Port Isaac Surf Break

Lat Long: 50.59° N 4.84° W

Port Isaac Surf Forecast and Surf Report

Issued: 6 am 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Port Isaac sea temperature is
18.6°C
2.0° 

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


Port Isaac surf forecast from 24 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 1AM (local time) - 2ft (0.6m), 9s period, W swell with offshore winds.
  • Most powerful swell: Monday 31 Aug, 10AM (local time) - 10ft (3.0m), 11s period, W swell with 1,908 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 1AM (local time) - 2ft (0.6m), 9s period with W swell.

Best Forecast Surf Conditions for Port Isaac this week:

The surf forecast for Port Isaac over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 26) at 1AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.1m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Port Isaac in the next 16 days are 3.0m 11s and forecast to arrive on Monday (Aug 31) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Sunday (Aug 30) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Wed 26th Aug)2ft (0.6m) 9s
Best Surf 1AM (Wed 26th Aug)2ft (0.6m) 9s
Most Powerful10AM (Mon 31st Aug)10ft (3.0m) 11s

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


The Lowdown

Alright folks, let’s talk about what’s happening at Port Isaac over the next couple of weeks. I’ve got to be honest, it’s not looking like a great stretch of time for us. The ocean’s going to be pretty stingy with the good stuff.

The main issue is that nearly every day in the forecast is flagged as "poor surf conditions." Even when we get a bit of swell, the wind is usually blowing in the wrong direction or just too strong to make it fun. We’re looking at a long, quiet period, so don’t plan a trip around anything special.

Let’s break it down day by day. Starting now, from Monday the 24th through to the end of August, it’s tiny. You’re looking at waves barely hitting 0.7ft to 2ft from the west or west-southwest, with periods down around 4 to 10 seconds. The combined energy is a weak 13 to 140. The wind is bad news, mostly cross-off or cross, and on the 29th it picks up to a Fresh Breeze of 22 mph from the west-southwest with rain showers making things lumpy. Between the 24th and the 30th, that’s a solid week of basically nothing worth paddling out for.

As we move into the first week of September, the swell does start to show up more, but it’s still a letdown. From the 31st of August through to the 3rd of September, we see the combined energy climb into the hundreds and even low thousands (up to 1908 on the morning of the 31st), with swell heights reaching 5ft to 10ft. The problem? It’s almost always cross-on or cross-off winds, and the quality is shot. The 31st of August brings a 10ft west swell at 11 seconds, but with a fresh cross-shore wind at 22 mph, it’s just a lumpy windswell mess. The 5th of September morning is the only time the forecast kicks up a "marginal" call with a 5ft west swell at a decent 12 seconds and a cross-off wind. The combined energy is a moderate 711, and the surf should be clean. That’s the single best window in the entire 16-day run. Don’t get too amped though – it’s only a 1 out of 10, so keep your expectations in check.

Later on, the 7th of September brings a monster 12ft west swell with a very long period of 17 seconds and a combined energy of 7992 – that’s powerful energy. But the wind is a cross-on 16 mph, making it a choppy, closed-out mess only for the brave and well-equipped. It’s way beyond beginner territory.

So, the honest truth? There are no big standouts. If you’re set on getting a session in, the morning of the 5th of September early is your best bet at Port Isaac. You’ll want to be there for a 5ft west swell with light cross-off winds, giving you the cleanest chance. Just know the quality is still marginal. For the rest of the time, leave the board in the shed. The crowds shouldn’t be heavy because there’s nothing to crowd. For anything else, this setup looks way more interesting for the kite surfers than anybody with a paddle.

Stay patient.

- Rusty

Short Range Forecast

Light rain (total 5mm), mostly falling on Wed night. Warm (max 22°C on Mon afternoon, min 15°C on Mon night). Winds decreasing (fresh winds from the E on Mon morning, light winds from the SSE by Wed night).

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Sat afternoon. Warm (max 21°C on Thu morning, min 15°C on Thu night). Winds increasing (light winds from the SSE on Fri morning, fresh winds from the WSW by Sat afternoon).

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
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
1
0
0
0
0
0
1
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)
0.2
W
9
0.2
W
9
0.2
W
9
0.3
WNW
10
0.5
W
10
0.6
W
9
0.5
W
8
0.5
W
8
0.4
W
8
0.4
W
7
0.6
WSW
8
0.8
WSW
8
0.7
WSW
7
0.9
W
4
1.8
W
8
1
W
6
0.8
WSW
6
1
W
6
0.8
W
6
1.3
WSW
7
2.3
W
9
Wave Graph
Metric surfscale
Energy kJ
7
6
6
20
50
61
35
32
18
17
43
73
48
26
371
84
42
68
48
137
865
Wind (km/h)
30
E
25
ESE
20
E
20
E
20
SE
15
SE
15
S
10
SSE
20
SE
15
SSE
20
WSW
10
S
5
SSE
25
NW
15
W
20
SSW
35
WSW
25
W
25
S
35
SW
40
SW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
off
cross-off
off
cross
cross-off
off
cross-on
cross
cross-off
cross
cross
cross-off
cross-off
cross-off
High Tide
4:12PM5.10m
4:38AM5.18m
4:59PM5.57m
5:19AM5.63m
5:37PM6.05m
5:55AM6.06m
6:11PM6.48m
6:28AM6.43m
6:43PM6.82m
7:00AM6.71m
7:15PM7.05m
7:32AM6.88m
7:48PM7.14m
Low Tide
10:04AM2.24m
10:36PM1.98m
10:54AM1.80m
11:19PM1.53m
11:33AM1.35m
11:55PM1.09m
12:07PM0.94m
00:28AM0.71m
12:39PM0.61m
00:59AM0.42m
1:10PM0.38m
1:30AM0.25m
1:42PM0.26m
2:02AM0.21m
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
clear
part cloud
light rain
rain showers
part cloud
cloud
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:22
6:24
6:26
6:26
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:20
8:17
8:15
8:14
8:10
8:08
 mm
5
1
4
4
2
Temp °C
21
22
18
21
22
17
21
21
18
21
20
16
19
19
17
18
19
17
20
19
16
Feels °C
15
16
14
18
19
16
20
21
17
19
17
15
17
15
16
16
15
13
17
14
11
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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Information about the Port Isaac Surf forecast

The above surf forecast table for Port Isaac provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Port Isaac can be found by selecting the local surf guide option on the grey menu. Our Port Isaac 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 (Port Isaac) 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 Port Isaac 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.

Are you planning a holiday in North Cornwall? If you are looking for accommodation near Port Isaac, camping, hotels and holiday cottages in North Cornwall, consider staying in Padstow which is 8 km (5 miles) away. Other places in and around North Cornwall where you can find information about places to rent, and car hire include Bodmin which is 15 km (9 miles) away, Newquay, Par and Saint Austell.

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