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:
Light Drizzle
9°C
°C
°F
Condition: Drizzle
Pressure: 1,020 hPa
Feel like: 8 °C
Temperature: 9°C
Cloud: 100%
Humidity: 89%
Wind: E - 5 km/h
Visibility: 10.22 km
Sat
07 Nov
3°C / 11°C
Overcast
Sun
08 Nov
2°C / 9°C
Fog
Mon
09 Nov
3°C / 8°C
Fog
Tue
10 Nov
5°C / 10°C
Slight Rain
Wed
11 Nov
8°C / 11°C
Slight Rain
Hourly forecast today:
17:00 PM
7° / 9°
7° / 9°
Drizzle
89%
13 km/h
18:00 PM
7° / 9°
7° / 9°
Drizzle
91%
9 km/h
19:00 PM
7° / 9°
7° / 9°
Overcast
92%
12 km/h
20:00 PM
7° / 8°
7° / 8°
Partly Cloudy
93%
10 km/h
21:00 PM
5° / 7°
5° / 7°
Clear Sky
93%
13 km/h
22:00 PM
6° / 7°
6° / 7°
Mainly Clear
93%
12 km/h
23:00 PM
6° / 7°
6° / 7°
Mainly Clear
93%
11 km/h
00:00 AM
5° / 6°
5° / 6°
Mainly Clear
93%
14 km/h
01:00 AM
6° / 6°
6° / 6°
Overcast
94%
11 km/h
02:00 AM
5° / 6°
5° / 6°
Overcast
93%
10 km/h
03:00 AM
5° / 6°
5° / 6°
Overcast
94%
10 km/h
30 Day Averages and Extremes
- Average high 10.27°C
- Average low 4.67°C
- Hottest day 15°C (24 October 2026)
- Coldest day 0°C (17 November 2026)
- Average humidity 79.47%
- Days with precipitation 18 days
- Highest precipitation 80 mm (26 October 2026)
Yesterday's Data
- Max: 9°C
- Min: 8°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 cool weather in Carmarthenshire, with temperatures between 8ºC to 11ºC (46.4ºF to 51.8ºF), you should consider wearing:
- Comfortable pants or jeans
- Long-sleeve top or shirt
- Knit hat (optional for cooler mornings)
- Thin gloves (optional for early mornings or late evenings)
Temperature
Early
6°C / 8°C
Morning
6°C / 8°C
Afternoon
7°C / 11°C
Evening
5°C / 7°C
Air quality
Moderate
Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals
- CO2 447
- CO 196
- NH3 3
- NO2 13
- O3 36
- PM10 20
- PM25 17
- SO2 1
- CH4 1,486
Sunrise / Sunset
07:20
16:40