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Weather in Carmarthen, United Kingdom 🇬🇧

Current Weather in Carmarthen

Light rain shower
14°C
Feels like 11°C. Light rain shower.
🌬️ 20 km/h W
💧 91% Humidity
🧭 1010 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 13°C
🌅 Sunrise: 06:40 AM
🌇 Sunset: 07:48 PM
Map Overlays:

The current temperature in Carmarthen is 14°C, light rain shower, feeling like 11°C. Relative humidity is 91%, with winds around 20 km/h, and the UV index is 0 (low). The next few days in Carmarthen look set for about 10°C up to 18°C.

Hourly Forecast for Carmarthen

05:00
Light rain shower
14°
68%
06:00
Light rain shower
13°
61%
07:00
Patchy rain nearby
13°
35%
08:00
Overcast
13°
25%
09:00
Overcast
13°
24%
10:00
Patchy rain nearby
14°
23%
11:00
Patchy rain nearby
15°
19%
12:00
Patchy rain nearby
15°
13%
13:00
Patchy rain nearby
16°
11%
14:00
Sunny
16°
3%
15:00
Sunny
16°
3%
16:00
Cloudy
16°
9%
17:00
Partly Cloudy
16°
7%
18:00
Patchy rain nearby
16°
11%
19:00
Patchy rain nearby
15°
15%
20:00
Clear
14°
6%
21:00
Clear
14°
8%
22:00
Clear
13°
9%
23:00
Clear
13°
9%
00:00
Clear
12°
10%
01:00
Clear
12°
12%
02:00
Clear
11°
13%
03:00
Clear
10°
13%
04:00
Clear
10°
12%

14-Day Forecast for Carmarthen

Tue, Sep 08
Patchy rain nearby Patchy rain nearby
16° / 13°
Wed, Sep 09
Patchy rain nearby Patchy rain nearby
16° / 10°
Thu, Sep 10
Patchy rain nearby Patchy rain nearby
18° / 12°
Fri, Sep 11
Patchy rain nearby Patchy rain nearby
20° / 10°
Sat, Sep 12
Light rain shower Light rain shower
17° /
Sun, Sep 13
Cloudy Cloudy
17° / 12°
Mon, Sep 14
Patchy rain nearby Patchy rain nearby
18° / 13°
Tue, Sep 15
Cloudy Cloudy
17° / 12°
Wed, Sep 16
Sunny Sunny
17° / 10°
Thu, Sep 17
Overcast Overcast
17° / 13°
Fri, Sep 18
Patchy rain nearby Patchy rain nearby
18° / 11°
Sat, Sep 19
Sunny Sunny
17° /
Sun, Sep 20
Sunny Sunny
19° /
Mon, Sep 21
Partly Cloudy Partly Cloudy
20° / 11°

Additional Forecasts for Carmarthen

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 148.0 μg/m³
O₃ (Ozone) 69.0 μg/m³
NO₂ (Nitrogen Dioxide) 1.4 μg/m³
SO₂ (Sulphur Dioxide) 0.2 μg/m³
PM2.5 (Fine particles) 3.4 μg/m³
PM10 (Coarse particles) 7.4 μg/m³

Historical Weather

Weather Forecasts for Other Cities in United Kingdom

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Best Time to Be Outside in Carmarthen Today

The most comfortable window in Carmarthen today looks like 14:00 to 17:00, when it is around 16°C. It should stay dry through that window. The next likely rain is around 05:00.

Frequently Asked Questions about Weather in Carmarthen

What is the temperature in Carmarthen right now?

Carmarthen is sitting at 14°C (58°F) right now, light rain shower (feels like 11°C).

What's the weather like in Carmarthen right now?

Current weather in Carmarthen: Light rain shower, humidity 91%, wind 20 km/h W.

What is today's forecast for Carmarthen?

Today in Carmarthen: high 16°C, low 13°C, patchy rain nearby. Chance of rain: 70%.

What is the 7-day weather forecast for Carmarthen?

Daily highs and lows for Carmarthen:

  • 2026-09-08: 16°C / 13°C
  • 2026-09-09: 16°C / 10°C
  • 2026-09-10: 18°C / 12°C
  • 2026-09-11: 20°C / 10°C
  • 2026-09-12: 17°C / 9°C
  • 2026-09-13: 17°C / 12°C
  • 2026-09-14: 18°C / 13°C
Is it going to rain in Carmarthen today?

There is a 70% chance of rain in Carmarthen today. Total expected precipitation: 3.76 mm.

What is the wind speed in Carmarthen right now?

Wind in Carmarthen is currently 20 km/h (13 mph) from the W.

What is the UV index in Carmarthen right now?

The UV index in Carmarthen is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

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