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Surf Forecasts:

Porthtowan surfForecast / Cornwall (North) / UK

information circle48hr Weather and Surf, issued 11 pm 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 4AM is: 1.8m 12s primary swell from a West direction (forecast issued at 11:00pm January 17). The wind direction is predicted to be offshore and the swell rating is 3.

Time (GMT) & DateWave HeightWave Period
Morning (18 Jan)5ft (1.6m)11s
Afternoon (18 Jan)4.5ft (1.3m)11s
Evening (18 Jan)3.5ft (1.1m)10s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
18
Monday
19
Tuesday
20
9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM
Rating
(10 max)
4
3
3
3
2
2
1
2
2
1
1
2
2
3
4
5
!
4
2
0
0
0
!
!
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.4
W
2.1
W
1.9
W
1.7
W
1.6
W
1.5
W
1.3
W
1.2
W
1.1
W
1.1
W
1.1
W
1.1
W
1.3
W
1.6
W
1.6
WNW
3
W
3.5
W
3
W
2.5
WNW
2.5
WNW
3
W
3
W
4.5
WSW
3.5
W
Period(s) (?)121212111111111010101012111118161616161616161514
Wave
Graph
(?)Metric surfscale
Energy kJ (?)170912259867115965153723002422372373194015641633489052544585352930723966413287705017
Wind
(km/h)
10
SE
15
SE
10
SE
5
SE
5
SE
10
SSE
5
SW
5
SW
5
SSW
10
S
10
SSE
10
SSE
10
SSE
15
SSE
15
SSE
15
SSE
20
WNW
20
S
30
S
50
SSE
50
SSE
25
WSW
25
SW
25
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffcross-
off		crossglasscross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		offcross-
off		cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
on		crosscross-
off
High Tide
/ height (m)
4:51AM
5.61
5:10PM
5.56
5:27AM
5.89
5:45PM
5.78
6:02AM
6.12
Low Tide
/ height (m)
10:51PM
1.16
11:15AM
0.99
11:28PM
0.89
11:51AM
0.75
12:03AM
0.68
12:26PM
0.58
Sunday
18
Monday
19
Tuesday
20
Sunrise----8:11-------8:11-------8:10---
Sunset------4:50-------4:51-------4:52-
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
rain showers
light rain
clear
cloud
light rain
mod rain
heavy rain
light rain
clear
Rain (mm)
---------------11--16175-
Temp. °C88887998766679108768910888
Feels °C (?)5556577653224565210-20222
  • 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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