 7.9 inches of snow annually.

Temperature

45°F Jan (7°C) 58°F Jul (14°C)

Annual Average	47.9°F
	11% below US avg
January Average	45°F (7°C)
July Average	58°F (14°C)
Sunny Days	226 days/yr

Geography

Elevation	190 ft (58 m)
Area	3.9 sq mi (10.1 km²)
Population Density	2,352/sq mi
Coordinates	54.1733°N, 4.4532°W
Timezone	Europe/Isle_of_Man

Precipitation & Snow

Annual Rainfall 54.9"

44% above US avg

Snowfall 7.9"

Wettest Month (Oct) 4.30"

Driest Month (May) 2.30"

Air Quality

Earthquake History

14 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.8. Most recent: M0.0 on May 26, 2015.

May 29, 2013	14 km WSW of Nefyn, United Kingdom	M3.8	145 km
Feb 14, 2005	2 km SW of Conwy, United Kingdom	M3.8	108 km
Apr 28, 2009	3 km WSW of Flookburgh, United Kingdom	M3.7	94 km
Jul 29, 1992	8 km WNW of Caernarfon, United Kingdom	M3.5	113 km
Feb 10, 1994	2 km NNE of Tregarth, United Kingdom	M3.3	110 km
Sep 1, 1999	4 km SSW of Llanfairfechan, United Kingdom	M3.3	110 km
Aug 25, 2013	23 km W of Cleveleys, United Kingdom	M3.2	76 km
May 26, 2015	6 km WSW of Caernarfon, United Kingdom	M3.0	118 km
Jun 26, 1993	5 km WSW of High Bentham, United Kingdom	M3.0	121 km
May 13, 2001	3 km W of Locharbriggs, United Kingdom	M2.9	116 km
Jun 26, 2013	14 km WSW of Nefyn, United Kingdom	M2.8	145 km
Oct 16, 1998	1 km WSW of Y Felinheli, United Kingdom	M2.7	111 km
Apr 24, 2000	12 km NNW of Penrith, United Kingdom	M2.6	125 km
May 28, 2008	12 km WNW of Penrith, United Kingdom	M2.5	113 km

Source: USGS (M2.5+, 1990-2025)

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	45°F (7°C)	4.0 in
February	40°F (4°C)	2.9 in	Coldest
March	42°F (6°C)	3.1 in
April	45°F (7°C)	2.5 in
May	50°F (10°C)	2.3 in	Driest
June	54°F (12°C)	2.4 in
July	58°F (14°C)	2.4 in	Warmest
August	57°F (14°C)	3.2 in
September	54°F (12°C)	3.4 in
October	50°F (10°C)	4.3 in	Wettest
November	44°F (7°C)	4.3 in
December	41°F (5°C)	4.1 in

Onchan has a seasonal temperature swing of 18°F / from 40°F in February to 58°F in July. Total annual precipitation is 38.9 inches, with October being the wettest month (4.3") and May the driest (2.3").

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