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Surf Forecasts:

Porthtowan surfForecast / Cornwall (North) / UK

information circle48hr Weather and Surf, issued 5 am Saturday 17 Jan 2026 GMT
Forecast update in hr  min  s Forecast update imminent
Porthtowan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porthtowan sea temperature is
10.4° C
 (Which is normal for this time of year)

How big are the waves at Porthtowan today?

The current surf forecast for Porthtowan at 7AM is: 3.5m 14s primary swell from a West direction (forecast issued at 05:00am January 17). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (GMT) & DateWave HeightWave Period
Morning (17 Jan)11ft (3.5m)14s
Afternoon (17 Jan)10ft (3.0m)13s
Evening (17 Jan)7.5ft (2.3m)12s

Table - waves today at Porthtowan. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Saturday
17
Sunday
18
Monday
19
Tue
20
3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM
Rating
(10 max)
!
!
!
3
3
4
4
3
3
3
2
2
2
2
2
2
1
2
2
3
4
4
!
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
4
W
3.5
W
3.5
W
3
W
3
W
2.5
W
2.3
W
2.1
W
1.9
W
1.7
W
1.6
W
1.4
W
1.3
W
1.2
W
1.1
W
1.1
W
1.1
W
1.1
W
1.2
W
1.6
W
1.4
WNW
1.9
WNW
3.5
W
3.5
W
Period(s) (?)151414131313121212111111111010101011111118161616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)611849814245316926782240156912259867115964483723002422372372843575991136186355775254
Wind
(km/h)
15
S
15
S
15
S
20
S
15
SSE
10
SE
15
SE
15
SE
15
ESE
10
ESE
10
ESE
5
SSE
5
SW
5
WSW
5
SSW
5
S
10
S
5
SSE
5
SE
5
SSE
10
SSE
15
SE
15
SSE
25
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffoffoffoffoffglassglassglasscross-
off		cross-
off		cross-
off		offoffcross-
off		offoffoffcross-
on
High Tide
/ height (m)
4:32PM
5.30
4:51AM
5.61
5:10PM
5.56
5:27AM
5.89
5:45PM
5.78
Low Tide
/ height (m)
10:36AM
1.29
10:51PM
1.16
11:15AM
0.99
11:28PM
0.89
11:51AM
0.75
Saturday
17
Sunday
18
Monday
19
Tue
20
Sunrise--8:12-------8:11-------8:11-----
Sunset----4:47-------4:50-------4:51---
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
part cloud
cloud
part cloud
clear
part cloud
part cloud
clear
cloud
Rain (mm)
------------------------
Temp. °C777101088887891097777799888
Feels °C (?)333565445568975544476452
  • 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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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Porthtowan surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Porthtowan at:
surf-forecast.com

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