Mawgan Porth Surf Break

Lat Long: 50.47° N 5.04° W

Mawgan Porth Surf Forecast and Surf Report

Issued: 6 pm 20 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 20 Aug 2026:

  • Best quality surf: Wednesday 26 Aug, 7PM (local time) - 3.5ft (1.0m), 10s period, W swell with cross-offshore winds.
  • Most powerful swell: Friday 21 Aug, 1AM (local time) - 4.5ft (1.4m), 9s period, W swell with 339 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 0.5m 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 1.4m 9s and forecast to arrive on Friday (Aug 21) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s 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 7PM (Wed 26th Aug)3.5ft (1.0m) 10s
Most Powerful 1AM (Fri 21st Aug)4.5ft (1.4m) 9s

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


The Lowdown

Right folks, Rusty here. Let's have a look at what's on the cards for our stretch of coast. I gotta be straight with you – it's a grim outlook. We're looking at a run of poor conditions that stretches right across the sixteen days, with barely a window worth paddling out for.

We kick off on Thursday the 20th of August and it's not pretty. The water is sitting at 66°, which is a touch warmer than normal for this time of year, but don't let that fool you. The wave energy is moderate at best with a combined energy of 648, but a 7 ft WNW swell is getting torn apart by a strong 16 mph cross-onshore wind. It's choppy and messy – a total write-off.

Friday the 21st offers no relief. Smaller swell around 3 ft, but the wind is still howling from the north at 16 mph, putting a nasty cross-shore chop on it. Forget it.

Saturday morning the 22nd is the only time in the whole run that might get you thinking. It's small, just 2 ft, but the wind goes light and cross-offshore from the ENE at 6 mph. The water cleans right up. You'll be on a foamie or a log, but the waves are surfable. The combined energy is only 118, and the period is a bit short at 10 seconds, so there's not much grunt. It's not a standout by any means, it's just the least offensive option in a desert. If you're desperate, that's your window, but keep the expectations on the floor.

After that Saturday morning blip, we're back into the doldrums. Sunday the 23rd has a tiny 0.7 ft swell with a long period of 14 seconds. That groundswell won't do much here at the beach break, and it'll just be fat and weak. The rest of the week into late August and early September is a relentless cycle of onshore winds and choppy sea states. We get some strong offshore winds on the 24th, but the swell is a pathetic 0.7 ft – you'll be scratching for nothing. There's a glimmer on Thursday the 27th morning with glassy conditions and a 3 ft swell, but it's still weak. The combined energy is 177, which is feeble, and it's really just small and weak.

The swell tries to pick up around the 29th of August with a 7 ft WNW swell and combined energy of 597, but it's accompanied by a 16 mph onshore wind, making it a complete washing machine. That kind of size with that wind is for kites, not paddles. The same story repeats on the 3rd of September with a 7 ft swell and 31 mph near-gale wind – blown out completely.

Look, I hate to be the bearer of bad news, but there are no good surf options in this whole 16-day window. The only surfable moment is that Saturday morning on the 22nd, and it's barely a ripple. This is one of those stretches where it's best to leave the boards in the shed, watch the forecasts, and hope for a change. It tends not to stay poor for long, but for now, it's a hard pass.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu afternoon. Very mild (max 18°C on Sun morning, min 14°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 17mm), heaviest on Tue afternoon. Warm (max 22°C on Mon afternoon, min 17°C on Sun night). Winds increasing (light winds from the ESE on Sun night, strong winds from the ESE by Mon night).

Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
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
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
WNW
9
1.4
W
9
0.9
W
8
0.8
W
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
0.2
WSW
9
0.2
WSW
13
0.2
WSW
13
0.3
WNW
10
0.4
WNW
10
0.6
W
9
0.6
W
9
0.8
W
8
1
W
9
Wave Graph
Metric surfscale
Energy kJ
627
339
116
86
32
65
40
24
19
46
38
8
18
17
20
31
60
56
89
168
Wind (km/h)
25
NW
20
N
25
N
25
NNW
15
N
10
ENE
20
NNE
20
NNE
5
ENE
15
N
15
NE
35
E
40
ESE
40
ESE
35
SE
25
SSE
10
SSW
25
S
10
SSW
10
ESE
Wind State
cross-on
cross
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-off
off
off
off
cross-off
cross-off
cross
cross
cross-on
cross-off
High Tide
11:25PM4.73m
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
Low Tide
5:13PM1.94m
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
rain showers
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
part cloud
mod rain
light rain
light rain
thunderstorm
thunderstorm
<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
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:30
8:29
8:27
8:24
8:22
8:20
8:17
 mm
1
2
6
4
5
2
14
Temp °C
17
16
15
15
15
17
17
16
18
19
18
21
22
20
20
19
18
18
20
17
Feels °C
12
12
10
10
12
13
13
13
16
17
16
13
14
14
17
16
17
15
19
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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