Port Isaac surfForecast / Cornwall (North) / UK

information circle12 Day Weather and Surf, issued 5 pm Friday 09 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
9.7° C
(Which is slightly cooler than normal)
Nearby Cam: 6km away, Polzeath beach community Webcam


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 Saturday (Jan 10) at 6PM. The primary swell is predicted to be 1.7m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Port Isaac in the next 12 days are 3.0m 14s and forecast to arrive on Friday (Jan 16) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Friday (Jan 16) at 3PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sat 10th Jan)5.5ft (1.7m) 11s
Best Surf12AM (Tue 13th Jan)7.5ft (2.3m) 11s
Most Powerful 9PM (Fri 16th Jan)10ft (3.0m) 14s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 10mm), heaviest on Fri afternoon. Very mild (max 13°C on Sun afternoon, min 7°C on Fri afternoon). Winds increasing (light winds from the W on Sat afternoon, strong winds from the SSW by Sun afternoon).

Days 3-6 Weather Summary Heavy rain (total 20mm), heaviest during Mon night. Very mild (max 12°C on Tue morning, min 7°C on Wed night). Winds decreasing (fresh winds from the S on Mon night, calm by Thu morning).

Fri
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
2
1
0
0
1
2
2
4
3
1
1
1
1
0
1
3
2
3
Swell
Height Map
Wave Height (m) & direction (?)
3
WNW
3
W
3
WNW
2
W
1.3
W
1.2
WSW
1.7
WSW
2.5
W
3
W
2.5
W
2.3
W
2.4
W
2
W
1.4
W
1
W
0.9
W
0.8
W
1.5
W
1.4
WNW
2.1
W
1.6
W
Period(s) (?)121312121110101112121112121111101211181616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2047264621601098389276495151426822015135815571103482220159178507136123521265
Wind
(km/h)
40
NW
40
NW
25
NNW
10
W
30
SSE
40
S
40
S
35
SW
25
SSW
30
SW
10
SSE
30
S
25
SSW
10
NE
10
NNE
5
NNW
10
W
10
W
5
ENE
35
ESE
30
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
oncross-
on
offoffcross-
off
cross-
off
cross-
off
cross-
off
offoffcross-
off
cross-
on
cross-
on
glasscrosscrosscrosscross-
off
off
High Tide
/ height (m)
9:48PM
5.70
10:10AM
5.76
10:36PM
5.34
11:00AM
5.33
11:31PM
5.03
12:01PM
4.99
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
Low Tide
/ height (m)
3:45PM
1.25
3:59AM
1.50
4:30PM
1.65
4:48AM
1.88
5:21PM
2.00
5:47AM
2.19
6:23PM
2.24
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
Fri
09
Saturday
10
Sunday
11
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Sunrise--8:17--8:17--8:15--8:15--8:15--8:14--8:12
Sunset4:34--4:35--4:37--4:37--4:38--4:40--4:42--
rain showers
rain showers
clear
part cloud
cloud
light rain
light rain
light rain
part cloud
rain showers
mod rain
mod rain
rain showers
part cloud
part cloud
cloud
part cloud
part cloud
cloud
heavy rain
heavy rain
Rain (mm)
34---111-11081------1812
Temp. °C78889121312121111121110998991010
Feels °C (?)-2-13527566546687758734
  • 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 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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