Surf Forecasts:
Mawgan Porth surf forecast from 21 Aug 2026:
- Best quality surf: Saturday 22 Aug, 1AM (local time) - 1.5ft (0.5m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 4PM (local time) - 6ft (1.9m), 8s period, WNW swell with 449 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 1AM (local time) - 1.5ft (0.5m), 8s period with W 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 Saturday (Aug 22) at 1AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.5m and 5s. Another secondary swell of 0.6m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mawgan Porth in the next 16 days are 1.9m 8s and forecast to arrive on Thursday (Aug 27) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Tuesday (Aug 25) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 22nd Aug) | 1.5ft (0.5m) 8s |
| Best Surf | 1AM (Sat 22nd Aug) | 1.5ft (0.5m) 8s |
| Most Powerful | 4PM (Thu 27th Aug) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a 16-day window for Mawgan Porth, and I’ll be straight with you – it’s a tough stretch. The first few days are a write-off, and the pattern doesn’t offer much to get excited about. The water is sitting at 66°F, which is a touch warmer than usual for this time of year, so at least you won’t be freezing your toes off.
The first real surf recommendation doesn’t show up until Saturday morning, the 22nd of August. We’ve got a tiny 2ft swell rolling in from the west, with a period of 10 seconds. The wind is light easterly and offshore, so the surface will be clean, but it’s small. The combined energy is weak (105), so you’re looking at longboard or foamie territory. Saturday afternoon the wind shifts to a cross-off, but the swell stays the same and the energy drops even more (86). Not a standout.
Sunday the 23rd is a flat day with weak, long-period leftovers. The combined energy is only 40-50. Not worth the paddle.
From Monday the 24th through to Tuesday the 2nd of September, it’s a long, grim run. The wind is nearly always onshore, cross-shore, or too strong, and the swell is either tiny or messy. The combined energy climbs a bit mid-week, like on Thursday the 27th (470) and Friday the 28th (340), but the wind is howling from the west and southwest, ramping up to 25 mph, making it a complete mess. Those bigger swells (6ft to 7ft) are blown out and not clean. This setup is honestly more interesting for kite surfers than paddle surfers.
The only glimmer of hope comes late in the window. On Thursday the 3rd of September, the morning is glassy with a calm wind and a tiny 2ft swell from the west. The combined energy is weak (53), but it’s clean. Not a standout, just a moment of peace. Then, on Friday the 4th of September, we get a morning session that’s the best on offer. The swell is 5ft from the west with an 8-second period, and the wind is a gentle southerly cross-shore, keeping the surface clean with just a slight chop. The combined energy is moderate (296). It’s not a world-class day, but compared to the rest of this forecast, it’s the one to aim for. The break is a river mouth, so it’s fairly consistent, but it’s a beginner spot, so it’s best for the learners and longboarders. Crowds are possible, so don’t expect solitude.
The rest of the window after that fades back into small, onshore conditions. No major standouts to speak of. A tough outlook overall.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri morning. Very mild (max 19°C on Sun afternoon, min 14°C on Fri night). Winds increasing (light winds from the ENE on Sun morning, fresh winds from the E by Sun night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed night. Warm (max 22°C on Wed afternoon, min 17°C on Mon night). Winds increasing (light winds from the S on Tue night, strong winds from the SSE by Wed night). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 9 | WNW 8 | W 8 | W 10 | W 9 | WSW 15 | WSW 14 | SW 12 | WSW 10 | WSW 9 | WSW 13 | W 9 | NNE 5 | W 10 | W 9 | W 9 | SSW 7 | SW 7 | W 8 | WNW 8 | WNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 119 | 90 | 32 | 44 | 40 | 21 | 20 | 39 | 38 | 8 | 17 | 7 | 20 | 49 | 42 | 39 | 99 | 62 | 142 | 449 | 239 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-on | cross-on | on |
High Tide | 11:55AM4.57m | 00:36AM4.36m | 1:20PM4.36m | 2:10AM4.29m | 2:52PM4.47m | 3:30AM4.52m | 3:57PM4.83m | 4:24AM4.90m | 4:44PM5.27m | 5:04AM5.32m | 5:21PM5.72m | 5:40AM5.72m | 5:55PM6.12m | ||||||||
Low Tide | 6:19PM2.31m | 6:58AM2.45m | 7:54PM2.45m | 8:37AM2.43m | 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 | ||||||||
 |  |  | | | |  | |  | |  |  | | |  | | |  | |  | | |
 | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 2 | — | — | 2 | — | 2 | 1 |
Temp °C | 15 | 15 | 16 | 17 | 17 | 17 | 18 | 19 | 18 | 20 | 21 | 19 | 19 | 20 | 18 | 21 | 22 | 18 | 18 | 18 | 17 |
Feels °C | 10 | 10 | 14 | 13 | 13 | 15 | 16 | 17 | 16 | 12 | 14 | 14 | 14 | 16 | 16 | 17 | 18 | 10 | 13 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | W 9 | WNW 8 | W 5 | N 6 | W 9 | W 9 | NNW 4 | SW 12 | WSW 10 | WSW 9 | NE 4 | W 9 | NNE 5 | W 10 | W 9 | W 9 | W 8 | SW 7 | W 8 | SSW 7 | SSW 7 |
| kJ | 119 | 90 | 15 | 39 | 40 | 14 | 6 | 39 | 38 | 8 | 4 | 6 | 18 | 49 | 42 | 39 | 32 | 62 | 142 | 21 | 5 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | W 8 | W 10 | WSW 15 | WSW 15 | W 9 | NNW 4 | WSW 14 | N 4 | W 9 | SW 9 | WNW 10 | SW 9 | SW 8 | SW 8 | SW 12 | W 8 | SSW 7 | — | SW 12 |
| kJ | 7 | 7 | 32 | 44 | 21 | 21 | 14 | 6 | 19 | 1 | 6 | 3 | 20 | 20 | 18 | 16 | 6 | 29 | 21 | — | 5 |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | WSW 15 | SW 12 | — | WSW 14 | W 8 | — | W 9 | WSW 13 | SW 13 | SW 8 | NNE 5 | SW 13 | SW 12 | — | SW 12 | WNW 10 | — | — |
| kJ | 10 | 10 | 10 | 22 | 6 | — | 20 | 5 | — | 7 | 17 | 7 | 11 | 2 | 7 | 6 | — | 6 | 20 | — | — |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 5 | — | N 5 | N 5 | — | — | N 4 | E 3 | ESE 3 | NE 3 | E 4 | SSE 3 | SSW 3 | SSW 5 | SSW 7 | — | — | WNW 8 | WNW 7 |
| kJ | 55 | 33 | 19 | — | 19 | 15 | — | — | 3 | 8 | 3 | 2 | 9 | 1 | 1 | 20 | 99 | — | — | 449 | 239 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 69 | 245 | 0 | 0 | 61 | 49 | 7 | 14 | 0 | 393 | 221 | 207 | 207 | 23 | 2 | 249 | 131 | 87 | 235 | 307 | 246 |
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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