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:
Overcast
7°C
°C
°F
Condition: Overcast
Pressure: 1,007 hPa
Feel like: 5 °C
Temperature: 7°C
Cloud: 88%
Humidity: 95%
Wind: ESE - 10 km/h
Visibility: 25.96 km
Fri
23 Jan
4°C / 7°C
Moderate Drizzle
Sat
24 Jan
0°C / 6°C
Overcast
Sun
25 Jan
-1°C / 5°C
Overcast
Mon
26 Jan
0°C / 4°C
Drizzle
Tue
27 Jan
-3°C / 0°C
Overcast
Hourly forecast today:
16:00 PM
7° / 7°
7° / 7°
Overcast
95%
21 km/h
17:00 PM
6° / 7°
6° / 7°
Overcast
94%
22 km/h
18:00 PM
6° / 7°
6° / 7°
Overcast
94%
23 km/h
19:00 PM
6° / 7°
6° / 7°
Overcast
94%
25 km/h
20:00 PM
6° / 7°
6° / 7°
Overcast
94%
27 km/h
21:00 PM
6° / 7°
6° / 7°
Overcast
93%
28 km/h
22:00 PM
6° / 7°
6° / 7°
Overcast
93%
30 km/h
23:00 PM
6° / 7°
6° / 7°
Overcast
93%
32 km/h
00:00 AM
6° / 7°
6° / 7°
Overcast
92%
34 km/h
01:00 AM
6° / 7°
6° / 7°
Drizzle
92%
36 km/h
02:00 AM
6° / 7°
6° / 7°
Drizzle
92%
37 km/h
30 Day Averages and Extremes
- Average high 5.93°C
- Average low 1.33°C
- Hottest day 11°C (11 January 2026)
- Coldest day -3°C (27 January 2026)
- Average humidity 87.23%
- Days with precipitation 30 days
- Highest precipitation 95 mm (11 January 2026)
Yesterday's Data
- Max: 8°C
- Min: 6°C
- Total Precipitation: 37 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 cold weather in Carmarthenshire, with temperatures ranging from 5ºC to 8ºC (41.0ºF to 46.4ºF), you should wear:
- Warm jacket or medium-weight coat
- Layered clothing (such as a thermal shirt under a sweater)
- Long pants (jeans or other thick materials)
- Scarf to protect the neck area
Temperature
Early
7°C / 7°C
Morning
7°C / 8°C
Afternoon
7°C / 7°C
Evening
6°C / 7°C
Air quality
Good
Satisfactory air quality, minimal pollution, low risk
- CO2 0
- CO 0
- NH3 0
- NO2 0
- O3 0
- PM10 0
- PM25 0
- SO2 0
- CH4 0
Sunrise / Sunset
08:10
16:47