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) - 7ft (2.2m), 14s period, W swell with 1,744 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 2.2m 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+) | 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) | 7ft (2.2m) 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 the next couple of weeks.
Right off the bat, we’ve got a bit of a rough start. The first few days are a write-off, to be honest. The sea’s all churned up with a strong onshore wind and the water temperature is sitting at 64°, which is a touch warmer than normal for this time of year. You’re looking at poor surf conditions for the first portion of the period.
The best of the bunch, and the one to really circle on your calendar, is Friday the 18th of September at Mawgan Porth (this is our river mouth setup). The morning is looking like the standout. We’ve got a clean 7ft swell rolling in from the west, with a period of 9 seconds. The wind is light and offshore, which is going to keep the surface clean. The combined swell energy is strong (777), so there’s plenty of push. It’s a bit on the bigger side, so this one is for the experienced crew. Beginners might want to sit this one out.
The weekend before that, Saturday the 19th of September, is also worth a mention. The morning looks good again with a clean 6ft swell from the west-northwest, offshore winds, and plenty of energy behind it (697). The swell is a bit more manageable here, but it’s still a solid size. Crowds are a possibility here, so get in early.
The rest of the window is a mixed bag. There’s a bit of a gap early on, with nothing worth paddling out for until the Saturday morning of the 5th of September, but even then it’s only marginal. The swell is small and the conditions are just okay. After that, we get a couple of days of clean, but very small waves around the 12th and 13th of September. If you’re desperate, you might get a fun little log on a longboard, but it’s not going to set the world on fire.
The middle of the second week sees a pulse of bigger swell, but the wind is all over the place, making it lumpy and messy. The 16th of September brings a 5ft swell, but with a short period of 6 seconds and a strong cross-shore, it’s not going to be a pretty picture. That’s more kite-surfing territory than paddle surfing.
The long-range forecast for the 18th and 19th is promising, but as always, it’s a bit less certain that far out. Keep your fingers crossed.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Sun morning, min 15°C on Fri night). Winds decreasing (fresh winds from the WNW on Fri afternoon, calm by Sat afternoon). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Mon night. Very mild (max 17°C on Mon morning, min 14°C on Wed 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 | WNW 11 | W 11 | W 10 | W 9 | W 8 | W 16 | W 13 | W 12 | W 10 | W 10 | W 10 | WNW 8 | WNW 8 | W 8 | W 6 | W 8 | W 8 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 671 | 621 | 473 | 478 | 326 | 153 | 102 | 90 | 251 | 1607 | 1225 | 955 | 587 | 593 | 427 | 295 | 208 | 109 | 501 | 555 | 493 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-off | cross-off | cross-on | on | on | cross-on | on | on | on | cross-on | on | on | cross-on | cross-on | on | 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 | 4:58PM1.53m | 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 | 2 | — | 1 | — | — | 2 | — | — | — |
Temp °C | 17 | 17 | 16 | 16 | 17 | 16 | 23 | 23 | 18 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 18 | 19 | 18 |
Feels °C | 13 | 12 | 12 | 15 | 17 | 15 | 19 | 20 | 18 | 13 | 12 | 12 | 10 | 9 | 10 | 12 | 11 | 15 | 17 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WNW 12 | WNW 11 | W 11 | W 10 | W 9 | W 8 | W 9 | W 13 | — | W 10 | — | — | — | — | N 5 | N 5 | W 12 | — | — |
| kJ | 20 | 20 | 106 | 478 | 326 | 153 | 102 | 90 | 196 | 1607 | — | 955 | — | — | — | — | 8 | 4 | 3 | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 14 | SW 14 | SW 13 | N 4 | SW 13 | SW 13 | W 16 | — | — | — | — | — | — | — | — | W 13 | — | — | — |
| kJ | — | — | 19 | 7 | 7 | 2 | 7 | 6 | 251 | — | — | — | — | — | — | — | — | 3 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 13 | — | — | SW 12 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 7 | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | W 9 | W 9 | — | — | — | S 3 | — | — | — | W 12 | — | W 10 | W 10 | WNW 8 | WNW 8 | W 8 | W 6 | W 8 | W 8 | W 9 |
| kJ | 671 | 621 | 473 | — | — | — | 7 | — | — | — | 1225 | — | 587 | 593 | 427 | 295 | 208 | 109 | 501 | 555 | 493 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 140 | 221 | 135 | 7 | 7 | 0 | 7 | 43 | 7 | 27 | 44 | 140 | 529 | 221 | 221 | 246 | 221 | 402 | 7 | 44 | 237 |
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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