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.
Read moreCemlyn (Beach) (Isle of Anglesey) weather
Find a forecast
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.
- Head to a lifeguarded beach; check the RNLI lifeguarded beach tool
- Follow RNLI Float to Live advice if you find yourself struggling in the water
- Know what to do if you get caught in a rip current (RNLI)
- Check the tide times to avoid getting cut off by the tide coming in
- Call 999 and ask for the coastguard in an emergency
- Learn more about staying safe at the beach
Forecast days
-
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 14° Celsius; -
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 14° Celsius; -
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 14° Celsius; -
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 14° Celsius;
-
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 14° Celsius; -
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 14° Celsius;
-
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 13° Celsius;
7 day forecast for Cemlyn (Beach)
Today (20 July 2025)
| Time |
20:00
|
21:00
|
22:00
|
23:00
|
|---|---|---|---|---|
| Weather symbols |  |
 |
 |
|
| Chance of precipitation |
30%
|
70%
|
80%
|
80%
|
| Temperature |
16°
|
16°
|
15°
|
15°
|
| Feels like temperature (°C) |
16°
|
15°
|
15°
|
14°
|
| Wind direction and speed |
WSW
7
|
WSW
6
|
WSW
6
|
WSW
6
|
| Wind gust (mph) |
11
|
11
|
11
|
11
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
| Humidity |
86%
|
91%
|
93%
|
94%
|
| UV | 1 | 1 | - | - |
| Wind direction and speed |
7
|
6
|
6
|
6
|
| Height of waves offshore (m) |
0.4
|
0.4
|
0.3
|
0.3
|
| Period of waves offshore (s) |
10
|
9
|
9
|
10
|
| Direction of waves offshore |
|
|
|
|
Monday (21 July 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 |
70%
|
60%
|
50%
|
50%
|
50%
|
60%
|
60%
|
60%
|
60%
|
50%
|
60%
|
50%
|
30%
|
30%
|
30%
|
30%
|
30%
|
30%
|
40%
|
50%
|
60%
|
70%
|
60%
|
60%
|
| Temperature (°C) |
15°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
14°
|
15°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
16°
|
16°
|
| Feels like temperature (°C) |
14°
|
14°
|
14°
|
14°
|
14°
|
13°
|
13°
|
13°
|
14°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
14°
|
13°
|
| Wind direction and speed (mph) |
SW
6
|
SW
6
|
SW
6
|
SW
7
|
SW
7
|
SW
7
|
SW
8
|
SW
8
|
SSW
8
|
SW
8
|
SSW
9
|
SW
9
|
WSW
9
|
WSW
9
|
W
11
|
W
12
|
WNW
12
|
W
11
|
W
11
|
W
11
|
W
11
|
WNW
12
|
WNW
13
|
WNW
13
|
| Wind gust (mph) |
12
|
13
|
13
|
13
|
14
|
13
|
14
|
12
|
13
|
12
|
12
|
12
|
13
|
13
|
15
|
16
|
16
|
16
|
16
|
18
|
19
|
19
|
21
|
24
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
VG
|
VG
|
G
|
G
|
G
|
G
|
| Humidity |
95%
|
96%
|
96%
|
96%
|
96%
|
95%
|
95%
|
95%
|
94%
|
94%
|
93%
|
92%
|
90%
|
88%
|
88%
|
88%
|
89%
|
88%
|
91%
|
93%
|
94%
|
94%
|
94%
|
95%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 3 | 4 | 5 | 4 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | - | - |
| Wind direction and speed (mph) |
6
|
6
|
6
|
7
|
7
|
7
|
8
|
8
|
8
|
8
|
9
|
9
|
9
|
9
|
11
|
12
|
12
|
11
|
11
|
11
|
11
|
12
|
13
|
13
|
| Height of waves offshore (m) |
0.2
|
0.2
|
0.2
|
0.2
|
0.2
|
0.3
|
0.3
|
0.3
|
0.4
|
0.4
|
0.4
|
0.3
|
0.3
|
0.3
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.5
|
0.4
|
0.4
|
0.3
|
0.3
|
| Period of waves offshore (s) |
11
|
11
|
11
|
11
|
10
|
10
|
10
|
10
|
9
|
9
|
10
|
10
|
10
|
5
|
5
|
5
|
4
|
4
|
4
|
4
|
4
|
4
|
4
|
3
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Tuesday (22 July 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 |
70%
|
60%
|
20%
|
10%
|
10%
|
10%
|
10%
|
20%
|
20%
|
| Temperature (°C) |
15°
|
15°
|
15°
|
14°
|
16°
|
17°
|
17°
|
16°
|
15°
|
| Feels like temperature (°C) |
13°
|
13°
|
12°
|
12°
|
13°
|
15°
|
15°
|
15°
|
15°
|
| Wind direction and speed (mph) |
WNW
14
|
WNW
16
|
WNW
16
|
W
14
|
W
14
|
W
13
|
WSW
12
|
WSW
10
|
WSW
7
|
| Wind gust (mph) |
25
|
26
|
25
|
23
|
21
|
18
|
18
|
15
|
13
|
| Visibility (description) |
G
|
G
|
VG
|
VG
|
VG
|
E
|
E
|
VG
|
VG
|
| Humidity |
95%
|
95%
|
92%
|
87%
|
81%
|
75%
|
72%
|
78%
|
87%
|
| UV | - | - | - | 1 | 3 | 6 | 4 | 1 | - |
| Wind direction and speed (mph) |
14
|
16
|
16
|
14
|
14
|
13
|
12
|
10
|
8
|
| Height of waves offshore (m) |
0.2
|
0.3
|
0.7
|
0.7
|
0.7
|
0.7
|
0.5
|
0.3
|
0.3
|
| Period of waves offshore (s) |
3
|
3
|
4
|
4
|
4
|
4
|
4
|
3
|
3
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
Wednesday (23 July 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols |  |
 |
|
|
|
|
|
|
| Chance of precipitation |
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
20%
|
20%
|
| Temperature (°C) |
15°
|
15°
|
15°
|
16°
|
17°
|
17°
|
17°
|
15°
|
| Feels like temperature (°C) |
14°
|
14°
|
14°
|
15°
|
15°
|
16°
|
15°
|
15°
|
| Wind direction and speed (mph) |
W
6
|
WNW
7
|
WNW
8
|
WNW
11
|
WNW
12
|
W
11
|
W
9
|
W
7
|
| Wind gust (mph) |
13
|
15
|
16
|
18
|
16
|
16
|
13
|
11
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
91%
|
92%
|
86%
|
77%
|
74%
|
73%
|
78%
|
87%
|
| UV | - | - | 1 | 4 | 7 | 4 | 1 | - |
| Wind direction and speed (mph) |
7
|
8
|
9
|
11
|
12
|
11
|
9
|
7
|
| Height of waves offshore (m) |
0.2
|
0.3
|
0.5
|
0.6
|
0.6
|
0.6
|
0.7
|
0.8
|
| Period of waves offshore (s) |
7
|
3
|
4
|
4
|
4
|
4
|
5
|
5
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Thursday (24 July 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
10%
|
| Temperature (°C) |
15°
|
14°
|
15°
|
17°
|
18°
|
18°
|
17°
|
15°
|
| Feels like temperature (°C) |
14°
|
13°
|
14°
|
15°
|
16°
|
16°
|
15°
|
14°
|
| Wind direction and speed (mph) |
WNW
6
|
WNW
7
|
WNW
8
|
WNW
9
|
W
10
|
WSW
10
|
SW
11
|
SW
9
|
| Wind gust (mph) |
11
|
10
|
10
|
13
|
14
|
15
|
15
|
13
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
91%
|
91%
|
85%
|
75%
|
71%
|
66%
|
72%
|
87%
|
| UV | - | - | 1 | 4 | 7 | 4 | 1 | - |
| Wind direction and speed (mph) |
7
|
7
|
8
|
9
|
10
|
10
|
10
|
8
|
| Height of waves offshore (m) |
0.8
|
0.8
|
0.8
|
0.7
|
0.5
|
0.4
|
0.3
|
0.3
|
| Period of waves offshore (s) |
5
|
5
|
5
|
5
|
4
|
4
|
4
|
3
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Friday (25 July 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
20%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
10%
|
| Temperature (°C) |
15°
|
15°
|
15°
|
18°
|
19°
|
19°
|
19°
|
16°
|
| Feels like temperature (°C) |
14°
|
14°
|
15°
|
16°
|
17°
|
17°
|
17°
|
15°
|
| Wind direction and speed (mph) |
SW
8
|
SW
7
|
WSW
7
|
WSW
10
|
W
11
|
WSW
11
|
SW
11
|
SW
9
|
| Wind gust (mph) |
12
|
11
|
14
|
18
|
20
|
19
|
16
|
13
|
| Visibility (description) |
VG
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
95%
|
95%
|
92%
|
80%
|
72%
|
67%
|
68%
|
86%
|
| UV | - | - | 1 | 3 | 6 | 4 | 1 | - |
| Wind direction and speed (mph) |
8
|
7
|
7
|
10
|
11
|
11
|
11
|
9
|
| Height of waves offshore (m) |
0.3
|
0.4
|
0.3
|
0.2
|
0.4
|
0.4
|
0.3
|
0.3
|
| Period of waves offshore (s) |
4
|
4
|
4
|
4
|
4
|
4
|
3
|
3
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Saturday (26 July 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
10%
|
10%
|
20%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
16°
|
15°
|
15°
|
17°
|
19°
|
19°
|
18°
|
16°
|
| Feels like temperature (°C) |
14°
|
13°
|
13°
|
15°
|
16°
|
16°
|
16°
|
15°
|
| Wind direction and speed (mph) |
WSW
9
|
W
9
|
W
10
|
WSW
13
|
WSW
14
|
WSW
13
|
SW
12
|
WSW
9
|
| Wind gust (mph) |
11
|
12
|
18
|
22
|
22
|
19
|
15
|
13
|
| Visibility (description) |
G
|
G
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
91%
|
92%
|
85%
|
71%
|
66%
|
62%
|
68%
|
87%
|
| UV | - | - | 1 | 4 | 7 | 4 | 1 | - |
| Wind direction and speed (mph) |
9
|
– | – | – | – | – | – | – |
| Height of waves offshore (m) |
0.4
|
– | – | – | – | – | – | – |
| Period of waves offshore (s) |
3
|
– | – | – | – | – | – | – |
| Direction of waves offshore |
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
Tooltip header
Tide times
Sunday 20 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 20 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 20 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 20 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 21 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 21 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 21 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 21 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 22 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 22 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 22 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 22 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 23 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 23 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 23 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 23 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 24 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 24 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 24 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 24 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 25 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 25 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 25 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 25 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 26 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 26 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 26 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 26 July
Tide times and heights are from Cemaes Bay tidal station which is 2.5 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Cemlyn (Beach) weather map
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Wales weather forecast
Headline:
Rain and heavy showers on Monday.
This Evening and Tonight:
Late sunny spells to end Sunday as daytime showers ease. Staying mostly dry overnight with clear spells, and perhaps a few mist patches. Mild, but fresher than last night. Minimum temperature 10 °C.
Monday:
Bright and dry to begin but showers and longer rain spells forming as the day progresses, though fewer than Sunday. Feeling pleasant in any sunshine but with a strengthening breeze. Maximum temperature 21 °C.
Outlook for Tuesday to Thursday:
Staying changeable with drier and brighter periods interspersed by showers and longer spells of rain. More widely dry on Thursday. Warm in any sunshine that does develop, though often breezy.
Updated:
UK long range weather forecast
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