Porthtowan Surf Break

Lat Long: 50.28° N 5.25° W

Porthtowan 48 hour detailed Surf Forecast

Issued: 6 pm 22 Sep 2026 (local time)

Forecast update in  hr  min

Today's Porthtowan sea temperature is
17.7°C
2.1° 

Porthtowan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Porthtowan today (23 Sep):

  • Morning surf: Morning surf (23 Sep, local time) - 6ft (1.9m), 14s period with W swell.
  • Afternoon surf: Afternoon surf (23 Sep, local time) - 5.5ft (1.7m), 13s period with W swell.
  • Evening surf: Evening surf (23 Sep, local time) - 4.5ft (1.4m), 12s period with WNW swell.

The current surf forecast for Porthtowan at 2AM is: 1.6m 15s primary swell from a West direction and 1.3m 11s secondary swell from a West direction (forecast issued at 06:00pm September 22). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (23 Sep)6ft (1.9m)14s
Afternoon (23 Sep)5.5ft (1.7m)13s
Evening (23 Sep)4.5ft (1.4m)12s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Thu morning, min 14°C on Wed afternoon). Wind will be generally light.

Tue
22
Wednesday
23
Thursday
24
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
1
2
3
3
4
2
1
0
0
1
1
2
2
2
1
1
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
W
12
1.3
W
12
0.8
W
18
1.4
WNW
15
2
W
15
2
W
14
1.9
W
14
1.8
W
13
1.7
W
13
1.5
W
13
1.4
WNW
12
1.3
WNW
12
1.2
WNW
12
1.1
W
11
1
W
11
0.9
WNW
11
0.8
W
11
0.8
W
10
0.7
W
10
Wave Graph
Metric surfscale
Energy kJ
397
449
410
892
1709
1617
1422
1138
1003
764
579
494
418
302
242
198
149
141
100
Wind (km/h)
5
NW
10
N
5
NNE
5
WNW
5
NNW
10
WNW
15
NW
15
NNW
20
N
15
NNE
10
NE
5
E
10
SE
15
SE
20
SE
20
SSE
20
SSE
10
SSE
10
SSE
Wind State
on
cross-on
glassy
glassy
glassy
on
on
on
cross-on
cross-on
cross
glassy
off
off
off
off
cross-off
cross-off
cross-off
High Tide
3:22PM4.66m
3:49AM4.74m
4:07PM5.14m
4:29AM5.21m
4:44PM5.63m
Low Tide
9:48PM1.81m
10:04AM1.66m
10:30PM1.33m
10:43AM1.20m
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:20
7:17
7:15
 mm
Temp °C
18
16
16
16
16
16
17
16
15
14
14
15
14
14
16
20
20
18
17
Feels °C
18
16
17
16
17
15
15
14
13
12
12
14
13
12
13
17
17
17
16
  • 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
How to use the Wavefinder 

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.


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