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Temperatures to build across the week, peaking on Thursday
High pressure builds across the UK this week, with temperatures expected to peak on Thursday.
Read moreYstrad Mynach (Caerphilly) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 9° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 9° Celsius; -
Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 26° Celsius; Minimum nighttime temperature: 10° Celsius;
-
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 10° Celsius; -
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 7° Celsius;
-
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 5° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 5° Celsius;
-
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 5° Celsius;
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 5° Celsius; -
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 6° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 6° Celsius;
-
Maximum daytime temperature: 18° Celsius;
Maximum daytime temperature: 18° Celsius;
8 day forecast for Ystrad Mynach
Today (30 April 2025)
| Time |
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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
10°
|
9°
|
11°
|
14°
|
16°
|
18°
|
19°
|
21°
|
21°
|
22°
|
23°
|
23°
|
23°
|
23°
|
22°
|
19°
|
16°
|
14°
|
13°
|
| Feels like temperature (°C) |
9°
|
9°
|
11°
|
14°
|
16°
|
18°
|
19°
|
19°
|
20°
|
21°
|
22°
|
23°
|
23°
|
23°
|
22°
|
19°
|
16°
|
14°
|
13°
|
| Wind direction and speed |
NE
4
|
NE
4
|
NE
3
|
NE
3
|
E
3
|
ESE
4
|
SE
5
|
SE
5
|
SE
5
|
SE
4
|
SSE
4
|
SSE
3
|
SSE
3
|
SSW
2
|
WNW
3
|
NW
4
|
NNW
3
|
NNE
3
|
N
3
|
| Wind gust (mph) |
9
|
8
|
6
|
6
|
9
|
13
|
14
|
14
|
12
|
11
|
8
|
6
|
5
|
6
|
7
|
7
|
7
|
6
|
5
|
| Visibility |
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
76%
|
75%
|
71%
|
64%
|
55%
|
54%
|
42%
|
40%
|
40%
|
40%
|
39%
|
39%
|
40%
|
54%
|
63%
|
62%
|
65%
|
70%
|
| UV | 1 | 1 | 1 | 1 | 2 | 3 | 5 | 5 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - |
Thursday (1 May 2025)
| 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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
20%
|
10%
|
| Temperature (°C) |
13°
|
13°
|
12°
|
11°
|
11°
|
11°
|
11°
|
12°
|
15°
|
17°
|
19°
|
21°
|
22°
|
23°
|
24°
|
25°
|
24°
|
24°
|
22°
|
21°
|
19°
|
16°
|
15°
|
14°
|
| Feels like temperature (°C) |
13°
|
12°
|
12°
|
11°
|
11°
|
10°
|
10°
|
12°
|
15°
|
17°
|
19°
|
20°
|
22°
|
23°
|
24°
|
24°
|
24°
|
23°
|
21°
|
20°
|
18°
|
16°
|
15°
|
14°
|
| Wind direction and speed (mph) |
N
3
|
NNE
3
|
NNE
3
|
NE
3
|
NE
3
|
NE
4
|
NE
3
|
NE
3
|
NE
2
|
ENE
3
|
E
3
|
ESE
4
|
SE
5
|
SE
5
|
S
5
|
S
5
|
SSW
5
|
S
6
|
SSW
6
|
SSW
6
|
SSW
4
|
S
4
|
S
3
|
E
3
|
| Wind gust (mph) |
5
|
6
|
6
|
7
|
7
|
7
|
7
|
5
|
5
|
7
|
10
|
11
|
11
|
11
|
10
|
12
|
14
|
15
|
15
|
12
|
9
|
7
|
6
|
7
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
69%
|
68%
|
70%
|
71%
|
72%
|
73%
|
73%
|
72%
|
66%
|
58%
|
53%
|
47%
|
42%
|
41%
|
41%
|
41%
|
41%
|
45%
|
54%
|
59%
|
67%
|
70%
|
75%
|
77%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 5 | 5 | 5 | 4 | 4 | 2 | 1 | 1 | 1 | 1 | - | - | - |
Friday (2 May 2025)
| Time |
00:00
|
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
20%
|
10%
|
<5%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
| Temperature (°C) |
14°
|
13°
|
12°
|
12°
|
15°
|
18°
|
20°
|
19°
|
15°
|
| Feels like temperature (°C) |
14°
|
13°
|
12°
|
11°
|
15°
|
18°
|
19°
|
19°
|
14°
|
| Wind direction and speed (mph) |
SW
4
|
W
4
|
WNW
4
|
NW
4
|
NNW
5
|
SW
5
|
WSW
6
|
NW
6
|
NNE
7
|
| Wind gust (mph) |
7
|
7
|
8
|
10
|
12
|
15
|
15
|
15
|
20
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
78%
|
83%
|
91%
|
87%
|
73%
|
62%
|
56%
|
62%
|
72%
|
| UV | - | - | - | 1 | 3 | 5 | 3 | 1 | - |
Saturday (3 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
10%
|
10%
|
20%
|
20%
|
20%
|
20%
|
| Temperature (°C) |
12°
|
11°
|
10°
|
15°
|
18°
|
19°
|
18°
|
14°
|
| Feels like temperature (°C) |
10°
|
9°
|
9°
|
13°
|
16°
|
17°
|
16°
|
12°
|
| Wind direction and speed (mph) |
NNE
9
|
NE
8
|
NE
8
|
NE
10
|
ENE
10
|
ENE
9
|
ENE
8
|
ENE
10
|
| Wind gust (mph) |
21
|
21
|
22
|
21
|
20
|
20
|
17
|
24
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
68%
|
74%
|
74%
|
63%
|
54%
|
51%
|
62%
|
62%
|
| UV | - | - | 1 | 4 | 5 | 2 | 1 | - |
Sunday (4 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
 |
| Chance of precipitation |
20%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
11°
|
9°
|
8°
|
11°
|
14°
|
15°
|
13°
|
10°
|
| Feels like temperature (°C) |
9°
|
7°
|
5°
|
8°
|
11°
|
12°
|
11°
|
8°
|
| Wind direction and speed (mph) |
ENE
10
|
ENE
9
|
ENE
10
|
ENE
12
|
ENE
13
|
ENE
11
|
ENE
11
|
ENE
8
|
| Wind gust (mph) |
24
|
23
|
27
|
29
|
28
|
26
|
24
|
20
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
68%
|
75%
|
76%
|
59%
|
49%
|
44%
|
48%
|
55%
|
| UV | - | - | 1 | 3 | 5 | 3 | 1 | - |
Monday (5 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
8°
|
6°
|
6°
|
8°
|
10°
|
12°
|
12°
|
10°
|
| Feels like temperature (°C) |
5°
|
4°
|
3°
|
5°
|
8°
|
10°
|
10°
|
8°
|
| Wind direction and speed (mph) |
ENE
8
|
NE
7
|
NE
8
|
ENE
10
|
NE
10
|
NE
9
|
NE
8
|
NE
5
|
| Wind gust (mph) |
19
|
17
|
22
|
23
|
22
|
20
|
17
|
10
|
| Visibility (description) |
VG
|
VG
|
G
|
G
|
G
|
G
|
G
|
VG
|
| Humidity |
62%
|
66%
|
67%
|
62%
|
56%
|
52%
|
54%
|
64%
|
| UV | - | - | 1 | 3 | 4 | 2 | 1 | - |
Tuesday (6 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
8°
|
6°
|
7°
|
10°
|
14°
|
16°
|
15°
|
12°
|
| Feels like temperature (°C) |
6°
|
5°
|
5°
|
9°
|
12°
|
14°
|
14°
|
11°
|
| Wind direction and speed (mph) |
ENE
5
|
NE
5
|
NE
5
|
ENE
8
|
ENE
8
|
ENE
8
|
ENE
7
|
ENE
5
|
| Wind gust (mph) |
7
|
6
|
14
|
17
|
17
|
15
|
13
|
9
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
68%
|
76%
|
71%
|
63%
|
54%
|
50%
|
54%
|
66%
|
| UV | - | - | 1 | 4 | 6 | 3 | 1 | - |
Wednesday (7 May 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
9°
|
7°
|
8°
|
12°
|
16°
|
17°
|
17°
|
12°
|
| Feels like temperature (°C) |
9°
|
6°
|
7°
|
11°
|
14°
|
15°
|
15°
|
12°
|
| Wind direction and speed (mph) |
NE
4
|
NE
4
|
NNE
4
|
ENE
7
|
ENE
8
|
ENE
8
|
ENE
7
|
ENE
5
|
| Wind gust (mph) |
6
|
5
|
12
|
15
|
15
|
15
|
12
|
8
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
76%
|
84%
|
78%
|
66%
|
56%
|
49%
|
53%
|
66%
|
| UV | - | - | 1 | 4 | 6 | 3 | 1 | - |
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Wales weather forecast
Headline:
Warm and sunny for all.
Today:
It will be another pleasant and dry day fro all of us. Early wispy cloud breaking to allow for lengthy periods of warm sunshine with temperatures rising well above the late-April norm. Generally light winds. Maximum temperature 26 °C.
Tonight:
Late evening sunshine, then dry overnight with largely clear skies. Small chance of mist patches around dawn. Cool for rural areas but very mild to the west of high ground. Minimum temperature 9 °C.
Thursday:
Fine start with widespread sunshine during the morning. Cloud spilling in during the afternoon with the low chance of isolated showers. The peak of temperatures during this current warm spell. Maximum temperature 27 °C.
Outlook for Friday to Sunday:
Feeling fresher from Friday as temperatures gradually drop, returning to the seasonal average over the weekend. Small chance of showers on Friday, otherwise mostly dry during this period. Turning breezier.
Updated:
UK long range weather forecast
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