Llanfaelog (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

Yellow weather warning.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
L Pollen

7 day forecast for Llanfaelog

Today (15 September 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 Light rain Light rain Light rain Light rain Light rain Overcast Overcast Overcast Overcast Overcast Cloudy Partly cloudy night Partly cloudy night
Chance of precipitation
80%
50%
70%
80%
60%
40%
20%
10%
10%
20%
10%
<5%
<5%
Temperature
14°
14°
14°
14°
14°
15°
15°
14°
14°
14°
14°
14°
14°
Feels like temperature (°C)
8°
8°
8°
8°
8°
8°
8°
8°
8°
8°
8°
8°
7°
Wind direction and speed
WSW
36
WSW
36
WSW
36
W
35
W
36
W
35
W
35
W
35
W
36
W
37
W
38
W
39
W
38
Wind gust (mph)
55
54
55
56
56
55
54
54
53
52
52
50
49
Visibility
E
E
E
E
E
E
E
E
E
E
E
E
E
Humidity
77%
79%
78%
78%
77%
77%
76%
76%
75%
74%
74%
75%
75%
UV 2 3 2 2 2 1 1 1 1 - - - -
Wind direction and speed
36
36
35
35
36
36
36
36
37
38
39
39
39
Height of waves offshore (m)
3.3
3.2
3.1
3.0
2.9
2.9
2.8
2.8
2.8
2.7
2.7
2.6
2.5
Period of waves offshore (s)
9
8
8
8
8
8
7
7
7
7
7
7
7
Direction of waves offshore
Tuesday (16 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 Cloudy Cloudy 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 intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Light rain Light rain Heavy rain Heavy rain Heavy rain
Chance of precipitation
<5%
10%
10%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
<5%
10%
20%
20%
20%
40%
60%
80%
≥95%
≥95%
≥95%
Temperature (°C)
14°
13°
13°
13°
13°
13°
13°
13°
13°
14°
14°
15°
15°
16°
16°
16°
16°
15°
15°
15°
14°
13°
13°
13°
Feels like temperature (°C)
7°
8°
8°
8°
8°
8°
8°
8°
8°
9°
10°
11°
12°
12°
12°
12°
12°
12°
11°
11°
11°
10°
10°
10°
Wind direction and speed (mph)
W
37
W
36
W
35
W
34
W
32
W
31
W
29
WNW
28
WNW
26
W
25
W
23
W
21
W
20
W
18
WSW
17
WSW
17
WSW
17
SW
17
SW
18
SW
19
SW
19
SW
18
SSW
17
S
18
Wind gust (mph)
48
47
46
44
42
41
39
37
36
34
32
30
28
27
26
26
25
25
24
25
24
24
22
24
Visibility (description)
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
M
M
P
Humidity
75%
75%
75%
75%
76%
76%
75%
75%
75%
75%
75%
75%
73%
69%
68%
67%
67%
68%
72%
74%
77%
83%
88%
91%
UV - - - - - - 1 1 1 1 3 3 4 4 3 2 1 1 1 1 - - - -
Wind direction and speed (mph)
38
36
35
34
32
31
30
28
27
25
23
21
19
18
17
16
16
17
18
19
19
18
17
18
Height of waves offshore (m)
2.5
2.5
2.4
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
1.1
1.1
1.2
1.1
1.0
0.9
Period of waves offshore (s)
7
7
7
7
7
7
7
7
6
6
6
6
6
6
6
5
5
5
5
5
5
5
5
5
Direction of waves offshore
Wednesday (17 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 Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Overcast Overcast Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Cloudy Partly cloudy night Cloudy Cloudy
Chance of precipitation
≥95%
≥95%
≥95%
≥95%
90%
70%
50%
30%
20%
10%
10%
10%
10%
10%
<5%
<5%
<5%
10%
10%
20%
20%
20%
30%
20%
Temperature (°C)
13°
13°
13°
14°
15°
16°
16°
16°
16°
16°
16°
17°
17°
17°
17°
17°
17°
17°
16°
16°
16°
16°
16°
16°
Feels like temperature (°C)
9°
9°
9°
9°
9°
10°
11°
11°
11°
11°
12°
12°
12°
12°
12°
12°
12°
12°
12°
11°
11°
11°
11°
11°
Wind direction and speed (mph)
S
21
SSE
24
SSE
27
S
30
S
32
SSW
32
SW
32
SW
30
SW
29
SW
27
SW
26
SW
25
SW
25
SW
25
SW
25
SSW
25
SSW
26
SSW
26
SW
26
SW
25
SW
25
SW
25
SW
25
SW
25
Wind gust (mph)
29
33
37
41
42
40
39
39
37
35
36
35
35
34
34
35
35
35
34
32
32
31
31
30
Visibility (description)
P
P
P
P
M
M
VG
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
Humidity
92%
92%
92%
92%
92%
93%
93%
93%
92%
90%
88%
86%
83%
82%
84%
85%
85%
85%
86%
87%
86%
86%
86%
86%
UV - - - - - - 1 1 1 1 2 3 3 4 3 3 2 1 1 1 - - - -
Wind direction and speed (mph)
21
24
27
29
32
31
31
30
29
27
26
26
25
25
25
25
26
26
25
25
25
25
25
25
Height of waves offshore (m)
0.9
0.9
1.0
1.1
1.3
1.6
1.9
2.2
2.3
2.3
2.4
2.4
2.4
2.4
2.4
2.3
2.3
2.2
2.2
2.1
2.0
1.9
1.8
1.8
Period of waves offshore (s)
5
5
5
5
6
6
7
8
8
8
8
8
9
9
8
8
8
8
8
8
8
8
8
7
Direction of waves offshore
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 Cloudy Overcast Overcast Light rain Light rain Light rain Light rain Light rain Light rain Overcast Overcast Overcast Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
30%
40%
50%
60%
60%
60%
50%
60%
50%
50%
50%
40%
30%
30%
20%
20%
20%
20%
20%
20%
30%
30%
30%
30%
Temperature (°C)
16°
16°
16°
16°
16°
16°
16°
15°
15°
16°
16°
16°
17°
17°
17°
17°
17°
17°
16°
16°
16°
16°
16°
16°
Feels like temperature (°C)
11°
11°
12°
11°
11°
11°
11°
11°
11°
12°
12°
12°
13°
13°
13°
13°
13°
13°
12°
12°
12°
12°
12°
12°
Wind direction and speed (mph)
SW
24
SSW
24
SSW
24
SSW
24
SSW
25
SSW
25
SSW
25
SSW
25
SSW
24
SSW
23
SSW
23
SW
23
SW
23
SW
23
SW
22
SW
22
SW
21
SSW
22
SSW
22
SSW
22
SSW
22
SSW
22
SSW
22
SW
22
Wind gust (mph)
28
26
27
27
27
27
26
25
28
33
24
26
24
25
22
22
24
26
26
26
26
27
27
26
Visibility (description)
E
E
E
VG
VG
VG
VG
VG
VG
VG
VG
E
E
E
E
E
E
E
E
E
E
E
E
E
Humidity
87%
90%
90%
91%
91%
91%
92%
92%
92%
92%
92%
91%
90%
89%
89%
86%
86%
87%
86%
86%
85%
86%
86%
85%
UV - - - - - - 1 1 1 1 1 2 3 3 3 2 2 1 1 1 - - - -
Wind direction and speed (mph)
24
24
24
24
25
25
25
25
24
24
23
23
23
23
22
22
21
22
22
22
22
22
22
22
Height of waves offshore (m)
1.7
1.6
1.5
1.4
1.4
1.3
1.2
1.1
1.1
1.0
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.8
0.8
0.8
1.0
Period of waves offshore (s)
7
7
7
6
6
7
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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 Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Light rain Light rain Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
Chance of precipitation
30%
40%
40%
40%
40%
40%
40%
40%
40%
40%
40%
40%
50%
50%
50%
50%
50%
50%
50%
50%
50%
40%
40%
40%
Temperature (°C)
15°
15°
15°
15°
15°
14°
14°
14°
14°
15°
15°
16°
16°
16°
16°
16°
16°
15°
15°
15°
14°
14°
14°
14°
Feels like temperature (°C)
12°
12°
11°
12°
11°
11°
11°
11°
11°
12°
12°
13°
13°
13°
13°
13°
13°
13°
12°
12°
12°
12°
12°
11°
Wind direction and speed (mph)
SW
22
SW
21
SW
19
SW
18
SW
18
SSW
17
SSW
17
SW
16
SW
17
SSW
16
SSW
16
SSW
17
SSW
17
SSW
17
SSW
17
SSW
17
SSW
17
SSW
16
SSW
16
SSW
15
SSW
15
SSW
15
SW
15
SW
16
Wind gust (mph)
24
24
24
24
23
21
21
18
17
19
19
19
20
20
21
21
22
21
20
19
19
19
17
17
Visibility (description)
E
E
E
E
E
E
E
E
E
E
E
E
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
85%
85%
85%
84%
82%
83%
84%
84%
83%
84%
82%
84%
83%
83%
81%
83%
84%
84%
84%
85%
86%
86%
85%
84%
UV - - - - - - 1 1 1 1 2 2 3 2 2 1 1 1 1 1 - - - -
Wind direction and speed (mph)
21
21
20
19
18
17
17
16
16
16
16
17
17
17
17
17
17
16
16
15
15
15
15
15
Height of waves offshore (m)
1.2
1.4
1.3
1.3
1.2
1.2
1.3
1.3
1.3
1.3
1.3
1.2
1.2
1.1
1.1
1.1
1.1
1.0
1.0
0.9
0.9
0.8
0.8
1.0
Period of waves offshore (s)
9
9
9
9
9
9
9
9
8
8
7
8
8
9
9
9
9
9
9
9
9
9
9
9
Direction of waves offshore
Saturday (20 September 2025)
Time
00:00
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Cloudy Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
40%
40%
40%
40%
40%
40%
40%
40%
40%
Temperature (°C)
14°
14°
13°
12°
14°
15°
15°
13°
12°
Feels like temperature (°C)
11°
11°
10°
10°
12°
12°
12°
10°
9°
Wind direction and speed (mph)
SW
15
SW
15
WSW
13
W
13
W
14
W
16
W
16
WNW
16
NW
16
Wind gust (mph)
17
18
17
15
18
21
22
21
21
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
84%
83%
79%
80%
79%
76%
74%
75%
74%
UV - - - 1 2 4 2 1 -
Wind direction and speed (mph)
15
15
13
13
14
16
16
16
16
Height of waves offshore (m)
1.2
1.4
1.2
1.0
0.9
0.7
0.7
0.7
0.6
Period of waves offshore (s)
9
9
9
8
8
6
7
7
8
Direction of waves offshore
Sunday (21 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
50%
40%
40%
30%
30%
30%
30%
30%
Temperature (°C)
11°
11°
10°
13°
13°
13°
12°
11°
Feels like temperature (°C)
8°
8°
7°
10°
10°
10°
9°
8°
Wind direction and speed (mph)
NW
16
NNW
16
NNW
16
N
16
N
17
NNW
18
N
17
NNE
14
Wind gust (mph)
21
23
21
22
24
24
20
17
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
76%
75%
75%
73%
69%
68%
67%
68%
UV - - 1 2 4 2 1 -
Wind direction and speed (mph)
16
 – – – – – – –
Height of waves offshore (m)
0.6
 – – – – – – –
Period of waves offshore (s)
8
 – – – – – – –
Direction of waves offshore
–
–
–
–
–
–
–

Tide times

Monday 15 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 15 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 15 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 15 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 16 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 16 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 16 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 16 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 17 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 17 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 17 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 17 September

Tide times and heights are from Porth Trecastell tidal station which is 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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 1.1 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

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Forecast for 11:00, Mon
Updated 09:00 (UTC+1) on Mon 15 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:

Very windy today with showers, drier and less windy tomorrow.

Today:

Very windy with gales, locally severe in coastal and upland areas, especially during the morning. Scattered showers, heaviest and most frequent in the north, but occasional bright spells too. Feeling cool. Maximum temperature 16 °C.

Tonight:

Windy this evening with coastal gales at first but winds gradually easing overnight. Scattered showers, some heavy this evening, but many places turning dry overnight. Staying fairly mild. Minimum temperature 9 °C.

Tuesday:

A drier day to come albeit still the chance of a few showers. Sunny spells are likely through the morning, but any sunshine turning hazy through the afternoon. Still breezy. Maximum temperature 17 °C.

Outlook for Wednesday to Friday:

Remaining changeable and often windy with rain at times. Some brighter periods are also likely. A chance of occasional coastal gales. Temperatures fairly close to the seasonal average.

Updated:

UK long range weather forecast

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