Mawgan Porth Surf Break

Lat Long: 50.47° N 5.04° W

Mawgan Porth Surf Forecast and Surf Report

Issued: 6 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mawgan Porth sea temperature is
19.1° C
2.2° 

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


Mawgan Porth surf forecast from 15 Aug 2026:

  • Best quality surf: Friday 21 Aug, 10AM (local time) - 3.5ft (1.0m), 8s period, W swell with glassy winds.
  • Most powerful swell: Thursday 20 Aug, 10AM (local time) - 5ft (1.6m), 8s period, WNW swell with 341 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 10AM (local time) - 3.5ft (1.0m), 8s period with W swell.

Best Forecast Surf Conditions for Mawgan Porth this week:

The surf forecast for Mawgan Porth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 10AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.2m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mawgan Porth in the next 16 days are 1.6m 8s and forecast to arrive on Thursday (Aug 20) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Aug 23) at 1AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Fri 21st Aug)3.5ft (1.0m) 8s
Best Surf10AM (Fri 21st Aug)3.5ft (1.0m) 8s
Most Powerful10AM (Thu 20th Aug)5ft (1.6m) 8s

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


The Lowdown

Alright, let's get this out there. It’s a tough stretch of surf ahead for us here. Looking at the whole 16-day window, I gotta be straight with you – there’s no proper swell on the horizon. Nothing that’s gonna have you calling in sick for work. It’s a flat spell, plain and simple.

We’re looking at a solid run of poor, weak waves for the first week or so. From the 15th right through to the 20th, it’s all small, short-period junk. We’re talking about waist-high slop at best, with a lot of cross-shore chop messing it up. The wind’s all over the place, mostly onshore or cross, which is gonna make it feel even messier out there. On the 18th and 19th there’s a bit more energy in the water, with readings around 150-159, but it’s wind-swell, period under 7 seconds, and it’s just gonna be crumbly and weak.

Then we get a little tease on the 21st. The wind drops out to nothing – straight glass. There’s a small 3ft swell from the W with an 8-second period, and that’s the best conditions we see for a while. But it’s still just an average, ordinary wave. Not gonna be winning any awards.

After that, the whole thing just bottoms out again. The swell drops off a cliff. We’re into tiny, knee-high slop for days on end. The energy readings are pathetic – down to single digits and low double digits. It’s just a dead, flat ocean. The wind gets offshore and clean on the 22nd and 23rd, which would be great if there was anything to ride, but a clean 1ft wave is still just a clean 1ft wave. No push, no power.

There’s a faint glimmer around the 27th and 28th where it goes glassy again with a little bit of 2ft swell showing up, but again, it’s marginal. And then there’s a possible little bump on the 29th with an offshore wind and the energy climbing back over 100, but it’s still only getting to 3ft. This is all just enough to make you itch, but not enough to scratch it.

For the beginner listening, honestly, for most of this nothing’s worth the paddle. It’s too small and weak to have any fun. The total lack of any decent period or size for the first half of the month makes it a write-off. It’s the kind of stretch where the sea looks pretty but does nothing.

The one day that stands out as the best of a bad bunch is the morning of Friday the 21st. If you can get out there at dawn, the ocean is gonna be like a millpond. The air’s clean, there’s no wind, and while the waves are small, they’ll be the cleanest and most rideable of the whole period. It’s not a standout by any stretch, but it’s the only real window of “clean” surf we’ve got. Don’t expect much, and you might just scratch an itch. But for the rest of it, leave the boards in the car and save your energy. It’s a poor outlook. The water temp is running at 66°, which is 4° warmer than usual for this time of year – a bit of a silver lining if you’re keen for a swim.

Honestly, after the first week, it’s a blank. Don’t think about it. Just go do something else with your time. We won't see any proper swell until the end of the month, and even that's a long-range call that's far from certain.

Rusty out.

Short Range Forecast

Mostly dry. Warm (max 20°C on Mon morning, min 16°C on Sat night). Mainly fresh winds.

Days 5-7 Weather Summary

Some drizzle, heaviest during Wed night. Very mild (max 18°C on Tue afternoon, min 17°C on Tue night). Wind will be generally light.

Sat
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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)
0.8
W
8
0.7
W
8
0.4
W
7
0.5
W
7
0.3
W
7
0.4
WNW
9
0.9
WNW
8
0.9
W
7
1.3
WNW
6
1.2
WNW
6
1.3
W
6
1.4
WNW
6
1.2
WNW
6
1.7
WNW
7
1.6
WNW
8
1.3
WNW
9
1
W
9
1
W
8
0.8
W
8
0.5
W
8
Wave Graph
Metric surfscale
Energy kJ
74
54
17
25
8
28
101
79
139
112
143
149
115
285
341
283
160
140
88
35
Wind (km/h)
30
N
25
N
15
N
15
NW
15
WNW
20
NW
15
WNW
20
W
25
WNW
25
WNW
20
W
20
WNW
25
WNW
20
W
20
W
15
WNW
10
WNW
0
N
20
N
25
NNE
Wind State
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
on
on
cross-on
on
on
cross-on
cross-on
glassy
cross
cross-off
High Tide
7:58PM6.95m
8:18AM6.55m
8:37PM6.67m
8:56AM6.26m
9:15PM6.25m
9:33AM5.88m
9:53PM5.75m
10:13AM5.43m
10:34PM5.22m
10:57AM4.97m
11:25PM4.73m
11:55AM4.57m
00:36AM4.36m
Low Tide
2:22AM0.10m
2:35PM0.27m
2:58AM0.40m
3:11PM0.60m
3:33AM0.81m
3:48PM1.02m
4:08AM1.28m
4:27PM1.49m
4:48AM1.75m
5:13PM1.94m
5:40AM2.17m
6:19PM2.31m
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
cloud
clear
part cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:11
6:13
6:15
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:39
8:37
8:37
8:35
8:32
8:30
8:29
 mm
1
1
Temp °C
17
16
17
18
19
20
18
19
19
18
17
18
17
17
18
17
17
18
18
17
Feels °C
12
11
15
16
18
19
17
17
17
15
14
14
12
12
15
14
15
18
14
13
  • 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 Mawgan Porth Surf forecast

The above surf forecast table for Mawgan Porth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mawgan Porth can be found by selecting the local surf guide option on the grey menu. Our Mawgan Porth 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 (Mawgan Porth) 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 Mawgan Porth 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.

Are you planning a holiday in North Cornwall? If you are looking for accommodation near Mawgan Porth, camping, hotels and holiday cottages in North Cornwall, consider staying in Newquay which is 8 km (5 miles) away. Other places in and around North Cornwall where you can find information about places to rent, and car hire include Padstow which is 11 km (7 miles) away, Bodmin, Truro and Saint Austell.

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