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Surf Forecasts:

Porthtowan surfForecast / Cornwall (North) / UK

information circle48hr Weather and Surf, issued 5 am Wednesday 21 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 10AM is: 2.0m 13s primary swell from a West direction and 2.4m 8s secondary swell from a South-southwest direction (forecast issued at 05:00am January 21). An open ocean swell of 0.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (21 Jan)7ft (2.1m)13s
Afternoon (21 Jan)10ft (3.0m)9s
Evening (21 Jan)10ft (3.0m)10s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Wednesday
21
Thursday
22
Friday
23
Sat
24
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
2
2
2
3
3
4
4
!
!
!
0
0
!
!
1
2
2
!
!
!
!
!
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
W
2.5
W
2.1
W
1.8
W
3
SSW
3
SSW
3
SSW
2
WSW
4
WSW
5
WSW
6
WSW
5.5
W
5
W
4.5
W
3.5
W
3
W
2.2
W
3
SSW
6.5
SW
8.5
SW
8
SW
6
SW
7
SW
6
WSW
Period(s) (?)1313131391010161618161615151414149181717181617
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2948216615371121135215761514197290761493516996136971118477285493307218951254250884137734705230892522019884
Wind
(km/h)
30
SSE
45
ESE
30
S
35
S
25
S
20
SSE
20
SSE
20
SSE
10
SE
10
SW
25
WNW
25
WNW
30
W
15
SW
20
SE
50
SE
35
S
35
S
35
S
40
S
40
SSE
45
SSE
55
SE
60
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
off		cross-
off		cross-
off		cross-
off		offoffoffcrosscross-
on		cross-
on		cross-
on		cross-
off		offoffcross-
off		cross-
off		cross-
off		cross-
off		offoffoffoff
High Tide
/ height (m)
6:37AM
6.27
6:54PM
6.02
7:11AM
6.32
7:30PM
6.01
7:48AM
6.27
8:08PM
5.92
Low Tide
/ height (m)
1:00PM
0.49
1:11AM
0.51
1:35PM
0.48
1:45AM
0.56
2:10PM
0.56
Wednesday
21
Thursday
22
Friday
23
Sat
24
Sunrise--8:08-------8:07-------8:07-----
Sunset----4:54-------4:55-------4:58---
light rain
light rain
rain showers
light rain
light rain
rain showers
cloud
part cloud
cloud
light rain
mod rain
rain showers
rain showers
part cloud
part cloud
light rain
light rain
light rain
light rain
thunderstorm
rain showers
rain showers
light rain
light rain
Rain (mm)
142311---1711--321111111
Temp. °C8911111110998889977887777776
Feels °C (?)205466555523332-30-1-2-3-3-4-5-7
  • 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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