Port Isaac surfForecast / Cornwall (North) / UK

information circle16 Day Weather and Surf, issued 12 pm Friday 29 May 2026 BST
Forecast update in hr  min  s Forecast update imminent
Port Isaac surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Port Isaac sea temperature is
15.5° C
(Which is 3.0°C warmer than normal for this time of year)

Port Isaac surf forecast from 29 May 2026:

  • Best quality surf: Thursday 4 Jun, 7PM (local time) - 11ft (3.5m), 13s period, W swell with cross-shore winds.
  • Most powerful swell: Thursday 4 Jun, 4AM (local time) - 11ft (3.5m), 13s period, W swell with 4,280 kJ wave energy.
  • Next surfable swell (1★+): Friday 29 May, 10PM (local time) - 2.5ft (0.8m), 7s 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 Friday (May 29) at 10PM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.5m and 11s. 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 3.5m 13s and forecast to arrive on Thursday (Jun 04) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Fri 29th May)2.5ft (0.8m) 7s
Best Surf 7PM (Thu 4th Jun)11ft (3.5m) 13s
Most Powerful 4AM (Thu 4th Jun)11ft (3.5m) 13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Sun night. Very mild (max 16°C on Sat morning, min 13°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 23mm), heaviest during Mon afternoon. Very mild (max 16°C on Mon morning, min 11°C on Wed night). Winds increasing (light winds from the SSW on Mon morning, strong winds from the WSW by Wed night).

Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
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
1
1
0
3
0
1
2
1
0
0
0
0
0
0
0
0
0
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
W
14
0.4
W
12
0.6
W
11
0.7
W
8
0.8
W
10
1.6
W
12
1.5
W
12
1.6
W
12
1.5
W
11
1.4
W
11
1.5
WSW
11
1.4
W
10
1.8
W
8
2.2
W
9
1.8
W
9
2.2
W
9
2.5
W
9
3.5
W
12
3.5
W
13
3.5
W
13
3
W
12
Wave Graph
Metric surfscale
Energy kJ
33
46
83
61
127
687
607
690
553
459
476
377
438
775
492
725
1044
3181
4089
3948
2604
Wind (km/h)
10
W
10
WNW
0
NNW
5
W
10
W
15
SW
20
WSW
20
W
15
SSW
20
SSW
25
SSW
20
WSW
30
WNW
30
W
30
SSW
35
SW
40
WSW
45
WSW
45
WSW
40
WSW
20
SW
cross-on
cross-on
glassy
glassy
cross-on
cross-off
cross
cross
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
High Tide
5:15PM6.03m
5:33AM6.05m
5:52PM6.18m
6:11AM6.13m
6:28PM6.27m
6:47AM6.15m
7:04PM6.29m
7:23AM6.11m
7:41PM6.25m
8:00AM6.00m
8:18PM6.14m
8:37AM5.84m
8:56PM6.00m
Low Tide
11:11AM1.22m
11:31PM1.18m
11:47AM1.12m
00:07AM1.06m
12:22PM1.05m
00:43AM1.00m
12:57PM1.04m
1:19AM1.01m
1:32PM1.08m
1:55AM1.09m
2:08PM1.18m
2:33AM1.22m
2:45PM1.32m
3:12AM1.39m
part cloud
clear
part cloud
part cloud
cloud
cloud
part cloud
clear
rain showers
light rain
mod rain
light rain
part cloud
part cloud
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:15
5:13
5:13
5:11
5:11
5:11
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:17
9:19
9:20
9:21
9:22
9:23
9:23
1
2
10
1
1
2
2
5
2
2
Temp °C
15
15
13
16
16
14
15
15
14
16
15
14
15
14
15
15
14
13
13
13
12
13
13
12
14
14
12
12
12
11
15
11
10
10
8
11
9
7
5
4
5
6
Swell 1
Height (m)
Direction
Period (s)
0.5
W
6
0.6
W
6
0.8
W
8
0.7
W
8
0.8
W
10
1.6
W
12
1.5
W
12
1.5
W
11
1.4
W
11
0.1
SW
14
1.8
W
9
0.6
W
13
3
W
12
Energy kJ
15
25
82
61
117
687
607
553
459
8
492
128
2604
Swell 2
Height (m)
Direction
Period (s)
0.3
W
14
0.4
W
12
0.6
W
11
0.5
W
10
0.6
W
13
0.2
W
16
Energy kJ
33
46
83
47
127
19
Swell 3
Height (m)
Direction
Period (s)
0.2
W
8
0.2
WSW
16
0.2
WSW
16
0.2
WSW
16
Energy kJ
5
24
26
24
Wind waves
Height (m)
Direction
Period (s)
1.6
W
12
1.5
WSW
11
1.4
W
10
1.8
W
8
2.2
W
9
2.2
W
9
2.5
W
9
3.5
W
12
3.5
W
13
3.5
W
13
Energy kJ
690
476
377
438
775
725
1044
3181
4089
3948
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
3
1
1
2
2
1
2
1
1
1
1
1
4
2
4
4
Distance (km)
62
14
0
0
14
0
39
39
0
14
56
14
120
117
194
487
526
776
527
221
26
Best forecast wave conditions in North Cornwall
Rating
(10 max)
1
1
2
1
2
3
2
2
3
4
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
2
2
2
3
3
2
2
2
2
3
1
1
2
1
2
4
4
3
4
Header Global
Rating
(10 max)
5
5
5
7
7
6
5
5
4
4
5
8
4
6
5
5
5
5
5
7
6
  • 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 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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