Surf Forecasts:
Mawgan Porth surf forecast from 4 Sep 2026:
- Best quality surf: Saturday 5 Sep, 7PM (local time) - 3.5ft (1.1m), 10s period, W swell with glassy winds.
- Most powerful swell: Monday 7 Sep, 7AM (local time) - 7.5ft (2.3m), 14s period, W swell with 1,962 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 7PM (local time) - 3.5ft (1.1m), 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 Saturday (Sep 05) at 7PM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.2m and 4s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Mawgan Porth in the next 16 days are 2.3m 14s and forecast to arrive on Monday (Sep 07) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 3s period and expected on Sunday (Sep 06) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sat 5th Sep) | 3.5ft (1.1m) 10s |
| Best Surf | 7PM (Sat 5th Sep) | 3.5ft (1.1m) 10s |
| Most Powerful | 7AM (Mon 7th Sep) | 7.5ft (2.3m) 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 coming down the line for Mawgan Porth.
Right off the bat, I gotta be honest with you—this 16-day window is a tough watch. We’re looking at a long, frustrating gap with no real surf on offer straight away. The first few days are plagued by strong onshore winds and messy conditions, with the swell energy fluctuating but never coming together with the right wind. We’ve got to sit through the 4th, 5th, 6th, and 7th of September with nothing but poor conditions or marginal surf. It’s a grim start.
The middle of the run, from the 8th through the 11th, stays rough. The wind is hammering it from the west and northwest, creating lumpy, choppy lineups. Even when the swell gets up on the 7th and 8th, with combined energy readings of 1912 and 933 (moderate to strong energy), the onshore wind just kills any chance of a clean wave. The 12th of September shows a glimmer with a cleaner cross-offshore breeze and some waist-high swell (about 4 ft from the west), but the conditions are still described as very ordinary. It’s a pass for me.
The real light at the end of the tunnel, the only true standout in this whole forecast, is the morning of Wednesday, the 16th of September. This is our window. We’ve got a clean 4 ft west swell rolling in with an 11-second period, which gives it a bit of shape and push. The wind is forecast to be glassy—dead calm—and that’s gold. It’ll be clean as a whistle. This is the one to circle on the calendar. Don’t expect a huge wall, but for a river break, that’s a fun little wave when it’s glassy. The combined energy is a modest 328, but the quality will be all about the conditions.
After that, the 18th of September keeps things tidy with light offshore breezes and knee-to-waist high clean waves (about 3 ft from the west), a good option if you missed the Wednesday window. The last few days of the run fade out into small, weak surf.
The water temp is about average for the time of year, no wild anomalies to report here.
So, to sum it up: bite the bullet through the first week and a half, and aim for the 16th. That's your day. Unless a change comes in, keep the expectations low and the patience high.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Warm (max 22°C on Sun afternoon, min 15°C on Fri night). Winds decreasing (fresh winds from the SW on Thu night, calm by Sat afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Very mild (max 18°C on Sun night, min 15°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 8 | W 9 | W 9 | W 11 | W 11 | W 10 | W 9 | W 8 | W 9 | W 13 | W 12 | W 10 | WNW 9 | W 9 | WNW 8 | W 8 | W 7 | WSW 7 | W 8 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 612 | 562 | 473 | 545 | 326 | 154 | 78 | 68 | 132 | 1912 | 1225 | 1258 | 933 | 678 | 555 | 253 | 159 | 295 | 687 | 586 | 539 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-off | cross-off | cross | cross-on | on | on | on | on | cross-on | cross-on | on | on | cross-on | on | on | cross-on |
High Tide | 10:38AM5.44m | 11:12PM5.19m | 11:48AM5.04m | 00:35AM4.84m | 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 | ||||||||
Low Tide | 4:27AM1.36m | 4:58PM1.53m | 5:33AM1.79m | 6:21PM1.87m | 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 | |||||||
 |  |  |  | |  | | | |  | |  |  | | | | |  | | | | |
 | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — |
 | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | 11 | 1 | — | — |
Temp °C | 17 | 16 | 16 | 16 | 16 | 16 | 21 | 22 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 17 | 16 | 18 | 18 | 18 |
Feels °C | 14 | 11 | 12 | 15 | 15 | 14 | 16 | 18 | 18 | 12 | 13 | 11 | 10 | 10 | 10 | 11 | 13 | 11 | 15 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WNW 12 | W 11 | W 11 | W 10 | W 9 | W 8 | W 9 | W 13 | W 12 | — | — | — | — | W 8 | NNW 5 | N 5 | W 8 | W 9 | — |
| kJ | 20 | 20 | 106 | 545 | 326 | 154 | 78 | 68 | 123 | 1912 | 1225 | — | — | — | — | 253 | 9 | 1 | 687 | 586 | — |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 14 | SW 14 | SW 13 | N 4 | SW 13 | SW 13 | W 16 | — | — | — | — | — | — | N 5 | WNW 9 | W 13 | — | — | — |
| kJ | — | — | 19 | 7 | 7 | 2 | 7 | 6 | 132 | — | — | — | — | — | — | 21 | 28 | 3 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 13 | — | — | SW 12 | — | — | — | — | — | — | WNW 10 | — | — | — | — | — |
| kJ | — | — | — | — | — | 7 | — | — | 6 | — | — | — | — | — | — | 32 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | W 9 | W 9 | — | — | — | SSE 3 | S 3 | WSW 4 | — | — | W 10 | WNW 9 | W 9 | WNW 8 | — | W 7 | WSW 7 | — | — | W 9 |
| kJ | 612 | 562 | 473 | — | — | — | 10 | 3 | 8 | — | — | 1258 | 933 | 678 | 555 | — | 159 | 295 | — | — | 539 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 93 | 221 | 93 | 7 | 7 | 0 | 22 | 43 | 7 | 131 | 44 | 131 | 237 | 237 | 93 | 393 | 221 | 404 | 44 | 237 | 93 |
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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