Surf Forecasts:
Mawgan Porth surf forecast from 31 Aug 2026:
- Best quality surf: Saturday 5 Sep, 7PM (local time) - 3.5ft (1.0m), 10s period, W swell with glassy winds.
- Most powerful swell: Monday 31 Aug, 10PM (local time) - 6ft (1.8m), 10s period, W swell with 598 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 0.2m and 4s. 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 1.8m 10s and forecast to arrive on Monday (Aug 31) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Sep 06) at 10PM.
| Wave Type | Time (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 | 10PM (Mon 31st Aug) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, mates, Rusty here with the outlook for our stretch of coast.
Look, I’ll be straight with you—this 16-day run is a tough one for paddle surfing. The first ten days or so are pretty much a write-off, with a lot of onshore and cross-onshore wind messing up the waves. The only real window of interest is a long-range pulse that builds in the second week.
Right now, the water is sitting at 65°, which is a touch warmer than normal for this time of year.
Our main focus is Mawgan Porth (river break). It’s a fairly consistent beginner spot, but it’s going to be a frustrating watch for a while.
The first notable surf doesn’t show up until Sunday, September 6th, with a small 3ft swell from the west at 9 seconds. The wind will be a light cross-offshore from the SSE, so it’ll be clean, but the combined energy is weak at 119. It’s surfable, but nothing to get excited about.
There’s another marginal window on Tuesday, September 8th, with a 5ft west swell at 11 seconds, and light onshore wind from the WNW. The combined energy is moderate at 432, but the conditions are only rated as marginal.
The real standout, and the one to watch, is Monday, September 14th. We’ve got a solid 6ft swell from the west at 10 seconds in the morning. The combined energy is strong at 1263, and the wind is a gentle onshore from the west. The afternoon gets even better: a 6ft swell from the WNW with a very long period of 15 seconds, pushing the combined energy to 1563. This is groundswell, and it’s going to be powerful. Because of the long period, it’ll be best at a point or reef, but it could still line up well here. It’s a promising but less certain call being this far out.
After that, it gets ugly again. By Tuesday, September 15th, a strong breeze from the WSW with 25-28 mph winds will smash the 8ft to 10ft swell into a messy, cross-onshore mess. That’s expert-only territory and not even worth it.
So, to sum it up: the first week and a half is a dud. The best bet is the 14th, but keep your expectations in check given the timeframe. For the rest of the time, you might find more joy with a kite than a surfboard.
Rusty, signing off.
Short Range ForecastSome drizzle, heaviest during Mon morning. Very mild (max 19°C on Wed afternoon, min 16°C on Mon morning). Winds decreasing (fresh winds from the WNW on Mon morning, light winds from the WSW by Mon night). | Days 4-6 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 20°C on Thu morning, min 15°C on Fri night). Winds decreasing (fresh winds from the SW on Thu night, calm by Sat afternoon). | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 10 | W 10 | W 10 | W 9 | W 9 | W 8 | W 6 | WSW 7 | WSW 8 | W 8 | W 8 | W 8 | W 8 | W 9 | WNW 10 | WNW 11 | W 10 | W 10 | W 9 | W 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1352 | 998 | 407 | 188 | 120 | 104 | 35 | 232 | 232 | 253 | 266 | 351 | 304 | 334 | 370 | 356 | 260 | 122 | 58 | 38 | 21 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | on | cross-off | cross-off | cross-off | cross |
High Tide | 8:07PM6.69m | 8:25AM6.45m | 8:43PM6.48m | 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 | ||||||||
Low Tide | 2:03PM0.29m | 2:23AM0.32m | 2:37PM0.44m | 2:58AM0.56m | 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 | ||||||||
 |  |  | |  | | |  | | | |  | | |  | | | | | | | |
 | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — |
 | — | 8:07 | — | — | 8:06 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 17 | 17 | 18 | 17 | 18 | 19 | 18 | 20 | 19 | 19 | 17 | 17 | 16 | 16 | 16 | 16 | 20 | 20 | 18 |
Feels °C | 10 | 11 | 15 | 15 | 14 | 16 | 13 | 15 | 16 | 18 | 17 | 15 | 14 | 14 | 13 | 15 | 14 | 15 | 16 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | — | W 10 | W 10 | W 9 | — | W 8 | W 6 | WSW 16 | SW 15 | WSW 15 | WSW 15 | WSW 15 | W 8 | W 9 | WNW 13 | WNW 11 | W 10 | W 10 | W 9 | W 9 | W 8 |
| kJ | — | 998 | 407 | 188 | — | 104 | 35 | 24 | 8 | 21 | 23 | 23 | 304 | 334 | 70 | 356 | 260 | 122 | 58 | 38 | 21 |
Swell 2 Height (m) Direction Period (s) | — | N 6 | N 5 | N 5 | SW 17 | SW 16 | WNW 7 | — | — | — | — | — | WSW 14 | WSW 14 | WSW 14 | SW 14 | SW 13 | N 5 | SW 13 | SW 13 | SW 12 |
| kJ | — | 31 | 13 | 2 | 12 | 10 | 18 | — | — | — | — | — | 20 | 20 | 19 | 7 | 7 | 2 | 7 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | W 18 | W 18 | — | — | SW 16 | — | — | — | — | — | — | — | — | — | — | SW 13 | — | — | — |
| kJ | — | — | 6 | 6 | — | — | 10 | — | — | — | — | — | — | — | — | — | — | 7 | — | — | — |
Wind waves Height (m) Direction Period (s) | W 10 | — | — | — | W 9 | — | SSW 3 | WSW 7 | WSW 8 | W 8 | W 8 | W 8 | — | — | WNW 10 | — | — | — | SSE 3 | SE 4 | SSE 4 |
| kJ | 1352 | — | — | — | 120 | — | 4 | 232 | 232 | 253 | 266 | 351 | — | — | 370 | — | — | — | 6 | 12 | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 237 | 140 | 7 | 7 | 43 | 2 | 486 | 221 | 7 | 389 | 221 | 237 | 7 | 237 | 44 | 7 | 7 | 0 | 8 | 205 | 22 |
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.
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