Port Isaac Surf Break

Lat Long: 50.59° N 4.84° W

Port Isaac Surf Forecast and Surf Report

Issued: 6 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Port Isaac sea temperature is
18.1°C
1.7° 

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 4 Sep 2026:

  • Best quality surf: Saturday 5 Sep, 7PM (local time) - 3ft (0.9m), 10s period, W swell with glassy winds.
  • Most powerful swell: Monday 7 Sep, 7AM (local time) - 6.5ft (2.0m), 14s period, W swell with 1,620 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 7PM (local time) - 3ft (0.9m), 10s 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 Saturday (Sep 05) at 7PM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.2m and 4s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Port Isaac in the next 16 days are 2.0m 14s and forecast to arrive on Monday (Sep 07) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Sep 06) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sat 5th Sep)3ft (0.9m) 10s
Best Surf 7PM (Sat 5th Sep)3ft (0.9m) 10s
Most Powerful 7AM (Mon 7th Sep)6.5ft (2.0m) 14s

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


The Lowdown

Right then, let’s have a look at what’s on offer for the next couple of weeks. To be straight with you, it’s a pretty grim outlook for the foreseeable future. We’ve got a long stretch of poor surf conditions ahead, so don’t go getting your hopes up.

The first bit of swell that shows up on Friday the 4th of September is a write-off. We’re looking at a 6ft W swell at Port Isaac, but it’s coming in with a 19 mph cross-on westerly wind, and the combined energy is a moderate 469. The water temperature is sitting at 65°, which is a touch warmer than normal for this time of year, but that’s about the only positive. The conditions are just lumpy and messy. Not worth a paddle.

Saturday the 5th is a bit of a tease. The morning brings a 4ft WNW swell with a 10-second period, energy down to 360, and a light cross-on breeze. It’s described as marginal, with questionable tide conditions. The afternoon drops to 3ft with a cross-shore wind. Still not good.

Sunday the 6th sees the swell drop right off to 2ft with a short 8 to 9-second period. The wind goes offshore in the morning, which is clean, but the energy is weak at 60. There’s just not enough oomph to bother with.

Then we get a bit of a jump on Monday the 7th. A 7ft W swell rolls in with a solid 13-second period, energy jumping to a strong 1359. But the wind is a fresh cross-on westerly, and the conditions are described as poor and choppy. It’s the biggest swell of the period, but the wind is just ruining it. This is too big for beginners anyway, and with that wind, it’s only going to be a messy, lumpy mess for the more experienced.

The rest of that week and into the next is a sandwich of poor conditions. Tuesday the 8th has 6ft with cross-shore winds and rain showers. Wednesday the 9th is similar with short-period 7ft WNW swell and fresh cross-on winds. The energy is moderate but the quality is rubbish. The pattern just keeps repeating. By Sunday the 13th, the swell is down to 2ft with a 10-second period, and a light offshore wind finally gives clean conditions, but the energy is a pathetic 69. It’s surfable, but very ordinary.

The final week is a total dud. From the 14th of September right through to the 19th, we’re looking at tiny waves, mostly under 2ft. The wind is all over the place, and the energy is in the double digits. There’s a glassy moment on Friday the 18th morning, but the swell is only 1.0ft. It’s a big blank run, and I’d say it’s normal for the area to have these quiet spells.

The one standout, if you can call it that, is the Monday the 7th morning session. The swell size is there at 7ft from the west, with a long 13-second period, which usually means better shaped waves. The energy is strong at 1359. But it’s a no-go for beginners, and the cross-on wind is a killer. For the experts, it might be worth a look if the wind shifts, but as it stands, it’s a frustrating one. It’s a beach break, and with that wind and size, it’s looking more interesting for the kite surfers than us paddle guys.

That’s the lot. A long wait for very little. Forecasts can change, but for now, it’s a quiet one.

Rusty

Short Range Forecast

Mostly dry. Warm (max 22°C on Sun morning, min 14°C on Fri night). Winds decreasing (fresh winds from the W on Fri afternoon, calm by Sat afternoon).

Days 5-7 Weather Summary

Light rain (total 9mm), mostly falling on Mon night. Very mild (max 17°C on Mon afternoon, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Tue afternoon, light winds from the SSW by Wed night).

Fri
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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
1
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)
1.8
W
8
1.5
W
8
1.3
WNW
10
1
W
10
0.8
W
10
0.6
W
9
0.6
W
8
0.5
W
16
2
W
13
2
W
12
2.1
W
11
1.8
W
10
1.8
W
10
2
W
8
2
WNW
7
1.7
WNW
7
1
W
7
1.3
W
6
1.7
W
7
1.7
W
8
Wave Graph
Metric surfscale
Energy kJ
461
265
356
202
118
57
50
129
1359
1148
1011
612
605
484
426
270
94
120
311
381
Wind (km/h)
30
W
25
WNW
10
WNW
10
WSW
10
SE
30
SSE
20
S
20
WSW
25
W
30
WSW
20
W
25
W
35
W
30
WNW
30
WNW
25
WNW
20
WSW
20
SSW
20
WSW
25
W
Wind State
cross-on
cross-on
cross-on
cross
off
off
cross-off
cross
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross
cross-off
cross
cross
High Tide
11:27PM5.48m
12:03PM5.32m
00:50AM5.11m
1:36PM5.17m
2:28AM5.14m
3:07PM5.46m
3:48AM5.54m
4:16PM6.01m
4:46AM6.07m
5:08PM6.58m
5:33AM6.55m
5:52PM7.03m
Low Tide
5:08PM1.60m
5:43AM1.89m
6:30PM1.98m
7:19AM2.14m
8:17PM1.99m
8:59AM1.96m
9:44PM1.59m
10:12AM1.47m
10:45PM1.04m
11:05AM0.94m
11:34PM0.53m
11:50AM0.48m
00:15AM0.17m
part cloud
part cloud
part cloud
part cloud
part cloud
clear
cloud
part cloud
part cloud
cloud
rain showers
part cloud
rain showers
part cloud
part cloud
cloud
light rain
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:39
6:41
6:43
6:43
6:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:59
7:55
7:53
7:52
7:50
7:47
7:45
 mm
4
2
3
Temp °C
17
16
16
17
16
22
22
18
17
17
16
17
16
15
16
16
16
17
18
19
Feels °C
12
12
15
15
14
17
18
18
12
12
12
11
10
9
11
11
13
14
16
16
  • 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 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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