Clwydyfagwyr (Merthyr Tydfil) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 22 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius; -
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius;
-
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius;
-
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius; -
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius; -
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius;
7 day forecast for Clwydyfagwyr
Today (6 September 2026)
| Time |
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
 |
 |
 |
|
 |
|
 |
|
|
|
|
|
|
|
|
|
 |
 |
 |
|
|
| Chance of precipitation |
90%
|
90%
|
70%
|
40%
|
10%
|
<5%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
20%
|
50%
|
| Temperature |
12°
|
12°
|
12°
|
12°
|
11°
|
12°
|
13°
|
14°
|
15°
|
17°
|
18°
|
20°
|
21°
|
22°
|
22°
|
22°
|
20°
|
19°
|
18°
|
17°
|
17°
|
17°
|
| Feels like temperature (°C) |
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
12°
|
13°
|
14°
|
15°
|
17°
|
18°
|
19°
|
20°
|
21°
|
21°
|
19°
|
18°
|
17°
|
17°
|
17°
|
17°
|
| Wind direction and speed |
ENE
3
|
E
3
|
E
3
|
ESE
3
|
ESE
4
|
SE
5
|
SE
6
|
SSE
8
|
SSE
9
|
SSE
9
|
SSE
10
|
S
10
|
S
11
|
S
10
|
SSW
10
|
SSW
9
|
SW
8
|
WSW
7
|
WSW
7
|
WSW
7
|
SW
7
|
SW
7
|
| Wind gust (mph) |
10
|
11
|
12
|
13
|
14
|
17
|
18
|
19
|
20
|
21
|
22
|
23
|
23
|
23
|
22
|
20
|
18
|
16
|
16
|
16
|
17
|
19
|
| Visibility |
G
|
M
|
M
|
M
|
G
|
M
|
M
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
P
|
P
|
| Humidity |
86%
|
87%
|
90%
|
91%
|
93%
|
96%
|
96%
|
92%
|
85%
|
75%
|
73%
|
65%
|
59%
|
56%
|
57%
|
62%
|
68%
|
76%
|
83%
|
88%
|
93%
|
94%
|
| UV | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 5 | 4 | 2 | 1 | 1 | 1 | - | - | - | - |
Monday (7 September 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
70%
|
60%
|
50%
|
60%
|
70%
|
50%
|
30%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
20%
|
40%
|
30%
|
50%
|
80%
|
80%
|
70%
|
| Temperature (°C) |
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
15°
|
14°
|
14°
|
14°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
14°
|
14°
|
13°
|
13°
|
| Feels like temperature (°C) |
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
14°
|
13°
|
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
13°
|
13°
|
12°
|
12°
|
11°
|
11°
|
| Wind direction and speed (mph) |
SW
7
|
WSW
8
|
WSW
8
|
WSW
8
|
WSW
8
|
WSW
8
|
W
7
|
W
7
|
W
8
|
W
8
|
W
9
|
W
9
|
W
10
|
WSW
10
|
WSW
13
|
WSW
13
|
WSW
13
|
WSW
13
|
WSW
13
|
WSW
11
|
WSW
10
|
WSW
11
|
WSW
11
|
WSW
11
|
| Wind gust (mph) |
20
|
21
|
20
|
20
|
19
|
18
|
17
|
16
|
17
|
18
|
20
|
21
|
22
|
25
|
26
|
28
|
28
|
26
|
27
|
24
|
24
|
26
|
27
|
22
|
| Visibility (description) |
P
|
P
|
P
|
P
|
P
|
P
|
M
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
G
|
| Humidity |
96%
|
96%
|
96%
|
96%
|
96%
|
96%
|
95%
|
94%
|
92%
|
86%
|
76%
|
73%
|
67%
|
66%
|
65%
|
66%
|
68%
|
68%
|
73%
|
76%
|
79%
|
84%
|
89%
|
90%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 2 | 3 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
Tuesday (8 September 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
50%
|
40%
|
20%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
30%
|
30%
|
30%
|
20%
|
20%
|
20%
|
20%
|
20%
|
30%
|
30%
|
30%
|
30%
|
30%
|
30%
|
30%
|
| Temperature (°C) |
12°
|
12°
|
11°
|
10°
|
10°
|
10°
|
10°
|
9°
|
11°
|
12°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
13°
|
12°
|
11°
|
11°
|
10°
|
| Feels like temperature (°C) |
11°
|
10°
|
9°
|
9°
|
9°
|
8°
|
8°
|
8°
|
9°
|
10°
|
11°
|
12°
|
12°
|
12°
|
13°
|
12°
|
12°
|
12°
|
11°
|
11°
|
10°
|
9°
|
9°
|
9°
|
| Wind direction and speed (mph) |
WSW
9
|
W
9
|
W
9
|
W
8
|
W
7
|
W
7
|
W
6
|
W
6
|
W
7
|
W
8
|
W
11
|
W
11
|
W
11
|
W
13
|
W
13
|
W
13
|
WNW
13
|
WNW
11
|
WNW
11
|
WNW
9
|
W
8
|
W
7
|
W
7
|
W
7
|
| Wind gust (mph) |
20
|
20
|
19
|
17
|
17
|
15
|
15
|
16
|
19
|
24
|
25
|
26
|
27
|
28
|
28
|
28
|
27
|
26
|
23
|
20
|
18
|
17
|
17
|
16
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
92%
|
92%
|
91%
|
91%
|
90%
|
88%
|
88%
|
87%
|
84%
|
80%
|
73%
|
67%
|
64%
|
59%
|
57%
|
56%
|
57%
|
59%
|
63%
|
68%
|
75%
|
79%
|
83%
|
84%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
Wednesday (9 September 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
<5%
|
10%
|
20%
|
20%
|
| Temperature (°C) |
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
10°
|
11°
|
12°
|
13°
|
14°
|
14°
|
15°
|
15°
|
15°
|
14°
|
14°
|
13°
|
11°
|
10°
|
10°
|
10°
|
| Feels like temperature (°C) |
8°
|
8°
|
8°
|
8°
|
7°
|
8°
|
8°
|
8°
|
8°
|
9°
|
10°
|
11°
|
12°
|
13°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
10°
|
10°
|
9°
|
9°
|
| Wind direction and speed (mph) |
W
7
|
W
7
|
W
7
|
W
6
|
W
7
|
W
6
|
W
6
|
W
6
|
W
7
|
W
8
|
WNW
9
|
WNW
10
|
WNW
10
|
WNW
9
|
WNW
9
|
WNW
9
|
WNW
9
|
WNW
9
|
WNW
8
|
WNW
6
|
W
5
|
W
3
|
W
3
|
WNW
3
|
| Wind gust (mph) |
17
|
17
|
16
|
17
|
16
|
16
|
16
|
16
|
19
|
21
|
21
|
22
|
22
|
22
|
22
|
22
|
20
|
19
|
17
|
14
|
11
|
10
|
10
|
9
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
85%
|
85%
|
87%
|
88%
|
88%
|
89%
|
90%
|
90%
|
86%
|
83%
|
76%
|
68%
|
65%
|
59%
|
58%
|
56%
|
57%
|
59%
|
63%
|
67%
|
75%
|
79%
|
84%
|
86%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 4 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
Thursday (10 September 2026)
| Time |
00:00
|
01:00
|
02:00
|
03:00
|
04:00
|
05:00
|
06:00
|
07:00
|
08:00
|
09:00
|
10:00
|
11:00
|
12:00
|
13:00
|
14:00
|
15:00
|
16:00
|
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|
|
|
 |
| Chance of precipitation |
30%
|
40%
|
40%
|
50%
|
50%
|
60%
|
60%
|
50%
|
50%
|
50%
|
50%
|
50%
|
50%
|
50%
|
50%
|
50%
|
50%
|
50%
|
50%
|
50%
|
60%
|
60%
|
60%
|
50%
|
| Temperature (°C) |
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
11°
|
11°
|
12°
|
13°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
| Feels like temperature (°C) |
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
10°
|
11°
|
11°
|
11°
|
12°
|
13°
|
13°
|
14°
|
14°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
12°
|
| Wind direction and speed (mph) |
W
2
|
WSW
2
|
WSW
3
|
S
3
|
SSE
3
|
SE
3
|
S
4
|
S
4
|
S
5
|
S
6
|
S
8
|
SSW
9
|
SSW
10
|
SSW
10
|
SSW
10
|
SW
10
|
SW
10
|
SSW
10
|
SSW
10
|
SSW
9
|
SSW
9
|
SW
9
|
SW
9
|
SW
9
|
| Wind gust (mph) |
9
|
9
|
10
|
10
|
10
|
11
|
12
|
13
|
15
|
17
|
19
|
19
|
20
|
21
|
21
|
21
|
20
|
19
|
19
|
18
|
18
|
18
|
19
|
18
|
| Visibility (description) |
G
|
G
|
M
|
M
|
M
|
M
|
P
|
P
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
P
|
P
|
P
|
| Humidity |
86%
|
87%
|
90%
|
92%
|
93%
|
95%
|
95%
|
96%
|
95%
|
94%
|
92%
|
92%
|
90%
|
88%
|
89%
|
90%
|
88%
|
89%
|
91%
|
94%
|
95%
|
95%
|
96%
|
96%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Friday (11 September 2026)
| Time |
00:00
|
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
| Chance of precipitation | – |
50%
|
40%
|
30%
|
40%
|
30%
|
40%
|
40%
|
40%
|
| Temperature (°C) |
14°
|
14°
|
14°
|
13°
|
14°
|
15°
|
16°
|
14°
|
13°
|
| Feels like temperature (°C) |
12°
|
12°
|
12°
|
12°
|
13°
|
13°
|
14°
|
13°
|
12°
|
| Wind direction and speed (mph) |
SW
9
|
SW
9
|
WSW
9
|
WSW
9
|
W
11
|
W
12
|
W
11
|
W
9
|
W
7
|
| Wind gust (mph) |
17
|
19
|
19
|
21
|
22
|
23
|
21
|
16
|
12
|
| Visibility (description) | – |
P
|
P
|
P
|
M
|
G
|
M
|
M
|
M
|
| Humidity |
96%
|
96%
|
96%
|
96%
|
91%
|
81%
|
78%
|
86%
|
93%
|
| UV | - | - | - | 1 | 2 | 3 | 1 | 1 | - |
Saturday (12 September 2026)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
40%
|
40%
|
40%
|
40%
|
40%
|
40%
|
30%
|
30%
|
| Temperature (°C) |
14°
|
13°
|
12°
|
14°
|
15°
|
15°
|
14°
|
13°
|
| Feels like temperature (°C) |
13°
|
13°
|
11°
|
12°
|
14°
|
14°
|
13°
|
12°
|
| Wind direction and speed (mph) |
W
6
|
W
5
|
NNW
5
|
NW
7
|
NW
9
|
WNW
8
|
WNW
7
|
N
6
|
| Wind gust (mph) |
14
|
15
|
18
|
22
|
22
|
21
|
18
|
15
|
| Visibility (description) |
M
|
P
|
M
|
M
|
M
|
M
|
M
|
M
|
| Humidity |
95%
|
94%
|
94%
|
86%
|
75%
|
77%
|
84%
|
92%
|
| UV | - | - | 1 | 2 | 3 | 2 | 1 | - |
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Wales weather forecast
Headline:
Warm and largely dry on Sunday with sunny spells.
This Evening and Tonight:
A fine evening with some late sunshine. Skies will cloud over after dark, with showery outbreaks of rain arriving in the early hours, perhaps with some heavier bursts by the morning. A fairly mild night for most. Minimum temperature 13 °C.
Sunday:
Outbreaks of showery rain moving through by mid morning. Becoming dry and rather warm with some bright or sunny spells developing. Clouding over again in the west during the evening. Maximum temperature 23 °C.
Outlook for Monday to Wednesday:
Unsettled at first with spells of heavy rain at times and brisk winds. Settling down for Wednesday, with spells of sunshine and temperatures around the seasonal average.
Updated: