Time News
Fine, dry bank holiday weekend
The area of high-pressure which has brought fine conditions across the UK over the last few days is forecast to persist through the bank holiday weekend and in…
Read morePorth Trwyn (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
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Today. Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Clear. Sunrise: 05:01; Sunset: 21:30. UV: Moderate; Pollution: Low; Pollen: High.Today. Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Clear. Sunrise: 05:01; Sunset: 21:30. UV: Moderate; Pollution: Low; Pollen: High.
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Monday 29 May. Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny intervals changing to cloudy in the afternoon. Sunrise: 05:00; Sunset: 21:32. UV: High; Pollution: Low; Pollen: High.Monday 29 May. Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny intervals changing to cloudy in the afternoon. Sunrise: 05:00; Sunset: 21:32. UV: High; Pollution: Low; Pollen: High.
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Tuesday 30 May. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Sunny. Sunrise: 04:59; Sunset: 21:33. UV: High; Pollution: Low; Pollen: High.Tuesday 30 May. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Sunny. Sunrise: 04:59; Sunset: 21:33. UV: High; Pollution: Low; Pollen: High.
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Wednesday 31 May. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny. Sunrise: 04:58; Sunset: 21:34. UV: High; Pollution: Low; Pollen: High.Wednesday 31 May. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny. Sunrise: 04:58; Sunset: 21:34. UV: High; Pollution: Low; Pollen: High.
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Thursday 1 June. Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny. Sunrise: 04:57; Sunset: 21:35. UV: High; Pollution: Low; Pollen: High.Thursday 1 June. Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny. Sunrise: 04:57; Sunset: 21:35. UV: High; Pollution: Low; Pollen: High.
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Friday 2 June. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny. Sunrise: 04:57; Sunset: 21:37. UV: High;Friday 2 June. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny. Sunrise: 04:57; Sunset: 21:37. UV: High;
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Saturday 3 June. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny. Sunrise: 04:56; Sunset: 21:38. UV: High;Saturday 3 June. Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius. Sunny. Sunrise: 04:56; Sunset: 21:38. UV: High;
Seven day forecast for Porth Trwyn (Beach)
| Time | 21:00 | 22:00 | 23:00 |
|---|---|---|---|
| Weather symbol |
|
|
|
|
Chance of precipitation
|
<5% | <5% | <5% |
|
|
13°
|
12°
|
12°
|
|
|
11° | 10° | 10° |
|
|
NNE
11
|
NE
10
|
ENE
9
|
|
|
|
|
|
|
|
23 | 23 | 20 |
|
|
0.7 | 0.7 | 0.7 |
|
|
5 | 5 | 5 |
|
Direction of waves offshore
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|
|
|
|
|
G | G | G |
|
Humidity
|
80% | 83% | 87% |
|
UV
|
1 | - | - |
| 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 symbol |
|
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|
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% |
|
|
12°
|
11°
|
11°
|
10°
|
9°
|
9°
|
10°
|
12°
|
13°
|
13°
|
14°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
15°
|
15°
|
14°
|
12°
|
11°
|
11°
|
|
|
10° | 9° | 9° | 8° | 7° | 7° | 8° | 10° | 10° | 11° | 11° | 12° | 12° | 12° | 13° | 13° | 13° | 13° | 13° | 12° | 12° | 11° | 10° | 9° |
|
|
E
12
|
E
11
|
ESE
10
|
E
9
|
E
8
|
ENE
7
|
E
10
|
E
11
|
E
12
|
E
12
|
ENE
12
|
ENE
13
|
ENE
14
|
NE
14
|
NE
14
|
NE
14
|
NE
14
|
NE
14
|
NNE
13
|
NNE
12
|
NNE
10
|
NE
8
|
NE
8
|
ENE
7
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
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|
|
|
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|
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|
|
26 | 24 | 23 | 19 | 19 | 18 | 22 | 19 | 18 | 18 | 18 | 19 | 21 | 21 | 20 | 20 | 20 | 20 | 19 | 18 | 17 | 17 | 17 | 15 |
|
|
0.7 | 0.6 | 0.6 | 0.5 | 0.5 | 0.5 | 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 | 0.2 | 0.2 | 0.2 | 0.2 |
|
|
5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
|
Direction of waves offshore
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|
G | G | VG | VG | VG | G | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | G | G |
|
Humidity
|
79% | 80% | 78% | 82% | 83% | 83% | 76% | 69% | 64% | 63% | 62% | 59% | 56% | 55% | 55% | 56% | 57% | 59% | 61% | 65% | 70% | 79% | 86% | 89% |
|
UV
|
- | - | - | - | - | - | 1 | 1 | 2 | 3 | 5 | 5 | 6 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | - | - |
| Time | 00:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
|
|
11°
|
11°
|
10°
|
12°
|
16°
|
17°
|
18°
|
16°
|
12°
|
|
|
9° | 9° | 8° | 11° | 13° | 14° | 15° | 14° | 10° |
|
|
ENE
7
|
ENE
8
|
ENE
8
|
ENE
9
|
ENE
13
|
ENE
14
|
NE
13
|
NE
12
|
NE
8
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14 | 16 | 15 | 18 | 19 | 22 | 21 | 20 | 13 |
|
|
0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.2 |
|
|
3 | 3 | 3 | 4 | 4 | 3 | 2 | 3 | 2 |
|
Direction of waves offshore
|
|
|
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|
|
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|
G | G | VG | VG | VG | VG | VG | VG | VG |
|
Humidity
|
88% | 90% | 79% | 67% | 56% | 54% | 58% | 65% | 87% |
|
UV
|
- | - | - | 1 | 5 | 7 | 4 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
|
|
12°
|
11°
|
12°
|
14°
|
16°
|
18°
|
17°
|
13°
|
|
|
10° | 10° | 10° | 11° | 13° | 15° | 14° | 11° |
|
|
ENE
7
|
ENE
8
|
ENE
11
|
ENE
14
|
ENE
15
|
NE
14
|
NE
12
|
NE
8
|
|
|
|
|
|
|
|
|
|
|
|
|
13 | 14 | 19 | 24 | 27 | 25 | 20 | 14 |
|
|
0.1 | 0.1 | 0.2 | 0.4 | 0.4 | 0.4 | 0.3 | 0.3 |
|
|
7 | 3 | 3 | 2 | 3 | 3 | 3 | 3 |
|
Direction of waves offshore
|
|
|
|
|
|
|
|
|
|
|
VG | VG | VG | VG | VG | VG | VG | VG |
|
Humidity
|
89% | 88% | 81% | 72% | 66% | 63% | 69% | 89% |
|
UV
|
- | - | 1 | 5 | 7 | 4 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
|
|
12°
|
10°
|
12°
|
15°
|
17°
|
18°
|
17°
|
13°
|
|
|
10° | 8° | 11° | 13° | 14° | 15° | 15° | 11° |
|
|
ENE
8
|
ENE
8
|
ENE
10
|
ENE
12
|
ENE
13
|
NE
13
|
NE
11
|
NE
9
|
|
|
|
|
|
|
|
|
|
|
|
|
13 | 14 | 17 | 22 | 23 | 23 | 19 | 13 |
|
|
0.2 | 0.2 | 0.3 | 0.3 | 0.4 | 0.3 | 0.3 | 0.3 |
|
|
3 | 3 | 2 | 3 | 3 | 3 | 3 | 3 |
|
Direction of waves offshore
|
|
|
|
|
|
|
|
|
|
|
G | G | VG | VG | VG | VG | VG | VG |
|
Humidity
|
88% | 88% | 81% | 70% | 64% | 62% | 69% | 88% |
|
UV
|
- | - | 1 | 5 | 7 | 4 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
<5% | 10% | <5% | <5% | <5% | <5% | <5% | <5% |
|
|
11°
|
10°
|
13°
|
16°
|
17°
|
18°
|
17°
|
12°
|
|
|
10° | 9° | 12° | 14° | 15° | 15° | 15° | 11° |
|
|
ENE
7
|
ENE
7
|
ENE
7
|
SSE
9
|
NNW
11
|
NE
11
|
NNE
10
|
ENE
8
|
|
|
|
|
|
|
|
|
|
|
|
|
11 | 10 | 12 | 17 | 21 | 22 | 18 | 11 |
|
|
0.2 | 0.2 | 0.1 | 0.1 | 0.2 | 0.3 | 0.3 | 0.2 |
|
|
2 | 3 | 3 | 2 | 2 | 2 | 3 | 2 |
|
Direction of waves offshore
|
|
|
|
|
|
|
|
|
|
|
G | G | G | VG | VG | VG | VG | VG |
|
Humidity
|
91% | 92% | 87% | 71% | 63% | 62% | 68% | 88% |
|
UV
|
- | - | 1 | 4 | 7 | 4 | 1 | - |
| Time | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
|
|
|
|
|
|
|
|
|
Chance of precipitation
|
<5% | <5% | <5% | <5% | <5% | <5% | <5% | <5% |
|
|
11°
|
10°
|
13°
|
15°
|
17°
|
17°
|
17°
|
13°
|
|
|
9° | 9° | 11° | 14° | 15° | 15° | 15° | 11° |
|
|
ENE
6
|
ENE
6
|
ENE
7
|
NE
9
|
NE
11
|
NE
11
|
NE
10
|
NE
8
|
|
|
|
|
|
|
|
|
|
|
|
|
9 | 10 | 12 | 18 | 22 | 21 | 18 | 12 |
|
|
0.1 | 0.1 | 0.2 | 0.3 | 0.4 | – | – | – |
|
|
2 | 3 | 4 | 4 | 4 | – | – | – |
|
Direction of waves offshore
|
|
|
|
|
|
– | – | – |
|
|
G | G | VG | VG | VG | VG | VG | VG |
|
Humidity
|
91% | 91% | 85% | 72% | 64% | 63% | 66% | 85% |
|
UV
|
- | - | 1 | 5 | 7 | 4 | 1 | - |
Chance of precipitation represents how likely it is that rain (or other types of precipitation, such as sleet, snow, hail and drizzle) will fall from the sky at a certain time.
This number shows the air temperature for the time period. You can see the temperature in Celsius or Fahrenheit by using the dropdown menu.
Feels like temperature considers other factors, such as wind speed and humidity. This gives you a better idea of how the temperature will actually feel at the time.
Wind gust shows the highest wind speed that you should encounter at that time, as winds peak and lull.
Strong winds are shown in bold for speeds of 29 mph or more.
The arrow shows the direction the wind is blowing. The letters show the direction the wind is blowing from (on a standard 16-point compass).
The number represents the average wind speed expected at that time.
The arrow shows the direction of the wind (up is north). If the arrow points from land to sea, the wind will be blowing out to sea (‘offshore’). The number is the average wind speed.
Beware of offshore winds if you are using inflatables, paddle boards or kayaks. These winds can blow you out to sea. Read more about how wind will affect you at the beach.
Visibility measures the distance at which an object can be clearly seen.
| VP (Very Poor) | Less than 1 km |
| P (Poor) | 1.1 km to 4 km |
| M (Moderate) | 4.1 km to 10 km |
| G (Good) | 10.1 km to 20 km |
| VG (Very Good) | 20.1 km to 40 km |
| E (Excellent) | Greater than 40 km |
Humidity is the amount of water vapor in the air. If there is a lot of water vapour, the humidity will be high. The higher the percentage of humidity, the wetter it will feel outside.
UV exposure index and the protection required to help keep you safe:
No risk of UV - It’s safe to stay outside. Low - You can safely stay outside. Consider sunscreen in direct sunlight. Moderate - Take care during midday hours and do not spend too much time in the sun unprotected. Sunscreen advised. High - Seek shade during midday hours, cover up and wear sunscreen. Very high - Spend time in the shade between 11am and 3pm. Shirt, sunscreen and hat are essential. Extreme - Avoid being outside during midday hours. Shirt, sunscreen and hat essential.
This is the average height of the waves, 1-2 miles out to sea. The height of the waves can vary. The individual waves out to sea or at the beach can be higher than this number. If you are close to the water, keep an eye on the waves to stop you or your belongings being swept away.
Read more about calculating the expected height of the waves at the beach.
This is the average number of seconds between one wave and the next, 1-2 miles out to sea. A long wave period (more than 10 seconds) means the waves at the beach may be more powerful. Lifeguards can give you advice on waves if you’re planning to go into the water.
Read more about the period of waves.
The arrow shows the average direction of the waves 1-2 miles out to sea. It indicates how sheltered the beach will be from these waves. If the arrow points towards land, most of the waves’ power will reach the beach. If the arrow is parallel to or pointing away from land, the wave height is likely to be lower on the beach than it is offshore.
Lifeguards can give you advice on waves if you’re planning to go into the water.
Tide times
Tide times for Sun 28 May
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Mon 29 May
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Tue 30 May
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Wed 31 May
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Thu 1 Jun
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Fri 2 Jun
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Sat 3 Jun
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Porth Trwyn (Beach) weather map
View the weather with our interactive map
Loading map…
Wales weather forecast
Headline:
Fine and dry with plenty of warm sunshine on offer.
This Evening and Tonight:
Some late hazy sunshine on offer into the evening then becoming largely clear and dry overnight. Feeling rather cool once again under clear skies with perhaps some grass frost in the far north. Gradually getting breezier overnight, especially around coasts. Minimum temperature 7 °C.
Monday:
Dry once again with plenty of sunny spells. Not feeling quite as warm as the weekend and rather breezy at times around coasts, however still pleasant in sheltered sunny spots. Maximum temperature 20 °C.
Outlook for Tuesday to Thursday:
High pressure will keep it dry and settled with plenty of warm sunshine. Nights remaining on the cool side with some low cloud possible in the mornings. Breezy at times.
Updated:
UK long range weather forecast
The first few days of this period sees a continuation of dry, settled conditions for many. Cloud will affect the northeast and eastern counties at times, perhaps moving inland overnight and burning back closer to the coast during the day. After locally chilly nights, temperatures mostly warm by day away from windward eastern coasts (perhaps very warm in sheltered western and northwestern areas). Winds mostly light, but perhaps moderate in the far south. Further ahead the largely dry, settled conditions are likely to continue as the risk of any thundery showers spreading into the southern UK now looks very low. Temperatures above average for many, remaining cooler near eastern coasts. Winds mostly light, strongest towards the south.
Updated:
A north/south split is possible as June progresses with northern areas having a better chance of continued dry conditions, whereas the south may be slightly wetter than average. Winds may also be stronger in the southern half of the country but remain light in northern regions. In general, the temperatures are likely to be above average; eastern coastal areas may feel slightly cooler, however, in the presence of onshore winds.
Updated:
