Surf Forecasts:
Mawgan Porth surf forecast from 29 Aug 2026:
- Most powerful swell: Monday 31 Aug, 4AM (local time) - 10ft (3.0m), 10s period, W swell with 1,737 kJ wave energy.
Best Forecast Surf Conditions for Mawgan Porth this week:
The most powerful waves expected at Mawgan Porth in the next 16 days are 3.0m 10s and forecast to arrive on Monday (Aug 31) at 4AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Mon 31st Aug) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Right then, let's have a look at what Mawgan Porth's got cookin' over the next couple of weeks. Gotta be honest with ya, the next week and a half is a bit of a write-off. We're lookin' at a whole lot of nothin' good from now until the 6th of September. The wind is just a mess—cross-onshore and fresh, thrashin' the place up. That 8ft of onshore slop on the 31st of August and the 7ft on the 4th of September? That's not for paddlin', that's for the kite crew. The water's sittin' at 65°, which is a touch warmer than normal for this time of year, but you won't be feelin' it through all that chop.
Now, the first real glimmer of hope comes on Monday the 7th of September. The wind finally cleans right up, goin' cross-off, and while the swell takes a little dip to 5ft to 6ft from the W with a decent 11-second period, it's gonna be clean. The combined energy is still solid (889 on Monday morning), but Tuesday the 8th it drops right off, so don't blink. The energy drops to weak levels (259) and the ride gets a bit smaller.
If you're lookin' for the standout, you gotta circle Thursday the 10th of September and especially Friday the 11th. Thursday morning kicks off with a punchy 8ft from the WSW (combined energy 782) and it builds to 8ft in the afternoon (combined energy 1207). That's a bit of size, but the real gem is Friday the 11th of September. We get a clean 7ft from the W, but listen to this—a 14-second period. That's proper groundswell, with combined energy maxin' out at 1744. That is strong, powerful energy. It's a river mouth, so that long-period swell might line up real nice. That one's for the experienced crew though, over 8ft it's expert territory, and it's got a "sometimes" crowd label, so you might have some company. The mornings look best with light breezes.
So, the long and short of it: suffer through the first week of filth, then keep your eyes on that Friday the 11th. It's still a bit out there, so don't bet the farm on it, but the signs are promising.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Sat morning. Very mild (max 19°C on Sat morning, min 16°C on Sat night). Winds decreasing (strong winds from the W on Sat afternoon, light winds from the SW by Mon night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed night. Very mild (max 19°C on Wed morning, min 16°C on Tue night). Winds increasing (light winds from the SW on Tue night, fresh winds from the SW by Wed morning). | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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) | SW 7 | WSW 9 | W 9 | WSW 9 | WSW 8 | W 10 | W 9 | W 9 | W 10 | W 9 | W 9 | W 8 | WSW 6 | W 8 | W 8 | W 8 | W 8 | W 12 | W 12 | W 8 | WNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 248 | 1076 | 676 | 366 | 560 | 1708 | 1263 | 763 | 354 | 188 | 120 | 104 | 201 | 545 | 535 | 417 | 428 | 1254 | 1098 | 475 | 494 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on |
High Tide | 7:00PM6.66m | 7:17AM6.50m | 7:32PM6.75m | 7:50AM6.54m | 8:07PM6.69m | 8:25AM6.45m | 8:43PM6.48m | 9:03AM6.22m | 9:24PM6.14m | 9:46AM5.87m | 10:12PM5.68m | 10:38AM5.44m | 11:12PM5.19m | ||||||||
Low Tide | 12:59PM0.37m | 1:19AM0.25m | 1:30PM0.26m | 1:50AM0.22m | 2:03PM0.29m | 2:23AM0.32m | 2:37PM0.44m | 2:58AM0.56m | 3:15PM0.71m | 3:38AM0.92m | 4:00PM1.10m | 4:27AM1.36m | 4:58PM1.53m | ||||||||
 |  |  |  | |  |  | |  | | | | | |  | |  | | | | | |
 | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — |
 | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — |
mm | 8 | — | — | 3 | 4 | 2 | — | — | — | — | — | — | — | 1 | 5 | — | — | — | — | — | — |
Temp °C | 19 | 18 | 17 | 18 | 18 | 17 | 16 | 17 | 17 | 17 | 18 | 17 | 19 | 19 | 18 | 17 | 17 | 17 | 17 | 17 | 18 |
Feels °C | 15 | 10 | 13 | 13 | 12 | 11 | 10 | 13 | 15 | 14 | 15 | 16 | 14 | 15 | 14 | 13 | 12 | 12 | 11 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | — | — | W 9 | WSW 9 | — | — | — | W 9 | W 10 | W 9 | W 9 | W 8 | SW 16 | WSW 16 | SW 15 | WSW 15 | WNW 15 | WSW 15 | WSW 14 | WNW 11 | WNW 10 |
| kJ | — | — | 676 | 366 | — | — | — | 763 | 354 | 188 | 120 | 104 | 10 | 24 | 8 | 21 | 42 | 23 | 20 | 194 | 177 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | N 5 | N 5 | N 5 | SW 16 | — | — | — | — | WSW 15 | — | — | WSW 14 | WSW 14 |
| kJ | — | — | — | — | — | — | — | — | 14 | 2 | 2 | 10 | — | — | — | — | 23 | — | — | 20 | 19 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 18 | W 18 | SW 17 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 6 | 6 | 12 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 7 | WSW 9 | — | — | WSW 8 | W 10 | W 9 | — | — | — | — | — | WSW 6 | W 8 | W 8 | W 8 | W 8 | W 12 | W 12 | W 8 | WNW 8 |
| kJ | 248 | 1076 | — | — | 560 | 1708 | 1263 | — | — | — | — | — | 201 | 545 | 535 | 417 | 428 | 1254 | 1098 | 475 | 494 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 235 | 132 | 43 | 75 | 148 | 237 | 140 | 210 | 6 | 7 | 7 | 43 | 298 | 217 | 221 | 218 | 237 | 237 | 246 | 221 | 44 |
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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