Surf Forecasts:
Mawgan Porth surf forecast from 12 Sep 2026:
- Most powerful swell: Sunday 13 Sep, 4AM (local time) - 6ft (1.8m), 10s period, W swell with 635 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 1.8m 10s and forecast to arrive on Sunday (Sep 13) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Sun 13th Sep) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright folks, let’s talk about what’s happening at Mawgan Porth over the next 16 days. I’ll be honest, it’s a bleak picture for the most part. The water is sitting at 64°, which is a touch warmer than normal for this time of year.
We’ve got a massive gap with nothing worth recommending. From now right through to Thursday the 24th of September, every session is marked as “poor surf conditions”. The wind is nearly always cross-on or onshore, often fresh to strong. There’s some size, hitting up to 8ft on the 20th, but it’s a lumpy, messy disaster, with combined energy maxing out at 834. With that wind and those conditions, this stretch is honestly more suited to a kite surfer than someone on a paddle board.
The only real chance of anything decent lands on Friday the 25th of September. It’s not a classic, but it’s the best we’ve got. The morning and afternoon are both described as “surfable waves but very ordinary conditions”, scoring a 1 – the only non-zero score in the whole run. The swell is tiny, about 3ft from the W, with a 10-second period. The combined energy is a weak 162. But the key here is the wind: it goes light and cross-off from the SE. That means clean, glassy conditions. For a beginner break like Mawgan Porth, with small, clean waves, it’ll be perfect for the longboard or a soft-top.
The next day, Saturday the 26th, it gets messy again, and we finish with onshore winds and a bit more size on Sunday the 27th.
So, a long two-week wait for one clean day of tiny waves. If that SE wind shows up on the 25th, it’ll be worth a paddle. Otherwise, it’s a tough outlook.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sat night. Warm (max 20°C on Mon morning, min 17°C on Sat morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Very mild (max 16°C on Tue morning, min 13°C on Wed afternoon). Mainly fresh winds. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 | W 10 | W 10 | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | WNW 8 | W 8 | W 10 | W 10 | W 10 | WNW 7 | WNW 7 | W 10 | WNW 12 | W 12 | WNW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 235 | 396 | 612 | 504 | 377 | 262 | 189 | 173 | 130 | 286 | 414 | 341 | 422 | 487 | 459 | 277 | 284 | 432 | 519 | 425 | 186 |
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 | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | cross-on |
High Tide | 6:54PM6.99m | 7:12AM6.75m | 7:29PM6.87m | 7:47AM6.62m | 8:04PM6.58m | 8:20AM6.34m | 8:38PM6.17m | 8:54AM5.95m | 9:13PM5.69m | 9:30AM5.49m | 9:51PM5.16m | 10:10AM5.00m | 10:36PM4.66m | ||||||||
Low Tide | 12:54PM0.03m | 1:15AM-0.02m | 1:28PM0.07m | 1:48AM0.15m | 2:02PM0.27m | 2:19AM0.45m | 2:34PM0.59m | 2:50AM0.85m | 3:07PM1.01m | 3:22AM1.30m | 3:42PM1.48m | 3:59AM1.78m | 4:26PM1.95m | ||||||||
 | |  |  |  |  | |  | | | | | | | |  | | | | | | |
 | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — |
 | — | 7:42 | — | — | 7:38 | — | — | 7:37 | — | — | 7:35 | — | — | 7:32 | — | — | 7:30 | — | — | 7:28 | — |
mm | — | — | 1 | 1 | — | — | — | — | 1 | — | — | — | — | — | 1 | 1 | — | — | — | — | — |
Temp °C | 18 | 19 | 18 | 18 | 18 | 19 | 20 | 20 | 18 | 16 | 16 | 16 | 14 | 14 | 16 | 16 | 15 | 16 | 16 | 16 | 16 |
Feels °C | 13 | 15 | 16 | 17 | 18 | 19 | 18 | 18 | 17 | 12 | 10 | 12 | 9 | 9 | 11 | 9 | 9 | 11 | 12 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | NW 15 | W 15 | W 10 | W 10 | W 10 | W 10 | W 9 | W 8 | W 8 | WNW 10 | — | W 8 | W 10 | W 10 | N 5 | W 10 | WNW 9 | W 13 | WNW 12 | W 12 | WNW 12 |
| kJ | 9 | 4 | 612 | 504 | 377 | 262 | 189 | 173 | 130 | 85 | — | 341 | 422 | 487 | 13 | 70 | 141 | 3 | 519 | 425 | 186 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 13 | SW 13 | — | SW 12 | SW 12 | WNW 12 | — | — | — | — | — | — | — | — | — | N 4 | — | W 16 |
| kJ | — | — | — | 7 | 7 | — | 6 | 6 | 14 | — | — | — | — | — | — | — | — | — | 2 | — | 5 |
Swell 3 Height (m) Direction Period (s) | W 15 | — | — | — | — | — | — | — | SW 12 | — | — | — | — | — | — | — | — | — | W 12 | — | — |
| kJ | 4 | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | 3 | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | — | — | — | — | — | — | — | W 8 | WNW 8 | N 5 | NNW 6 | N 6 | W 10 | WNW 7 | WNW 7 | W 10 | — | — | W 6 |
| kJ | 235 | 396 | — | — | — | — | — | — | — | 286 | 414 | 21 | 97 | 52 | 459 | 277 | 284 | 432 | — | — | 64 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 210 | 221 | 7 | 75 | 30 | 6 | 7 | 7 | 2 | 135 | 132 | 93 | 132 | 93 | 221 | 221 | 237 | 237 | 7 | 246 | 7 |
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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