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Weather Carmarthen: Current forecast

Carmarthen / United Kingdom

48.9 °F
Feels like 44.4 °F
Min 46 °F / Max 50 °F
Weather Carmarthen: Mist, 49 °F Mist
10.9 mph SSW
Wind
17.3 mph SSW
Gusts
1012 hPa
Pressure
0 mm
Precipitation
93 %
Humidity
0
UV index

Pollen (today)

Hazel None
Alder Moderate
Birch None
Oak None
Grass None
Mugwort None
Ragweed None
07:03 / 17:57
Sunrise / Sunset
15:32 / 06:29
Moonrise / Moonset
Waxing Moon (93 %)
Moon phase

Updated: Mar 1, 2026, 4:26 CET | Mar 1, 2026, 3:26 GMT

Today's Summary

If you head out in Carmarthen today, you'll see a mist sky. The thermometer currently shows 9.4°C. Take an umbrella with you today – you'll probably need it. During the day temperatures will range between 7.6°C and 10°C.

Hourly forecast – Carmarthen, today

Mar 1, 03:00
49 °F
Mist
Carmarthen Mar 1, 03:00: Mist, 49 °F
Mar 1, 04:00
46 °F
Overcast
Carmarthen Mar 1, 04:00: Overcast, 46 °F
Mar 1, 05:00
46 °F
Patchy rain possible
Carmarthen Mar 1, 05:00: Patchy rain possible, 46 °F
Mar 1, 06:00
47 °F
Light drizzle
Carmarthen Mar 1, 06:00: Light drizzle, 47 °F
Mar 1, 07:00
46 °F
Light drizzle
Carmarthen Mar 1, 07:00: Light drizzle, 46 °F
Mar 1, 08:00
47 °F
Light drizzle
Carmarthen Mar 1, 08:00: Light drizzle, 47 °F
Mar 1, 09:00
48 °F
Patchy rain possible
Carmarthen Mar 1, 09:00: Patchy rain possible, 48 °F
Mar 1, 10:00
49 °F
Patchy rain possible
Carmarthen Mar 1, 10:00: Patchy rain possible, 49 °F
Mar 1, 11:00
49 °F
Patchy rain possible
Carmarthen Mar 1, 11:00: Patchy rain possible, 49 °F
Mar 1, 12:00
50 °F
Patchy rain possible
Carmarthen Mar 1, 12:00: Patchy rain possible, 50 °F
Mar 1, 13:00
50 °F
Patchy rain possible
Carmarthen Mar 1, 13:00: Patchy rain possible, 50 °F
Mar 1, 14:00
50 °F
Patchy rain possible
Carmarthen Mar 1, 14:00: Patchy rain possible, 50 °F
Mar 1, 15:00
50 °F
Patchy rain possible
Carmarthen Mar 1, 15:00: Patchy rain possible, 50 °F
Mar 1, 16:00
50 °F
Patchy rain possible
Carmarthen Mar 1, 16:00: Patchy rain possible, 50 °F
Mar 1, 17:00
50 °F
Patchy rain possible
Carmarthen Mar 1, 17:00: Patchy rain possible, 50 °F
Mar 1, 18:00
49 °F
Patchy rain possible
Carmarthen Mar 1, 18:00: Patchy rain possible, 49 °F
Mar 1, 19:00
49 °F
Patchy rain possible
Carmarthen Mar 1, 19:00: Patchy rain possible, 49 °F
Mar 1, 20:00
49 °F
Overcast
Carmarthen Mar 1, 20:00: Overcast, 49 °F
Mar 1, 21:00
49 °F
Patchy rain possible
Carmarthen Mar 1, 21:00: Patchy rain possible, 49 °F
Mar 1, 22:00
49 °F
Patchy rain possible
Carmarthen Mar 1, 22:00: Patchy rain possible, 49 °F
Mar 1, 23:00
49 °F
Patchy rain possible
Carmarthen Mar 1, 23:00: Patchy rain possible, 49 °F
Mar 2, 00:00
49 °F
Light drizzle
Carmarthen Mar 2, 00:00: Light drizzle, 49 °F
Mar 2, 01:00
49 °F
Patchy rain possible
Carmarthen Mar 2, 01:00: Patchy rain possible, 49 °F
Mar 2, 02:00
49 °F
Light drizzle
Carmarthen Mar 2, 02:00: Light drizzle, 49 °F
Time
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
01
02
Carmarthen Mar 1, 03:00: Mist
Carmarthen Mar 1, 04:00: Overcast
Carmarthen Mar 1, 05:00: Patchy rain possible
Carmarthen Mar 1, 06:00: Light drizzle
Carmarthen Mar 1, 07:00: Light drizzle
Carmarthen Mar 1, 08:00: Light drizzle
Carmarthen Mar 1, 09:00: Patchy rain possible
Carmarthen Mar 1, 10:00: Patchy rain possible
Carmarthen Mar 1, 11:00: Patchy rain possible
Carmarthen Mar 1, 12:00: Patchy rain possible
Carmarthen Mar 1, 13:00: Patchy rain possible
Carmarthen Mar 1, 14:00: Patchy rain possible
Carmarthen Mar 1, 15:00: Patchy rain possible
Carmarthen Mar 1, 16:00: Patchy rain possible
Carmarthen Mar 1, 17:00: Patchy rain possible
Carmarthen Mar 1, 18:00: Patchy rain possible
Carmarthen Mar 1, 19:00: Patchy rain possible
Carmarthen Mar 1, 20:00: Overcast
Carmarthen Mar 1, 21:00: Patchy rain possible
Carmarthen Mar 1, 22:00: Patchy rain possible
Carmarthen Mar 1, 23:00: Patchy rain possible
Carmarthen Mar 2, 00:00: Light drizzle
Carmarthen Mar 2, 01:00: Patchy rain possible
Carmarthen Mar 2, 02:00: Light drizzle
Temperature (°F)
Chance of rain (%)
0
0
100
100
100
100
100
100
67
71
100
74
76
76
86
100
82
0
87
63
75
100
100
100
Precipitation
—
—
0.1 mm
0.4 mm
0.4 mm
0.2 mm
0.1 mm
0.1 mm
0 mm
0 mm
0.1 mm
0 mm
0 mm
0 mm
0 mm
0.1 mm
0 mm
—
0 mm
0 mm
0 mm
0.3 mm
0.1 mm
0.5 mm
Wind (mph)
SSW
11
S
11
S
13
S
14
S
14
S
15
SSW
15
SW
17
SSW
17
SSW
20
SSW
21
SSW
21
SSW
23
S
23
S
23
S
24
S
25
S
26
S
27
S
26
S
27
S
27
S
26
S
26
Pressure (hPa)
1012
1012
1012
1011
1011
1010
1010
1011
1011
1010
1010
1009
1009
1008
1008
1008
1008
1007
1007
1007
1007
1006
1006
1005
Humidity (%)
93 %
94 %
91 %
94 %
97 %
97 %
98 %
97 %
95 %
93 %
93 %
92 %
91 %
89 %
89 %
89 %
88 %
88 %
88 %
88 %
87 %
87 %
88 %
88 %
Cloud cover (%)
50 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %
100 %

14-day weather forecast – Carmarthen

14-day trend for Carmarthen: Temperatures stay fairly stable over the period with no big swings. Lows can drop to around 2.6°C at night, with daytime highs up to 13°C.

Date
Mar 1
Mar 2
Mar 3
Mar 4
Mar 5
Mar 6
Mar 7
Mar 8
Mar 9
Mar 10
Mar 11
Mar 12
Mar 13
Mar 14
Carmarthen March 1, 2026: Patchy rain possible
Carmarthen March 2, 2026: Moderate rain
Carmarthen March 3, 2026: Partly cloudy
Carmarthen March 4, 2026: Sunny
Carmarthen March 5, 2026: Patchy rain possible
Carmarthen March 6, 2026: Patchy rain possible
Carmarthen March 7, 2026: Patchy rain possible
Carmarthen March 8, 2026: Patchy rain possible
Carmarthen March 9, 2026: Patchy rain possible
Carmarthen March 10, 2026: Patchy rain possible
Carmarthen March 11, 2026: Patchy rain possible
Carmarthen March 12, 2026: Patchy rain possible
Carmarthen March 13, 2026: Partly cloudy
Carmarthen March 14, 2026: Partly cloudy
Temperature (°F)
Chance of rain (%)
96
87
0
0
88
76
85
85
81
88
87
70
0
0
Precipitation
2 mm
5.3 mm
0.1 mm
—
0.9 mm
4.2 mm
0.9 mm
0.1 mm
0.2 mm
0.9 mm
0.8 mm
0.1 mm
—
—
Wind max (mph)
27
27
6
15
19
19
17
12
13
10
19
18
21
21
Date Weather Min °F Max °F Sunrise Sunset Moonrise Moonset Moon phase
March 1, 2026 Carmarthen March 1, 2026: Patchy rain possible Patchy rain possible 46 °F 50 °F 07:03 17:57 15:32 06:29 Waxing Moon (93 %)
March 2, 2026 Carmarthen March 2, 2026: Moderate rain Moderate rain 46 °F 49 °F 07:01 17:59 16:57 06:45 Waxing Moon (97 %)
March 3, 2026 Carmarthen March 3, 2026: Partly cloudy Partly cloudy 44 °F 55 °F 06:59 18:01 18:18 06:58 Full Moon (100 %)
March 4, 2026 Carmarthen March 4, 2026: Sunny Sunny 44 °F 55 °F 06:56 18:02 19:36 07:09 Waning Moon (100 %)
March 5, 2026 Carmarthen March 5, 2026: Patchy rain possible Patchy rain possible 46 °F 55 °F 06:54 18:04 20:52 07:20 Waning Moon (97 %)
March 6, 2026 Carmarthen March 6, 2026: Patchy rain possible Patchy rain possible 38 °F 46 °F 06:52 18:06 22:08 07:31 Waning Moon (93 %)
March 7, 2026 Carmarthen March 7, 2026: Patchy rain possible Patchy rain possible 37 °F 49 °F 06:50 18:08 23:24 07:43 Waning Moon (87 %)
March 8, 2026 Carmarthen March 8, 2026: Patchy rain possible Patchy rain possible 47 °F 50 °F 06:47 18:09 — 07:58 Waning Moon (80 %)
March 9, 2026 Carmarthen March 9, 2026: Patchy rain possible Patchy rain possible 45 °F 50 °F 06:45 18:11 00:39 08:18 Waning Moon (72 %)
March 10, 2026 Carmarthen March 10, 2026: Patchy rain possible Patchy rain possible 43 °F 53 °F 06:43 18:13 01:52 08:46 Waning Moon (63 %)
March 11, 2026 Carmarthen March 11, 2026: Patchy rain possible Patchy rain possible 43 °F 50 °F 06:41 18:15 02:58 09:25 Last Quarter (54 %)
March 12, 2026 Carmarthen March 12, 2026: Patchy rain possible Patchy rain possible 40 °F 52 °F 06:38 18:16 03:53 10:17 Waning Crescent (44 %)
March 13, 2026 Carmarthen March 13, 2026: Partly cloudy Partly cloudy 46 °F 54 °F 06:36 18:18 04:34 11:23 Waning Crescent (35 %)
March 14, 2026 Carmarthen March 14, 2026: Partly cloudy Partly cloudy 48 °F 55 °F 06:34 18:20 05:05 12:37 Waning Crescent (26 %)
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