
Surf Forecasts:
Mawgan Porth surf forecast from 9 Sep 2026:
- Best quality surf: Thursday 10 Sep, 1AM (local time) - 2.5ft (0.7m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 7PM (local time) - 8ft (2.4m), 9s period, W swell with 881 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 1AM (local time) - 2.5ft (0.7m), 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 Thursday (Sep 10) at 1AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.6m 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 2.4m 9s and forecast to arrive on Thursday (Sep 10) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Wednesday (Sep 16) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 10th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 1AM (Thu 10th Sep) | 2.5ft (0.7m) 8s |
| Most Powerful | 7PM (Thu 10th Sep) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what Mawgan Porth has in store for us over the next couple of weeks.
Right off the bat, I gotta be straight with you – the first half of this forecast is a real bummer. We’re looking at a long, dry spell with nothing worth paddling out for from Wednesday the 9th of September all the way through to Saturday the 19th of September. The wind is just a mess, mostly cross-onshore, and the wave quality is rated as poor for every single session. The swell is there, but it’s just not working with the wind. For example, on the morning of the 13th, we get a 5ft swell from the west with a 10-second period, which has some moderate energy to it (431), but it’s onshore wind. It’s a write-off for a good surf.
The water temperature at Mawgan Porth is sitting at 65°, which is a solid 4° warmer than normal for this time of year. It’s a nice surprise, but you won’t be enjoying it much with the conditions we’ve got.
We finally get a glimmer of hope on Sunday the 20th of September. The morning sees a tiny 2ft west swell with a light cross-offshore breeze from the southeast, making it clean. The combined energy is weak (67), but it's surfable. The afternoon is similar, with a 2ft swell from the WNW, a longer 12-second period, and a clean cross-offshore wind. The energy is still low (135), but for a groveler, it’s something.
The real standout, though, is the morning of Monday the 21st of September. The wind goes glassy. Absolutely flat calm. The swell is 3ft from the west with an 11-second period, giving us a moderate energy level of 240. This is the best window in the entire 16 days. It’s a small, clean, glassy day. The swell direction (W) is a good match for the river mouth. The only downside is that the break is a river mouth, so a longer period swell like this might make it a bit straight, but with glassy conditions, it's the only chance for a proper, clean wave. It’s a beginner-friendly size too.
After that, the wind turns back onshore and the energy drops right off through the rest of the week, with tiny 1ft to 2ft waves and fresh breezes, so don't get your hopes up for the rest of the period.
So, to sum it up: forget the first week and a half. The only real bet is that glassy Monday morning, the 21st of September. It’s not a big swell, but it’s the only clean one we’ve got.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 18°C on Thu morning, min 14°C on Wed morning). Winds increasing (light winds from the WSW on Wed night, fresh winds from the SW by Thu afternoon). | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Sat night. Warm (max 21°C on Sun night, min 17°C on Sat morning). Winds decreasing (fresh winds from the SW on Sat afternoon, light winds from the S by Sun night). | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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 9 | W 8 | WSW 5 | WSW 7 | W 10 | W 9 | W 9 | W 8 | W 8 | W 7 | W 8 | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | W 8 | W 10 | W 9 |
Wave Graph | |||||||||||||||||||||
332 | 134 | 66 | 22 | 365 | 730 | 392 | 225 | 130 | 200 | 352 | 511 | 424 | 314 | 164 | 127 | 125 | 88 | 153 | 417 | 332 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 4:52PM6.23m | 5:18AM6.20m | 5:36PM6.65m | 5:59AM6.54m | 6:16PM6.92m | 6:36AM6.73m | 6:54PM6.99m | 7:12AM6.75m | 7:29PM6.87m | 7:47AM6.62m | 8:04PM6.58m | 8:20AM6.34m | 8:38PM6.17m | ||||||||
Low Tide | 10:53AM0.87m | 11:22PM0.49m | 11:38AM0.44m | 00:03AM0.14m | 12:17PM0.15m | 00:40AM-0.03m | 12:54PM0.03m | 1:15AM-0.02m | 1:28PM0.07m | 1:48AM0.15m | 2:02PM0.27m | 2:19AM0.45m | 2:34PM0.59m | 2:50AM0.85m | |||||||
6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — | |
— | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:38 | — | — | 7:37 | — | — | 7:35 | — | |
mm | — | — | — | — | 1 | 1 | — | — | — | — | — | 8 | — | — | — | — | — | — | 2 | — | — |
Temp °C | 14 | 14 | 15 | 18 | 17 | 18 | 17 | 17 | 16 | 18 | 19 | 18 | 17 | 17 | 21 | 21 | 21 | 19 | 18 | 17 | 17 |
Feels °C | 9 | 11 | 13 | 13 | 12 | 16 | 16 | 16 | 16 | 14 | 15 | 15 | 16 | 15 | 21 | 21 | 20 | 19 | 18 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | W 9 | WNW 9 | W 8 | WSW 8 | WNW 11 | W 10 | W 9 | W 9 | W 8 | WNW 14 | W 15 | — | W 10 | W 10 | W 9 | W 9 | W 9 | W 8 | W 8 | W 10 | W 9 |
332 | 134 | 66 | 19 | 24 | 730 | 392 | 225 | 130 | 20 | 4 | — | 424 | 314 | 164 | 127 | 125 | 88 | 153 | 417 | 332 | |
Swell 2 Height (m) Direction Period (s) | — | N 6 | WSW 8 | WNW 8 | — | — | — | — | N 4 | — | — | — | SW 13 | SW 13 | NNW 4 | N 4 | SW 12 | W 13 | W 11 | — | — |
— | 30 | 40 | 21 | — | — | — | — | 1 | — | — | — | 7 | 7 | 6 | 1 | 6 | 3 | 62 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | WSW 8 | N 6 | N 5 | — | — | — | — | — | W 15 | — | — | — | — | — | SW 12 | — | W 12 | — | — | — |
— | 55 | 11 | 2 | — | — | — | — | — | 4 | — | — | — | — | — | 6 | — | 3 | — | — | — | |
Wind waves Height (m) Direction Period (s) | N 6 | — | — | WSW 5 | WSW 7 | — | — | — | — | W 8 | W 7 | W 8 | — | — | — | — | — | SSW 2 | — | — | — |
50 | — | — | 22 | 365 | — | — | — | — | 200 | 352 | 511 | — | — | — | — | — | 1 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 38 | 0 | 217 | 244 | 37 | 37 | 37 | 6 | 7 | 246 | 221 | 44 | 246 | 7 | 7 | 7 | 1 | 7 | 126 | 49 |
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.









