Mawgan Porth Surf Break

Lat Long: 50.47° N 5.04° W

Mawgan Porth Surf Forecast and Surf Report

Issued: 6 am 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Mawgan Porth sea temperature is
18.1°C
1.7° 

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 6 Sep 2026:

  • Best quality surf: Friday 11 Sep, 4PM (local time) - 3.5ft (1.1m), 9s period, W swell with glassy winds.
  • Most powerful swell: Monday 7 Sep, 7AM (local time) - 6.5ft (2.0m), 14s period, W swell with 1,585 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 4PM (local time) - 3.5ft (1.1m), 9s 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 (Sep 11) at 4PM. The primary swell is predicted to be 1.1m and 9s period. 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 2.0m 14s and forecast to arrive on Monday (Sep 07) at 7AM. 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+) 4PM (Fri 11th Sep)3.5ft (1.1m) 9s
Best Surf 4PM (Fri 11th Sep)3.5ft (1.1m) 9s
Most Powerful 7AM (Mon 7th Sep)6.5ft (2.0m) 14s

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


The Lowdown

Alright, folks, Rusty here. Let's have a look at what Mawgan Porth is serving up over the next couple of weeks. Honestly, it's a bit of a mixed bag, and we've got a long stretch of waiting ahead.

The whole forecast period starts off pretty grim. We're looking at a solid week of poor surf conditions from the 6th right through to the 13th of September. The swell is there, sometimes even a bit of size, but the wind is just killing it. It's mostly onshore or cross-onshore, making a mess of things. You'll see a few pulses of energy, like a big one on the 7th with combined swell energy hitting 1487, but with onshore winds, that's just a washing machine. Not worth paddling out.

The first real glimmer of hope comes on Friday the 11th in the afternoon. The wind drops to glassy, absolutely flat calm, and we get a small 4ft swell from the west with a 9-second period. The combined energy is a weak 177, and the report calls it "surfable waves but very ordinary conditions." It's not going to be epic, but it's the first clean window we've had. For a beginner-friendly river break like this, that glassy wind is a major positive. The water temp is running about 65°, which is a touch warmer than normal for this time of year, so that's a nice bonus.

Then we go into another rough patch from the 12th to the 18th. More onshore winds, more chop. There's a big pulse of energy on the 17th, with a 8ft swell and a 1304 combined energy reading, but it's coming with onshore wind again, so it's a no-go. That size, over 8ft, is really only for experts anyway, and with those winds, it's just messy.

Finally, we get a couple of standout sessions right at the tail end of the outlook. The best of the whole forecast is shaping up for the weekend of the 20th and 21st of September. Saturday the 19th sees clean, cross-offshore winds from the northeast and north, with a 5ft and 4ft west swell. The combined energy is moderate, around 379 to 419. The conditions are described as clean, which is music to my ears. Then Sunday the 20th is the real winner. We get a 7ft swell from the west, with a 10-second period, and combined energy jumping up to 981. The wind is a clean cross-offshore from the east-southeast and southeast. That is proper surfable size, good energy, and clean conditions. This spot is fairly exposed to the west-northwest swell, so this direction is ideal. It is a river break, so it's better for a longboard or a funshape, and with that size, it'll be working. Keep in mind, this spot can get crowded sometimes, and it's a beginner-friendly break, so it might be busy. The morning of Monday the 21st still has clean cross-offshore wind, but the swell drops back to 4ft.

So, if you can wait, the standout is absolutely the 20th of September at Mawgan Porth. That's the one to circle on the calendar. For the rest of the time, you're better off doing something else.

Rusty.

Short Range Forecast

Light rain (total 6mm), mostly falling on Mon night. Warm (max 22°C on Sun afternoon, min 15°C on Mon night). Winds increasing (light winds from the SSW on Sun night, fresh winds from the SW by Mon night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Thu morning. Very mild (max 19°C on Fri afternoon, min 15°C on Wed night). Wind will be generally light.

Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
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
1
1
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)
0.7
W
9
0.6
W
9
0.7
W
16
2.1
W
13
1.9
W
12
2.4
W
7
2.2
W
9
2
W
9
2.4
WNW
9
2
WNW
8
1.5
W
8
1.1
W
8
1.2
W
6
1.7
W
8
1.6
W
9
1.2
W
9
1.1
W
9
0.9
W
8
1.1
WSW
8
2.2
W
8
2.1
W
10
Wave Graph
Metric surfscale
Energy kJ
78
55
254
1487
1106
553
792
646
839
477
287
153
119
329
445
225
177
100
145
594
813
Wind (km/h)
30
SSE
20
SSW
15
SW
25
WNW
20
WSW
35
SW
30
WNW
30
WNW
35
NW
30
NW
25
WNW
20
WSW
25
SSW
20
WSW
20
SW
15
SSW
0
SW
10
SE
25
SSW
30
WSW
15
W
Wind State
cross-off
cross
cross-on
cross-on
on
cross-on
on
cross-on
cross-on
cross-on
on
on
cross
on
cross-on
cross
glassy
cross-off
cross-on
on
on
High Tide
1:21PM4.91m
2:12AM4.87m
2:52PM5.18m
3:32AM5.24m
4:00PM5.69m
4:31AM5.74m
4:52PM6.23m
5:18AM6.20m
5:36PM6.65m
5:59AM6.54m
6:16PM6.92m
6:36AM6.73m
6:54PM6.99m
Low Tide
8:06PM1.87m
8:47AM1.83m
9:32PM1.48m
9:59AM1.38m
10:33PM0.96m
10:53AM0.87m
11:22PM0.49m
11:38AM0.44m
00:03AM0.14m
12:17PM0.15m
00:40AM-0.03m
12:54PM0.03m
1:15AM-0.02m
clear
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
6:43
6:45
6:47
6:48
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:54
7:52
7:50
7:47
7:45
7:44
7:42
 mm
4
1
1
2
Temp °C
21
22
18
17
17
16
16
16
16
16
16
16
18
17
17
17
19
18
20
18
16
Feels °C
17
19
18
13
13
11
10
10
9
11
11
12
15
14
14
16
20
18
17
14
14
  • 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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