Caerhays surfForecast / Cornwall (South) / UK

information circle12 Day Weather and Surf, issued 11 pm Saturday 13 Dec 2025 GMT
Forecast update in hr  min  s Forecast update imminent
Caerhays surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Caerhays sea temperature is
12.4° C
(Which is 1.0°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Caerhays this week:

The surf forecast for Caerhays over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Dec 15) at 12PM. The primary swell is predicted to be 3.5m and 13s period with a secondary swell of 1.6m and 7s. Another secondary swell of 0.8m and 14s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Caerhays in the next 12 days are 5.0m 19s and forecast to arrive on Thursday (Dec 18) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Tuesday (Dec 16) at 12AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)12PM (Mon 15th Dec)11ft (3.5m) 13s
Best Surf12PM (Mon 15th Dec)11ft (3.5m) 13s
Most Powerful 3PM (Thu 18th Dec)16ft (5.0m) 19s

Table - best surf conditions forecast for Caerhays over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 60mm), heaviest during Mon night. Very mild (max 12°C on Sun afternoon, min 8°C on Mon night). Mainly strong winds.

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Thu afternoon. Very mild (max 13°C on Thu afternoon, min 8°C on Tue night). Winds increasing (light winds from the WNW on Tue night, near gales from the S by Thu afternoon).

Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
2
0
2
2
2
0
0
0
0
!
0
2
3
2
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.5
WSW
0.7
WSW
0.8
WSW
1.9
SSW
2
S
0.8
WSW
0.8
WSW
0.8
WSW
0.8
WSW
0.8
WSW
0.7
SW
1.3
SSW
2.2
SSW
2.1
SW
5
WSW
3.5
SSW
2.3
SW
1.6
SW
1.1
SW
0.7
SW
0.6
WSW
Period(s) (?)13131477141515151514672119181716151413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)101140253332423261275302279275197107462392317504647530051317503197116
Wind
(km/h)
30
SSW
35
SSW
40
SSW
40
SSW
40
SSW
10
NNW
40
NNW
25
NNW
20
NNW
5
WNW
20
SSW
35
SSW
30
SSW
50
S
60
S
45
WSW
15
W
15
W
5
NW
10
ENE
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
ononononoffoffoffoffcross-
off
cross-
on
cross-
on
cross-
on
ononcross-
on
crosscrosscross-
off
cross-
off
cross-
off
High Tide
/ height (m)
12:37AM
3.49
12:54PM
3.61
1:30AM
3.55
1:46PM
3.62
2:18AM
3.66
2:35PM
3.69
3:02AM
3.80
3:20PM
3.79
3:44AM
3.95
4:02PM
3.90
4:24AM
4.09
4:42PM
3.99
5:02AM
4.20
5:20PM
4.06
Low Tide
/ height (m)
6:51AM
1.50
7:32PM
1.33
8:04AM
1.45
8:34PM
1.25
9:02AM
1.29
9:24PM
1.12
9:49AM
1.09
10:07PM
0.96
10:30AM
0.89
10:45PM
0.80
11:08AM
0.71
11:22PM
0.66
11:44AM
0.57
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
Sunrise-8:10--8:11--8:11--8:12--8:14--8:14--8:15-
Sunset--4:15--4:15--4:15--4:15--4:16--4:16--4:16
part cloud
part cloud
cloud
heavy rain
heavy rain
mod rain
rain showers
part cloud
part cloud
part cloud
cloud
cloud
light rain
part cloud
light rain
part cloud
part cloud
clear
clear
part cloud
cloud
Rain (mm)
---1613922-----3-3------
Temp. °C1011121212109109910111112131010101088
Feels °C (?)445457354534511-166855
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Caerhays Surf forecast

The above surf forecast table for Caerhays provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Caerhays can be found by selecting the local surf guide option on the grey menu. Our Caerhays surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Caerhays) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Caerhays may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Caerhays is 13 km (8 miles) from Saint Austell. If you plan a holiday in South Cornwall, look for hotels and other accommodation in Saint Austell. Saint Austell has rooms for a wide range of budgets as well as car hire and transport links.

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