Carmarthenshire, United Kingdom Weather
- Carmarthenshire, United Kingdom Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- 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 Weather Summary
- Weather averages by month
- Carmarthenshire's weather
- Frequently asked questions
- Comments
Current conditions
Updated:
Clear Sky
24°C
°C
°F
Condition: Clear Sky
Pressure: 1,014 hPa
Feel like: 26 °C
Temperature: 24°C
Cloud: 2%
Humidity: 66%
Wind: ENE - 10 km/h
Visibility: 23.56 km
Thu
25 Jun
17°C / 23°C
Drizzle
Fri
26 Jun
17°C / 22°C
Drizzle
Sat
27 Jun
13°C / 17°C
Slight Rain
Sun
28 Jun
12°C / 18°C
Overcast
Mon
29 Jun
11°C / 16°C
Slight Rain Showers
Hourly forecast today:
23:00 PM
17° / 24°
17° / 24°
Clear Sky
66%
26 km/h
00:00 AM
18° / 23°
18° / 23°
Partly Cloudy
72%
19 km/h
01:00 AM
17° / 22°
17° / 22°
Clear Sky
77%
17 km/h
02:00 AM
18° / 22°
18° / 22°
Overcast
79%
15 km/h
03:00 AM
18° / 21°
18° / 21°
Partly Cloudy
81%
15 km/h
04:00 AM
18° / 21°
18° / 21°
Clear Sky
84%
17 km/h
05:00 AM
18° / 22°
18° / 22°
Mainly Clear
81%
15 km/h
06:00 AM
19° / 23°
19° / 23°
Mainly Clear
80%
16 km/h
07:00 AM
20° / 24°
20° / 24°
Overcast
77%
20 km/h
08:00 AM
20° / 25°
20° / 25°
Overcast
73%
24 km/h
09:00 AM
21° / 27°
21° / 27°
Partly Cloudy
69%
28 km/h
30 Day Averages and Extremes
- Average high 18.3°C
- Average low 12.13°C
- Hottest day 34°C (24 June 2026)
- Coldest day 0°C (07 July 2026)
- Average humidity 75.6%
- Days with precipitation 23 days
- Highest precipitation 67 mm (16 June 2026)
Yesterday's Data
- Max: 31°C
- Min: 18°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
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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 very hot weather in Carmarthenshire, with the high temperatures above 34ºC (93.2ºF), consider wearing:
- Ultra-thin, breathable socks
- High SPF sunscreen for outdoor activities
- UV-blocking sunglasses
- Broad-brimmed sun hat
Temperature
Early
17°C / 19°C
Morning
20°C / 26°C
Afternoon
19°C / 31°C
Evening
19°C / 24°C
Air quality
Good
Satisfactory air quality, minimal pollution, low risk
- CO2 430
- CO 119
- NH3 3
- NO2 3
- O3 55
- PM10 13
- PM25 8
- SO2 0
- CH4 1,431
Sunrise / Sunset
03:59
20:39