Carmarthenshire, United Kingdom Weather

  1. Carmarthenshire, United Kingdom Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Carmarthenshire over the next 12 hours
  7. Temperature and possibility of rain in Carmarthenshire in the coming days
  8. Rainfall in Carmarthenshire in the coming days
  9. Carmarthenshire Weather Summary
  10. Weather averages by month
  11. Carmarthenshire's weather
  12. Frequently asked questions
  13. Comments
Carmarthenshire, Weather
(Photo by Viktor Forgacs on Unsplash)

Current conditions

Updated:
3°C
37.4°F
°C °F

Condition: Clear Sky

Pressure: 1,015 hPa

Feel like: 1 °C

Temperature: 3°C

Cloud: 0%

Humidity: 96%

Wind: NNE - 6 km/h

Visibility: 5.78 km

Weather forecast

Tue
10 Nov
4°C / 8°C
Moderate Drizzle
Wed
11 Nov
5°C / 9°C
Drizzle
Thu
12 Nov
3°C / 7°C
Overcast
Fri
13 Nov
0°C / 8°C
Overcast
Sat
14 Nov
0°C / 9°C
Overcast
Hourly forecast today:
03:00 AM
2° / 3°
2° / 3°
Clear Sky
96% 15 km/h
04:00 AM
3° / 3°
3° / 3°
Clear Sky
94% 16 km/h
05:00 AM
2° / 3°
2° / 3°
Partly Cloudy
95% 13 km/h
06:00 AM
2° / 2°
2° / 2°
Overcast
96% 14 km/h
07:00 AM
2° / 2°
2° / 2°
Overcast
95% 15 km/h
08:00 AM
2° / 3°
2° / 3°
Overcast
94% 16 km/h
09:00 AM
3° / 4°
3° / 4°
Overcast
91% 12 km/h
10:00 AM
4° / 6°
4° / 6°
Overcast
84% 15 km/h
11:00 AM
5° / 8°
5° / 8°
Clear Sky
81% 23 km/h
12:00 PM
5° / 9°
5° / 9°
Clear Sky
78% 28 km/h
13:00 PM
5° / 10°
5° / 10°
Clear Sky
74% 29 km/h

30 Day Averages and Extremes

  • Average high 10.03°C
  • Average low 4.8°C
  • Hottest day 15°C (26 October 2026)
  • Coldest day 0°C (13 November 2026)
  • Average humidity 80.17%
  • Days with precipitation 18 days
  • Highest precipitation 80 mm (26 October 2026)

Yesterday's Data

  • Max: 10°C
  • Min: 3°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Carmarthenshire over the next 12 hours

Temperature and possibility of rain in Carmarthenshire in the coming days

Rainfall in Carmarthenshire in the coming days

Carmarthenshire Climate Summary

Carmarthenshire features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 11.04ºC (51.87ºF), which is about 0.29% higher than the national average for United Kingdom. Annually, the city experiences approximately 50.37 millimeters (1.98 inches) of rainfall, spread across 133.64 rainy days, accounting for 36.61% of the year.

Longitude 51.8572309
Latitude -4.3115959
Yearly high temperature 12.62ºC (54.72ºF)
Yearly low temperature 7.83ºC (46.09ºF)
Hottest month June 16.62ºC (61.92ºF)
Coldest month March 4.06ºC (39.31ºF)
Yearly precip 50.37mm (1.98in)
Days with rainfall 133.64 days (36.61%)
Driest month May (82.57%)
Wettest month December (86.09%)

Weather averages by month

Month High / Low (°C) Rain
January 7.44° / 4.01° 13.09 days
February 7.64° / 3.84° 13.0 days
March 9.35° / 4.06° 9.45 days
April 11.88° / 5.76° 7.64 days
May 14.16° / 7.89° 8.0 days
June 16.62° / 10.61° 9.82 days
July 18.01° / 12.4° 10.0 days
August 17.57° / 12.79° 12.09 days
September 16.24° / 11.18° 10.73 days
October 13.61° / 9.44° 11.91 days
November 10.31° / 6.65° 13.18 days
December 8.59° / 5.31° 14.73 days

Carmarthenshire's weather

Frequently asked questions

1. What is the hottest month in Carmarthenshire?

June has the highest average monthly temperature (daily mean of 16.62ºC) and March are the coolest (daily mean of 4.06ºC).

2. What should I wear in Carmarthenshire today?

For today's cool weather in Carmarthenshire, with temperatures between 7ºC to 10ºC (44.6ºF to 50.0ºF), you should consider wearing:
- Light jacket or cardigan
- Comfortable pants or jeans
- Cotton socks
- Casual shoes or sneakers

Temperature

Early
2°C / 3°C
Morning
3°C / 4°C
Afternoon
5°C / 9°C
Evening
3°C / 5°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 455
  • CO 205
  • NH3 0
  • NO2 10
  • O3 31
  • PM10 22
  • PM25 19
  • SO2 0
  • CH4 1,475

Sunrise / Sunset

07:25
16:35