
Surf Forecasts:
Mawgan Porth surf forecast from 3 Sep 2026:
- Best quality surf: Saturday 5 Sep, 10AM (local time) - 4.5ft (1.4m), 11s period, WNW swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 7AM (local time) - 7.5ft (2.3m), 13s period, W swell with 1,755 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 10AM (local time) - 4.5ft (1.4m), 11s period with WNW 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 10AM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.1m and 14s. 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 2.3m 13s and forecast to arrive on Monday (Sep 07) at 7AM. 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 Sunday (Sep 06) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sat 5th Sep) | 4.5ft (1.4m) 11s |
| Best Surf | 10AM (Sat 5th Sep) | 4.5ft (1.4m) 11s |
| Most Powerful | 7AM (Mon 7th Sep) | 7.5ft (2.3m) 13s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s happening at Mawgan Porth.
We’re staring down a rough start. Thursday (3rd September) is a total loss with howling cross-onshore winds and junk surf. Friday (4th September) isn’t much better – the swell’s around, but it’s onshore and lumpy, not worth getting wet for. We’re looking at a couple of real poor days.
The first real window opens on Saturday morning (5th September). The wind goes glassy – flat calm – and we’ve got a clean 5ft groundswell from the WNW with an 11-second period. That’s a proper setup for a river-mouth break like this. The longer period gives the waves some shape and push, though it can make things a bit straight at the beach. The water is a touch warmer than normal for the time of year, running about 64°F. This is your best shot in the first week, no contest. The afternoon turns a bit cross-onshore, so get out there early.
The rest of the first week and into the next is a mess of onshore winds and chop. Sunday (6th September) is tiny and weak. Monday (7th) and Tuesday (8th) pump in some serious size – 8ft to 8ft with combined energy (1480 and 1106) – but it’s all blown out with strong cross-onshore or onshore winds. That’s expert-only size, and the wind is going to trash it. For a river break, that’s more of a kite-surfing session than a clean paddle.
We hit a gap of several days after that with no real recommendations. The surf goes small and poor.
Then, circling back to Tuesday (15th September) morning and afternoon – we get another interesting one. A clean offshore wind (NNE) and a very long-period groundswell (15-16 seconds) from the WNW. That’s some serious energy (1035 in the afternoon). This is a long-range standout, so take it with a pinch of salt, but the potential is there. The long period will favour a river-mouth break, giving it good shape, but at 5ft that’s still a solid, punchy wave. The Wednesday (16th) after that still has some cleanish swell, but the wind turns onshore, so it’s not as good.
The final days of the outlook fade into tiny, weak surf with nothing to get excited about.
So, bottom line: for the cleanest, most fun waves, get yourself down there Saturday morning (5th September). That’s the real standout. For a more powerful, long-period option with clean wind, keep an eye on Tuesday (15th September) – but it’s a long way out, so don’t get your hopes up too high just yet.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu night. Warm (max 20°C on Thu night, min 15°C on Fri night). Winds decreasing (strong winds from the WSW on Thu night, calm by Sat afternoon). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Mon night. Warm (max 21°C on Sun morning, min 14°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | W 8 | W 8 | WSW 8 | W 8 | W 9 | W 9 | WNW 11 | W 11 | W 10 | W 9 | W 9 | W 9 | W 12 | W 12 | W 9 | WNW 9 | WNW 8 | W 8 | W 8 | W 8 | W 7 |
Wave Graph | |||||||||||||||||||||
266 | 263 | 438 | 671 | 549 | 430 | 460 | 326 | 122 | 57 | 52 | 104 | 1480 | 1074 | 949 | 1106 | 851 | 576 | 195 | 130 | 70 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | cross-on | glassy | cross-on | cross-off | cross-off | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 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 | 4:31AM5.74m | 4:52PM6.23m | |||||||||
Low Tide | 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 | 10:53AM0.87m | 11:22PM0.49m | ||||||||
6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | |
— | 8:00 | — | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 5 | — | 1 | 1 | — | — | 10 |
Temp °C | 19 | 19 | 20 | 17 | 16 | 16 | 15 | 16 | 16 | 21 | 21 | 18 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 14 | 14 |
Feels °C | 16 | 15 | 16 | 14 | 12 | 12 | 15 | 15 | 14 | 16 | 18 | 18 | 12 | 13 | 12 | 10 | 11 | 11 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 15 | — | WSW 14 | WSW 14 | WNW 12 | WNW 11 | W 11 | W 10 | W 9 | W 9 | W 9 | W 12 | W 12 | W 9 | — | — | W 8 | W 8 | W 8 | N 5 |
21 | 23 | — | 20 | 20 | 77 | 460 | 326 | 122 | 57 | 52 | 104 | 1480 | 1074 | 949 | — | — | 576 | 195 | 130 | 5 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | WSW 14 | SW 14 | N 4 | SW 13 | SW 13 | SW 13 | W 15 | — | — | — | — | — | — | N 5 | N 6 | W 13 |
— | — | — | — | — | 19 | 7 | 1 | 7 | 7 | 6 | 39 | — | — | — | — | — | — | 20 | 15 | 3 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 13 | — | — | — | SW 12 | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | 7 | — | — | — | 6 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | WSW 8 | W 8 | W 9 | W 9 | — | — | SE 2 | SSE 3 | S 3 | WSW 4 | — | — | — | WNW 9 | WNW 8 | N 6 | — | — | W 7 |
266 | 263 | 438 | 671 | 549 | 430 | — | — | 1 | 10 | 3 | 8 | — | — | — | 1106 | 851 | 50 | — | — | 70 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 298 | 213 | 140 | 237 | 93 | 0 | 4 | 1 | 95 | 205 | 6 | 93 | 110 | 44 | 93 | 237 | 44 | 49 | 43 | 4 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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.









