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What’s next for the UK weather as Storm Floris moves on?
Wind gusts in excess of 70mph were reported in parts of Scotland at Storm Floris brought impacts for many, but there’s further unsettled weather likely later t…
Read morePorth Tywyn Mawr (Sandy 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: 20° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 12° Celsius; -
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 13° Celsius;
-
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 12° Celsius;
-
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 20° Celsius; Minimum nighttime temperature: 14° Celsius;
-
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 14° Celsius;
-
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 24° Celsius; Minimum nighttime temperature: 14° Celsius;
6 day forecast for Porth Tywyn Mawr (Sandy Beach)
Tomorrow (7 August 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%
|
80%
|
≥95%
|
≥95%
|
≥95%
|
70%
|
40%
|
20%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature |
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
16°
|
17°
|
17°
|
18°
|
18°
|
18°
|
19°
|
19°
|
18°
|
18°
|
18°
|
17°
|
17°
|
16°
|
16°
|
15°
|
| Feels like temperature (°C) |
13°
|
12°
|
11°
|
11°
|
11°
|
11°
|
12°
|
13°
|
14°
|
14°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
| Wind direction and speed |
SSW
19
|
SSW
20
|
SSW
22
|
SSW
24
|
SSW
24
|
SSW
23
|
SW
20
|
SW
17
|
WSW
15
|
WSW
14
|
WSW
13
|
WSW
13
|
WSW
13
|
WSW
13
|
SW
13
|
SW
14
|
SW
14
|
SSW
15
|
SW
14
|
SW
14
|
SW
12
|
SW
9
|
WSW
8
|
W
8
|
| Wind gust (mph) |
35
|
38
|
41
|
43
|
42
|
39
|
33
|
29
|
25
|
24
|
21
|
21
|
22
|
22
|
21
|
23
|
25
|
27
|
26
|
24
|
21
|
19
|
19
|
20
|
| Visibility |
G
|
G
|
M
|
M
|
M
|
M
|
G
|
VG
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
84%
|
84%
|
88%
|
91%
|
93%
|
93%
|
95%
|
95%
|
94%
|
90%
|
81%
|
74%
|
68%
|
65%
|
62%
|
61%
|
65%
|
70%
|
75%
|
76%
|
83%
|
85%
|
84%
|
82%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 1 | 2 | 3 | 5 | 6 | 7 | 6 | 5 | 4 | 2 | 1 | 1 | 1 | 1 | - | - |
| Wind direction and speed |
19
|
20
|
22
|
24
|
24
|
23
|
20
|
17
|
15
|
14
|
13
|
13
|
13
|
13
|
13
|
14
|
14
|
15
|
14
|
14
|
12
|
9
|
8
|
8
|
| Height of waves offshore (m) |
0.6
|
0.7
|
0.7
|
0.7
|
0.7
|
0.7
|
0.7
|
0.8
|
0.8
|
0.7
|
0.7
|
0.6
|
0.6
|
0.5
|
0.5
|
0.4
|
0.4
|
0.4
|
0.4
|
0.4
|
0.5
|
0.5
|
0.5
|
0.5
|
| Period of waves offshore (s) |
5
|
5
|
6
|
6
|
7
|
7
|
7
|
7
|
7
|
7
|
7
|
7
|
7
|
4
|
4
|
4
|
4
|
3
|
4
|
4
|
8
|
7
|
7
|
6
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Friday (8 August 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 |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
15°
|
14°
|
13°
|
14°
|
16°
|
18°
|
18°
|
17°
|
16°
|
| Feels like temperature (°C) |
14°
|
13°
|
12°
|
12°
|
14°
|
15°
|
14°
|
14°
|
13°
|
| Wind direction and speed (mph) |
W
9
|
W
9
|
WSW
9
|
WSW
10
|
SW
14
|
SW
15
|
SSW
18
|
SSW
17
|
SSW
15
|
| Wind gust (mph) |
21
|
22
|
22
|
23
|
25
|
30
|
32
|
32
|
29
|
| Visibility (description) |
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
79%
|
79%
|
83%
|
82%
|
70%
|
64%
|
65%
|
75%
|
85%
|
| UV | - | - | - | 1 | 4 | 7 | 4 | 1 | - |
| Wind direction and speed (mph) |
9
|
9
|
9
|
10
|
14
|
15
|
18
|
17
|
15
|
| Height of waves offshore (m) |
0.6
|
0.6
|
0.6
|
0.6
|
0.6
|
0.6
|
0.5
|
0.5
|
0.7
|
| Period of waves offshore (s) |
4
|
4
|
5
|
4
|
4
|
4
|
3
|
6
|
6
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
|
Saturday (9 August 2025)
| Time |
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%
|
10%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
15°
|
15°
|
15°
|
17°
|
18°
|
18°
|
17°
|
16°
|
| Feels like temperature (°C) |
14°
|
13°
|
12°
|
14°
|
14°
|
15°
|
15°
|
15°
|
| Wind direction and speed (mph) |
SW
11
|
SW
11
|
SW
13
|
SW
16
|
SW
17
|
SSW
17
|
SW
14
|
WSW
9
|
| Wind gust (mph) |
24
|
24
|
27
|
28
|
29
|
29
|
26
|
19
|
| Visibility (description) |
E
|
E
|
E
|
E
|
E
|
E
|
E
|
E
|
| Humidity |
85%
|
84%
|
82%
|
69%
|
65%
|
66%
|
75%
|
85%
|
| UV | - | - | 1 | 4 | 7 | 4 | 1 | - |
| Wind direction and speed (mph) |
11
|
11
|
13
|
16
|
17
|
17
|
14
|
9
|
| Height of waves offshore (m) |
0.7
|
0.5
|
0.5
|
0.9
|
0.8
|
0.8
|
0.8
|
0.5
|
| Period of waves offshore (s) |
6
|
5
|
4
|
5
|
5
|
5
|
5
|
6
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Sunday (10 August 2025)
| Time |
01:00
|
04:00
|
07:00
|
10:00
|
13:00
|
16:00
|
19:00
|
22:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
15°
|
14°
|
14°
|
17°
|
18°
|
18°
|
17°
|
16°
|
| Feels like temperature (°C) |
14°
|
13°
|
14°
|
16°
|
16°
|
16°
|
15°
|
15°
|
| Wind direction and speed (mph) |
WSW
6
|
W
5
|
SW
5
|
SW
9
|
SSW
11
|
SSW
12
|
SSW
12
|
S
9
|
| Wind gust (mph) |
14
|
12
|
13
|
16
|
19
|
20
|
17
|
14
|
| Visibility (description) |
E
|
E
|
VG
|
E
|
E
|
E
|
E
|
VG
|
| Humidity |
86%
|
89%
|
90%
|
74%
|
67%
|
69%
|
77%
|
89%
|
| UV | - | - | 1 | 4 | 6 | 3 | 1 | - |
| Wind direction and speed (mph) |
6
|
5
|
5
|
9
|
11
|
12
|
12
|
9
|
| Height of waves offshore (m) |
0.5
|
0.4
|
0.3
|
0.3
|
0.4
|
0.4
|
0.3
|
0.3
|
| Period of waves offshore (s) |
6
|
4
|
4
|
5
|
3
|
4
|
5
|
6
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Monday (11 August 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%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
16°
|
15°
|
16°
|
18°
|
19°
|
20°
|
19°
|
16°
|
| Feels like temperature (°C) |
14°
|
14°
|
14°
|
16°
|
17°
|
18°
|
18°
|
16°
|
| Wind direction and speed (mph) |
S
9
|
S
10
|
SSW
10
|
SSW
12
|
SSW
13
|
SW
12
|
SSW
9
|
SSE
7
|
| Wind gust (mph) |
13
|
13
|
13
|
15
|
16
|
16
|
10
|
8
|
| Visibility (description) |
VG
|
VG
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
93%
|
94%
|
93%
|
81%
|
72%
|
68%
|
78%
|
94%
|
| UV | - | - | 1 | 4 | 6 | 4 | 1 | - |
| Wind direction and speed (mph) |
9
|
10
|
10
|
12
|
13
|
12
|
9
|
7
|
| Height of waves offshore (m) |
0.2
|
0.2
|
0.2
|
0.2
|
0.5
|
0.4
|
0.3
|
0.2
|
| Period of waves offshore (s) |
6
|
5
|
5
|
5
|
5
|
4
|
4
|
4
|
| Direction of waves offshore |
|
|
|
|
|
|
|
|
Tuesday (12 August 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%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
15°
|
15°
|
15°
|
19°
|
21°
|
22°
|
21°
|
17°
|
| Feels like temperature (°C) |
15°
|
15°
|
15°
|
19°
|
21°
|
21°
|
20°
|
17°
|
| Wind direction and speed (mph) |
SSE
6
|
S
5
|
S
5
|
S
6
|
SW
7
|
WSW
8
|
SW
7
|
S
5
|
| Wind gust (mph) |
7
|
6
|
9
|
12
|
14
|
13
|
8
|
6
|
| Visibility (description) |
G
|
G
|
G
|
VG
|
VG
|
VG
|
VG
|
G
|
| Humidity |
96%
|
97%
|
95%
|
81%
|
66%
|
61%
|
70%
|
93%
|
| UV | - | - | 1 | 3 | 6 | 4 | 1 | - |
| Wind direction and speed (mph) |
6
|
– | – | – | – | – | – | – |
| Height of waves offshore (m) |
0.2
|
– | – | – | – | – | – | – |
| Period of waves offshore (s) |
11
|
– | – | – | – | – | – | – |
| Direction of waves offshore |
|
–
|
–
|
–
|
–
|
–
|
–
|
–
|
Tooltip header
Tide times
Thursday 7 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 7 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 7 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 7 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 8 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 8 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 8 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 8 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 9 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 9 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 9 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 9 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 10 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 10 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 10 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 10 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 11 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 11 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 11 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 11 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 12 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 12 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 12 August
Tide times and heights are from Holyhead tidal station which is 2.3 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 12 August
Tide times and heights are from Holyhead tidal station which is 2.3 miles away. So times may be different at this beach. What does this mean?
Contains ADMIRALTY® tidal data: © Crown Copyright and database right.
Porth Tywyn Mawr (Sandy Beach) weather map
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Wales weather forecast
Headline:
Cloudier overnight with outbreaks of rain.
This Evening and Tonight:
Dry with some hazy sunshine this evening. Staying generally dry overnight but rain edging in from the northwest later, heaviest across Gwynedd and Anglesey. Southwesterly winds freshening in the west. Minimum temperature 11 °C.
Thursday:
Cloudy with rain and drizzle in the north and west slowly edging southeast through the morning. Brighter spells developing in the afternoon with a few showers. Breezy. Maximum temperature 21 °C.
Outlook for Friday to Sunday:
High pressure will bring dry and settled weather with plenty of sunshine through the period. Generally warmer but occasionally breezier on western coasts.
Updated: