Surf Forecasts:
Mawgan Porth surf forecast from 21 Aug 2026:
- Best quality surf: Saturday 22 Aug, 4AM (local time) - 1.5ft (0.5m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 1AM (local time) - 5.5ft (1.7m), 10s period, W swell with 557 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 4AM (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 4AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.6m and 5s. 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 1.7m 10s and forecast to arrive on Friday (Aug 28) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 22nd Aug) | 1.5ft (0.5m) 8s |
| Best Surf | 4AM (Sat 22nd Aug) | 1.5ft (0.5m) 8s |
| Most Powerful | 1AM (Fri 28th Aug) | 5.5ft (1.7m) 10s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, Rusty here again, same story, different numbers. Let's run through it for Mawgan Porth over the next couple of weeks.
Honestly, it's a rough outlook. There's no standout swell in the whole 16-day window, so I'm not gonna bullshit you and call something a winner when it's not. We're lookin' at a long stretch of flat, weak surf, especially from this Sunday the 23rd right through to the end. It's a quiet period, but that's just how it goes here sometimes; the ocean can always change its mind.
Startin' with today, Friday the 21st of August, we got a weak, messy W swell around 3ft, but it's gettin' hammered by a strong N wind at 15 mph. It's blown-out, cross-shore chop – total rubbish.
Tomorrow, Saturday the 22nd, is the only real chance. Early morning, the wind goes light offshore from the E, and that 2ft W swell cleans right up. The period is short at 10 seconds, and the energy is low, so it's gutless, small stuff. It's rideable if you're on a log or a foamie and just need to get wet, but that's as good as it gets. The wind picks up later and the swell drops to 2ft – worse.
From Sunday the 23rd onward, it's a slow death. The swell drops to ankle-biters, sometimes with a long period (14 seconds) but no real push, and the energy readings are tiny. The wind does go offshore a few days, like Monday the 24th and 25th, but when the swell is only 0.5ft to 1ft, clean conditions don't help.
We see a bump in energy around Thursday the 28th of August, with swell jumpin' to 6ft to 7ft and energy readings climbin' way up. But that's all short-period windswell (6 to 8 seconds) with a howlin' W to WSW onshore wind. It's gonna be a lumpy, messy, stormy mess. For a spot like this, a beach-and-river setup under those winds? That's kite-surfing conditions, not surf conditions.
The last week into September is flat – tiny swell, weak energy, onshore winds. There's a tease of offshore wind and a 14-second groundswell on Friday the 4th of September, but it's only 0.5ft. Hopeless.
So, the truth is, there's nothin' to get excited about. The only window is early Saturday the 22nd for a tiny, clean wave.
Best option: Saturday morning, August 22nd at Mawgan Porth, for a tiny, clean 2ft W swell under a light offshore E breeze. It's not much, but it's the best we've got.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Very mild (max 18°C on Sun afternoon, min 14°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Tue night. Warm (max 22°C on Mon afternoon, min 16°C on Sun night). Winds increasing (light winds from the ENE on Sun night, strong winds from the ESE by Mon 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 | W 9 | WSW 14 | SW 13 | WSW 10 | WSW 9 | WSW 13 | WSW 13 | WNW 10 | WNW 10 | WNW 9 | SSW 8 | SW 7 | W 8 | W 8 | SW 8 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 119 | 90 | 32 | 65 | 39 | 24 | 19 | 45 | 38 | 16 | 17 | 17 | 20 | 31 | 27 | 75 | 105 | 132 | 104 | 67 | 557 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | off | cross-off | cross-off | cross-off | cross | off | off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-on | cross-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 | 5:40AM2.17m | 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 | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 5 | 3 | — | 3 | 1 | 1 | 9 |
Temp °C | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 21 | 22 | 20 | 21 | 19 | 18 | 20 | 19 | 16 | 19 | 19 | 17 |
Feels °C | 10 | 10 | 14 | 13 | 13 | 14 | 14 | 15 | 16 | 13 | 14 | 12 | 17 | 16 | 15 | 13 | 12 | 13 | 15 | 14 | 17 |
Swell 1 Height (m) Direction Period (s) | W 9 | WNW 8 | W 5 | N 5 | W 9 | W 9 | N 4 | SW 13 | WSW 10 | WSW 9 | W 9 | W 8 | NE 5 | WNW 10 | WNW 9 | W 9 | W 8 | W 8 | W 8 | SW 8 | SW 12 |
| kJ | 119 | 90 | 15 | 27 | 39 | 24 | 5 | 45 | 38 | 16 | 6 | 6 | 6 | 31 | 27 | 39 | 33 | 132 | 104 | 67 | 5 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | W 8 | W 10 | WSW 15 | WSW 15 | W 9 | W 9 | N 4 | SW 14 | WSW 13 | WSW 13 | WNW 10 | SW 8 | SW 8 | SW 12 | SW 12 | SSW 8 | SW 7 | W 8 | — |
| kJ | 7 | 7 | 32 | 65 | 21 | 21 | 14 | 6 | 3 | 7 | 17 | 17 | 20 | 11 | 10 | 6 | 6 | 88 | 79 | 57 | — |
Swell 3 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 13 | WSW 15 | SW 12 | — | WSW 14 | W 10 | WSW 14 | N 4 | SW 9 | NW 11 | SW 8 | NNE 5 | SW 4 | — | — | — | — | WNW 10 | — |
| kJ | 10 | 10 | 7 | 22 | 6 | — | 19 | 2 | 19 | 1 | 3 | 5 | 3 | 3 | 3 | — | — | — | — | 32 | — |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 5 | — | N 5 | N 4 | — | N 4 | — | ESE 3 | ESE 3 | E 3 | ESE 3 | S 4 | SSE 2 | SSW 8 | SW 7 | SSW 3 | S 3 | — | W 10 |
| kJ | 55 | 33 | 12 | — | 19 | 14 | — | 3 | — | 3 | 6 | 11 | 7 | 10 | 1 | 75 | 105 | 3 | 3 | — | 557 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 69 | 245 | 48 | 0 | 61 | 48 | 49 | 12 | 0 | 374 | 153 | 217 | 207 | 213 | 22 | 235 | 207 | 2 | 6 | 387 | 16 |
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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