Surf Forecasts:
Mawgan Porth surf forecast from 6 Sep 2026:
- Best quality surf: Friday 11 Sep, 10PM (local time) - 3.5ft (1.0m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 7AM (local time) - 7ft (2.1m), 14s period, W swell with 1,748 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 10PM (local time) - 3.5ft (1.0m), 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 Friday (Sep 11) at 10PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.3m and 4s. 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 2.1m 14s and forecast to arrive on Monday (Sep 07) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Sep 06) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Fri 11th Sep) | 3.5ft (1.0m) 8s |
| Best Surf | 10PM (Fri 11th Sep) | 3.5ft (1.0m) 8s |
| Most Powerful | 7AM (Mon 7th Sep) | 7ft (2.1m) 14s |
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’s in store for Mawgan Porth over the next couple of weeks.
Right off the bat, I gotta be straight with you – the next week and a half is a tough one. We’ve got a major gap here with no real surf on offer. Sunday the 6th kicks off with tiny, weak waves, and that sets the tone for the next seven days. The wind is all over the place, mostly onshore or cross-onshore, and it’s just churning things up. The swell is small and messy, and the wave energy is weak (mostly under 500). You’re looking at a lot of poor surf conditions with no real rideable windows. It’s a blank run, plain and simple.
There’s a bit of a bump in size from Monday the 7th to Tuesday the 8th, with swell hitting around 7ft from the WNW, and the energy cranks up into the strong range (1632), but the wind is howling onshore. It’s messy, bumpy, and just not fun. That kind of size and wind at a river break is honestly more interesting for kite surfing than a traditional paddle session. The whole first week is a write-off.
Now, we finally get a glimmer of hope on Wednesday the 16th of September. The morning session is the standout. We’ve got a 5ft swell rolling in from the W, with a period of 10 seconds, giving it a solid energy level (499 – moderate). The wind is glassy – it’s a light southerly at just 3 mph. That’s a major positive. The water temp is about average for the time of year, nothing wild. For a river break, that glassy setup is a rare treat, and the waves should be clean and shape up nicely. The crowd factor is "sometimes", so you might see a few others out, but it won’t be a circus. This is easily the best call of the whole forecast.
The afternoon of the 16th turns a bit cross-onshore, and the rest of the second week fades back into smaller, weaker waves with more onshore winds. The 21st of September (Monday morning) shows another potential bright spot with a 6ft swell from the N and a clean cross-off breeze, but we’re a long way out on that one, so keep an eye on it.
For now, circle Wednesday the 16th morning on the calendar. That’s your window.
- Rusty
Short Range ForecastLight rain (total 8mm), mostly falling on Mon night. Warm (max 21°C on Sun morning, min 14°C on Mon night). Winds increasing (light winds from the SSE on Sat night, fresh winds from the WNW by Tue afternoon). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Very mild (max 18°C on Thu night, min 15°C on Tue night). Winds decreasing (fresh winds from the NW on Tue night, light winds from the W by Fri morning). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 | W 9 | W 16 | W 13 | W 12 | W 11 | W 9 | WNW 9 | WNW 9 | WNW 8 | W 8 | W 8 | W 6 | WSW 8 | W 10 | W 9 | W 8 | WSW 8 | W 8 | WSW 7 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 78 | 55 | 254 | 1632 | 1106 | 716 | 731 | 586 | 662 | 463 | 264 | 140 | 143 | 385 | 518 | 264 | 205 | 104 | 95 | 186 | 935 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-on |
High Tide | 1:21PM4.91m | 2:12AM4.87m | 2:52PM5.18m | 3:32AM5.24m | 4:00PM5.69m | 4:31AM5.74m | 4:52PM6.23m | 5:18AM6.20m | 5:36PM6.65m | 5:59AM6.54m | 6:16PM6.92m | 6:36AM6.73m | 6:54PM6.99m | ||||||||
Low Tide | 7:09AM2.02m | 8:06PM1.87m | 8:47AM1.83m | 9:32PM1.48m | 9:59AM1.38m | 10:33PM0.96m | 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 | |||||||
 |  |  | |  |  | | |  | | |  | | | | | |  | | | | |
 | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — |
 | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — |
mm | — | — | — | — | — | 8 | — | — | 1 | — | — | 1 | — | — | 2 | — | — | — | — | — | 2 |
Temp °C | 21 | 21 | 18 | 16 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 17 | 18 | 19 | 18 |
Feels °C | 16 | 18 | 18 | 12 | 13 | 12 | 11 | 10 | 9 | 11 | 11 | 12 | 13 | 13 | 17 | 17 | 17 | 17 | 15 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 13 | W 12 | W 11 | — | — | — | — | N 6 | N 5 | N 5 | — | W 10 | W 9 | W 8 | WSW 8 | W 8 | WNW 10 | — |
| kJ | 78 | 55 | 120 | 1632 | 1106 | 716 | — | — | — | — | 22 | 9 | 2 | — | 518 | 264 | 205 | 104 | 95 | 34 | — |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | W 16 | — | — | — | — | — | — | — | — | WSW 8 | W 12 | — | — | — | — | NNW 4 | WNW 11 | — | — |
| kJ | 7 | 6 | 254 | — | — | — | — | — | — | — | — | 12 | 3 | — | — | — | — | 3 | 12 | — | — |
Swell 3 Height (m) Direction Period (s) | — | W 20 | SW 12 | — | — | — | — | — | — | — | — | W 13 | — | — | — | — | — | — | N 4 | W 15 | — |
| kJ | — | 8 | 6 | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | 2 | 4 | — |
Wind waves Height (m) Direction Period (s) | S 3 | SSW 3 | SW 3 | — | — | — | W 9 | WNW 9 | WNW 9 | WNW 8 | W 8 | W 8 | W 6 | WSW 8 | — | — | — | — | SSW 3 | WSW 7 | W 11 |
| kJ | 7 | 3 | 2 | — | — | — | 731 | 586 | 662 | 463 | 264 | 140 | 143 | 385 | — | — | — | — | 4 | 186 | 935 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 205 | 205 | 7 | 37 | 44 | 7 | 44 | 279 | 93 | 93 | 210 | 44 | 7 | 217 | 7 | 7 | 43 | 0 | 6 | 7 | 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.
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