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Weather in Carmarthen, United Kingdom 🇬🇧

Weather Forecast in Carmarthen

Current Weather in Carmarthen

Sunny
23°C
Feels like 25°C. Sunny.
🌬️ 30 km/h N
💧 57% Humidity
🧭 1020 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 4.3
🌡️ Dew Point: 10°C
🌅 Sunrise: 05:19 AM
🌇 Sunset: 09:27 PM
Map Overlays:

In Carmarthen right now it is 23°C and sunny, feeling like 25°C. Humidity is 57% with winds around 30 km/h, and the UV index is 4 (moderate). Over the next few days, temperatures in Carmarthen range from about 10°C to 22°C.

Hourly Forecast for Carmarthen

17:00
Sunny
20°
2%
18:00
Sunny
20°
2%
19:00
Sunny
19°
4%
20:00
Partly Cloudy
18°
7%
21:00
Sunny
16°
10%
22:00
Partly Cloudy
14°
16%
23:00
Clear
13°
13%
00:00
Clear
13°
10%
01:00
Clear
13°
9%
02:00
Overcast
12°
20%
03:00
Overcast
12°
20%
04:00
Overcast
11°
19%
05:00
Clear
11°
7%
06:00
Sunny
10°
7%
07:00
Sunny
12°
6%
08:00
Sunny
15°
4%
09:00
Sunny
17°
3%
10:00
Partly Cloudy
19°
3%
11:00
Partly Cloudy
20°
2%
12:00
Sunny
21°
2%
13:00
Partly Cloudy
21°
3%
14:00
Partly Cloudy
20°
3%
15:00
Sunny
20°
3%
16:00
Sunny
21°
3%

14-Day Forecast for Carmarthen

Sat, Jul 18
Sunny Sunny
21° / 12°
Sun, Jul 19
Sunny Sunny
21° / 10°
Mon, Jul 20
Sunny Sunny
22° / 11°
Tue, Jul 21
Sunny Sunny
23° / 12°
Wed, Jul 22
Sunny Sunny
21° / 12°
Thu, Jul 23
Partly Cloudy Partly Cloudy
21° / 13°
Fri, Jul 24
Sunny Sunny
23° / 14°
Sat, Jul 25
Sunny Sunny
24° / 13°
Sun, Jul 26
Patchy rain nearby Patchy rain nearby
18° / 14°
Mon, Jul 27
Patchy rain nearby Patchy rain nearby
18° / 12°
Tue, Jul 28
Patchy rain nearby Patchy rain nearby
17° / 14°
Wed, Jul 29
Patchy rain nearby Patchy rain nearby
18° / 11°
Thu, Jul 30
Patchy rain nearby Patchy rain nearby
16° / 12°
Fri, Jul 31
Patchy rain nearby Patchy rain nearby
19° / 15°

Additional Forecasts for Carmarthen

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 119.0 μg/m³
O₃ (Ozone) 73.0 μg/m³
NO₂ (Nitrogen Dioxide) 0.5 μg/m³
SO₂ (Sulphur Dioxide) 0.1 μg/m³
PM2.5 (Fine particles) 5.8 μg/m³
PM10 (Coarse particles) 12.9 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 17:00 to 19:00, when it is around 19°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Carmarthen

What is the temperature in Carmarthen right now?

The current temperature in Carmarthen is 23°C (74°F), sunny (feels like 25°C).

What's the weather like in Carmarthen right now?

Conditions in Carmarthen right now: Sunny, humidity 57%, wind 30 km/h N.

What is today's forecast for Carmarthen?

Today in Carmarthen: high 21°C, low 12°C, sunny. Chance of rain: 5%.

What is the 7-day weather forecast for Carmarthen?

Daily highs and lows for Carmarthen:

  • 2026-07-18: 21°C / 12°C
  • 2026-07-19: 21°C / 10°C
  • 2026-07-20: 22°C / 11°C
  • 2026-07-21: 23°C / 12°C
  • 2026-07-22: 21°C / 12°C
  • 2026-07-23: 21°C / 13°C
  • 2026-07-24: 23°C / 14°C
Is it going to rain in Carmarthen today?

There is a 5% chance of rain in Carmarthen today.

What is the wind speed in Carmarthen right now?

Wind in Carmarthen is currently 30 km/h (18 mph) from the N.

What is the UV index in Carmarthen right now?

The UV index in Carmarthen is currently 4.3 (moderate). Sun protection is recommended when the index is 3 or higher.

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