Mawgan Porth Surf Break

Lat Long: 50.47° N 5.04° W

Mawgan Porth Surf Forecast and Surf Report

Issued: 12 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mawgan Porth sea temperature is
18.8° 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 21 Aug 2026:

  • Best quality surf: Saturday 22 Aug, 4AM (local time) - 1.5ft (0.5m), 8s period, W swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 1AM (local time) - 5.5ft (1.7m), 10s period, W swell with 557 kJ wave energy.
  • Next surfable swell (1★+): Saturday 22 Aug, 4AM (local time) - 1.5ft (0.5m), 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 Saturday (Aug 22) at 4AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.6m and 5s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mawgan Porth in the next 16 days are 1.7m 10s and forecast to arrive on Friday (Aug 28) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Tuesday (Aug 25) at 1AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 22nd Aug)1.5ft (0.5m) 8s
Best Surf 4AM (Sat 22nd Aug)1.5ft (0.5m) 8s
Most Powerful 1AM (Fri 28th Aug)5.5ft (1.7m) 10s

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


The Lowdown

Alright, Rusty here again, same story, different numbers. Let's run through it for Mawgan Porth over the next couple of weeks.

Honestly, it's a rough outlook. There's no standout swell in the whole 16-day window, so I'm not gonna bullshit you and call something a winner when it's not. We're lookin' at a long stretch of flat, weak surf, especially from this Sunday the 23rd right through to the end. It's a quiet period, but that's just how it goes here sometimes; the ocean can always change its mind.

Startin' with today, Friday the 21st of August, we got a weak, messy W swell around 3ft, but it's gettin' hammered by a strong N wind at 15 mph. It's blown-out, cross-shore chop – total rubbish.

Tomorrow, Saturday the 22nd, is the only real chance. Early morning, the wind goes light offshore from the E, and that 2ft W swell cleans right up. The period is short at 10 seconds, and the energy is low, so it's gutless, small stuff. It's rideable if you're on a log or a foamie and just need to get wet, but that's as good as it gets. The wind picks up later and the swell drops to 2ft – worse.

From Sunday the 23rd onward, it's a slow death. The swell drops to ankle-biters, sometimes with a long period (14 seconds) but no real push, and the energy readings are tiny. The wind does go offshore a few days, like Monday the 24th and 25th, but when the swell is only 0.5ft to 1ft, clean conditions don't help.

We see a bump in energy around Thursday the 28th of August, with swell jumpin' to 6ft to 7ft and energy readings climbin' way up. But that's all short-period windswell (6 to 8 seconds) with a howlin' W to WSW onshore wind. It's gonna be a lumpy, messy, stormy mess. For a spot like this, a beach-and-river setup under those winds? That's kite-surfing conditions, not surf conditions.

The last week into September is flat – tiny swell, weak energy, onshore winds. There's a tease of offshore wind and a 14-second groundswell on Friday the 4th of September, but it's only 0.5ft. Hopeless.

So, the truth is, there's nothin' to get excited about. The only window is early Saturday the 22nd for a tiny, clean wave.

Best option: Saturday morning, August 22nd at Mawgan Porth, for a tiny, clean 2ft W swell under a light offshore E breeze. It's not much, but it's the best we've got.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Thu night. Very mild (max 18°C on Sun afternoon, min 14°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 12mm), heaviest on Tue night. Warm (max 22°C on Mon afternoon, min 16°C on Sun night). Winds increasing (light winds from the ENE on Sun night, strong winds from the ESE by Mon night).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
1
0
0
0
0
1
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
WNW
8
0.5
W
8
0.6
W
10
0.5
W
9
0.4
W
9
0.2
WSW
14
0.4
SW
13
0.4
WSW
10
0.3
WSW
9
0.2
WSW
13
0.2
WSW
13
0.3
WNW
10
0.4
WNW
10
0.4
WNW
9
0.8
SSW
8
1.1
SW
7
1
W
8
0.9
W
8
0.8
SW
8
1.7
W
10
Wave Graph
Metric surfscale
Energy kJ
119
90
32
65
39
24
19
45
38
16
17
17
20
31
27
75
105
132
104
67
557
Wind (km/h)
25
N
25
NNW
15
N
10
E
20
NNE
20
NNE
10
NE
15
N
10
ENE
35
ESE
35
ESE
40
E
45
SE
25
SSE
25
SE
30
S
40
SSW
20
SE
25
SSE
25
SW
35
SW
Wind State
cross
cross-on
cross
off
cross-off
cross-off
cross-off
cross
off
off
off
off
cross-off
cross-off
cross-off
cross
cross-on
cross-off
cross-off
cross-on
cross-on
High Tide
11:55AM4.57m
00:36AM4.36m
1:20PM4.36m
2:10AM4.29m
2:52PM4.47m
3:30AM4.52m
3:57PM4.83m
4:24AM4.90m
4:44PM5.27m
5:04AM5.32m
5:21PM5.72m
5:40AM5.72m
5:55PM6.12m
Low Tide
5:40AM2.17m
6:19PM2.31m
6:58AM2.45m
7:54PM2.45m
8:37AM2.43m
9:24PM2.25m
9:51AM2.12m
10:24PM1.87m
10:41AM1.71m
11:07PM1.44m
11:20AM1.28m
11:43PM1.03m
11:54AM0.90m
00:16AM0.67m
rain showers
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
rain showers
rain showers
thunderstorm
clear
thunderstorm
thunderstorm
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:18
6:20
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:29
8:27
8:24
8:22
8:20
8:17
8:15
 mm
1
4
5
3
3
1
1
9
Temp °C
15
15
16
17
17
17
17
18
18
21
22
20
21
19
18
20
19
16
19
19
17
Feels °C
10
10
14
13
13
14
14
15
16
13
14
12
17
16
15
13
12
13
15
14
17
  • 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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