Port Isaac surfForecast / Cornwall (North) / UK

information circle12 Day Weather and Surf, issued 11 pm Monday 12 Jan 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
9.6° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for Port Isaac this week:

The surf forecast for Port Isaac over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jan 13) at 6AM. The primary swell is predicted to be 2.0m and 12s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Port Isaac in the next 12 days are 3.5m 16s and forecast to arrive on Friday (Jan 16) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Thursday (Jan 15) at 12AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Tue 13th Jan)6.5ft (2.0m) 12s
Best Surf 6PM (Fri 16th Jan)11ft (3.5m) 16s
Most Powerful 6PM (Fri 16th Jan)11ft (3.5m) 16s

Table - best surf conditions forecast for Port Isaac over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 8mm), mostly falling on Wed night. Very mild (max 10°C on Mon night, min 4°C on Wed morning). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Fri night. Mild temperatures (max 9°C on Fri morning, min 6°C on Sun morning). Wind will be generally light.

Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Mon
19
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
3
0
0
2
2
0
3
4
3
3
3
4
3
2
1
2
1
1
1
2
Swell
Height Map
Wave Height (m) & direction (?)
2.1
W
2
W
1.8
W
1.4
W
1
W
1.2
W
0.8
W
1.1
WNW
2
WNW
2.3
W
2.4
W
3
W
3
W
2.2
W
1.9
W
1.4
W
1.1
W
1
W
0.9
W
0.8
W
1.1
W
Period(s) (?)111211111113122018161616151413121111101012
Wave
Graph
(?)Metric surfscale
Energy kJ (?)112610378284752244921849892344280428395053375017701210547289231167123350
Wind
(km/h)
15
S
10
SW
25
N
10
NNE
10
SSE
15
SSW
30
SSW
10
W
0
E
15
SSW
25
SSW
25
SSW
20
SSE
25
ESE
25
ESE
20
E
10
E
0
ENE
10
S
20
SSE
20
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
on
cross-
on
offcross-
off
cross-
off
crossglasscross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
glasscross-
off
offoff
High Tide
/ height (m)
12:38AM
4.85
1:12PM
4.84
1:50AM
4.86
2:23PM
4.90
2:55AM
5.06
3:23PM
5.13
3:48AM
5.38
4:12PM
5.44
4:33AM
5.74
4:53PM
5.77
5:12AM
6.09
5:31PM
6.07
5:49AM
6.41
Low Tide
/ height (m)
6:58AM
2.34
7:35PM
2.31
8:13AM
2.29
8:44PM
2.19
9:17AM
2.07
9:41PM
1.93
10:09AM
1.75
10:28PM
1.60
10:52AM
1.41
11:08PM
1.27
11:31AM
1.10
11:44PM
0.98
12:07PM
0.83
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Mon
19
Sunrise-8:15--8:15--8:14--8:12--8:12--8:11--8:11-
Sunset--4:38--4:40--4:42--4:44--4:45--4:46--4:49
part cloud
light rain
cloud
clear
part cloud
cloud
rain showers
cloud
light rain
rain showers
rain showers
rain showers
mod rain
light rain
light rain
part cloud
clear
part cloud
part cloud
part cloud
cloud
Rain (mm)
-1----6-1112731------
Temp. °C10108767998799899877788
Feels °C (?)782223377433344356533
  • 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 12 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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