Llanberis (Gwynedd) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 10° Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 10° Celsius; -
Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 10° Celsius;
Maximum daytime temperature: 14° Celsius; Minimum nighttime temperature: 10° Celsius; -
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 7° Celsius;
-
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 7° Celsius; -
Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 7° Celsius;
Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 7° Celsius;
-
Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 5° Celsius;
Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 5° Celsius;
Cloudy changing to light rain by early evening.
Sunrise:
Sunset:
L UV
L Pollution
No pollen data.
7 day forecast for Llanberis
Today (18 October 2025)
| Time |
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%
|
10%
|
10%
|
20%
|
30%
|
60%
|
80%
|
90%
|
90%
|
90%
|
90%
|
| Temperature |
12°
|
12°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
11°
|
11°
|
10°
|
10°
|
| Feels like temperature (°C) |
9°
|
10°
|
10°
|
10°
|
10°
|
10°
|
10°
|
9°
|
8°
|
8°
|
7°
|
7°
|
7°
|
| Wind direction and speed |
SSE
13
|
SSE
13
|
SSE
13
|
SSE
14
|
SSE
14
|
SE
14
|
SE
15
|
SE
16
|
SE
17
|
SE
19
|
SE
20
|
SE
20
|
SE
20
|
| Wind gust (mph) |
26
|
26
|
25
|
25
|
25
|
25
|
26
|
27
|
28
|
29
|
29
|
31
|
32
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
M
|
M
|
M
|
| Humidity |
81%
|
76%
|
76%
|
75%
|
75%
|
75%
|
75%
|
76%
|
77%
|
83%
|
86%
|
87%
|
89%
|
| UV | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - |
Sunday (19 October 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 |
80%
|
80%
|
80%
|
60%
|
60%
|
60%
|
80%
|
90%
|
≥95%
|
≥95%
|
≥95%
|
≥95%
|
≥95%
|
90%
|
80%
|
60%
|
40%
|
30%
|
20%
|
10%
|
30%
|
50%
|
50%
|
50%
|
| Temperature (°C) |
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
12°
|
12°
|
12°
|
13°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
| Feels like temperature (°C) |
7°
|
7°
|
7°
|
7°
|
8°
|
8°
|
8°
|
8°
|
9°
|
9°
|
9°
|
10°
|
11°
|
11°
|
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
10°
|
10°
|
10°
|
10°
|
| Wind direction and speed (mph) |
SE
20
|
SSE
20
|
SSE
20
|
SSE
19
|
SSE
19
|
SSE
19
|
SSE
19
|
SSE
19
|
SSE
19
|
SSE
19
|
SSE
19
|
SSE
18
|
SSE
17
|
SSE
15
|
S
13
|
SSW
12
|
SSW
10
|
SSW
9
|
SSW
9
|
S
9
|
S
9
|
S
10
|
S
11
|
S
11
|
| Wind gust (mph) |
32
|
32
|
32
|
33
|
33
|
33
|
34
|
34
|
35
|
35
|
35
|
34
|
32
|
29
|
24
|
21
|
19
|
17
|
17
|
18
|
20
|
22
|
23
|
23
|
| Visibility (description) |
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
89%
|
90%
|
90%
|
90%
|
88%
|
88%
|
90%
|
90%
|
92%
|
92%
|
93%
|
93%
|
94%
|
95%
|
96%
|
93%
|
92%
|
92%
|
93%
|
93%
|
93%
|
93%
|
94%
|
94%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - |
Monday (20 October 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 |
50%
|
70%
|
80%
|
80%
|
90%
|
90%
|
90%
|
90%
|
90%
|
80%
|
80%
|
80%
|
70%
|
80%
|
80%
|
70%
|
60%
|
60%
|
60%
|
70%
|
70%
|
70%
|
60%
|
60%
|
| Temperature (°C) |
12°
|
12°
|
12°
|
12°
|
11°
|
12°
|
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
13°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
12°
|
12°
|
11°
|
11°
|
| Feels like temperature (°C) |
10°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
10°
|
10°
|
11°
|
11°
|
12°
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
| Wind direction and speed (mph) |
S
12
|
S
12
|
S
12
|
SSE
13
|
SSE
13
|
SSE
13
|
SSE
13
|
SSE
12
|
SSE
12
|
SSE
11
|
SSE
11
|
SSE
10
|
SSE
10
|
SSE
8
|
SSE
7
|
WSW
6
|
WNW
6
|
WNW
6
|
WNW
6
|
WNW
6
|
WNW
6
|
WNW
7
|
WNW
7
|
W
8
|
| Wind gust (mph) |
24
|
24
|
25
|
26
|
27
|
27
|
27
|
24
|
23
|
22
|
20
|
16
|
15
|
14
|
13
|
13
|
13
|
14
|
14
|
14
|
15
|
16
|
18
|
18
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
E
|
E
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
93%
|
93%
|
93%
|
92%
|
93%
|
93%
|
93%
|
93%
|
93%
|
92%
|
91%
|
91%
|
90%
|
89%
|
88%
|
91%
|
92%
|
94%
|
97%
|
97%
|
98%
|
98%
|
97%
|
97%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - |
Tuesday (21 October 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 |
60%
|
60%
|
60%
|
70%
|
60%
|
60%
|
60%
|
50%
|
60%
|
60%
|
60%
|
60%
|
60%
|
60%
|
60%
|
70%
|
70%
|
70%
|
60%
|
50%
|
40%
|
40%
|
40%
|
30%
|
| Temperature (°C) |
12°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
12°
|
11°
|
12°
|
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
9°
|
9°
|
| Feels like temperature (°C) |
10°
|
10°
|
10°
|
10°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
8°
|
8°
|
8°
|
| Wind direction and speed (mph) |
W
8
|
W
8
|
W
8
|
W
8
|
W
8
|
W
8
|
W
8
|
W
8
|
W
8
|
W
8
|
W
8
|
W
9
|
W
10
|
W
11
|
W
11
|
W
11
|
W
10
|
WNW
9
|
WNW
8
|
W
7
|
W
7
|
W
7
|
W
6
|
W
6
|
| Wind gust (mph) |
20
|
20
|
20
|
20
|
19
|
18
|
19
|
19
|
19
|
21
|
23
|
25
|
27
|
27
|
28
|
28
|
26
|
24
|
19
|
15
|
14
|
13
|
13
|
12
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
98%
|
97%
|
97%
|
97%
|
98%
|
97%
|
97%
|
97%
|
96%
|
96%
|
95%
|
94%
|
95%
|
93%
|
92%
|
89%
|
89%
|
89%
|
92%
|
91%
|
90%
|
88%
|
87%
|
86%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - |
Wednesday (22 October 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 |
30%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
20%
|
30%
|
30%
|
40%
|
50%
|
60%
|
60%
|
70%
|
70%
|
70%
|
80%
|
70%
|
70%
|
60%
|
60%
|
60%
|
| Temperature (°C) |
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
9°
|
10°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
10°
|
| Feels like temperature (°C) |
8°
|
8°
|
8°
|
8°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
8°
|
8°
|
8°
|
9°
|
9°
|
9°
|
9°
|
8°
|
8°
|
8°
|
8°
|
8°
|
8°
|
| Wind direction and speed (mph) |
WSW
5
|
WSW
5
|
SW
5
|
SSW
5
|
SSW
5
|
S
5
|
S
5
|
S
5
|
SSE
6
|
SE
7
|
SE
9
|
SSE
10
|
SE
11
|
SE
12
|
SE
12
|
SE
12
|
SE
12
|
SE
13
|
SSE
13
|
SSE
13
|
SSE
12
|
S
12
|
S
11
|
SSW
11
|
| Wind gust (mph) |
10
|
9
|
9
|
9
|
10
|
11
|
12
|
12
|
12
|
12
|
17
|
20
|
20
|
21
|
21
|
23
|
23
|
21
|
24
|
24
|
23
|
21
|
20
|
20
|
| Visibility (description) |
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
M
|
M
|
M
|
M
|
M
|
G
|
G
|
| Humidity |
86%
|
87%
|
86%
|
86%
|
87%
|
87%
|
86%
|
86%
|
87%
|
86%
|
86%
|
85%
|
84%
|
84%
|
85%
|
86%
|
88%
|
89%
|
91%
|
92%
|
92%
|
92%
|
93%
|
92%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - |
Thursday (23 October 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 |
60%
|
60%
|
60%
|
60%
|
70%
|
70%
|
60%
|
60%
|
50%
|
| Temperature (°C) |
10°
|
9°
|
9°
|
8°
|
9°
|
10°
|
10°
|
9°
|
8°
|
| Feels like temperature (°C) |
7°
|
7°
|
7°
|
6°
|
7°
|
8°
|
7°
|
6°
|
6°
|
| Wind direction and speed (mph) |
SSW
11
|
SSW
10
|
SW
9
|
SW
9
|
SW
9
|
WNW
11
|
WNW
12
|
WNW
11
|
WNW
10
|
| Wind gust (mph) |
20
|
12
|
14
|
16
|
17
|
20
|
22
|
21
|
19
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
| Humidity |
93%
|
92%
|
91%
|
89%
|
88%
|
81%
|
81%
|
86%
|
88%
|
| UV | - | - | - | 1 | 1 | 1 | 1 | - | - |
Friday (24 October 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
60%
|
50%
|
50%
|
60%
|
50%
|
50%
|
60%
|
50%
|
| Temperature (°C) |
8°
|
8°
|
8°
|
9°
|
10°
|
9°
|
8°
|
7°
|
| Feels like temperature (°C) |
6°
|
6°
|
6°
|
6°
|
7°
|
7°
|
5°
|
5°
|
| Wind direction and speed (mph) |
WNW
10
|
NW
10
|
NW
9
|
NNW
10
|
NNW
11
|
NNW
11
|
NNW
10
|
NNW
8
|
| Wind gust (mph) |
16
|
14
|
15
|
22
|
23
|
22
|
17
|
15
|
| Visibility (description) |
G
|
G
|
G
|
G
|
G
|
VG
|
G
|
G
|
| Humidity |
88%
|
88%
|
86%
|
84%
|
79%
|
76%
|
84%
|
84%
|
| UV | - | - | - | 1 | 1 | 1 | - | - |
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Wales weather forecast
Headline:
Largely dry today, wet and windy overnight and into Sunday.
Today:
Mainly dry today with bright spells developing and perhaps lengthier periods of hazy sunshine for a time. Thicker cloud arriving later with a few showery outbreaks of rain in the west by this evening. Breezy. Maximum temperature 14 °C.
Tonight:
South-easterly winds freshening this evening with showery outbreaks moving eastwards. Turning increasingly wet and windy overnight with some heavy and persistent rain by dawn. Coastal gales possible at times. Mild. Minimum temperature 8 °C.
Sunday:
A wet and windy morning with the heaviest rain easing by lunchtime. Pembrokeshire turning sunnier by early afternoon with brighter skies extending to the rest of Wales later. Winds easing. Maximum temperature 15 °C.
Outlook for Monday to Wednesday:
Windy on Monday with heavy and blustery showers and sunny spells. Fewer showers on Tuesday but staying changeable on Wednesday with further wet and windy weather possible. Temperatures around average.
Updated: