Nefyn (Gwynedd) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius; -
Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 15 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius;
-
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius; -
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 13 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: 17° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 12 degrees Celsius;
Sunny intervals changing to partly cloudy by early evening.
Sunrise:
Sunset:
M UV
L Pollution
No pollen data.
7 day forecast for Nefyn
Today (19 September 2026)
| Time |
17:00
|
18:00
|
19:00
|
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|---|---|---|
| Weather symbols |  |
|
 |
|
|
 |
|
| Chance of precipitation |
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
17°
|
17°
|
16°
|
15°
|
15°
|
14°
|
14°
|
| Feels like temperature (°C) |
15°
|
15°
|
14°
|
13°
|
13°
|
12°
|
12°
|
| Wind direction and speed |
WSW
13
|
SW
11
|
SW
11
|
WSW
11
|
W
11
|
W
11
|
W
11
|
| Wind gust (mph) |
27
|
27
|
26
|
27
|
28
|
29
|
29
|
| Visibility |
VG
|
VG
|
VG
|
G
|
G
|
VG
|
VG
|
| Humidity |
74%
|
76%
|
82%
|
81%
|
75%
|
74%
|
74%
|
| UV | 1 | 1 | 1 | - | - | - | - |
Sunday (20 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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
14°
|
13°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
12°
|
13°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
13°
|
12°
|
13°
|
13°
|
13°
|
| Feels like temperature (°C) |
12°
|
11°
|
11°
|
11°
|
11°
|
10°
|
10°
|
10°
|
10°
|
11°
|
11°
|
12°
|
13°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
12°
|
11°
|
11°
|
12°
|
12°
|
| Wind direction and speed (mph) |
W
11
|
W
11
|
W
11
|
W
11
|
WNW
11
|
WNW
11
|
WNW
11
|
WNW
11
|
WNW
13
|
WNW
13
|
WNW
13
|
WNW
11
|
WNW
10
|
WNW
9
|
WNW
8
|
WNW
8
|
W
7
|
WSW
7
|
SW
6
|
S
6
|
S
7
|
S
7
|
S
7
|
S
7
|
| Wind gust (mph) |
28
|
28
|
27
|
28
|
27
|
27
|
26
|
25
|
24
|
24
|
22
|
19
|
17
|
15
|
14
|
14
|
14
|
14
|
14
|
15
|
16
|
17
|
17
|
17
|
| Visibility (description) |
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
74%
|
74%
|
74%
|
74%
|
75%
|
73%
|
73%
|
72%
|
70%
|
66%
|
64%
|
62%
|
59%
|
57%
|
57%
|
56%
|
57%
|
60%
|
65%
|
79%
|
78%
|
78%
|
79%
|
81%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | - | - | - | - |
Monday (21 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 |
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
17°
|
17°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
17°
|
16°
|
15°
|
15°
|
15°
|
15°
|
| Feels like temperature (°C) |
12°
|
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
14°
|
15°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
15°
|
15°
|
15°
|
14°
|
14°
|
| Wind direction and speed (mph) |
S
8
|
S
8
|
S
9
|
S
9
|
S
9
|
S
9
|
S
9
|
SSW
9
|
SSW
9
|
SSW
9
|
SW
9
|
SW
9
|
SW
9
|
SW
10
|
SW
10
|
SW
9
|
SW
9
|
SSW
9
|
SSW
8
|
S
8
|
S
7
|
S
7
|
S
8
|
S
7
|
| Wind gust (mph) |
18
|
19
|
20
|
20
|
21
|
21
|
20
|
20
|
19
|
20
|
19
|
19
|
19
|
19
|
19
|
18
|
17
|
17
|
17
|
16
|
16
|
15
|
15
|
14
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
G
|
G
|
M
|
P
|
P
|
M
|
P
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
M
|
M
|
M
|
M
|
| Humidity |
81%
|
82%
|
84%
|
85%
|
86%
|
87%
|
91%
|
93%
|
93%
|
92%
|
91%
|
87%
|
86%
|
86%
|
85%
|
85%
|
85%
|
84%
|
86%
|
92%
|
95%
|
96%
|
95%
|
96%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Tuesday (22 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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
16°
|
17°
|
17°
|
18°
|
18°
|
19°
|
19°
|
19°
|
18°
|
17°
|
16°
|
15°
|
15°
|
15°
|
15°
|
| Feels like temperature (°C) |
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
15°
|
16°
|
16°
|
17°
|
17°
|
17°
|
18°
|
18°
|
17°
|
17°
|
15°
|
14°
|
14°
|
14°
|
14°
|
| Wind direction and speed (mph) |
S
7
|
S
7
|
SSE
7
|
SSE
7
|
SSE
7
|
SSE
7
|
SSE
7
|
SSE
8
|
SSE
8
|
S
8
|
S
9
|
S
10
|
S
10
|
S
10
|
SSW
10
|
SSW
9
|
SSW
9
|
SSW
8
|
SSW
7
|
S
7
|
SSE
8
|
S
7
|
SSE
8
|
S
8
|
| Wind gust (mph) |
14
|
14
|
14
|
14
|
14
|
14
|
14
|
14
|
16
|
16
|
17
|
18
|
18
|
17
|
17
|
17
|
16
|
16
|
15
|
15
|
16
|
16
|
17
|
20
|
| Visibility (description) |
M
|
M
|
P
|
M
|
M
|
M
|
M
|
M
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
M
|
M
|
| Humidity |
96%
|
96%
|
96%
|
96%
|
95%
|
95%
|
95%
|
95%
|
93%
|
87%
|
85%
|
83%
|
81%
|
79%
|
77%
|
75%
|
75%
|
77%
|
83%
|
91%
|
94%
|
95%
|
95%
|
95%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | - | - | - | - |
Wednesday (23 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%
|
10%
|
20%
|
30%
|
40%
|
60%
|
50%
|
40%
|
40%
|
40%
|
30%
|
20%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
15°
|
14°
|
13°
|
12°
|
12°
|
11°
|
11°
|
| Feels like temperature (°C) |
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
12°
|
11°
|
10°
|
10°
|
10°
|
10°
|
| Wind direction and speed (mph) |
S
8
|
S
8
|
S
8
|
SSW
9
|
SSW
9
|
SW
9
|
W
11
|
NW
11
|
NW
11
|
NW
11
|
NW
13
|
NNW
14
|
NNW
15
|
NNW
15
|
NNW
15
|
NNW
15
|
NNW
13
|
NNW
11
|
NNW
10
|
N
9
|
N
9
|
NNE
8
|
NE
7
|
ENE
7
|
| Wind gust (mph) |
20
|
21
|
21
|
22
|
24
|
25
|
28
|
26
|
27
|
28
|
28
|
26
|
27
|
27
|
26
|
25
|
23
|
21
|
19
|
16
|
15
|
12
|
11
|
10
|
| Visibility (description) |
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
G
|
G
|
VG
|
| Humidity |
94%
|
93%
|
93%
|
93%
|
93%
|
94%
|
93%
|
91%
|
89%
|
85%
|
80%
|
76%
|
68%
|
66%
|
65%
|
65%
|
63%
|
63%
|
65%
|
72%
|
77%
|
81%
|
82%
|
84%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | - | - | - | - |
Thursday (24 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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
20%
|
30%
|
| Temperature (°C) |
11°
|
11°
|
10°
|
11°
|
14°
|
16°
|
16°
|
15°
|
15°
|
| Feels like temperature (°C) |
10°
|
10°
|
9°
|
10°
|
12°
|
13°
|
13°
|
13°
|
13°
|
| Wind direction and speed (mph) |
ENE
6
|
E
6
|
SE
5
|
SSE
6
|
S
9
|
S
13
|
S
14
|
S
12
|
SSW
11
|
| Wind gust (mph) |
11
|
8
|
8
|
13
|
25
|
26
|
25
|
22
|
23
|
| Visibility (description) |
VG
|
G
|
G
|
G
|
VG
|
VG
|
G
|
G
|
G
|
| Humidity |
86%
|
88%
|
91%
|
92%
|
75%
|
66%
|
67%
|
79%
|
86%
|
| UV | - | - | - | 1 | 2 | 3 | 1 | 1 | - |
Friday (25 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%
|
40%
|
30%
|
30%
|
20%
|
20%
|
20%
|
20%
|
| Temperature (°C) |
14°
|
14°
|
14°
|
15°
|
16°
|
16°
|
14°
|
14°
|
| Feels like temperature (°C) |
12°
|
13°
|
12°
|
13°
|
14°
|
15°
|
13°
|
12°
|
| Wind direction and speed (mph) |
SSW
13
|
SSW
11
|
SW
10
|
SW
10
|
WSW
10
|
WSW
9
|
SSW
8
|
SSW
8
|
| Wind gust (mph) |
22
|
20
|
20
|
21
|
20
|
17
|
10
|
11
|
| Visibility (description) |
M
|
M
|
M
|
G
|
G
|
G
|
G
|
M
|
| Humidity |
88%
|
92%
|
93%
|
87%
|
75%
|
71%
|
86%
|
93%
|
| UV | - | - | 1 | 2 | 3 | 1 | 1 | - |
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Flood alerts in force for Wales
Flood alerts in force for Wales
Wales weather forecast
Headline:
Largely fine on Sunday with lighter winds and some sunshine.
This Evening and Tonight:
Any showery rain in the south soon clearing to leave a fine evening for most. Largely dry overnight with clear periods. Staying quite breezy on northern coasts but winds becoming light elsewhere and turning rather cool in rural inland locations. Minimum temperature 8 °C.
Sunday:
A fine day with a mixture of cloud and sunny spells, with some prolonged periods of sunshine developing in places. Much lighter winds than on Saturday and feeling pleasantly warm. Maximum temperature 19 °C.
Outlook for Monday to Wednesday:
Cloudier on Monday with a little drizzle possible for a time, brighter later. More widely brighter on Tuesday with warm periods of sunshine. Breezier on Wednesday, with some rain possible.
Updated: