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Surf Forecasts:

Porthtowan surfForecast / Cornwall (North) / UK

information circle48hr Weather and Surf, issued 5 am Sunday 18 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
10.3° C
 (Which is normal for this time of year)

How big are the waves at Porthtowan today?

The current surf forecast for Porthtowan at 11AM is: 1.5m 11s primary swell from a West direction (forecast issued at 05:00am January 18). The wind direction is predicted to be glassy and the swell rating is 2.

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
Wed
21
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
2
2
1
2
2
1
1
2
2
2
0
3
!
4
1
0
2
4
!
3
2
!
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
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
1.2
W
1.5
W
1.9
W
1.7
WNW
3
W
3.5
W
3
W
2.5
WNW
2.4
WNW
2.5
WNW
2.5
W
3.5
W
3
W
3
W
4
WSW
Period(s) (?)121111111110101010121110181616161616161615141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)986711596448372300242237239390543738170753225254458535292836327736444652418038696756
Wind
(km/h)
10
SE
5
SE
5
SE
5
S
5
SW
5
WSW
5
SSW
10
S
15
S
15
S
15
S
25
S
25
W
15
W
10
SSW
20
S
40
SSE
55
SSE
15
WSW
15
SSW
25
SSW
30
S
45
SSW
35
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offglassoffglasscrossglasscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
on		cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		cross
High Tide
/ height (m)
5:10PM
5.56
5:27AM
5.89
5:45PM
5.78
6:02AM
6.12
6:19PM
5.94
Low Tide
/ height (m)
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
Wed
21
Sunrise--8:11-------8:11-------8:10-----
Sunset----4:50-------4:51-------4:52---
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
cloud
clear
clear
cloud
light rain
mod rain
light rain
light rain
cloud
light rain
rain showers
Rain (mm)
------------1----21013-11
Temp. °C887899876779876699778889
Feels °C (?)56567764233432210-33321-21
  • 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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