Port Isaac surfForecast / Cornwall (North) / UK

information circle16 Day Weather and Surf, issued 11 pm Friday 20 Mar 2026 GMT
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
10.3° C
(Which is slightly warmer than usual)

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 Sunday (Mar 22) at 3AM. The primary swell is predicted to be 0.5m and 12s period with a secondary swell of 0.4m and 9s. 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 3.0m 8s and forecast to arrive on Wednesday (Mar 25) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Tuesday (Mar 24) at 12AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 22nd Mar)1.5ft (0.5m) 12s
Best Surf12AM (Fri 27th Mar)3.5ft (1.0m) 11s
Most Powerful12PM (Wed 25th Mar)10ft (3.0m) 8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 13°C on Sat morning, min 8°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 12°C on Tue morning, min 6°C on Thu afternoon). Winds increasing (light winds from the SSW on Mon night, strong winds from the NW by Tue night).

Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Fri
27
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
2
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
WNW
0.4
WNW
0.7
WNW
0.6
W
0.5
W
0.5
W
0.5
W
0.7
W
0.7
W
0.7
W
1.2
W
2.1
W
3
WNW
3.5
WNW
3
WNW
2.5
NW
0.9
W
1.2
W
1
W
0.8
W
0.9
W
Period(s) (?)111212111413121212115788881212111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3751137919686761411411278338999814091256699224390257149184
Wind
(km/h)
5
ESE
10
ENE
10
N
5
NNE
10
N
15
NNW
15
N
5
S
10
SW
15
SW
30
SW
40
W
40
NW
40
NW
40
NW
30
NNW
20
N
20
N
5
NW
20
WSW
20
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscrosscross-
on
cross-
on
ononcross-
on
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
on
cross-
on
cross-
on
oncross-
on
onglasscrosscross
High Tide
/ height (m)
6:45AM
7.51
7:04PM
7.32
7:23AM
7.34
7:43PM
7.11
8:04AM
6.97
8:25PM
6.72
8:49AM
6.42
9:13PM
6.18
9:43AM
5.79
10:12PM
5.61
10:53AM
5.20
11:33PM
5.19
12:29PM
4.92
Low Tide
/ height (m)
12:38AM
-0.13
12:58PM
-0.14
1:15AM
-0.06
1:35PM
0.08
1:54AM
0.21
2:15PM
0.49
2:37AM
0.65
2:59PM
1.03
3:28AM
1.22
3:55PM
1.63
4:37AM
1.78
5:15PM
2.12
6:17AM
2.09
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Fri
27
Sunrise-6:20--6:18--6:16--6:13--6:11--6:09--6:07-
Sunset--6:32--6:34--6:36--6:37--6:38--6:40--6:42
part cloud
clear
clear
clear
clear
cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
Rain (mm)
---------------------
Temp. °C11131310111010111191210988876699
Feels °C (?)911108867886431-2-2-111244
  • 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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