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Read moreTreyarnon Bay (Beach) (Cornwall) 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: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Light rain. Sunrise: 06:24; Sunset: 18:32. UV: Low; Pollution: Low; No pollen data.Today. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Light rain. Sunrise: 06:24; Sunset: 18:32. UV: Low; Pollution: Low; No pollen data.
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Tuesday 21 March. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Cloudy changing to heavy rain by nighttime. Sunrise: 06:22; Sunset: 18:34. UV: Moderate; Pollution: Low; No pollen data.Tuesday 21 March. Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Cloudy changing to heavy rain by nighttime. Sunrise: 06:22; Sunset: 18:34. UV: Moderate; Pollution: Low; No pollen data.
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Wednesday 22 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Partly cloudy changing to sunny by late morning. Sunrise: 06:19; Sunset: 18:36. UV: Moderate; Pollution: Low; No pollen data.Wednesday 22 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Partly cloudy changing to sunny by late morning. Sunrise: 06:19; Sunset: 18:36. UV: Moderate; Pollution: Low; No pollen data.
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Thursday 23 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Light showers. Sunrise: 06:17; Sunset: 18:37. UV: Moderate; Pollution: Low; No pollen data.Thursday 23 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Light showers. Sunrise: 06:17; Sunset: 18:37. UV: Moderate; Pollution: Low; No pollen data.
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Friday 24 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Light showers. Sunrise: 06:15; Sunset: 18:39. UV: Moderate; Pollution: Low; No pollen data.Friday 24 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius. Light showers. Sunrise: 06:15; Sunset: 18:39. UV: Moderate; Pollution: Low; No pollen data.
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Saturday 25 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Light showers changing to sunny intervals by late morning. Sunrise: 06:13; Sunset: 18:40. UV: Low;Saturday 25 March. Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius. Light showers changing to sunny intervals by late morning. Sunrise: 06:13; Sunset: 18:40. UV: Low;
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Sunday 26 March. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Clear changing to light showers by late morning. Sunrise: 07:11; Sunset: 19:42. UV: Moderate;Sunday 26 March. Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius. Clear changing to light showers by late morning. Sunrise: 07:11; Sunset: 19:42. UV: Moderate;
Seven day forecast for Treyarnon Bay (Beach)
| Time | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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|
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Chance of precipitation
|
50% | 10% | 10% | 90% | ≥95% | ≥95% | 90% | 80% |
|
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
|
|
9° | 9° | 8° | 8° | 8° | 8° | 8° | 8° |
|
|
SSW
18
|
SSW
16
|
SSW
15
|
SSW
15
|
S
15
|
S
15
|
S
17
|
S
17
|
|
|
|
|
|
|
|
|
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|
|
25 | 23 | 25 | 24 | 25 | 25 | 30 | 28 |
|
|
1.6 | 1.6 | 1.6 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 |
|
|
10 | 12 | 12 | 12 | 12 | 11 | 11 | 11 |
|
Direction of waves offshore
|
||||||||
|
|
G | VG | VG | M | M | M | G | G |
|
Humidity
|
88% | 86% | 87% | 91% | 93% | 94% | 93% | 95% |
|
UV
|
1 | 1 | 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
|
50% | 10% | 10% | 10% | 10% | 10% | <5% | <5% | 10% | 10% | <5% | <5% | <5% | <5% | <5% | <5% | 10% | 10% | 10% | 10% | 50% | 90% | ≥95% | ≥95% |
|
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
12°
|
12°
|
12°
|
13°
|
13°
|
12°
|
12°
|
11°
|
11°
|
11°
|
11°
|
11°
|
11°
|
|
|
8° | 8° | 7° | 7° | 7° | 7° | 7° | 7° | 7° | 8° | 8° | 8° | 8° | 9° | 9° | 9° | 8° | 8° | 8° | 7° | 7° | 7° | 7° | 7° |
|
|
SSW
19
|
SSW
18
|
SSW
21
|
SSW
20
|
SW
20
|
SW
20
|
SW
21
|
SW
21
|
SW
20
|
SW
20
|
SW
20
|
SW
21
|
SW
21
|
SW
22
|
SW
21
|
SW
21
|
SSW
24
|
SSW
23
|
SSW
23
|
SSW
25
|
SSW
25
|
SSW
28
|
SSW
28
|
SSW
29
|
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|
30 | 29 | 32 | 31 | 31 | 31 | 31 | 31 | 30 | 29 | 30 | 31 | 32 | 33 | 31 | 32 | 36 | 35 | 35 | 37 | 38 | 42 | 42 | 45 |
|
|
1.8 | 1.9 | 1.9 | 2.0 | 2.0 | 2.1 | 2.1 | 2.1 | 2.2 | 2.2 | 2.3 | 2.3 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.3 | 2.3 | 2.4 | 2.6 |
|
|
11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 |
|
Direction of waves offshore
|
||||||||||||||||||||||||
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|
VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | VG | G | G | M | M |
|
Humidity
|
95% | 92% | 91% | 91% | 91% | 92% | 90% | 91% | 89% | 87% | 85% | 82% | 79% | 76% | 75% | 76% | 76% | 81% | 81% | 83% | 83% | 85% | 89% | 90% |
|
UV
|
- | - | - | - | - | - | - | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | - | - | - | - | - |
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
≥95% | 90% | 10% | <5% | 10% | 30% | 70% | 60% |
|
|
12°
|
11°
|
10°
|
11°
|
12°
|
12°
|
11°
|
10°
|
|
|
7° | 7° | 7° | 8° | 8° | 8° | 7° | 6° |
|
|
SSW
30
|
SW
25
|
WSW
18
|
SW
17
|
SW
21
|
SSW
22
|
SSW
24
|
SW
25
|
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46 | 38 | 27 | 24 | 32 | 34 | 36 | 37 |
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2.8 | 3.2 | 3.1 | 2.9 | 2.7 | 2.6 | 2.6 | 2.8 |
|
|
11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 |
|
Direction of waves offshore
|
||||||||
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M | VG | E | E | VG | VG | VG | VG |
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Humidity
|
91% | 92% | 83% | 76% | 69% | 74% | 84% | 85% |
|
UV
|
- | - | - | 2 | 3 | 2 | 1 | - |
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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|
Chance of precipitation
|
40% | 10% | 40% | 40% | 50% | 60% | 60% | 40% |
|
|
10°
|
10°
|
10°
|
11°
|
12°
|
12°
|
11°
|
10°
|
|
|
6° | 6° | 6° | 7° | 8° | 8° | 7° | 7° |
|
|
SW
22
|
SW
20
|
SW
21
|
SW
23
|
SW
24
|
SW
22
|
SW
20
|
SW
20
|
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33 | 30 | 30 | 35 | 38 | 35 | 29 | 30 |
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3.0 | 3.1 | 3.1 | 3.2 | 3.5 | 3.7 | 3.7 | 3.5 |
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12 | 12 | 12 | 13 | 13 | 13 | 14 | 15 |
|
Direction of waves offshore
|
||||||||
|
|
VG | VG | G | G | G | G | G | G |
|
Humidity
|
84% | 85% | 86% | 82% | 78% | 81% | 86% | 88% |
|
UV
|
- | - | - | 1 | 3 | 2 | 1 | - |
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
40% | 40% | 40% | 40% | 60% | 60% | 60% | 40% |
|
|
10°
|
10°
|
10°
|
10°
|
11°
|
11°
|
10°
|
10°
|
|
|
6° | 6° | 6° | 6° | 7° | 7° | 6° | 6° |
|
|
SW
22
|
SW
24
|
SW
25
|
SW
25
|
SW
27
|
WSW
28
|
WSW
27
|
WSW
26
|
|
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|
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|
33 | 36 | 36 | 38 | 42 | 43 | 40 | 38 |
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|
3.3 | 3.2 | 3.3 | 3.9 | 4.2 | 4.1 | 3.9 | 4.1 |
|
|
15 | 15 | 15 | 14 | 13 | 13 | 14 | 13 |
|
Direction of waves offshore
|
||||||||
|
|
VG | G | VG | VG | VG | VG | VG | VG |
|
Humidity
|
86% | 84% | 80% | 77% | 74% | 76% | 79% | 81% |
|
UV
|
- | - | - | 1 | 3 | 2 | 1 | - |
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
40% | 50% | 30% | 10% | 30% | 20% | 20% | 70% |
|
|
10°
|
10°
|
10°
|
11°
|
11°
|
11°
|
10°
|
9°
|
|
|
6° | 6° | 6° | 7° | 8° | 8° | 7° | 6° |
|
|
WSW
26
|
WSW
26
|
WSW
23
|
WSW
20
|
WSW
19
|
SW
17
|
SSW
16
|
S
16
|
|
|
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39 | 38 | 35 | 31 | 31 | 28 | 24 | 25 |
|
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4.4 | 4.3 | 3.9 | 3.5 | 3.0 | 2.6 | 2.2 | 1.9 |
|
|
13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 |
|
Direction of waves offshore
|
||||||||
|
|
VG | VG | VG | VG | VG | VG | G | G |
|
Humidity
|
82% | 83% | 84% | 80% | 74% | 75% | 83% | 88% |
|
UV
|
- | - | - | 2 | 2 | 1 | 1 | - |
| Time | 00:00 | 04:00 | 07:00 | 10:00 | 13:00 | 16:00 | 19:00 | 22:00 |
|---|---|---|---|---|---|---|---|---|
| Weather symbol |
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Chance of precipitation
|
80% | 60% | 20% | 40% | 30% | 30% | 10% | 10% |
|
|
9°
|
9°
|
9°
|
9°
|
10°
|
10°
|
10°
|
9°
|
|
|
5° | 5° | 5° | 6° | 7° | 7° | 7° | 6° |
|
|
S
18
|
W
18
|
WNW
18
|
WNW
17
|
WNW
17
|
WNW
17
|
WNW
16
|
WNW
14
|
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28 | 27 | 27 | 27 | 29 | 27 | 24 | 22 |
|
|
1.6 | – | – | – | – | – | – | – |
|
|
11 | – | – | – | – | – | – | – |
|
Direction of waves offshore
|
– | – | – | – | – | – | – | |
|
|
G | G | G | VG | VG | VG | VG | G |
|
Humidity
|
88% | 87% | 86% | 80% | 74% | 74% | 78% | 83% |
|
UV
|
- | - | - | 2 | 3 | 1 | 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). The blue behind the arrow represents the sea, and green is the land. If the arrow points from green to blue, the wind will be blowing from land to sea (‘offshore’). The number is the average wind speed.
Beware of offshore winds if you are using inflatables, paddle boards or kayaks, because 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 that the waves are going 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 or pointing away from land, the height of the waves on the beach is likely to be lower than the height of waves offshore.
Lifeguards can give you advice on waves if you’re planning to go into the water.
Tide times
Tide times for Mon 20 Mar
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Tue 21 Mar
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Wed 22 Mar
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Thu 23 Mar
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Fri 24 Mar
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Sat 25 Mar
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Tide times
Tide times for Sun 26 Mar
Contains ADMIRALTY® tidal data:
© Crown Copyright and database right.
© Crown Copyright and database right.
Treyarnon Bay (Beach) weather map
View the weather with our interactive map
Loading map…
WARNING
Flood alerts in force
for England
Flood alerts in force
for England
South West England weather forecast
Headline:
Cloudy with outbreaks of rain and drizzle.
Today:
A grey and murky start with outbreaks of rain and drizzle, and further heavy rain arriving from the southwest later. Winds increasing from the west, with coastal gales possible, particularly during the afternoon. Maximum temperature 13 °C.
Tonight:
Remaining cloudy with rain clearing northeastwards overnight, becoming drier by Tuesday morning, although scattered showers quickly developing behind. Breezy, particularly along the coasts and over any hills. Minimum temperature 9 °C.
Tuesday:
A day of sunny spells and scattered showers, before cloud thickens during the afternoon, and rain arrives from the west later. Breezy, particularly along the coasts, and mild. Maximum temperature 13 °C.
Outlook for Wednesday to Friday:
Any early rain clearing to leave sunshine and blustery showers on Wednesday. Showers continue on Thursday and Friday, turning heavy and thundery at times. Often windy, and temperatures near average.
Updated:
UK long range weather forecast
Saturday is likely to be unsettled with showers for many, these perhaps turning wintry, especially over high ground in the north, but becoming drier from the west through the day. Strong winds in the south and east at first, tending to ease with time. Sunday will likely bring further rain and perhaps windy conditions to the south, whilst northern areas see brighter skies and wintry showers. After a mostly dry start to next week with some frost, further periods of strong winds and rain are expected with perhaps a trend for the wettest weather to be in the south. Temperatures likely close to average in the south, but rather cold in the north, with a risk of wintry conditions here.
Updated:
To start the period, a continuation of unsettled conditions is the most likely. Moving further into April, a chance of more settled weather is predicted, with drier conditions more probable. Any wetter conditions more likely in the far south. There is a chance that temperatures may trend cooler than average through this period.
Updated:
Nearest forecasts
- Treyarnon Bay Youth Hostel 0.2 miles
- Constantine Bay (Beach) 0.6 miles
- Porthcothan (Beach) 1.2 miles
- Mother Iveys Bay (Beach) 1.3 miles
- Harlyn Bay (Beach) 1.5 miles
- Trevone Bay (Beach) 2.4 miles
- Padstow 3.9 miles
- Mawgan Porth 4.1 miles
- Crealy Adventure Park Cornwall 5.1 miles
- Daymer Bay (Beach) 5.1 miles