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Llanfaelog - Porth Nobla (Beach) (Isle of Anglesey) weather

Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.

Forecast days

Overcast.
Beach safety today
Large, powerful waves and strong wind
  • • only experts should take part in water activities

Tide: Next low tide (1.8m) at

Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
No pollen data.

7 day forecast for Llanfaelog - Porth Nobla (Beach)

Today (18 September 2025)
Time
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Light rain
Chance of precipitation
30%
10%
30%
30%
40%
30%
50%
40%
60%
Temperature
17°
17°
17°
17°
17°
17°
17°
17°
17°
Feels like temperature (°C)
13°
13°
12°
12°
12°
12°
11°
11°
11°
Wind direction and speed
SSW
25
SSW
26
SSW
27
SSW
28
SSW
28
SSW
29
SSW
29
SSW
29
SSW
29
Wind gust (mph)
37
39
40
41
42
42
41
40
39
Visibility
G
VG
VG
VG
VG
VG
VG
G
G
Humidity
93%
93%
93%
93%
93%
93%
93%
94%
94%
UV 1 1 1 1 1 - - - -
Wind direction and speed
25
26
27
28
28
29
30
30
30
Height of waves offshore (m)
1.5
1.7
1.8
2.0
2.1
2.1
2.1
2.1
2.0
Period of waves offshore (s)
6
6
7
7
7
7
7
8
8
Direction of waves offshore
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 Light rain Light rain Light rain Light rain Light rain Light rain Heavy rain Heavy rain Heavy 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 Heavy rain Light rain
Chance of precipitation
60%
70%
70%
80%
80%
80%
80%
90%
90%
90%
80%
80%
80%
70%
70%
80%
70%
80%
80%
80%
80%
80%
80%
90%
Temperature (°C)
17°
17°
17°
17°
17°
16°
16°
16°
16°
16°
16°
16°
16°
16°
16°
16°
16°
16°
16°
15°
15°
15°
15°
15°
Feels like temperature (°C)
11°
11°
12°
12°
12°
12°
12°
12°
12°
12°
13°
14°
14°
14°
14°
14°
14°
14°
14°
13°
13°
13°
13°
13°
Wind direction and speed (mph)
SSW
29
SSW
29
SSW
29
SSW
28
SSW
28
SSW
27
SSW
26
SSW
24
SSW
23
SSW
21
SSW
19
SW
17
SW
16
SW
15
SW
14
SSW
15
SW
14
SW
13
SW
13
SW
13
SSW
12
SSW
12
SW
11
SW
10
Wind gust (mph)
38
38
36
35
33
31
28
26
23
23
19
19
17
15
15
16
17
15
14
15
16
14
13
11
Visibility (description)
G
G
G
G
M
G
G
M
M
M
M
G
M
G
VG
G
G
G
G
M
M
M
M
M
Humidity
94%
95%
95%
94%
93%
93%
93%
93%
93%
93%
93%
94%
93%
93%
92%
93%
92%
92%
91%
92%
92%
92%
92%
92%
UV - - - - - - 1 1 1 1 1 1 2 1 2 1 1 1 1 1 - - - -
Wind direction and speed (mph)
30
29
29
29
28
27
26
24
22
20
18
16
14
13
13
14
13
12
12
12
11
11
10
10
Height of waves offshore (m)
2.0
1.9
1.9
1.9
1.8
1.8
1.7
1.7
1.7
1.7
1.7
1.6
1.6
1.6
1.6
1.6
1.5
1.5
1.4
1.3
1.2
1.1
1.0
0.9
Period of waves offshore (s)
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
Direction of waves offshore
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 Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain
Chance of precipitation
80%
90%
90%
90%
80%
80%
80%
80%
80%
80%
80%
80%
80%
80%
70%
70%
80%
80%
80%
80%
80%
80%
80%
80%
Temperature (°C)
14°
14°
14°
14°
14°
13°
13°
13°
13°
13°
14°
14°
14°
14°
14°
15°
15°
14°
14°
13°
13°
12°
12°
12°
Feels like temperature (°C)
13°
13°
13°
12°
12°
12°
12°
11°
11°
11°
12°
12°
12°
12°
11°
11°
11°
11°
10°
9°
9°
8°
8°
8°
Wind direction and speed (mph)
SW
10
SSW
9
ENE
9
NNE
9
NE
8
NE
9
NE
9
ENE
10
ENE
11
ENE
12
ENE
12
ENE
13
ENE
14
NE
16
ENE
17
E
19
ENE
20
SSE
21
W
22
WNW
24
NNW
25
NNW
27
NNW
27
NNW
26
Wind gust (mph)
11
10
11
12
11
11
12
11
13
15
17
20
21
25
26
30
30
33
33
33
28
29
30
31
Visibility (description)
M
M
M
M
M
M
M
M
M
M
M
M
M
M
G
G
VG
VG
VG
E
E
E
E
E
Humidity
92%
92%
92%
92%
92%
92%
92%
92%
92%
92%
91%
90%
91%
90%
89%
87%
86%
84%
83%
83%
85%
84%
84%
82%
UV - - - - - - - 1 1 1 1 1 2 2 2 2 1 1 1 1 - - - -
Wind direction and speed (mph)
9
9
9
9
9
9
10
10
11
12
13
15
16
18
19
20
21
23
24
25
26
26
27
26
Height of waves offshore (m)
0.8
0.8
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.5
0.5
0.5
0.5
0.6
0.6
0.7
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.2
Period of waves offshore (s)
7
8
8
8
8
9
9
9
9
9
9
9
8
8
8
7
7
6
6
6
6
5
5
5
Direction of waves offshore
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 rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower night Light shower night Light shower night Light shower night Light shower night
Chance of precipitation
70%
70%
80%
90%
90%
90%
80%
80%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
70%
60%
60%
Temperature (°C)
12°
11°
11°
11°
10°
10°
10°
10°
10°
10°
11°
12°
12°
13°
13°
13°
13°
12°
12°
11°
10°
10°
10°
10°
Feels like temperature (°C)
7°
7°
7°
7°
7°
6°
6°
6°
6°
7°
7°
8°
9°
9°
9°
9°
9°
9°
9°
8°
7°
7°
7°
7°
Wind direction and speed (mph)
NNW
25
N
25
NNW
24
NNW
23
N
23
N
23
N
22
N
22
N
21
N
21
N
21
N
20
N
20
N
20
N
19
N
19
N
19
N
18
N
19
N
18
NNE
17
NNE
17
NNE
17
NNE
16
Wind gust (mph)
33
34
34
30
31
32
36
36
36
34
32
30
29
29
31
32
30
31
30
30
33
30
26
25
Visibility (description)
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
Humidity
82%
83%
81%
82%
84%
83%
82%
81%
77%
75%
73%
69%
70%
68%
67%
69%
67%
68%
68%
69%
71%
71%
73%
72%
UV - - - - - - - 1 1 1 2 2 3 2 2 2 1 1 1 1 - - - -
Wind direction and speed (mph)
26
26
26
25
25
24
23
21
21
20
19
19
19
20
20
20
20
20
19
19
18
17
17
16
Height of waves offshore (m)
1.1
1.0
1.1
1.3
1.4
1.3
1.2
1.1
1.0
0.9
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.6
0.6
0.5
0.5
0.5
0.5
Period of waves offshore (s)
5
5
6
6
7
7
6
6
6
6
6
6
6
6
6
6
5
5
5
5
5
5
6
6
Direction of waves offshore
Monday (22 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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
50%
50%
40%
40%
30%
30%
30%
30%
20%
20%
20%
20%
20%
10%
20%
20%
20%
20%
20%
20%
20%
20%
20%
30%
Temperature (°C)
10°
10°
10°
10°
9°
9°
9°
9°
9°
11°
12°
12°
13°
13°
13°
13°
13°
13°
12°
10°
9°
9°
9°
9°
Feels like temperature (°C)
7°
7°
7°
7°
6°
6°
6°
6°
6°
8°
9°
9°
10°
10°
10°
10°
10°
10°
9°
8°
7°
7°
7°
7°
Wind direction and speed (mph)
NNE
16
NE
14
NNE
14
NNE
14
NNE
14
NNE
13
NNE
13
NNE
13
NNE
13
NNE
13
NNE
15
NNE
15
NNE
15
NNE
15
NNE
15
N
15
NNE
15
N
14
N
13
N
12
NNE
11
NNE
10
NNE
10
NNE
9
Wind gust (mph)
25
25
25
24
24
25
25
24
24
24
24
24
24
23
21
21
21
20
19
17
17
18
17
16
Visibility (description)
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
Humidity
72%
72%
71%
70%
71%
70%
70%
68%
67%
65%
61%
58%
57%
57%
56%
56%
56%
57%
56%
57%
59%
60%
61%
62%
UV - - - - - - - 1 1 1 2 3 3 3 3 2 2 1 1 1 - - - -
Wind direction and speed (mph)
16
16
16
15
15
15
14
14
14
15
15
15
15
15
15
15
14
14
13
12
11
10
9
9
Height of waves offshore (m)
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
Period of waves offshore (s)
6
6
6
7
7
7
7
8
7
7
7
7
7
6
6
6
6
6
6
6
6
6
6
7
Direction of waves offshore
Tuesday (23 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 Cloudy Cloudy Cloudy Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
30%
20%
20%
10%
10%
10%
<5%
10%
<5%
Temperature (°C)
9°
9°
8°
8°
12°
14°
14°
11°
9°
Feels like temperature (°C)
7°
7°
6°
5°
10°
11°
12°
9°
7°
Wind direction and speed (mph)
NE
9
NNE
9
NNE
8
NE
9
NNE
10
N
12
N
11
NNE
11
NE
9
Wind gust (mph)
16
14
12
12
12
12
14
13
11
Visibility (description)
E
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
63%
64%
64%
65%
63%
62%
62%
65%
66%
UV - - - 1 2 3 2 1 -
Wind direction and speed (mph)
9
8
8
9
11
12
12
11
9
Height of waves offshore (m)
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
Period of waves offshore (s)
9
10
10
10
10
10
10
12
12
Direction of waves offshore
Wednesday (24 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 Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
Temperature (°C)
9°
8°
8°
13°
15°
15°
11°
9°
Feels like temperature (°C)
7°
6°
5°
11°
13°
13°
9°
7°
Wind direction and speed (mph)
NE
8
ENE
7
E
7
E
9
E
9
NNE
10
NNE
10
ENE
8
Wind gust (mph)
9
9
10
10
11
12
11
9
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
66%
66%
67%
68%
65%
63%
64%
67%
UV - - 1 2 3 1 1 -
Wind direction and speed (mph)
8
 – – – – – – –
Height of waves offshore (m)
0.1
 – – – – – – –
Period of waves offshore (s)
12
 – – – – – – –
Direction of waves offshore
–
–
–
–
–
–
–

Tide times

Thursday 18 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Thursday 18 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Thursday 18 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Thursday 18 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Friday 19 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Friday 19 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Friday 19 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Friday 19 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Saturday 20 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Saturday 20 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Saturday 20 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Saturday 20 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Sunday 21 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Sunday 21 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Sunday 21 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Sunday 21 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Monday 22 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Monday 22 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Monday 22 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Monday 22 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Tuesday 23 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Tuesday 23 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Tuesday 23 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Tuesday 23 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Wednesday 24 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Wednesday 24 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Wednesday 24 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times

Wednesday 24 September

Tide times and heights are from Porth Trecastell tidal station which is 0.8 miles away. So times may be different at this beach. What does this mean?

Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

Tide times explained
News

Wind and rain marking a change in the UK weather

Warnings have been issued as the weather across the UK becomes increasingly mild but wet and windy.

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Llanfaelog - Porth Nobla (Beach) weather map

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Forecast for 15:00, Thu
Updated 12:00 (UTC+1) on Thu 18 Sep 2025
WARNING
Flood alerts icon
Flood alerts in force for Wales
Flood alerts in force for Wales

Natural Resources Wales

Updated:

Wales weather forecast

Headline:

Often cloudy with patchy rain at times.

Today:

A cloudy, damp and mild start to Thursday. Cloud breaking in the east with some brighter spells, but drizzle persisting over the hills in the west. Staying windy and humid. Maximum temperature 20 °C.

Tonight:

Remaining cloudy in the west overnight with drizzle persisting over hills. Drier in the east with a few clear spells. Windy in the northwest, but winds easing elsewhere by dawn. Minimum temperature 12 °C.

Friday:

Cloudy in the west with rain and drizzle, turning heavy at times over hills and mountains. Some brighter and drier intervals in the east. Winds continue to ease. Feeling humid. Maximum temperature 20 °C.

Outlook for Saturday to Monday:

Remaining changeable with showers or longer spells of rain on Saturday. Turning colder through Sunday as showery rain clears southeast, leaving sunny spells and showers on Monday.

Updated:

UK long range weather forecast

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