Craig Y Ffynnon (Gwynedd) weather

Forecast days

Yellow weather warning.
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M UV
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7 day forecast for Craig Y Ffynnon

Today (17 September 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 Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog
Chance of precipitation
90%
≥95%
≥95%
≥95%
≥95%
≥95%
90%
70%
40%
30%
20%
20%
20%
10%
10%
10%
10%
20%
20%
Temperature
10°
11°
11°
12°
12°
12°
13°
13°
13°
13°
13°
12°
11°
10°
10°
10°
10°
10°
Feels like temperature (°C)
Wind direction and speed
SSE
26
S
30
SSW
32
SW
33
SW
33
SW
31
WSW
30
WSW
29
WSW
27
WSW
26
WSW
25
WSW
25
WSW
25
WSW
24
WSW
22
WSW
20
WSW
19
WSW
20
WSW
19
Wind gust (mph)
39
42
42
41
41
40
39
39
39
38
38
38
37
34
32
30
28
28
26
Visibility
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
Humidity
98%
99%
99%
99%
99%
99%
100%
100%
98%
96%
94%
92%
92%
93%
93%
94%
94%
95%
95%
UV - 1 1 1 1 1 2 2 3 2 2 1 1 1 1 - - - -
Thursday (18 September 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 Fog Fog Fog Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Fog Fog Fog Fog Fog
Chance of precipitation
20%
20%
40%
60%
70%
80%
80%
80%
90%
90%
90%
80%
70%
70%
60%
50%
50%
50%
50%
50%
40%
40%
30%
30%
Temperature (°C)
10°
10°
10°
11°
11°
11°
12°
12°
12°
12°
13°
13°
13°
13°
13°
13°
13°
13°
13°
13°
12°
Feels like temperature (°C)
Wind direction and speed (mph)
WSW
19
WSW
18
WSW
17
SW
15
SW
13
SW
14
SW
16
SW
17
SW
18
SW
20
SW
22
SW
24
SW
26
SW
26
SW
26
SW
26
SW
28
SW
28
SW
27
SW
26
SW
25
SW
24
SW
24
SW
24
Wind gust (mph)
26
24
23
22
23
23
24
29
34
36
38
39
40
40
40
40
38
37
35
35
34
33
33
33
Visibility (description)
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
Humidity
96%
96%
97%
98%
98%
99%
100%
100%
100%
100%
100%
100%
99%
99%
98%
98%
97%
96%
96%
97%
98%
98%
97%
97%
UV - - - - - - 1 1 1 1 1 1 2 2 2 1 1 1 1 1 - - - -
Friday (19 September 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 Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Fog Light rain Light rain Light rain Light rain Light shower night Light rain Light rain Light rain Light rain
Chance of precipitation
20%
20%
20%
20%
20%
30%
30%
30%
40%
40%
40%
40%
40%
40%
50%
60%
70%
70%
60%
60%
60%
60%
60%
70%
Temperature (°C)
12°
12°
12°
12°
12°
11°
11°
11°
11°
11°
12°
12°
13°
13°
14°
14°
13°
13°
12°
11°
11°
11°
11°
11°
Feels like temperature (°C)
10°
10°
10°
10°
Wind direction and speed (mph)
SW
24
SW
23
SW
23
SSW
23
SSW
20
SSW
20
SSW
20
SSW
19
SSW
19
SSW
18
SSW
18
SSW
19
SSW
19
SSW
19
SSW
19
SSW
19
SW
20
SW
19
SW
18
SW
17
SW
16
SW
15
SW
14
SW
13
Wind gust (mph)
34
34
33
32
32
32
31
30
30
29
29
29
30
31
30
30
28
27
25
25
25
25
23
22
Visibility (description)
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
VP
Humidity
97%
97%
96%
96%
97%
97%
98%
99%
98%
98%
96%
95%
93%
92%
91%
92%
94%
97%
97%
98%
98%
98%
98%
98%
UV - - - - - - 1 1 1 1 2 1 2 2 2 1 1 1 1 1 - - - -
Saturday (20 September 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 Light rain Light rain Light rain Light rain Light rain Mist Light rain Light rain Light rain Light rain Light rain Light rain Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Sunny intervals Partly cloudy night Light shower night Light shower night Light shower night Light shower night
Chance of precipitation
70%
60%
60%
60%
50%
50%
50%
50%
60%
60%
50%
50%
60%
60%
70%
60%
60%
50%
50%
50%
60%
60%
70%
60%
Temperature (°C)
10°
10°
10°
10°
10°
10°
10°
10°
Feels like temperature (°C)
Wind direction and speed (mph)
SW
12
SW
12
WSW
11
WSW
11
WSW
10
WSW
10
WSW
9
WSW
9
WSW
10
WSW
12
W
13
W
14
W
15
W
16
W
17
W
17
WNW
19
WNW
19
WNW
18
WNW
17
WNW
15
W
14
W
15
WNW
15
Wind gust (mph)
21
20
18
16
16
14
13
13
16
18
20
22
25
25
26
28
26
24
22
20
21
22
23
23
Visibility (description)
VP
VP
VP
VP
VP
P
P
G
G
G
VG
VG
VG
VG
E
E
E
E
E
E
E
VG
VG
E
Humidity
98%
98%
98%
98%
98%
97%
97%
97%
96%
96%
94%
92%
91%
90%
87%
87%
87%
87%
89%
91%
92%
93%
94%
94%
UV - - - - - - 1 1 1 1 1 2 2 2 2 2 1 1 1 1 - - - -
Sunday (21 September 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 Light shower night Light rain Light rain Light rain Light rain Light rain Light shower night Light shower day Light shower day Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
60%
60%
60%
60%
60%
60%
60%
60%
50%
50%
40%
40%
50%
50%
50%
50%
50%
40%
40%
30%
30%
30%
30%
20%
Temperature (°C)
Feels like temperature (°C)
-1°
-1°
Wind direction and speed (mph)
WNW
15
WNW
15
NNW
17
NNW
17
N
17
N
16
N
16
N
16
N
16
N
18
N
18
N
19
N
19
N
19
N
19
N
19
N
21
N
20
NNE
19
NNE
16
NNE
14
NNE
13
NNE
14
NNE
14
Wind gust (mph)
22
27
26
25
20
20
22
21
25
29
28
28
29
31
31
31
30
28
25
22
21
19
19
20
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
94%
94%
95%
94%
94%
94%
93%
93%
92%
90%
85%
82%
76%
74%
71%
70%
71%
73%
75%
78%
82%
83%
83%
84%
UV - - - - - - - 1 1 1 2 3 2 3 3 2 2 1 1 1 - - - -
Monday (22 September 2025)
Time
00:00
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Cloudy Cloudy Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
10%
10%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
Temperature (°C)
Feels like temperature (°C)
-1°
-2°
-2°
-3°
-2°
Wind direction and speed (mph)
NNE
13
NNE
12
NE
10
NE
9
NE
14
NNE
16
NNE
19
NNE
14
NNE
11
Wind gust (mph)
22
16
14
19
24
24
23
15
12
Visibility (description)
VG
VG
G
G
VG
G
VG
VG
VG
Humidity
85%
86%
88%
90%
70%
59%
57%
75%
84%
UV - - - 1 2 4 1 1 -
Tuesday (23 September 2025)
Time
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Cloudy Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
<5%
<5%
<5%
10%
10%
10%
10%
10%
Temperature (°C)
Feels like temperature (°C)
-3°
-3°
-3°
-1°
Wind direction and speed (mph)
NE
10
NE
8
NE
8
NE
12
NE
16
NNE
18
NNE
13
NE
10
Wind gust (mph)
11
9
13
21
21
20
14
12
Visibility (description)
G
G
G
VG
VG
VG
VG
G
Humidity
89%
91%
93%
75%
63%
63%
82%
91%
UV - - 1 2 3 1 1 -

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WARNING
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Flood alerts in force for Wales
Flood alerts in force for Wales

Wales weather forecast

Headline:

Heavy and persistent rain.

Today:

Heaviest and most persistent rain clearing eastwards through the morning, though remaining cloudy with outbreaks of patchy rain and drizzle throughout the day, turning heavy at times over the hills. Breezy. Maximum temperature 19 °C.

Tonight:

Rain persisting throughout this evening and overnight, this turning heavy at times especially over the hills and mountains. Windy for all, especially along the coasts, and feeling humid. Minimum temperature 8 °C.

Thursday:

A cloudy, damp and mild start to Thursday. Cloud breaking in the east but drizzle persisting over the hills in the west. Staying windy. Maximum temperature 18 °C.

Outlook for Friday to Sunday:

Remaining changeable with showers or longer spells of rain at times. Some brighter periods are also likely, mainly on Friday. Temperatures close to average but turning colder later Sunday. Breezy.

Updated:

UK long range weather forecast

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