Porthtowan Surf Break

Lat Long: 50.28° N 5.25° W

Porthtowan Surf Forecast and Surf Report

Issued: 12 am 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Porthtowan sea temperature is
16.6° C
1.0° 

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


Porthtowan surf forecast from 10 Jul 2026:

  • Best quality surf: Friday 10 Jul, 10AM (local time) - 3ft (0.9m), 9s period, W swell with cross-offshore winds.
  • Most powerful swell: Friday 10 Jul, 10AM (local time) - 3ft (0.9m), 9s period, W swell with 127 kJ wave energy.
  • Next surfable swell (1★+): Friday 10 Jul, 10AM (local time) - 3ft (0.9m), 9s period with W swell.

Best Forecast Surf Conditions for Porthtowan this week:

The surf forecast for Porthtowan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 10) at 10AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.2m and 3s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Porthtowan in the next 16 days are 0.9m 9s and forecast to arrive on Friday (Jul 10) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Saturday (Jul 11) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Fri 10th Jul)3ft (0.9m) 9s
Best Surf10AM (Fri 10th Jul)3ft (0.9m) 9s
Most Powerful10AM (Fri 10th Jul)3ft (0.9m) 9s

Table - best surf conditions forecast for Porthtowan over the next 16 days.


Alright, grab a brew and listen up. It's Rusty here, and I've got to be straight with you – the next couple of weeks are looking pretty grim for Porthtowan. We're looking at a long, dry spell with barely a ripple worth getting wet for, so don't bother rushing to wax your board.

We kick off on Friday the 10th with a tiny 3ft WNW swell, but the energy is weak (135). The wind is a cross-off, which is about the only positive, but it's just not enough to get excited about. The water is about average for the time of year.

From there, it's a real struggle. Saturday the 11th through to the end of the third week is a write-off. We're looking at days of poor conditions with small, weak swells and cross-off breezes that just don't do the place any favours. The swell drops to nothing, down to 0.7ft and 1ft, and the energy readings are pathetic, often below 100. There's a bit of a spike on the 18th with a 4ft to 4ft northerly swell, but it's accompanied by a messy cross-shore and onshore wind, churning it up into a choppy, lumpy mess. It's not surfable, it's just a mess. The wind is so strong on the 19th and 20th, with a fresh breeze and fresh cross-onshore, that this setup is honestly looking more interesting for kite surfing than paddle surfing.

The stand-out, and I use that term loosely, comes way out on Friday the 24th of July. We finally see a jump in the swell energy, hitting 322, with a 4ft to 5ft WNW swell arriving. The period is a reasonable 10 seconds, which is a groundswell, so it should have some shape. The problem is the wind will be cross-onshore, and by the afternoon it's a moderate breeze, so it'll be choppy. It's a "best of a bad bunch" situation, but it's a long way off, so the forecast is less certain. If that wind switches to a light offshore, we might have a sloppy, fun session. But as it stands, don't hold your breath. Saturday the 25th is similar, but still cross-shore. The whole stretch is a bleak one, I'm afraid.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 28°C on Sat morning, min 19°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Wed morning. Warm (max 26°C on Tue afternoon, min 18°C on Sun night). Winds decreasing (fresh winds from the E on Sun night, light winds from the ENE by Tue night).

Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
W
9
0.8
W
9
0.6
W
9
0.7
W
10
0.6
W
9
0.8
N
6
0.7
N
5
0.6
N
5
0.6
N
6
0.2
SSW
19
0.2
SSW
19
0.6
N
6
0.8
N
6
0.6
N
5
0.4
W
10
0.4
W
9
0.4
W
9
0.8
N
5
0.6
N
5
0.2
SSW
15
0.7
N
5
Wave Graph
Metric surfscale
Energy kJ
127
94
55
92
60
41
29
20
23
37
37
22
42
19
31
28
25
34
21
21
29
Wind (km/h)
15
E
15
E
10
ENE
25
ENE
25
E
25
E
30
E
30
E
35
E
30
ENE
30
E
15
ESE
20
E
25
E
20
E
20
E
15
NE
15
N
10
NW
15
NNW
15
NNW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
on
on
on
High Tide
1:52PM5.14m
2:26AM5.28m
3:02PM5.37m
3:35AM5.50m
4:06PM5.71m
4:37AM5.81m
5:04PM6.09m
5:32AM6.09m
5:56PM6.43m
6:23AM6.30m
6:46PM6.67m
7:11AM6.39m
7:33PM6.74m
Low Tide
7:41AM1.44m
8:15PM1.45m
8:53AM1.32m
9:29PM1.21m
10:02AM1.07m
10:35PM0.86m
11:03AM0.75m
11:34PM0.50m
11:57AM0.46m
00:27AM0.21m
12:47PM0.24m
1:17AM0.04m
1:34PM0.15m
2:03AM0.03m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
thunderstorm
clear
cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:22
5:22
5:24
5:24
5:26
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:30
9:29
9:29
9:28
9:27
9:25
9:24
 mm
2
3
1
2
Temp °C
27
27
24
28
28
26
27
28
25
22
24
22
25
26
23
22
22
18
20
20
17
Feels °C
25
25
24
24
24
24
23
24
21
17
22
21
20
22
22
19
22
17
20
19
15
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Porthtowan Surf forecast

The above surf forecast table for Porthtowan provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porthtowan can be found by selecting the local surf guide option on the grey menu. Our Porthtowan surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Porthtowan) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Porthtowan may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Porthtowan is 8 km (5 miles) from Camborne. If you plan a holiday in North Cornwall, look for hotels and other accommodation in Camborne. Camborne has rooms for a wide range of budgets as well as car hire and transport links.

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