Surf Forecasts:
Mawgan Porth surf forecast from 29 Aug 2026:
- Most powerful swell: Monday 31 Aug, 1AM (local time) - 10ft (3.0m), 9s period, W swell with 1,528 kJ wave energy.
Best Forecast Surf Conditions for Mawgan Porth this week:
The most powerful waves expected at Mawgan Porth in the next 16 days are 3.0m 9s and forecast to arrive on Monday (Aug 31) at 1AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Mon 31st Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s cookin’ over the next couple of weeks for our stretch of coast. Honestly, it’s a pretty grim picture for a while. There’s no surf worth mentioning until we’re solidly into September, so we’re looking at a big dry spell kicking off right now.
The first hint of something rideable doesn't show up until Tuesday morning, the 1st of September. Even then, it’s a small, weak 4 ft swell from the west with a short period of 9 seconds, and the energy is barely there (196). The wind is offshore from the west, which is a positive, but the whole setup is just too weak and mushy. Really, it’s a pass.
After that, the conditions stay poor through the first week. There’s a bit of a bump in size around the 4th and 5th of September, with waves hitting 8 ft and 4 ft, but the wind is either cross-onshore or just not cooperating. The water temp is sitting at 65°, which is a touch warmer than normal for this time of year.
The real standout, the only one I’d even point a toe at, is Mawgan Porth. Early on Wednesday morning, the 9th of September, we get a 5 ft west swell with a clean, light offshore breeze from the WNW. The period is a solid 9 seconds. The energy picks up to a decent 524, and for a moment, it looks like it might actually be okay. This break is a river mouth, exposed to the WNW, so it lines up nicely with the swell direction. It’s rated as beginner-friendly and fairly consistent, but on a Wednesday morning you might get a bit of company—crowds can be “sometimes” an issue.
Don’t get too excited about the bigger stuff. On the 8th of September, we see a massive 15 ft west swell with a long period of 11 seconds. That’s a lot of water (energy readings of 4876), but the wind is either onshore or cross-onshore, making it a total washing machine. That’s more of a kite surfer’s dream than a paddle surfer’s. And even on the 9th, the period is long enough that this river break might get a bit too walled-off.
For the rest of the second week, it fades back into small, weak, and messy. A few small clean windows on the 10th and 11th are ruined by strong, lumpy cross-shore winds. There’s just no consistency to get excited about.
So, your best bet? If you’re desperate, keep an eye on Wednesday the 9th at Mawgan Porth, early morning, for a small but potentially clean session. Everything else? Let’s hope the forecasts change.
Rusty.
Short Range ForecastHeavy rain (total 38mm), heaviest during Fri night. Very mild (max 19°C on Fri night, min 16°C on Mon morning). Winds decreasing (strong winds from the WNW on Sat afternoon, light winds from the WNW by Mon afternoon). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Warm (max 20°C on Wed morning, min 16°C on Mon night). Winds increasing (light winds from the WSW on Mon night, fresh winds from the WSW by Wed afternoon). | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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) | SW 7 | WSW 9 | W 9 | WSW 9 | WSW 8 | W 9 | W 9 | W 10 | W 9 | W 9 | W 8 | W 7 | WSW 5 | WSW 7 | W 8 | W 8 | W 8 | W 8 | W 9 | WSW 6 | W 9 |
Wave Graph | |||||||||||||||||||||
260 | 1122 | 699 | 427 | 574 | 1528 | 1263 | 891 | 340 | 224 | 204 | 69 | 72 | 512 | 572 | 454 | 408 | 383 | 299 | 188 | 856 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross-on | on | on | on | on | cross-on | on | on |
High Tide | 6:44AM6.33m | 7:00PM6.66m | 7:17AM6.50m | 7:32PM6.75m | 7:50AM6.54m | 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 | |||||||
Low Tide | 12:59PM0.37m | 1:19AM0.25m | 1:30PM0.26m | 1:50AM0.22m | 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 | ||||||||
6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | |
— | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — | |
mm | 7 | 1 | — | 9 | 2 | 3 | — | — | — | — | — | 1 | 1 | 1 | — | — | — | 2 | 4 | — | — |
Temp °C | 19 | 17 | 17 | 18 | 18 | 17 | 16 | 17 | 17 | 17 | 18 | 17 | 20 | 19 | 19 | 18 | 17 | 17 | 16 | 17 | 17 |
Feels °C | 15 | 10 | 13 | 13 | 12 | 10 | 10 | 13 | 15 | 14 | 15 | 16 | 16 | 15 | 15 | 13 | 12 | 12 | 14 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | — | — | W 9 | — | — | — | — | W 10 | W 9 | W 9 | SW 17 | W 7 | SW 16 | — | SW 15 | WSW 15 | WSW 15 | WSW 15 | W 9 | W 9 | WSW 14 |
— | — | 699 | — | — | — | — | 891 | 340 | 224 | 12 | 69 | 10 | — | 8 | 21 | 23 | 23 | 299 | 127 | 19 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNW 5 | N 5 | — | W 8 | — | — | — | — | — | — | WSW 14 | W 15 | — |
— | — | — | — | — | — | — | — | 8 | 2 | — | 33 | — | — | — | — | — | — | 20 | 4 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 18 | W 18 | — | SW 16 | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | 6 | 6 | — | 10 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 7 | WSW 9 | — | WSW 9 | WSW 8 | W 9 | W 9 | — | — | — | W 8 | — | WSW 5 | WSW 7 | W 8 | W 8 | W 8 | W 8 | — | WSW 6 | W 9 |
260 | 1122 | — | 427 | 574 | 1528 | 1263 | — | — | — | 204 | — | 72 | 512 | 572 | 454 | 408 | 383 | — | 188 | 856 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 534 | 534 | 126 | 44 | 30 | 44 | 131 | 37 | 126 | 7 | 7 | 207 | 7 | 486 | 768 | 258 | 769 | 237 | 221 | 221 | 221 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










