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:
6°C
42.8°F
°C °F

Condition: Overcast

Pressure: 1,001 hPa

Feel like: 3 °C

Temperature: 6°C

Cloud: 96%

Humidity: 82%

Wind: SW - 7 km/h

Visibility: 31.4 km

Weather forecast

Sun
12 Apr
0°C / 11°C
Drizzle
Mon
13 Apr
0°C / 13°C
Partly Cloudy
Tue
14 Apr
2°C / 13°C
Drizzle
Wed
15 Apr
3°C / 11°C
Drizzle
Thu
16 Apr
7°C / 12°C
Drizzle
Hourly forecast today:
06:00 AM
3° / 6°
3° / 6°
Overcast
82% 14 km/h
07:00 AM
3° / 7°
3° / 7°
Partly Cloudy
75% 20 km/h
08:00 AM
2° / 7°
2° / 7°
Mainly Clear
68% 36 km/h
09:00 AM
1° / 8°
1° / 8°
Partly Cloudy
63% 45 km/h
10:00 AM
1° / 7°
1° / 7°
Drizzle
66% 47 km/h
11:00 AM
1° / 6°
1° / 6°
Drizzle
71% 45 km/h
12:00 PM
1° / 6°
1° / 6°
Drizzle
72% 45 km/h
13:00 PM
1° / 7°
1° / 7°
Drizzle
67% 51 km/h
14:00 PM
0° / 7°
0° / 7°
Drizzle
58% 59 km/h
15:00 PM
0° / 8°
0° / 8°
Drizzle
55% 63 km/h
16:00 PM
1° / 8°
1° / 8°
Moderate Drizzle
61% 60 km/h

30 Day Averages and Extremes

  • Average high 12.5°C
  • Average low 4.73°C
  • Hottest day 21°C (06 April 2026)
  • Coldest day 0°C (12 April 2026)
  • Average humidity 78.97%
  • Days with precipitation 27 days
  • Highest precipitation 73 mm (11 April 2026)

Yesterday's Data

  • Max: 9°C
  • Min: 6°C
  • Total Precipitation: 7 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:
- Casual shoes or sneakers
- Long-sleeve top or shirt
- Thin gloves (optional for early mornings or late evenings)
- Cotton socks

Temperature

Early
5°C / 6°C
Morning
1°C / 8°C
Afternoon
0°C / 8°C
Evening
3°C / 6°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 448
  • CO 142
  • NH3 1
  • NO2 1
  • O3 85
  • PM10 5
  • PM25 3
  • SO2 0
  • CH4 1,399

Sunrise / Sunset

05:26
19:08