Mawgan Porth Surf Break

Lat Long: 50.47° N 5.04° W

Mawgan Porth Surf Forecast and Surf Report

Issued: 12 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Mawgan Porth sea temperature is
18.2°C
1.6° 

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 2 Sep 2026:

  • Best quality surf: Saturday 5 Sep, 7PM (local time) - 3.5ft (1.0m), 10s period, W swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 7PM (local time) - 7ft (2.1m), 12s period, W swell with 1,186 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 7PM (local time) - 3.5ft (1.0m), 10s 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 (Sep 05) at 7PM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.3m and 4s. 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 2.1m 12s and forecast to arrive on Monday (Sep 07) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Sep 06) at 10AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sat 5th Sep)3.5ft (1.0m) 10s
Best Surf 7PM (Sat 5th Sep)3.5ft (1.0m) 10s
Most Powerful 7PM (Mon 7th Sep)7ft (2.1m) 12s

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


The Lowdown

Alright, let’s break it down for Mawgan Porth. It’s a river mouth spot, open to west-northwest swells, and it’s fairly consistent, so we usually get a bit of action. The water temperature is about normal for the season.

The first week is a bit of a bust. The 2nd, 3rd, and 4th of September are all onshore or cross-onshore, with swell heights from 3 ft to 7 ft, but the wind is trashing it. The wave energy is moderate to strong (values between 108 and 562), but it’s all lumpy and choppy. Not worth getting wet.

The 5th looks a little more promising. A light north wind at 3 mph, with a 4 ft swell from the WNW and a 10-second period. The energy is moderate (356), but it’s a cross-shore, so the surface is just okay. It’s marginal. The afternoon drops off.

Sunday the 6th is tiny, with 2 ft and 2 ft swells, clean but weak (energy down to 85 and 58). Not worth the effort.

Then we get a big energy spike on the 7th and 8th. The 7th morning has a 5 ft swell with a very long 13-second period, and energy at a strong 899. The 7th afternoon hits 7 ft with a 12-second period and a massive 1113 energy reading. But the wind is cross-on or onshore, so it’s a blown-out mess. That’s a real bummer, because that’s proper groundswell power. The 8th is similar, with moderate energy (524, 325) but still onshore.

The rest of the week into the 10th is a mix of onshore wind and moderate swell, all poor. The 11th and 12th drop right off, with tiny 2 ft to 2 ft swells and very low energy, down to 46 on the 12th afternoon. A real flat spell.

Here’s the standout. Sunday, 13th September morning – that’s the one. The wind swings to a light 6 mph north-northeasterly, giving us a clean, cross-offshore breeze. The swell is 5 ft from the west, with an 8-second period. The energy is moderate (273), and the conditions are clean. That’s the best of the whole run. It’s a good size for most, and the wind will keep it tidy. Crowds can be a thing here, so expect a few people out.

Then we go quiet again. The 14th and 15th are tiny, with swells under 2 ft and energy barely registering – 85 and 27. The 16th morning is glassy, with a 2 ft, 10-second period swell, but it’s very small (energy 82). The 16th afternoon has a 4 ft, 12-second long-period swell, but it’s cross-shore, so it’s a marginal call.

The final highlight is Thursday, 17th September morning. A clean, cross-offshore wind from the northeast at 6 mph, with a 5 ft swell from the west, 10-second period, and moderate energy (541). That’s another decent session, but it’s a long way out, so keep an eye on it.

So, overall, a rough first week, a flat spell mid-month, and then two clean windows around the 13th and 17th. The 13th is the real pick of the bunch.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu night. Warm (max 20°C on Thu night, min 16°C on Thu night). Winds increasing (light winds from the SW on Tue night, fresh winds from the SW by Thu night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Sun afternoon, min 15°C on Fri night). Winds increasing (light winds from the N on Sat morning, fresh winds from the SE by Sun morning).

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
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
1
0
1
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
W
6
1.6
WSW
7
1.6
W
8
1.5
W
8
1.6
W
8
1.7
WSW
8
2
W
8
1.7
W
9
1
W
9
1.3
WNW
10
1.1
W
10
0.9
W
10
0.7
W
9
0.6
W
9
0.6
W
16
1.6
W
13
2
W
12
2.1
W
10
1.7
W
10
1.4
W
9
1.2
W
9
Wave Graph
Metric surfscale
Energy kJ
81
292
292
256
292
383
542
435
169
349
255
148
78
52
186
865
1113
955
524
325
229
Wind (km/h)
35
SSW
30
WSW
25
SW
20
SW
30
SW
40
SW
20
WNW
20
NW
15
WNW
5
N
10
NNW
10
SE
30
SE
25
SSE
10
S
20
NW
25
WNW
25
W
25
WSW
30
WSW
25
WSW
Wind State
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross
cross-on
cross-off
cross-off
cross-off
cross
cross-on
on
on
cross-on
cross-on
cross-on
High Tide
9:03AM6.22m
9:24PM6.14m
9:46AM5.87m
10:12PM5.68m
10:38AM5.44m
11:12PM5.19m
11:48AM5.04m
00:35AM4.84m
1:21PM4.91m
2:12AM4.87m
2:52PM5.18m
3:32AM5.24m
4:00PM5.69m
Low Tide
3:15PM0.71m
3:38AM0.92m
4:00PM1.10m
4:27AM1.36m
4:58PM1.53m
5:33AM1.79m
6:21PM1.87m
7:09AM2.02m
8:06PM1.87m
8:47AM1.83m
9:32PM1.48m
9:59AM1.38m
10:33PM0.96m
part cloud
part cloud
part cloud
cloud
cloud
light rain
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:35
6:37
6:39
6:41
6:41
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:02
8:00
7:59
7:57
7:54
7:52
7:50
 mm
1
3
6
Temp °C
19
18
19
19
19
20
16
16
16
15
15
16
20
21
18
16
16
17
17
17
18
Feels °C
15
15
18
18
16
15
13
12
14
15
14
12
15
16
16
13
12
14
13
13
16
  • 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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