Surf Forecasts:
Mawgan Porth surf forecast from 25 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 10PM (local time) - 2ft (0.6m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 1PM (local time) - 10ft (3.0m), 10s period, W swell with 1,655 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 10PM (local time) - 2ft (0.6m), 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 10PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.4m and 8s. 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 3.0m 10s and forecast to arrive on Tuesday (Sep 01) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Thursday (Aug 27) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 25th Aug) | 2ft (0.6m) 10s |
| Best Surf | 10PM (Tue 25th Aug) | 2ft (0.6m) 10s |
| Most Powerful | 1PM (Tue 1st Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Right, let’s have a look at what’s on offer for Mawgan Porth over the next couple of weeks.
Honestly, it’s a bit of a rough stretch for us. The water is sitting at 65° – a touch warmer than usual for this time of year, about 3° above the norm, so enough to notice but not weird. That’s the only real high point.
We kick off with a small window on Tuesday the 25th morning. It’s tiny – 2ft of WNW swell with a 10-second period, and the wind is light easterly, making it glassy. The combined energy is weak at 71. It’s rideable for a beginner on a longboard, but "ordinary" is the word. That’s the only time we get clean, small surf.
After that, the wind turns on us. Tuesday afternoon gets messy, and Wednesday the 26th is all cross-off breezes with tiny swell (2-2ft) and short periods (8 seconds). Not worth paddling out.
Thursday the 27th sees the wind get ugly – fresh cross-onshore from the SW with 2ft to 4ft, short-period junk – just a choppy, lumpy mess.
Friday the 28th is cleaner in the morning but still weak – 3ft, 8 seconds, and only 139 energy. Even the afternoon goes onshore again.
Then from Saturday the 29th through the 31st, the swell jumps. We’re looking at 6ft to 7ft, but it’s all onshore or cross-onshore with fresh to strong wind. Saturday has 19 mph westerlies, Sunday sees 22 mph WSW. Monday the 31st is even worse – onshore all day. The energy climbs into the moderate range (387-648), but with that wind, it’s a messy, blown-out situation.
Entering September, Tuesday the 1st is a real beast – 8ft to 10ft of windswell from the W, but it’s accompanied by a strong breeze (25 mph) and a cross-onshore mess. The energy hits 1010 and 1814, but this is not for paddling. This is kite-surfing territory if anything. That goes for Thursday the 5th as well, when we get another 8ft to 10ft pulse with onshore winds.
There is a short glimmer on Monday the 7th of September. The morning looks clean with a stiff NE breeze (25 mph) blowing cross-offshore, and we have 8ft of W swell at 9 seconds (energy 848). That’s a decent-sized, clean wave. But it’s strong wind, so keep your rail game tight. The afternoon turns cross-shore and lumpier.
Tuesday the 8th offers a slight, marginal option – 5ft to 6ft, light winds, cleanish in the afternoon, but the energy is low (267-326) and the period is short (7 seconds). It’s borderline.
The real standout, and the one to keep an eye on if you’re an expert, is Wednesday the 9th of September. We get a 8ft to 8ft West swell with a solid 11-second period (moderate energy at 1388-1466). The wind is onshore though – 16 mph W in the morning, 12 mph W in the afternoon. It’s a powerful, clean-looking groundswell setup, but that onshore breeze will chop it up. For the experienced crew only, and expect a battle with the wind.
Overall, there’s very little to get excited about in the first week. The best chance for a surf that isn’t a complete battle is probably that clean morning on the 7th, but even then, it’s strong wind. The long-range call for the 9th has potential if the wind swings, but don’t hold your breath. It’s one of those stretches where the swell comes in but the wind blows it out.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Wed night. Warm (max 21°C on Tue morning, min 16°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Fri night. Warm (max 20°C on Sun morning, min 15°C on Sun night). Winds increasing (calm on Fri morning, strong winds from the WNW by Sun night). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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 10 | W 10 | W 9 | W 8 | W 8 | W 8 | SW 6 | SW 7 | SW 7 | SW 8 | SW 7 | W 6 | W 7 | WSW 8 | W 9 | W 9 | WSW 8 | W 8 | W 8 | W 8 | WSW 8 |
Wave Graph | |||||||||||||||||||||
52 | 70 | 59 | 50 | 31 | 28 | 33 | 112 | 104 | 113 | 57 | 122 | 387 | 469 | 916 | 459 | 450 | 1279 | 597 | 464 | 483 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross-on | cross-off | cross-off | cross-on | cross-on | on | on | cross-on | cross | cross-on | on | on | on | on |
High Tide | 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 | 7:50AM6.54m | 8:07PM6.69m | ||||||||
Low Tide | 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 | 2:03PM0.29m | 2:23AM0.32m | |||||||
6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | |
— | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | |
mm | — | 2 | — | — | — | 8 | — | — | — | — | 1 | 5 | — | — | — | — | 2 | 2 | — | 1 | — |
Temp °C | 21 | 20 | 17 | 21 | 21 | 18 | 19 | 20 | 17 | 19 | 18 | 18 | 19 | 18 | 17 | 20 | 18 | 17 | 17 | 17 | 17 |
Feels °C | 19 | 17 | 17 | 19 | 19 | 17 | 15 | 16 | 16 | 20 | 15 | 15 | 14 | 13 | 13 | 14 | 13 | 12 | 11 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | W 8 | WNW 9 | SW 7 | SW 8 | SW 7 | — | — | — | — | W 9 | — | — | W 8 | W 8 | N 5 |
52 | 70 | 59 | 50 | 31 | 28 | 18 | 29 | 104 | 113 | 57 | — | — | — | — | 459 | — | — | 597 | 464 | 2 | |
Swell 2 Height (m) Direction Period (s) | NNE 5 | NNE 5 | SW 8 | NNW 5 | N 4 | SSW 7 | WNW 10 | W 12 | WNW 9 | WNW 9 | WNW 8 | — | — | — | — | — | — | — | NNW 6 | N 6 | W 18 |
8 | 4 | 17 | 4 | 1 | 4 | 11 | 3 | 26 | 26 | 22 | — | — | — | — | — | — | — | 51 | 9 | 6 | |
Swell 3 Height (m) Direction Period (s) | SW 8 | SW 8 | N 4 | SSW 8 | SSW 7 | SW 12 | SW 12 | — | SW 12 | — | SW 11 | — | — | — | — | — | — | — | — | — | — |
11 | 18 | 2 | 6 | 5 | 6 | 6 | — | 5 | — | 5 | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SW 6 | SW 7 | — | — | — | W 6 | W 7 | WSW 8 | W 9 | — | WSW 8 | W 8 | — | — | WSW 8 |
— | — | — | — | — | — | 33 | 112 | — | — | — | 122 | 387 | 469 | 916 | — | 450 | 1279 | — | — | 483 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 1 | 0 | 16 | 56 | 387 | 267 | 7 | 0 | 4 | 44 | 221 | 267 | 246 | 7 | 42 | 239 | 762 | 486 | 516 | 135 |
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.










