Mawgan Porth Surf Break

Lat Long: 50.47° N 5.04° W

Mawgan Porth Surf Forecast and Surf Report

Issued: 12 am 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Mawgan Porth sea temperature is
18.0°C
1.9° 

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 12 Sep 2026:

  • Most powerful swell: Sunday 13 Sep, 4AM (local time) - 6ft (1.8m), 10s period, W swell with 635 kJ wave energy.

Best Forecast Surf Conditions for Mawgan Porth this week:

The most powerful waves expected at Mawgan Porth in the next 16 days are 1.8m 10s and forecast to arrive on Sunday (Sep 13) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Sun 13th Sep)6ft (1.8m) 10s

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


The Lowdown

Right then, let's have a look at what's on the cards. I'm not gonna lie to you, it's a pretty quiet run ahead for Mawgan Porth. This is a river break, so it needs things to line up just right, and for most of this 16-day window, they just don't.

We start off on Saturday the 12th with a bit of a thumping. There's a moderate 4ft swell from the west, but it's short period stuff at 8 seconds and the wind is a messy cross-onshore at 16 mph. The water temp is about average for the time of year, but the combo of weak wave energy (214) and onshore wind makes it a write-off. Sunday the 13th sees a bit more size, 6ft on the face, but it's onshore straight from the west at 12 mph, so it's just a lumpy mess. That moderate energy (574) never gets the chance to clean up.

There's not a single standout period here. From the 12th right through to the 27th, every single session gets a big fat zero from the forecast. That's a solid 16 days of “poor surf conditions” with no relief. The swell direction is always from the west or west-northwest, which is the optimum direction for the spot, but the wind just won't play ball. It's constantly cross-onshore or onshore, often from the southwest or northwest, keeping things choppy and blown out.

The best you could hope for is the morning of Monday the 21st of September. The wind finally goes cross-offshore from the north-northeast at 12 mph, and the conditions turn clean. But the wave heights have dropped right off to a tiny 2ft with a long period of 14 seconds. That long-period groundswell works alright at a river mouth, but the combined energy is weak (224). It’s a knee-high dribbler, not a proper surf. Tuesday the 22nd is even smaller with 1ft and wind energy barely registering at 35. Then from the 23rd to the 27th it stays tiny, under 2ft, with light winds but nothing with any grunt.

Forget about it being too big for beginners; it never gets above 6ft and that’s on the very last day, Sunday the 27th, when it's howling onshore at 19 mph again, making for dangerous, lumpy junk. There’s no point even looking at the kite surfing angle because the wind is consistently too light or cross-onshore for that too.

Sometimes you get a run of dud forecasts, and this is one of them. The whole 16-day window is a flat spell. A blank run like this is more normal for a river break that needs a lot of help. The swell energy never cracks into triple digits in a meaningful way until the 13th, and even then the wind ruins it. Keep the board waxed, but don't hold your breath. Forecasts can change, but this one looks pretty locked in.

Rusty

Short Range Forecast

Moderate rain (total 13mm), heaviest on Sat night. Warm (max 21°C on Mon morning, min 14°C on Fri night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Very mild (max 18°C on Mon night, min 14°C on Tue night). Mainly fresh winds.

Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
AM
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
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)
1.2
W
8
1.7
W
8
1.8
W
10
1.7
W
10
1.4
W
10
1.2
W
10
1.1
W
9
1.1
W
8
1
W
8
1.2
W
8
1.6
W
10
1.7
W
8
1.6
W
8
1.6
W
11
1.4
W
10
0.8
W
10
1.5
WNW
7
1.3
W
9
1.2
WNW
13
1.1
W
12
1
W
12
Wave Graph
Metric surfscale
Energy kJ
201
345
625
567
377
262
189
169
127
195
479
364
300
595
408
120
192
293
499
359
289
Wind (km/h)
25
SW
30
SW
25
SW
20
WSW
15
W
15
SW
20
SW
20
SW
15
SSW
25
NW
30
NW
25
NNW
30
NNW
25
NW
25
W
30
NW
30
NW
20
NW
20
W
20
W
15
SW
Wind State
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
on
cross-on
High Tide
6:36AM6.73m
6:54PM6.99m
7:12AM6.75m
7:29PM6.87m
7:47AM6.62m
8:04PM6.58m
8:20AM6.34m
8:38PM6.17m
8:54AM5.95m
9:13PM5.69m
9:30AM5.49m
9:51PM5.16m
10:10AM5.00m
10:36PM4.66m
Low Tide
12:54PM0.03m
1:15AM-0.02m
1:28PM0.07m
1:48AM0.15m
2:02PM0.27m
2:19AM0.45m
2:34PM0.59m
2:50AM0.85m
3:07PM1.01m
3:22AM1.30m
3:42PM1.48m
3:59AM1.78m
4:26PM1.95m
cloud
part cloud
rain showers
cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
rain showers
rain showers
part cloud
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:50
6:52
6:54
6:56
6:56
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:42
7:38
7:37
7:35
7:32
7:30
7:28
 mm
13
1
1
Temp °C
18
19
18
18
19
19
21
21
18
16
16
16
15
15
16
16
16
16
16
16
15
Feels °C
13
15
16
17
19
19
20
19
17
13
11
12
10
10
12
11
10
11
12
12
13
  • Map Icons:
  • Break
  • 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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