Surf Forecasts:
Mawgan Porth surf forecast from 27 Aug 2026:
- Most powerful swell: Monday 31 Aug, 4AM (local time) - 10ft (3.0m), 10s period, W swell with 1,849 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 10s and forecast to arrive on Monday (Aug 31) at 4AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 11s period and expected on Saturday (Aug 29) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Mon 31st Aug) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, let me break down the next couple of weeks at Mawgan Porth for ya. I’ll be straight – it’s a grim stretch for a surf.
We’ve got a big empty run right off the bat. From Thursday the 27th of August right through to the 4th of September, there’s nothing worth paddling out for. Most days are cross-onshore winds, lumpy, blown-out conditions. Saturday the 29th afternoon has some size – about 8ft (2.4m) – but it’s onshore with a strong breeze, just a messy, white-capped nightmare. The wave energy is up there at 939, but the wind ruins it.
The only real window pops up on Tuesday the 8th of September in the afternoon. The wind swings light and offshore from the NNE at just 6 mph. You’ll get a 5ft (1.4m) west swell with a 10-second period – clean groundswell. Water temp is about 65°, which is a touch warmer than usual for this time of year. For a river break that’s fairly consistent, this is your moment. Crowds can be around sometimes, so you might have a few others out, but with that light offshore breeze, it’ll be worth the company. Wave energy is moderate at 397.
Wednesday the 9th of September morning is clean but the wind is a bit stronger at 16 mph, making it harder to get the right line. After that, it’s back to choppy junk.
So here’s the takeaway: your only real standout is Tuesday the 8th of September afternoon. Circle it. Everything else is a wait-and-see or a skip. It’s been a quiet spell for Mawgan Porth, but that one clean session could be the one that keeps you going.
– Rusty
Short Range ForecastHeavy rain (total 25mm), heaviest during Fri morning. Warm (max 20°C on Thu morning, min 15°C on Fri night). Winds increasing (light winds from the SW on Thu morning, strong winds from the SW by Sat morning). | Days 4-6 Weather SummaryModerate rain (total 11mm), heaviest on Sun afternoon. Very mild (max 18°C on Sun morning, min 16°C on Sun afternoon). Winds decreasing (strong winds from the SW on Sun afternoon, light winds from the NW by Tue night). | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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 | WNW 9 | WSW 6 | WSW 7 | SW 6 | SW 7 | WSW 9 | W 9 | W 9 | WSW 8 | W 9 | W 10 | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | W 8 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 18 | 35 | 34 | 176 | 261 | 62 | 189 | 939 | 724 | 413 | 498 | 1790 | 1328 | 849 | 524 | 311 | 210 | 131 | 44 | 28 | 82 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross | cross-on | on | on | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | on | cross-on |
High Tide | 5:55PM6.12m | 6:12AM6.07m | 6:27PM6.44m | 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 | ||||||||
Low Tide | 11:54AM0.90m | 00:16AM0.67m | 12:27PM0.58m | 00:48AM0.40m | 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 | |||||||
 |  |  |  |  |  | |  |  | | | |  | | | | | | | | | |
 | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — |
 | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:02 | — |
mm | — | 2 | — | 10 | 3 | 8 | 2 | — | — | 1 | 4 | 3 | — | — | — | 1 | — | 2 | — | — | — |
Temp °C | 20 | 20 | 17 | 17 | 18 | 18 | 18 | 18 | 17 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 |
Feels °C | 19 | 18 | 15 | 12 | 13 | 14 | 11 | 11 | 12 | 14 | 12 | 11 | 13 | 13 | 14 | 14 | 13 | 14 | 16 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | WNW 9 | W 9 | SW 11 | WNW 6 | — | — | — | W 9 | N 5 | — | W 10 | W 10 | W 10 | W 9 | W 8 | SW 16 | WNW 5 | W 8 | SW 15 |
| kJ | 18 | 35 | 26 | 6 | 5 | 28 | — | — | — | 413 | 2 | — | 1328 | 849 | 524 | 311 | 210 | 10 | 28 | 28 | 8 |
Swell 2 Height (m) Direction Period (s) | SSW 6 | SSW 6 | SW 12 | — | — | WNW 8 | — | — | — | N 5 | — | — | — | — | — | W 18 | SW 17 | — | W 8 | WSW 16 | — |
| kJ | 4 | 16 | 5 | — | — | 11 | — | — | — | 4 | — | — | — | — | — | 6 | 12 | — | 44 | 24 | — |
Swell 3 Height (m) Direction Period (s) | WNW 10 | — | — | — | — | SW 11 | — | — | — | — | — | — | — | — | — | — | — | — | SW 16 | W 10 | — |
| kJ | 11 | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | 10 | 2 | — |
Wind waves Height (m) Direction Period (s) | — | SW 2 | SW 6 | WSW 6 | WSW 7 | SW 6 | SW 7 | WSW 9 | W 9 | — | WSW 8 | W 9 | — | — | — | — | — | W 8 | — | W 5 | W 6 |
| kJ | — | 1 | 34 | 176 | 261 | 62 | 189 | 939 | 724 | — | 498 | 1790 | — | — | — | — | — | 131 | — | 24 | 82 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 43 | 43 | 282 | 221 | 526 | 137 | 217 | 44 | 7 | 486 | 131 | 37 | 131 | 42 | 393 | 221 | 237 | 43 | 43 | 481 |
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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