Coelbren (Powys) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 11 degrees Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 8° Celsius;
Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 8 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: 17° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius; -
Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius; -
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius;
Sunny intervals changing to partly cloudy by early evening.
Sunrise:
Sunset:
M UV
L Pollution
No pollen data.
7 day forecast for Coelbren
Today (15 September 2026)
| Time |
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 |
<5%
|
<5%
|
10%
|
40%
|
50%
|
30%
|
10%
|
<5%
|
10%
|
10%
|
20%
|
20%
|
20%
|
40%
|
50%
|
50%
|
60%
|
| Temperature |
14°
|
13°
|
14°
|
15°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
16°
|
15°
|
14°
|
13°
|
13°
|
12°
|
12°
|
| Feels like temperature (°C) |
13°
|
12°
|
13°
|
14°
|
14°
|
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
12°
|
12°
|
11°
|
11°
|
| Wind direction and speed |
W
8
|
W
8
|
W
8
|
W
9
|
W
9
|
W
10
|
W
11
|
WNW
13
|
WNW
11
|
WNW
10
|
WNW
9
|
WNW
8
|
WNW
7
|
W
6
|
W
6
|
W
5
|
W
5
|
| Wind gust (mph) |
19
|
19
|
21
|
22
|
25
|
27
|
28
|
28
|
26
|
24
|
22
|
20
|
17
|
16
|
16
|
16
|
16
|
| Visibility |
M
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
96%
|
93%
|
92%
|
86%
|
82%
|
74%
|
61%
|
57%
|
63%
|
65%
|
64%
|
68%
|
75%
|
83%
|
85%
|
89%
|
91%
|
| UV | 1 | 1 | 2 | 2 | 2 | 4 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
Wednesday (16 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%
|
60%
|
70%
|
70%
|
80%
|
80%
|
70%
|
70%
|
70%
|
60%
|
60%
|
40%
|
40%
|
20%
|
10%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
20%
|
30%
|
30%
|
50%
|
| Temperature (°C) |
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
12°
|
13°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
13°
|
13°
|
12°
|
12°
|
12°
|
| Feels like temperature (°C) |
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
11°
|
12°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
13°
|
13°
|
12°
|
11°
|
11°
|
11°
|
11°
|
| Wind direction and speed (mph) |
W
5
|
W
6
|
W
6
|
W
6
|
WNW
6
|
WNW
6
|
WNW
6
|
W
6
|
W
7
|
WNW
7
|
WNW
7
|
WNW
7
|
WNW
8
|
WNW
8
|
WNW
8
|
W
9
|
W
9
|
W
9
|
W
8
|
WSW
8
|
WSW
8
|
WSW
7
|
WSW
7
|
WSW
7
|
| Wind gust (mph) |
17
|
17
|
17
|
17
|
18
|
17
|
17
|
16
|
17
|
19
|
21
|
22
|
22
|
22
|
21
|
22
|
22
|
21
|
19
|
18
|
19
|
21
|
22
|
23
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
93%
|
92%
|
93%
|
93%
|
93%
|
93%
|
93%
|
93%
|
93%
|
88%
|
85%
|
82%
|
75%
|
71%
|
68%
|
66%
|
66%
|
67%
|
70%
|
75%
|
77%
|
83%
|
84%
|
85%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
Thursday (17 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 |
80%
|
70%
|
90%
|
≥95%
|
≥95%
|
≥95%
|
70%
|
20%
|
10%
|
<5%
|
10%
|
10%
|
10%
|
20%
|
20%
|
30%
|
40%
|
50%
|
50%
|
40%
|
30%
|
20%
|
20%
|
10%
|
| Temperature (°C) |
12°
|
12°
|
13°
|
13°
|
13°
|
13°
|
14°
|
13°
|
12°
|
13°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
13°
|
12°
|
11°
|
11°
|
11°
|
| Feels like temperature (°C) |
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
12°
|
12°
|
12°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
11°
|
10°
|
10°
|
10°
|
10°
|
| Wind direction and speed (mph) |
WSW
8
|
WSW
8
|
WSW
9
|
WSW
10
|
WSW
10
|
WSW
10
|
W
10
|
W
9
|
W
8
|
W
8
|
W
10
|
W
11
|
W
11
|
W
11
|
W
11
|
W
13
|
W
12
|
W
11
|
W
9
|
W
8
|
W
7
|
W
7
|
W
6
|
W
6
|
| Wind gust (mph) |
25
|
25
|
26
|
26
|
26
|
26
|
25
|
21
|
20
|
23
|
24
|
26
|
26
|
26
|
27
|
27
|
26
|
25
|
23
|
21
|
21
|
19
|
19
|
19
|
| Visibility (description) |
G
|
M
|
M
|
P
|
P
|
P
|
P
|
M
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
88%
|
94%
|
94%
|
97%
|
98%
|
98%
|
98%
|
95%
|
93%
|
87%
|
79%
|
71%
|
66%
|
65%
|
65%
|
63%
|
63%
|
66%
|
72%
|
78%
|
84%
|
85%
|
86%
|
85%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 3 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | - | - | - | - |
Friday (18 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 |
10%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
20%
|
30%
|
30%
|
40%
|
60%
|
70%
|
80%
|
80%
|
80%
|
80%
|
70%
|
70%
|
80%
|
70%
|
| Temperature (°C) |
10°
|
10°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
10°
|
12°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
| Feels like temperature (°C) |
9°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
9°
|
11°
|
12°
|
13°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
13°
|
12°
|
13°
|
13°
|
14°
|
13°
|
| Wind direction and speed (mph) |
W
6
|
W
6
|
W
5
|
WSW
5
|
W
5
|
WSW
5
|
WSW
5
|
WSW
3
|
WSW
4
|
WSW
5
|
WSW
7
|
WSW
9
|
WSW
10
|
SW
11
|
SW
11
|
SW
13
|
SW
13
|
SW
13
|
SW
11
|
SW
11
|
SW
11
|
SW
11
|
WSW
11
|
WSW
11
|
| Wind gust (mph) |
17
|
16
|
15
|
16
|
15
|
15
|
14
|
13
|
16
|
19
|
23
|
24
|
27
|
29
|
29
|
30
|
30
|
30
|
29
|
28
|
28
|
28
|
28
|
27
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
M
|
M
|
M
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
| Humidity |
86%
|
88%
|
89%
|
91%
|
90%
|
91%
|
91%
|
92%
|
89%
|
85%
|
79%
|
74%
|
72%
|
72%
|
76%
|
83%
|
91%
|
95%
|
97%
|
97%
|
98%
|
98%
|
98%
|
98%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - | - |
Saturday (19 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 |
60%
|
50%
|
50%
|
50%
|
40%
|
40%
|
40%
|
40%
|
40%
|
30%
|
30%
|
30%
|
40%
|
40%
|
30%
|
30%
|
30%
|
30%
|
30%
|
30%
|
30%
|
30%
|
30%
|
30%
|
| Temperature (°C) |
15°
|
15°
|
15°
|
14°
|
15°
|
14°
|
14°
|
14°
|
15°
|
15°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
| Feels like temperature (°C) |
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
13°
|
14°
|
14°
|
15°
|
14°
|
15°
|
15°
|
15°
|
14°
|
15°
|
14°
|
14°
|
13°
|
14°
|
13°
|
13°
|
| Wind direction and speed (mph) |
WSW
11
|
WSW
11
|
WSW
10
|
WSW
10
|
WSW
9
|
WSW
10
|
WSW
9
|
WSW
10
|
WSW
10
|
WSW
10
|
WSW
10
|
WSW
10
|
WSW
13
|
WSW
11
|
WSW
13
|
WSW
13
|
WSW
13
|
WSW
11
|
WSW
11
|
WSW
10
|
WSW
10
|
WSW
10
|
WSW
10
|
WSW
9
|
| Wind gust (mph) |
26
|
27
|
25
|
24
|
23
|
22
|
22
|
22
|
23
|
24
|
26
|
27
|
28
|
28
|
29
|
29
|
28
|
26
|
25
|
25
|
25
|
25
|
25
|
22
|
| Visibility (description) |
P
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
P
|
M
|
M
|
G
|
G
|
G
|
G
|
G
|
G
|
M
|
M
|
P
|
P
|
P
|
M
|
| Humidity |
98%
|
98%
|
97%
|
96%
|
96%
|
96%
|
97%
|
96%
|
96%
|
93%
|
90%
|
86%
|
83%
|
82%
|
84%
|
83%
|
84%
|
86%
|
87%
|
90%
|
92%
|
93%
|
95%
|
95%
|
| UV | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Sunday (20 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 |
30%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
30%
|
30%
|
| Temperature (°C) |
14°
|
14°
|
14°
|
14°
|
15°
|
16°
|
16°
|
15°
|
15°
|
| Feels like temperature (°C) |
13°
|
13°
|
14°
|
13°
|
14°
|
15°
|
15°
|
15°
|
14°
|
| Wind direction and speed (mph) |
WSW
9
|
WSW
8
|
W
7
|
WSW
6
|
W
9
|
W
9
|
W
9
|
WSW
7
|
SW
6
|
| Wind gust (mph) |
22
|
21
|
18
|
20
|
23
|
24
|
22
|
16
|
14
|
| Visibility (description) |
M
|
M
|
P
|
M
|
G
|
G
|
VG
|
M
|
P
|
| Humidity |
95%
|
95%
|
95%
|
95%
|
86%
|
78%
|
79%
|
90%
|
96%
|
| UV | - | - | - | 1 | 2 | 3 | 1 | 1 | - |
Monday (21 September 2026)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
|
|
|
|
| Chance of precipitation |
30%
|
30%
|
40%
|
30%
|
30%
|
20%
|
20%
|
20%
|
| Temperature (°C) |
15°
|
14°
|
14°
|
16°
|
18°
|
18°
|
16°
|
15°
|
| Feels like temperature (°C) |
14°
|
14°
|
14°
|
16°
|
17°
|
18°
|
16°
|
15°
|
| Wind direction and speed (mph) |
SW
5
|
SW
5
|
SSW
5
|
SW
5
|
SW
7
|
SW
7
|
SW
5
|
SW
4
|
| Wind gust (mph) |
13
|
11
|
14
|
18
|
19
|
17
|
13
|
11
|
| Visibility (description) |
P
|
VP
|
VP
|
P
|
M
|
G
|
P
|
P
|
| Humidity |
97%
|
97%
|
98%
|
96%
|
92%
|
90%
|
95%
|
98%
|
| UV | - | - | 1 | 1 | 3 | 1 | 1 | - |
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Wales weather forecast
Headline:
Turning much fresher with bright spells and showers.
Today:
Cloudy start, with outbreaks of rain sinking south across Wales. Turning drier and brighter by mid-morning with sunny spells and isolated showers, mostly in the west. Staying warm but much less humid than in recent days. Maximum temperature 19 °C.
Tonight:
Showers continuing in places within the northwesterly breeze, gusty around coastal areas. Turning cloudier overnight, feeling cooler than previous nights. Minimum temperature 9 °C.
Wednesday:
Winds ease through the day as they shift from a northwesterly to a wester. Showers continuing across the region, however, these will be lighter. Temperatures around average for September. Maximum temperature 17 °C.
Outlook for Thursday to Saturday:
A wet and windy day for Thursday but things starting to turn more settled again by Friday. Westerly winds develop with the odd light shower. Temperature near normal.
Updated: