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Carmarthen, United Kingdom

Full City Profile

3.5 /5.0
B+ Good
15,854 Population 1,967/sq mi density
75 ft Elevation 23 meters
49°F Avg Temperature 10°C
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.2 / 5.0
$47,504 median income, 4.6% unemployment
B+
Affordability
3.7 / 5.0
$250,529 home value, $1,188/mo rent
B+
Education
3.5 / 5.0
31.3% bachelor's degree or higher
Carmarthen experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 41°F in January while summers reach 60°F in July. The area gets 245 sunny days per year. Annual precipitation totals 50.0 inches. The area receives 0.0 inches of snow annually.

Temperature

41°F Jan (5°C) 60°F Jul (16°C)
Annual Average49.4°F
9% below US avg
January Average41°F (5°C)
July Average60°F (16°C)
Sunny Days245 days/yr

Geography

Elevation75 ft (23 m)
Area806.1 sq mi (2,087.7 km²)
Population Density1,967/sq mi
Coordinates51.8555°N, 4.3054°W
TimezoneEurope/London

Precipitation & Snow

Annual Rainfall 50.0"
31% above US avg
Snowfall 0.0"
Wettest Month (Nov) 5.71"
Driest Month (May) 2.87"

Air Quality

Earthquake History

33 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.7. Most recent: M3.4 on Feb 24, 2023.

Apr 2, 1990 4 km NNE of Presteigne, United Kingdom M4.7 104 km
Oct 25, 1999 10 km N of Hirwaun, United Kingdom M4.5 53 km
Feb 17, 2018 5 km NE of Clydach, United Kingdom M4.3 34 km
Feb 20, 2014 17 km NNW of Ilfracombe, United Kingdom M4.1 56 km
May 31, 2001 20 km NNW of Flexbury, United Kingdom M4.0 99 km
Mar 7, 1996 3 km SW of Clive, United Kingdom M3.8 147 km
May 29, 2013 14 km WSW of Nefyn, United Kingdom M3.8 118 km
Jan 29, 2004 2 km E of North Petherton, United Kingdom M3.7 125 km
Jan 1, 1994 Wales-England region, United Kingdom M3.6 88 km
Jan 29, 2004 2 km E of North Petherton, United Kingdom M3.6 125 km
Jul 29, 1992 8 km WNW of Caernarfon, United Kingdom M3.5 145 km
Mar 17, 1994 5 km WNW of Newtown, United Kingdom M3.5 99 km
Feb 12, 2002 1 km SSE of Deri, United Kingdom M3.5 74 km
Oct 10, 2001 2 km SSE of Caerphilly, United Kingdom M3.5 83 km
Jun 20, 2002 3 km N of Marshfield, United Kingdom M3.4 90 km
Feb 24, 2023 1 km ENE of Brynmawr, United Kingdom M3.4 79 km
Jan 29, 2004 2 km E of North Petherton, United Kingdom M3.3 125 km
Sep 23, 1992 1 km NNE of Tiverton, United Kingdom M3.3 119 km
Jun 16, 1991 11 km WSW of Knighton, United Kingdom M3.3 90 km
Jul 30, 1999 2 km ENE of Bargoed, United Kingdom M3.3 78 km
Source: USGS (M2.5+, 1990–2025)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 41°F (5°C) 5.2 in
February 40°F (5°C) 3.7 in Coldest
March 43°F (6°C) 4.1 in
April 46°F (8°C) 3.0 in
May 51°F (11°C) 2.9 in Driest
June 56°F (13°C) 3.2 in
July 60°F (16°C) 3.2 in Warmest
August 60°F (16°C) 3.9 in
September 56°F (13°C) 4.3 in
October 51°F (11°C) 5.3 in
November 46°F (8°C) 5.7 in Wettest
December 43°F (6°C) 5.5 in

Carmarthen has a seasonal temperature swing of 20°F / from 40°F in February to 60°F in July. Total annual precipitation is 50.0 inches, with November being the wettest month (5.7") and May the driest (2.9").

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