Surf Forecasts:
Mawgan Porth surf forecast from 24 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 10AM (local time) - 1.5ft (0.5m), 10s period, W swell with offshore winds.
- Most powerful swell: Friday 28 Aug, 7PM (local time) - 8ft (2.5m), 8s period, W swell with 966 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 10AM (local time) - 1.5ft (0.5m), 10s 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 Tuesday (Aug 25) at 10AM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.3m and 8s. 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 2.5m 8s and forecast to arrive on Friday (Aug 28) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Tue 25th Aug) | 1.5ft (0.5m) 10s |
| Best Surf | 10AM (Tue 25th Aug) | 1.5ft (0.5m) 10s |
| Most Powerful | 7PM (Fri 28th Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, let’s break down what’s in store for Mawgan Porth.
Honestly, it’s a tough outlook for the next couple of weeks. The first real chance of any waves doesn’t pop up until Monday the 24th of August, but even then it’s barely a ripple – 0.2m (0.7ft) of swell from the WSW with a decent 13-second period behind it. The wind is offshore from the ESE at 30 km/h, so the surface will be clean, but with combined wave energy sitting at just 23 (that’s weak), you’d be scratching for anything worth paddling out for.
Tuesday the 25th is much the same story – small 0.5m (2ft) to 0.6m (2ft) swell from the west, gentle offshore in the morning, then cleaner in the afternoon as the wind drops to next to nothing. It’s surfable but very ordinary. Water temp is sitting at 18°C (65°F), which is a touch warmer than normal for this time of year, so at least you won’t be freezing while you’re barely moving.
The rest of that first week is pretty uninspiring. Wednesday the 26th sees cross-offshore winds with tiny 0.5m (2ft) to 0.6m (2ft) swell but the period drops to 8 seconds, so it loses a lot of shape. The energy is weak (45 to 71). Thursday and Friday get a bit more size – up to 1.5m (5ft) by Friday morning and 2.4m (8ft) by the afternoon – but the wind swings onshore and it turns into a messy, blown-out mess. The energy picks up to 692 (moderate) but with poor conditions, it’s a total write-off for surfing.
The weekend of the 29th and 30th is more of the same: onshore winds, lumpy, choppy, and the swell direction is all over the shop. Nothing worth getting excited about.
We then hit a real dry spell through the beginning of September. From the 31st of August right through to the 3rd, it’s all strong or near-gale onshore winds with building but messy swell. The energy gets into the hundreds and even reaches 870 (moderate to strong) on the 2nd, but with wind like that, even the bigger 2.3m (8ft) to 2.4m (8ft) waves will be a complete washout.
The first faint glimmer of something better comes on Friday the 4th of September. We see a 1.7m (6ft) swell from the WSW with a light cross-shore wind from the north at 10 km/h. The wave energy is 424 (moderate). The conditions are marginal but it’s the best we’ve had in a while. Still, it’s not a standout.
Saturday the 5th of September brings a bigger 2.5m (8ft) to 3.0m (10ft) west swell with period up to 11 seconds. The wind is cross-onshore from the northwest, and the combined energy jumps to 1513 (strong). But the commentary suggests marginal at best, and the afternoon turns to poor with light rain and building wind. The morning could offer some bigger, lumpy waves for experienced surfers, but it’s far from clean.
Now, the one standout in this whole 16-day window hits on Monday the 7th of September. There’s a huge 7.0m (23ft) swell predicted from the west with a very long 17-second period. The combined wave energy is a massive 29596 (extremely strong). This is big, powerful groundswell. The wind is strong cross-onshore from the NW at 40 km/h, so it will look wild and messy. The forecast itself notes the swell is predicted to be too big for this break. This is only for experts, and even then, the conditions will be extremely challenging. A point break or reef would handle this energy better, but here at Mawgan Porth, a river-mouth setup, it’s going to be a giant, churning, blown-out beast. Honestly, with that wind and size, it looks more interesting for kite surfing than paddle surfing.
The final days on the 8th of September drop back to 2.4m (8ft) to 3.0m (10ft) with a long 12-13 second period, but the wind is cross-onshore or onshore, keeping things average at best.
So to sum it up: this is a long, cruel run of poor surf. There’s almost nothing on offer until well into the second week, and even then, the only real swell of note is too big and too windy for most. The consistent takeaway here is that the wind just won’t cooperate. It’s rare to see such a persistent spell of onshore wind. We’ll have to keep an eye on the long-range – forecasts can change, but right now, Mawgan Porth is a no-go for quality waves.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Wed night. Warm (max 22°C on Mon afternoon, min 16°C on Mon night). Winds increasing (light winds from the ESE on Tue afternoon, fresh winds from the SE by Wed night). | Days 5-7 Weather SummarySome drizzle, heaviest during Sat morning. Warm (max 20°C on Thu afternoon, min 15°C on Thu night). Winds increasing (calm on Thu night, strong winds from the SSW by Sun morning). | |||||||||||||||||||
Mon 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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 13 | WNW 11 | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | W 7 | SW 8 | WSW 7 | W 7 | W 8 | W 8 | WNW 6 | W 6 | SW 8 | WSW 8 | WSW 8 | WSW 8 |
Wave Graph | ||||||||||||||||||||
17 | 12 | 52 | 70 | 59 | 50 | 31 | 18 | 17 | 75 | 120 | 200 | 692 | 658 | 85 | 33 | 88 | 123 | 128 | 113 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross-off | cross-off | off | cross-on | cross | cross-off | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 7:17AM6.50m | 7:32PM6.75m | ||||||||
Low Tide | 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 | 1:30PM0.26m | 1:50AM0.22m | |||||||
— | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | |
8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — | |
mm | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | 1 | — | — | — | 1 | 2 |
Temp °C | 22 | 18 | 21 | 21 | 17 | 20 | 21 | 18 | 18 | 20 | 17 | 18 | 18 | 17 | 19 | 19 | 18 | 19 | 18 | 17 |
Feels °C | 16 | 14 | 19 | 21 | 17 | 20 | 20 | 14 | 16 | 20 | 17 | 16 | 15 | 14 | 17 | 16 | 14 | 12 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | NE 4 | WNW 11 | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | W 7 | WNW 9 | WNW 8 | SW 11 | — | — | WNW 6 | W 6 | SW 8 | WSW 8 | WSW 8 | WSW 8 |
5 | 12 | 52 | 70 | 59 | 50 | 31 | 18 | 17 | 28 | 24 | 5 | — | — | 85 | 33 | 88 | 123 | 128 | 113 | |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | SW 8 | NNE 5 | NNW 5 | NNW 5 | NNW 5 | SSW 7 | SSW 6 | — | SW 12 | — | — | — | SW 6 | SSW 8 | WNW 5 | NNW 4 | W 12 | WNW 11 |
6 | 6 | 11 | 8 | 14 | 15 | 9 | 4 | 4 | — | 5 | — | — | — | 17 | 6 | 6 | 1 | 3 | 37 | |
Swell 3 Height (m) Direction Period (s) | WSW 13 | SW 13 | W 8 | SW 8 | SW 8 | SSW 8 | SSW 7 | — | WNW 10 | — | — | — | — | — | — | — | W 7 | — | — | — |
17 | 7 | 5 | 18 | 17 | 6 | 5 | — | 11 | — | — | — | — | — | — | — | 1 | — | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 3 | NE 3 | NNE 5 | — | — | — | — | — | SSW 3 | SW 8 | WSW 7 | W 7 | W 8 | W 8 | — | N 4 | N 4 | — | — | — |
2 | 4 | 9 | — | — | — | — | — | 1 | 75 | 120 | 200 | 692 | 658 | — | 3 | 2 | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 239 | 210 | 0 | 0 | 0 | 0 | 7 | 213 | 213 | 1 | 0 | 7 | 221 | 393 | 43 | 221 | 27 | 486 | 486 | 491 |
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.










