Portsmouth, United Kingdom

Full City Profile

3.0 /5.0

B Good

208,100 Population 13,391/sq mi density

20 ft Elevation 6 meters

52°F Avg Temperature 11°C

Overall

3.0 / 5.0

Good overall score based on economy, affordability, safety and education

C+

Economy

2.8 / 5.0

$45,748 median income, 7.2% unemployment

C+

Affordability

2.7 / 5.0

$322,475 home value, $1,144/mo rent

Education

3.4 / 5.0

30.0% bachelor's degree or higher

Portsmouth experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 40°F in January while summers reach 61°F in July. The area gets 229 sunny days per year. Annual precipitation totals 44.5 inches. The area receives 5.7 inches of snow annually.

Temperature

40°F Jan (5°C) 61°F Jul (16°C)

Annual Average	51.7°F
	4% below US avg
January Average	40°F (5°C)
July Average	61°F (16°C)
Sunny Days	229 days/yr

Geography

Elevation	20 ft (6 m)
Area	15.5 sq mi (40.2 km²)
Population Density	13,391/sq mi
Coordinates	50.7990°N, 1.0913°W
Timezone	Europe/London

Precipitation & Snow

Annual Rainfall 44.5"

17% above US avg

Snowfall 5.7"

Wettest Month (Nov) 3.66"

Driest Month (Jul) 1.69"

Air Quality

Earthquake History

28 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.6. Most recent: M3.0 on May 19, 2019.

Oct 6, 1999	34 km NNW of Fécamp, France	M4.6	127 km
Jul 14, 2011	62 km SSE of Ventnor, United Kingdom	M3.9	79 km
Jan 29, 2004	2 km E of North Petherton, United Kingdom	M3.7	136 km
May 12, 1994	4 km S of Shipston on Stour, United Kingdom	M3.7	141 km
Jan 29, 2004	2 km E of North Petherton, United Kingdom	M3.6	136 km
Sep 23, 2003	41 km WNW of Étretat, France	M3.6	119 km
Sep 24, 2003	22 km WNW of Cauville-sur-Mer, France	M3.5	140 km
Jun 16, 1998	18 km NNW of Yport, France	M3.3	136 km
Sep 9, 1995	0 km WNW of East Wittering, United Kingdom	M3.3	15 km
Jan 29, 2004	2 km E of North Petherton, United Kingdom	M3.3	136 km
Feb 27, 2019	3 km SE of Dorking, United Kingdom	M3.3	72 km
May 19, 2019	7 km ESE of Swanage, United Kingdom	M3.0	60 km
Nov 26, 1991	50 km N of Urville-Nacqueville, France	M3.0	86 km
Aug 26, 2002	40 km NNW of Étretat, France	M3.0	113 km
Mar 18, 2001	8 km W of Marlborough, United Kingdom	M2.9	88 km
Jan 27, 2015	1 km ENE of Winchester, United Kingdom	M2.9	34 km
Mar 23, 1998	11 km W of Chickerell, United Kingdom	M2.9	113 km
Jul 16, 2005	3 km WSW of Southwater, United Kingdom	M2.9	54 km
Dec 31, 1992	38 km WNW of Étretat, France	M2.8	123 km
Apr 1, 2018	4 km E of Holmwood, United Kingdom	M2.7	72 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	—	139 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	40°F (5°C)	3.6 in	Coldest
February	41°F (5°C)	2.4 in
March	44°F (7°C)	2.6 in
April	48°F (9°C)	2.0 in
May	54°F (12°C)	1.8 in
June	59°F (15°C)	2.1 in
July	61°F (16°C)	1.7 in	Driest
August	63°F (17°C)	2.1 in	Warmest
September	58°F (15°C)	2.8 in
October	53°F (12°C)	3.4 in
November	46°F (8°C)	3.7 in	Wettest
December	43°F (6°C)	3.6 in

Portsmouth has a seasonal temperature swing of 23°F / from 40°F in January to 63°F in August. Total annual precipitation is 31.7 inches, with November being the wettest month (3.7") and July the driest (1.7").

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