Surf Forecasts:
Mawgan Porth surf forecast from 23 Aug 2026:
- Best quality surf: Thursday 27 Aug, 7PM (local time) - 4.5ft (1.3m), 9s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 4AM (local time) - 8ft (2.4m), 8s period, W swell with 724 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 1AM (local time) - 1.5ft (0.4m), 10s period with WSW 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 Monday (Aug 24) at 1AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.2m and 14s. Another secondary swell of 0.4m and 4s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Mawgan Porth in the next 16 days are 2.4m 8s and forecast to arrive on Saturday (Aug 29) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Aug 24) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 24th Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 7PM (Thu 27th Aug) | 4.5ft (1.3m) 9s |
| Most Powerful | 4AM (Sat 29th Aug) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, let’s have a look at what’s coming our way. I’ll be straight with you – the next stretch is a bit of a dud. We’ve got a long, dry spell before we finally see a day that’s worth the wait.
The forecast from Sunday the 23rd all the way through to the morning of Saturday the 6th of September is pretty grim. There’s a little bit of energy here and there, like on the 27th with a 4ft swell from the SW, but the wind is side-shore and the quality is poor. It’s just not surfable. The swell direction is never in our favor, and the wind won’t let up. It’s a solid week-plus with nothing to recommend.
Now, for the one that matters. The afternoon of Sunday the 6th of September is the real deal. Mawgan Porth is a river break, and it’s fairly consistent. This is the one. We’re looking at a solid 10ft swell from the WNW, with a period of 9 seconds. That’s a ton of power, with a combined energy of 1346. The wind is glassy, dead calm, so the waves will be clean and lined up. This is big, expert-only stuff, so if you don’t have the experience, stay on the beach. The water is about 65°F, which is a touch warmer than usual for this time of year, so you’ll be comfortable.
The morning of the 6th also has a 10ft WNW swell, but the wind is side-shore, so it won’t be as clean. The afternoon is the clear winner.
Come Monday the 7th of September, the swell drops off a bit to 6ft to 8ft, but the wind is a fresh cross-offshore, keeping it clean. The energy is still high, but it won’t hold a candle to that glassy Sunday.
So, here’s the plan: the next week is a bust. The only true standout is the afternoon of the 6th of September at Mawgan Porth. Get it in the diary.
- Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 22°C on Mon afternoon, min 16°C on Sun night). Winds increasing (light winds from the NE on Sun night, fresh winds from the E by Mon morning). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Warm (max 22°C on Wed afternoon, min 16°C on Thu night). Winds decreasing (fresh winds from the ESE on Wed night, calm by Thu night). | |||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 13 | WSW 10 | WSW 9 | WSW 13 | WNW 11 | WNW 10 | W 10 | W 9 | W 8 | W 8 | W 8 | SW 8 | SW 8 | WSW 8 | SW 7 | WSW 7 | W 8 | W 8 | W 7 | W 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 43 | 38 | 8 | 17 | 12 | 34 | 70 | 59 | 50 | 31 | 18 | 196 | 165 | 126 | 65 | 337 | 649 | 545 | 310 | 128 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | on | on | on | on | on | cross |
High Tide | 3:30AM4.52m | 3:57PM4.83m | 4:24AM4.90m | 4:44PM5.27m | 5:04AM5.32m | 5:21PM5.72m | 5:40AM5.72m | 5:55PM6.12m | 6:12AM6.07m | 6:27PM6.44m | 6:44AM6.33m | 7:00PM6.66m | ||||||||
Low Tide | 9:24PM2.25m | 9:51AM2.12m | 10:24PM1.87m | 10:41AM1.71m | 11:07PM1.44m | 11:20AM1.28m | 11:43PM1.03m | 11:54AM0.90m | 00:16AM0.67m | 12:27PM0.58m | 00:48AM0.40m | 12:59PM0.37m | 1:19AM0.25m | |||||||
 |  | | | | |  |  | |  |  |  | |  | | | | | |  | |
 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — |
 | 8:24 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — |
mm | — | — | — | — | — | — | 2 | — | — | — | 3 | — | — | — | — | — | — | — | — | 3 |
Temp °C | 19 | 18 | 21 | 22 | 19 | 22 | 20 | 17 | 21 | 22 | 17 | 20 | 20 | 16 | 18 | 18 | 17 | 17 | 18 | 17 |
Feels °C | 16 | 16 | 14 | 15 | 13 | 17 | 15 | 16 | 18 | 20 | 12 | 17 | 18 | 15 | 17 | 14 | 16 | 13 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | NNW 4 | WSW 10 | N 4 | NE 5 | WNW 11 | WNW 10 | W 10 | W 9 | W 8 | W 8 | W 8 | W 7 | SW 8 | WSW 8 | W 6 | — | — | — | NNW 5 | W 7 |
| kJ | 6 | 38 | 1 | 5 | 12 | 34 | 70 | 59 | 50 | 31 | 18 | 17 | 165 | 126 | 21 | — | — | — | 9 | 128 |
Swell 2 Height (m) Direction Period (s) | SW 13 | WSW 14 | WSW 9 | W 9 | W 9 | SW 8 | NE 5 | SW 8 | SSW 8 | SSW 7 | SW 12 | WNW 10 | WSW 10 | WNW 10 | WNW 9 | — | — | — | — | NNW 5 |
| kJ | 43 | 19 | 8 | 6 | 6 | 11 | 6 | 17 | 6 | 5 | 6 | 10 | 65 | 31 | 26 | — | — | — | — | 4 |
Swell 3 Height (m) Direction Period (s) | W 10 | — | W 9 | WSW 13 | SW 13 | W 8 | SW 8 | NNE 5 | SW 12 | — | — | — | WNW 9 | — | SW 11 | — | — | — | — | — |
| kJ | 8 | — | 6 | 17 | 7 | 1 | 11 | 2 | 6 | — | — | — | 26 | — | 5 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | N 4 | E 3 | ESE 3 | NE 3 | NE 5 | — | SSE 2 | SW 4 | SSW 4 | S 4 | SW 8 | — | — | SW 7 | WSW 7 | W 8 | W 8 | W 7 | — |
| kJ | — | 5 | 8 | 2 | 4 | 16 | — | 1 | 6 | 7 | 12 | 196 | — | — | 65 | 337 | 649 | 545 | 310 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 387 | 221 | 210 | 7 | 207 | 0 | 0 | 56 | 213 | 16 | 2 | 0 | 30 | 44 | 30 | 246 | 210 | 1 |
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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