Surf Forecasts:
Mawgan Porth surf forecast from 25 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 1PM (local time) - 1.5ft (0.5m), 10s period, W swell with offshore winds.
- Most powerful swell: Saturday 29 Aug, 1PM (local time) - 10ft (3.0m), 9s period, W swell with 1,561 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 1PM (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 1PM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.3m and 9s. 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 3.0m 9s and forecast to arrive on Saturday (Aug 29) at 1PM. 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 5s period and expected on Tuesday (Aug 25) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Tue 25th Aug) | 1.5ft (0.5m) 10s |
| Best Surf | 1PM (Tue 25th Aug) | 1.5ft (0.5m) 10s |
| Most Powerful | 1PM (Sat 29th Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright folks, Rusty here, looking at what we’ve got on the table for Mawgan Porth over the next couple of weeks. For those of you just tuning in, this is a river break, fairly exposed to a WNW swell, and it’s a beginner-friendly spot.
Right off the bat, I gotta be straight with you – we’ve got a long, dry spell ahead. For the first ten days or so, it’s looking pretty grim. We’re talking from Tuesday, 25th August, all the way through to Saturday the 5th of September where the surf quality is just not there. The swell is small and weak, bouncing between 1 ft and 4 ft with periods under 8 seconds for much of that time. It’s just not showing any love. We do get a pulse of bigger swell around the 29th, with the combined energy hitting 374 on Saturday morning, but the wind is a mess – cross-onshore and choppy with 18-25 mph winds. Even when the swell tops 8 ft on the 31st and 1st September, the wind is just howling onshore or cross-onshore, trashing any chance of a decent wave. It’s a write-off. Honestly, with these windy conditions and the beach-and-river setup, this stretch looks more interesting for kite surfing than paddle surfing.
But hang on, there’s a light at the end of the tunnel. The standout window – and I mean the *only* one worth getting excited about – lands on Saturday the 5th of September during the afternoon. Finally, things click. We’ve got a clean 6 ft swell rolling in from the WNW with a long, juicy 11-second period. The magic is the wind: a gentle 15 mph breeze straight out of the east, blowing offshore. That’s going to groom those waves beautifully. The combined energy is a solid 698, so there’s decent push behind it. This is a true standout, the best on offer in this whole 16-day run. Get on it while the getting’s good.
Following that, we get a bit more activity around the 8th of September, but it’s further out and less certain. Tuesday the 8th has a big 8 ft swell in the morning, but it’s from the west with a very long 15-second period – that’s a groundswell, which can be a bit too straight for this kind of break. The afternoon looks promising though, with a clean 6 ft swell and light, clean winds. The combined energy is massive at 1661, so the ocean will have plenty of energy. But being a week and a half out, we’ll call that promising but not a lock.
Water temps are sitting about average for the time of year, so no surprises there.
So, in short: the first week and a half is a total dog. But that Saturday afternoon session on the 5th September? That’s your window. Be ready.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Wed night. Warm (max 21°C on Tue morning, min 16°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Fri night. Very mild (max 18°C on Fri morning, min 16°C on Thu night). Winds increasing (light winds from the S on Thu night, strong winds from the WSW by Sun afternoon). | ||||||||||||||||||||
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) | WNW 10 | W 10 | W 9 | W 8 | W 8 | W 8 | W 8 | SW 8 | SW 7 | SW 7 | WSW 7 | W 7 | WSW 7 | W 9 | W 8 | WSW 8 | WSW 8 | W 9 | W 9 | W 10 | W 10 |
Wave Graph | |||||||||||||||||||||
34 | 70 | 60 | 50 | 31 | 28 | 19 | 51 | 75 | 67 | 132 | 233 | 374 | 1204 | 294 | 226 | 547 | 1279 | 1357 | 1232 | 919 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross | cross-off | off | cross-off | cross-on | cross-off | on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | 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 | 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 | — | — | — | — | — | 6 | — | — | — | — | — | 5 | 1 | — | — | 3 | 1 | 2 | — | 1 | — |
Temp °C | 21 | 21 | 17 | 21 | 21 | 18 | 20 | 20 | 17 | 18 | 18 | 17 | 18 | 18 | 17 | 18 | 18 | 16 | 17 | 17 | 17 |
Feels °C | 19 | 19 | 17 | 20 | 19 | 17 | 18 | 19 | 16 | 16 | 15 | 14 | 16 | 13 | 14 | 12 | 11 | 9 | 11 | 11 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | W 10 | W 9 | W 8 | W 8 | W 8 | W 8 | SW 8 | SW 7 | WNW 9 | SW 11 | — | — | — | W 8 | — | — | — | — | — | W 10 |
34 | 70 | 60 | 50 | 31 | 28 | 19 | 51 | 75 | 26 | 5 | — | — | — | 294 | — | — | — | — | — | 919 | |
Swell 2 Height (m) Direction Period (s) | SW 8 | NE 5 | SW 8 | NNW 5 | N 4 | SSW 7 | WNW 10 | W 9 | WNW 9 | SW 12 | — | — | — | — | — | W 13 | — | — | — | — | — |
11 | 5 | 17 | 4 | 1 | 5 | 11 | 38 | 26 | 5 | — | — | — | — | — | 3 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | W 8 | SW 8 | NNE 4 | SSW 8 | SSW 7 | SW 12 | SW 12 | W 12 | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — |
5 | 18 | 3 | 6 | 5 | 6 | 6 | 3 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 5 | — | — | — | — | — | S 3 | SW 3 | — | SW 7 | WSW 7 | W 7 | WSW 7 | W 9 | — | WSW 8 | WSW 8 | W 9 | W 9 | W 10 | — |
10 | — | — | — | — | — | 4 | 2 | — | 67 | 132 | 233 | 374 | 1204 | — | 226 | 547 | 1279 | 1357 | 1232 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 1 | 0 | 2 | 348 | 213 | 267 | 6 | 0 | 37 | 221 | 7 | 7 | 210 | 7 | 393 | 566 | 237 | 246 | 221 | 7 |
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.










