Surf Forecasts:
Mawgan Porth surf forecast from 28 Aug 2026:
- Most powerful swell: Monday 31 Aug, 1AM (local time) - 11ft (3.5m), 10s period, W swell with 2,053 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 3.5m 10s 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) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright folks, Rusty here. I've had a good look at what's coming up for us, and I gotta be straight with you – it's a tough stretch. We've got a 16-day window ahead, and for the most part, it's a story of wind and messy conditions. The first real chance we get at something worthwhile isn't until we're well into the second week.
Looking at the whole picture, the first week to ten days are basically a write-off. From Friday, the 28th of August, right through to the 7th of September, it's a parade of strong onshore and cross-onshore winds and lumpy, blown-out surf. The swell energy does build, hitting a massive 1872 at one point, but it's accompanied by a strong breeze right on it. That's just a washing machine for a small river break like this. It's not worth paddling out for.
The one true standout, the only glimmer of hope in this whole outlook, is the morning of the 8th of September. Let's talk about that. It's not big, but it will be clean. We're looking at a tiny 2 ft swell from the west with a light north-easterly breeze. The wave energy is weak at 54, but the description is "clean." That's the buzzword. For a river break like Mawgan Porth, that cross-off wind is a gift. It'll be small, glassy and fun on a longboard. Honestly, given the stormy mess before and after it, if you get a window that morning, go. It's a rare moment of calm.
After that, the 9th and 10th of September look completely wild again. We've got a 10 ft groundswell predicted for the morning of the 10th, with a period of 9 seconds and a near gale on it. That's big and dangerous, not for a river mouth. Then the 11th and 12th fade out into nothing much at all with strong, messy winds. It's a tough outlook, but keep an eye on that 8th of September – that's your best bet.
Rusty.
Short Range ForecastHeavy rain (total 32mm), heaviest during Fri night. Very mild (max 19°C on Fri morning, min 17°C on Thu night). Winds increasing (light winds from the WSW on Thu night, near gales from the WSW by Sat morning). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sun night. Very mild (max 18°C on Tue afternoon, min 15°C on Tue night). Winds decreasing (strong winds from the WNW on Sun night, light winds from the WNW by Wed morning). | ||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | |||||||||||||||
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) | WSW 5 | WSW 6 | WSW 6 | SW 7 | WSW 9 | W 9 | W 9 | WSW 9 | W 10 | W 10 | W 9 | W 10 | W 9 | W 9 | W 8 | W 6 | W 8 | W 6 | W 8 | W 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 53 | 131 | 87 | 248 | 1872 | 921 | 473 | 631 | 2053 | 1476 | 854 | 356 | 194 | 146 | 157 | 78 | 90 | 62 | 421 | 422 | 507 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | on | on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 9:46AM5.87m | 10:12PM5.68m | |||||||
Low Tide | 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 | 4:00PM1.10m | ||||||||
 | |  |  |  |  | |  | |  | | | |  | | | |  | | | | |
 | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — |
 | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:02 | — | — | 8:00 | — |
mm | — | — | 13 | 8 | 1 | — | 1 | 7 | 3 | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 18 | 18 | 17 | 19 | 17 | 17 | 16 | 17 | 17 | 17 | 18 | 17 | 16 | 16 | 18 | 19 | 19 | 19 |
Feels °C | 14 | 13 | 15 | 9 | 12 | 12 | 15 | 13 | 11 | 10 | 14 | 15 | 14 | 15 | 14 | 14 | 14 | 15 | 17 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 8 | WNW 8 | — | — | W 9 | W 9 | N 5 | — | — | W 9 | W 10 | W 9 | SW 17 | SW 16 | W 6 | WSW 16 | WNW 8 | WSW 15 | WSW 15 | WNW 14 |
| kJ | 16 | 7 | 6 | — | — | 921 | 473 | 2 | — | — | 854 | 356 | 194 | 12 | 10 | 78 | 24 | 19 | 21 | 22 | 105 |
Swell 2 Height (m) Direction Period (s) | SW 11 | — | SW 11 | — | — | — | — | — | — | — | — | NNW 5 | N 5 | — | — | WNW 8 | — | SW 15 | — | — | WSW 15 |
| kJ | 5 | — | 5 | — | — | — | — | — | — | — | — | 8 | 2 | — | — | 22 | — | 8 | — | — | 23 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 18 | — | — | SW 16 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | 10 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 5 | WSW 6 | WSW 6 | SW 7 | WSW 9 | — | — | WSW 9 | W 10 | W 10 | — | — | — | W 9 | W 8 | — | W 8 | W 6 | W 8 | W 8 | W 8 |
| kJ | 53 | 131 | 87 | 248 | 1872 | — | — | 631 | 2053 | 1476 | — | — | — | 146 | 157 | — | 90 | 62 | 421 | 422 | 507 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 282 | 217 | 527 | 252 | 221 | 44 | 75 | 486 | 560 | 237 | 153 | 6 | 7 | 221 | 131 | 49 | 42 | 221 | 7 | 221 | 246 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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