Surf Forecasts:
Mawgan Porth surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 23 Aug, 7PM (local time) - 1.5ft (0.5m), 9s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 1AM (local time) - 7.5ft (2.3m), 8s period, W swell with 701 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 7PM (local time) - 1.5ft (0.5m), 9s period with WSW 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 Sunday (Aug 23) at 7PM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.4m 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 2.3m 8s and forecast to arrive on Thursday (Aug 20) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Aug 23) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 23rd Aug) | 1.5ft (0.5m) 9s |
| Best Surf | 7PM (Sun 23rd Aug) | 1.5ft (0.5m) 9s |
| Most Powerful | 1AM (Thu 20th Aug) | 7.5ft (2.3m) 8s |
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’s on the cards for Mawgan Porth over the next couple of weeks.
First up, fair warning – we’re looking at a long stretch of quiet to poor conditions before anything really gets going. The water is sitting at 67°, which is a good 4° warmer than usual for this time of year; nice for a paddle but it doesn’t bring any waves with it.
From Sunday the 16th right through to Thursday the 27th of August, it’s pretty much a write-off. You’ll see small slop in the 1ft to 3ft range, but with periods under 8 seconds and a lot of cross and onshore wind, it’s just not worth suiting up. The combined energy stays low, often between 10 and 139, so there’s hardly any push. The onshore winds mid-week (18th-20th) pick up to 19 mph or so, with solid rain showers on Thursday and swell building to 7ft – but that’s just messy, lumpy, blown-out stuff.
There’s a tiny glimmer on the morning of Saturday the 22nd and Sunday the 23rd, when a light cross-offshore from the NNE and NE cleans things up, but the swell is only 1ft to 2ft with an 8 to 10 second period. Pretty much flat, even if the ocean looks neat.
The real blank patch runs from about the 24th to the 27th – we’re talking tiny waves, 0.3ft to 1.0ft, with some glassy moments on Thursday the 27th morning under a light W breeze. But still, no real surf.
Alright, now for the one stand out in the whole forecast. It’s a long way off, mind you. On Friday the 28th of August, the morning session looks like the pick of the bunch. You’ve got a clean sky, light 6 mph SSW breeze clipping it cross-onshore, and a 6ft swell from the WSW with a 9-second period. The combined energy hits 453 (moderate), so there’s some proper weight behind it. This one is a beginner-to-intermediate kind of size – nothing too scary, but enough to get a decent ride. The trade-off is that wind is just a little cross-onshore, so expect a few ripples on the face, but it’s still the best we’ve got over the whole run. After that, it gets lumpy again under a fresh NW wind on Saturday the 29th, with the swell holding around 6ft but the energy climbing to 750 (moderate). It’ll be choppy, though – not the clean lines you’d hope for.
Real talk: if you’re itching for a wave, that Friday the 28th is the only serious shout in the whole outlook. Everything else is flat or blown out. Keep an eye on the long range – it can shift, but right now it’s a quiet spell for Mawgan Porth.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue night. Very mild (max 19°C on Sun night, min 16°C on Sun morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Wed afternoon. Very mild (max 17°C on Wed morning, min 14°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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 7 | W 7 | W 7 | WNW 6 | WNW 8 | W 7 | WNW 6 | W 6 | WNW 6 | WNW 6 | W 7 | W 8 | WNW 9 | WNW 9 | W 9 | W 8 | W 8 | W 8 | W 10 | W 10 | NNW 5 |
Wave Graph | |||||||||||||||||||||
17 | 25 | 8 | 55 | 127 | 77 | 134 | 104 | 160 | 176 | 320 | 701 | 662 | 603 | 230 | 117 | 76 | 49 | 35 | 48 | 39 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross | cross-on | on | on | on | on | on | on | on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-off | cross | cross-off |
High Tide | 8:37PM6.67m | 8:56AM6.26m | 9:15PM6.25m | 9:33AM5.88m | 9:53PM5.75m | 10:13AM5.43m | 10:34PM5.22m | 10:57AM4.97m | 11:25PM4.73m | 11:55AM4.57m | 00:36AM4.36m | 1:20PM4.36m | 2:10AM4.29m | ||||||||
Low Tide | 2:35PM0.27m | 2:58AM0.40m | 3:11PM0.60m | 3:33AM0.81m | 3:48PM1.02m | 4:08AM1.28m | 4:27PM1.49m | 4:48AM1.75m | 5:13PM1.94m | 5:40AM2.17m | 6:19PM2.31m | 6:58AM2.45m | 7:54PM2.45m | ||||||||
6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | |
— | 8:37 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | |
mm | — | — | — | — | — | — | — | — | 1 | — | 2 | 3 | 2 | 2 | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 19 | 19 | 18 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 16 |
Feels °C | 15 | 15 | 18 | 19 | 17 | 17 | 15 | 15 | 14 | 11 | 11 | 12 | 12 | 11 | 13 | 12 | 10 | 11 | 10 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | WNW 6 | WNW 8 | N 3 | SW 17 | SW 17 | SW 17 | WNW 9 | SW 16 | WSW 15 | SW 14 | WSW 14 | W 9 | W 8 | W 8 | W 8 | NNW 5 | W 10 | NNW 5 |
17 | 25 | 8 | 55 | 127 | 1 | 11 | 11 | 12 | 49 | 10 | 23 | 8 | 20 | 230 | 117 | 76 | 49 | 21 | 48 | 39 | |
Swell 2 Height (m) Direction Period (s) | WSW 8 | W 18 | — | WNW 9 | SW 18 | W 16 | — | — | — | SW 16 | — | — | — | — | N 6 | SW 13 | SW 13 | W 11 | W 8 | WSW 15 | W 9 |
6 | 7 | — | 26 | 12 | 5 | — | — | — | 10 | — | — | — | — | 21 | 7 | 7 | 10 | 20 | 21 | 26 | |
Swell 3 Height (m) Direction Period (s) | — | — | W 18 | W 18 | — | — | — | — | — | — | — | — | — | — | WSW 14 | SW 16 | W 12 | SW 16 | W 10 | SW 12 | WSW 15 |
— | — | 6 | 6 | — | — | — | — | — | — | — | — | — | — | 19 | 10 | 3 | 10 | 35 | 6 | 21 | |
Wind waves Height (m) Direction Period (s) | N 4 | N 4 | W 4 | — | — | W 7 | WNW 6 | W 6 | WNW 6 | WNW 6 | W 7 | W 8 | WNW 9 | WNW 9 | — | N 5 | N 5 | N 5 | — | N 5 | — |
9 | 2 | 7 | — | — | 77 | 134 | 104 | 160 | 176 | 320 | 701 | 662 | 603 | — | 43 | 34 | 12 | — | 34 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 244 | 342 | 241 | 237 | 221 | 298 | 243 | 1145 | 304 | 537 | 221 | 586 | 135 | 237 | 49 | 237 | 237 | 48 | 264 | 274 | 227 |
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.










