Caerhays Surf Break

Lat Long: 50.23° N 4.85° W

Caerhays Surf Forecast and Surf Report

Issued: 6 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Caerhays sea temperature is
19.0° C
2.0° 

Caerhays surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Caerhays surf forecast from 18 Aug 2026:

  • Most powerful swell: Tuesday 25 Aug, 10AM (local time) - 6ft (1.9m), 7s period, SSW swell with 326 kJ wave energy.

Best Forecast Surf Conditions for Caerhays this week:

The most powerful waves expected at Caerhays in the next 16 days are 1.9m 7s and forecast to arrive on Tuesday (Aug 25) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 6s period and expected on Saturday (Aug 22) at 7PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10AM (Tue 25th Aug)6ft (1.9m) 7s

Table - best surf conditions forecast for Caerhays over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s have a look at what’s cookin’ for the next couple weeks.

Honestly, it’s a rough stretch ahead. The surf is tiny, the wind is mostly messy, and there’s not a single session I’d get excited about paddling out for. We’ve got a solid gap of poor conditions right from the start, all the way through to the very end of the month. The only real spike in energy doesn’t come with decent winds, so it’s a frustrating wait.

We kick off Tuesday the 18th of August with some tiny 1ft SW swell, but a moderate cross-off breeze has it looking pretty average. Wednesday and Thursday stay small, with periods around 6–7 seconds and the same messy wind. The combined energy is weak, sitting around 10–30 for most of that time. Friday the 21st offers a bit of a reprieve with a light offshore wind from the N, but the swell is barely there at less than 1ft and 8-second period, so it’s a glassy lake more than anything.

Saturday the 22nd has a brief moment of calm, with a glassy morning and a less than 1ft SSW groundswell, but the energy is basically nothing. Sunday and Monday have some offshore or glassy moments, but again, the swell is next to zero.

The real shift comes later. By Friday the 28th of August, we finally see a jump in swell: 4ft from the S, with a moderate cross-shore wind. The combined energy hits 111, which is a moderate pulse, but the wind is cross and lumpy, so it won’t be clean. Saturday the 29th has some light rain and onshore wind, with 3ft swell and energy up to 127, but the wind is straight onshore from the SSE at 18 mph – that’s a messy, choppy mess. The biggest event is Monday the 31st of August, when a 6ft SSW swell arrives with strong energy (443), but the wind is onshore and the conditions are poor. That’s a solid, powerful swell but only for experienced surfers if you can find a sheltered bank, and with the onshore wind, it’s going to be blown out. It might actually be more interesting for kite surfing than paddle surfing that afternoon.

Into September, Tuesday the 1st has 3ft and moderate cross-onshore winds, and Wednesday the 2nd sees a little 3ft with a clean cross-off breeze from the NW, but the energy is weak. Still, nothing stands out as a true go.

Best of a bad bunch: The only window that holds any real promise is the afternoon of Monday the 31st of August. That 6ft SSW swell with strong energy (443) is the biggest of the period, but the onshore wind is a killer. If the wind eases, it could offer a few powerful, lumpy waves for experts only. Otherwise, it’s a frustrating 16 days with nothing to write home about.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue night. Warm (max 20°C on Tue morning, min 13°C on Thu night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Fri morning, min 14°C on Sat night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
S
17
0.3
SW
6
0.1
S
17
0.1
S
16
0.1
S
16
0.4
WSW
7
0.4
SW
6
0.4
SW
10
0.2
WSW
10
0.2
WSW
8
0.1
S
13
0.1
S
16
0.6
E
5
0.6
ESE
6
0.3
ESE
6
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.6
SSW
4
1.3
SSW
6
Wave Graph
Metric surfscale
Energy kJ
5
6
6
5
5
18
11
36
10
6
3
5
16
28
8
8
8
8
8
11
127
Wind (km/h)
30
WNW
25
WNW
15
W
15
WNW
30
WNW
25
W
30
WNW
25
NW
10
NNW
20
NE
10
NNW
15
N
15
E
5
SW
15
N
15
NNE
5
W
10
N
15
ESE
20
SE
15
ESE
Wind State
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
off
off
cross
glassy
off
off
cross
off
cross
cross-on
cross-on
High Tide
9:50PM4.16m
10:12AM3.94m
10:33PM3.82m
11:00AM3.66m
11:27PM3.50m
12:02PM3.41m
00:39AM3.25m
1:20PM3.27m
1:59AM3.17m
2:38PM3.31m
3:13AM3.26m
3:45PM3.50m
Low Tide
4:01PM0.55m
4:21AM0.70m
4:38PM0.92m
4:58AM1.09m
5:19PM1.29m
5:40AM1.45m
6:11PM1.62m
6:43AM1.73m
7:41PM1.82m
8:33AM1.81m
9:32PM1.71m
9:59AM1.59m
10:34PM1.40m
part cloud
clear
light rain
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:13
6:13
6:16
6:16
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:32
8:30
8:29
8:27
8:24
8:22
8:21
 mm
2
1
Temp °C
20
20
17
20
19
16
19
19
15
18
18
15
17
18
16
18
18
15
18
18
18
Feels °C
17
16
14
16
13
13
14
14
13
17
15
12
14
17
13
17
16
12
14
15
15
  • Map Icons:
  • Break
  • 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 16 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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