Carmarthen, United Kingdom

Wales · United Kingdom

Carmarthen is a small city in Wales, United Kingdom with a population of 14,638. Elevation: 75 ft (23 m). Average temperature: 49°F (10°C).

Population source: Wikidata (dated census and official estimates), GeoNames. Climate: WorldClim 2.1 normals (1970-2000), NASA POWER. Updated August 2026

14,638 Population 18/sq mi density
75 ft Elevation 23 meters
49°F Avg Temperature 10°C
50.0 in Annual Rain
Europe / London Timezone

Discover Carmarthen, United Kingdom

Explore over 40 sections covering people, economy, housing, health, crime, climate, community, costs, trends, schools, colleges, hospitals, treatment centers, industries, museums, libraries, breweries, farmers markets, grocery stores, pharmacies, campgrounds, parks, trails, stadiums, ski resorts, daycare centers, nursing homes, churches, fire stations, cell towers, bridges, power plants, EV stations, prisons, radio stations, airports, police stations, post offices, Amtrak stations, superfund sites, UNESCO sites, and more.
Use the tabs and dropdown menus below to navigate every data point we track for this city.

Full City Profile

People

Population14,638
Density18/mi²
Veterans4.7%

Climate

Avg Temp49°F (10°C)
Rain50.0 in/yr
Elevation75 ft (23 m)
Population14,638
Population Density18 / sq mi
Elevation75 ft (23 m)
Coordinates51.8555°, -4.3054°
TimezoneEurope/London
Country🇬🇧 United Kingdom
State / ProvinceWales
Average Temperature49°F (10°C)
January Average41°F (5°C)
July Average60°F (16°C)
Annual Precipitation50.0 inches (1,269 mm)
Annual Snowfall0.0 inches (0 cm)

About Carmarthen

Carmarthen is a small city in United Kingdom (Wales) with a population of 14,638. The city sits at an elevation of 75 feet (23 meters) above sea level. The average annual temperature is 49°F (10°C). Temperatures range from 41°F in January to 60°F in July. Annual precipitation averages 50.0 inches. The timezone is Europe/London.

Climate in Carmarthen

Carmarthen has an average annual temperature of 10.2°C (50°F). The hottest month is Aug (15.8°C), the coldest is Jan (5.1°C). Average annual precipitation is 1462 mm.

Month Avg °C / °F Min / Max °C Rain (mm)
Jan 5.1°C / 41°F -0.9° / 10.9° 131.0
Feb 6.3°C / 43°F -0.4° / 11.7° 153.2
Mar 6.6°C / 44°F -0.5° / 13.9° 121.9
Apr 8.3°C / 47°F 0.3° / 16.7° 71.7
May 11.3°C / 52°F 3.7° / 19.2° 74.2
Jun 14°C / 57°F 6.5° / 23.2° 83.1
Jul 15.4°C / 60°F 8.6° / 24.1° 93.2
Aug 15.8°C / 60°F 9.2° / 24° 100.8
Sep 14.2°C / 57°F 7.2° / 22.5° 124.3
Oct 11.3°C / 52°F 4.8° / 16.8° 180.4
Nov 8.2°C / 47°F 1.1° / 14.2° 137.4
Dec 6.5°C / 44°F -0.7° / 12.2° 191.4
Carmarthen experiences four distinct seasons with an average annual temperature of 49°F (10°C). Winters average 41°F in January while summers reach 60°F in July / relatively mild seasonal variation. Annual precipitation totals 50.0 inches (wetter than the 38-inch national average). The city sits at an elevation of 75 feet.

Temperature

41°F Jan (5°C) 60°F Jul (16°C)
Annual Average49.4°F
9% below United Kingdom avg
January Average41°F (5°C)
July Average60°F (16°C)

Geography

Elevation75 ft (23 m)
Area806.1 sq mi (2,087.7 km²)
Population Density18/sq mi
Coordinates51.8555°N, 4.3054°W
TimezoneEurope/London

Precipitation & Snow

Annual Rainfall 50.0"
31% above United Kingdom 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").

View full weather details →

Schools in Carmarthen

10 public schools (OpenStreetMap data).

School Level Enrollment Teachers Student/Teacher
Bro Myrddin Welsh Comprehensive School - - - -
Johnstown School - - - -
Queen Elizabeth High - - - -
Saint Mary's Roman Catholic School - - - -
Model Church in Wales School - - - -
Ysgol y Dderwen - - - -
Myrddin Community Primary School - - - -
Richmond Park School - - - -
Llangunnor Primary School - - - -
Rhydygors School - - - -
View full schools details →

Radio Stations near Carmarthen

3 stations within ~55 km.

Station Genre Quality
XL:UK Radio afrobeat, asian urban hits MP3 192 kbps
Easy 50s - MP3
RustRadio metal MP3 320 kbps

Museums in Carmarthen

NameTypeAddressPhoneAnnual Revenue
Amgueddfa Sir Gâr - Carmarthenshire Museum
Capel Eidalwyr
Cartref Dylan Thomas - Dylan Thomas Boathouse
Dylan Thomas Boathouse
Heritage Centre
Kidwelly Industrial Museum
National Woollen Museum
Parc Howard Museum
Teifi Valley Railway Museum
Tin Shed Experience
West Wales Museum of Childhood

Libraries in Carmarthen

NameAddressStaffAnnual VisitsCirculationCollectionPrograms
Burry Port Branch Library0.0
Carmarthen Library0.0
Llandysul Library0.0
Llanelli Library0.0
Llywnhendy Library0.0
Newcastle Emlyn Library0.0
St Clears Public Library0.0
University of Wales Trinity Saint David, Carmarthen Library0.0

Farmers Markets in Carmarthen

NameAddressSeasonHoursOrganicWebsite
Community Market
Llanelli Indoor Market
Llanybydder Sheep Mart

Hotels in Carmarthen

4 hotels within city radius - OpenStreetMap data

Boars Head Hotel
Hotel Spilman
Ivy Bush Royal Hotel
Rose and Crown

Restaurants in Carmarthen

18 restaurants within city radius - OpenStreetMap data

Cinnamon
Cofio Lounge
Dexters
Florentino's
Fortune House
Ginger
Harvester
Kwong Yick
Merlin Restaurant
PizzaExpress
Shikaku
Sloppy Joes
Taste of Thailand
The Raj
The Warren
The Welsh House
Toby Carvery
Y Barbican

Cafes in Carmarthen

17 cafes within city radius - OpenStreetMap data

Bubble Talk
Caffè Nero
Cegin Myrddin
Coffee#1
Costa
Cowpots
Donuts & Dragons
Sally Anne's Coffee Shop
Sied Goffi
Starbucks
Tea Traders
Tesco Café
The Big Bite
The Quad
The Quad
The Tea Shop
Time Coffee Bar

Cinemas in Carmarthen

1 cinemas within city radius - OpenStreetMap data

Vue

Theatres in Carmarthen

1 theatres within city radius - OpenStreetMap data

Lyric Theatre

Monuments in Carmarthen

2 monuments within city radius - OpenStreetMap data

Royal Welch Fusiliers Monument
Sir William Nott

Castles in Carmarthen

1 castles within city radius - OpenStreetMap data

Carmarthen Castle

Dentists in Carmarthen

2 dentists within city radius - OpenStreetMap data

Haydn Dental
Old Oak Dental Practice

Veterinaries in Carmarthen

3 veterinaries within city radius - OpenStreetMap data

Carmarthen Veterinary Investigation Centre (DEFRA)
Merlin Veterinary Group
Towy Vets

Train Stations in Carmarthen

2 train stations within city radius - OpenStreetMap data

Carmarthen
Danycoed

Bus Stations in Carmarthen

1 bus stations within city radius - OpenStreetMap data

Carmarthen Bus Station

Gas Stations in Carmarthen

5 gas stations within city radius - OpenStreetMap data

Johnstown Filling Station
Morrisons
Tanerdy Garage
Tesco Extra
Texaco

Banks in Carmarthen

8 banks within city radius - OpenStreetMap data

Barclays
Halifax
HSBC UK
Lloyds Bank
Nationwide
NatWest
Principality Building Society
Santander

Shopping Malls in Carmarthen

1 shopping malls within city radius - OpenStreetMap data

New Market Hall (2009)

Breweries in Carmarthen

NameTypeAddressPhoneWebsite
Nag's Head Brewery

Stadiums & Teams in Carmarthen

TeamLeagueDivision

Airports Near Carmarthen

12 airports within the area.

AirportIATAType
Haverfordwest AirportHAWMedium Airport
Swansea AirportSWSMedium Airport
Aberporth Airport-Small Airport
Bethesda-Small Airport
Coetir Bach Farm Airstrip-Small Airport
Cruglas Synod Inn Airstrip-Small Airport
Crymych Airstrip-Small Airport
Lundy Island Airfield-Small Airport
Old Park Farm Airstrip-Small Airport
Pembrey West Wales Airport-Small Airport
Rhigos Airstrip-Small Airport
Rosemarket Airstrip-Small Airport

Treatment Centers in Carmarthen

1 treatment centers.

CenterTypePhone
Celtic Therapy & Rehab Services

Churches & Religious Organizations in Carmarthen

24 religious organizations (IRS tax-exempt data).

NameAddress
Babell Chapel
Bethania Welsh Calvinistic Methodist Chapel
Capel y Tabernacl
Carmarthen Evangelical Church
Chapel
Christ Church
Ebenezer Gospel Hall
English Baptist Church
English Congregational Church
Kingdom Hall of Jehovah's Witnesses
Lammas Street Meeting House
Penuel Baptist Chapel
Saint Anne's Church
Saint Mary's Church
Salem Welsh Independent
St David's Chapel
St. Johns
St. Peter's
The Salvation Army - Carmarthen
Towy Community Church
Union Street Chapel
Water Street Chapel
Wesley Methodist Church
Y Priordy

Explore Near Carmarthen

UFO Sightings
2
Reported UFO sightings from the National UFO Reporting Center database
View all →

UFO Sightings Near Carmarthen

2 UFO sighting reports from the National UFO Reporting Center (NUFORC) found near Carmarthen.

Name Year Description
Carmarthen (uk/wales) 2012 I seen a Triangle Object in the sky with Red lights on Each side It Moved Forward could have been back or It just moved Then It stopped
Carmarthen (wales) 1999 Chrome like object seen moving in the smoke trail left behind after an aeroplane

Quick Facts

Timezone
Europe/London

🇬🇧 About United Kingdom

Capital London
Population 66,488,991
Area 244,820 km²
GDP (USD) $3,420,796,653,789
GDP per capita $49,944
HDI 0.940
Life expectancy 81.2 years
Internet users 96.3%
Urban population 83.2%
Currency GBP (Pound)
Languages English
Calling code +44
TLD .uk
Driving side left

Public Holidays in United Kingdom

14 public holidays this year

Date Holiday Local Name
Jan 1 New Year's Day New Year's Day
Jan 2 2 January 2 January
Mar 17 Saint Patrick's Day Saint Patrick's Day
Apr 3 Good Friday Good Friday
Apr 6 Easter Monday Easter Monday
May 4 Early May Bank Holiday Early May Bank Holiday
May 25 Spring Bank Holiday Spring Bank Holiday
Jun 15 World Cup Bank Holiday World Cup Bank Holiday
Jul 13 Battle of the Boyne Battle of the Boyne
Aug 3 Summer Bank Holiday Summer Bank Holiday
Aug 31 Summer Bank Holiday Summer Bank Holiday
Nov 30 Saint Andrew's Day Saint Andrew's Day
Dec 25 Christmas Day Christmas Day
Dec 28 St. Stephen's Day Boxing Day

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Frequently Asked Questions About Carmarthen

What is the population of Carmarthen?

Carmarthen has a population of 14,638 residents and is located in United Kingdom. The population density is 18 people per square mile, spread across 806.1 square miles.

What is the weather like in Carmarthen?

Carmarthen has a four-season climate with an average annual temperature of 49°F (10°C). Winter temperatures average 41°F in January, while summers reach an average of 60°F in July. Annual rainfall totals 50.0 inches.

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