Surf Forecasts:
Mawgan Porth surf forecast from 5 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 1,822 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 0.3m 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 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 7AM.
| 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, Rusty here. Let’s cut through the noise and look at what we’ve got for the next couple of weeks.
The only game in town is Mawgan Porth. It’s a river-mouth setup, so it’s got that estuary feel. Water temp is sitting about average for the time of year, nothing wild there. Now, I gotta be straight with you—this 16-day window looks pretty bleak. The first surf worth paddling for shows up on Saturday the 5th, but it’s not a pretty picture. We get a 5ft swell from the WNW, period around 11 seconds (a touch of groundswell energy), and combined energy of 485 (moderate). The trouble is the wind is cross-on from the WNW at 6 mph, so it’s going to be a bit bumpy with small wind ripples. The report flags it as marginal, so you’re rolling the dice here.
After that, things go flat and ugly. From the afternoon of the 5th all the way through to the end of the outlook on the 20th, every session is marked as poor. That’s a long, dry run. You’ll see some bigger swell—like Monday the 7th with a 8ft WNW swell, period 13 seconds, and combined energy hitting 1783 (strong wave energy)—but it’s hammered with onshore winds at 16 mph. That’s blown-out, messy, and too big for beginners (over 5ft). For the experts, even that 8ft is rough with onshore wind. The long period (13 sec) means better shape in theory, but at a river break, it’ll likely straighten out with the wind chop.
There’s a brief moment Sunday the 13th morning with offshore wind from the east at 16 mph, but the swell is tiny at 2ft with only 104 combined energy (weak). Clean conditions, but you’ll be working for nothing. A couple of glassy or clean windows show up later—like Saturday the 19th afternoon (flat, glassy, 1ft) and Monday the 14th (tiny 1ft with offshore)—but honestly, it’s not surfable.
No standout sessions here. The setup with significant wind and onshore chop on the bigger days makes it look more suited for a kite than a paddle. If you’re desperate, the Saturday morning of the 5th is your only sniff, and it’s marginal. Otherwise, this stretch is a write-off.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sun morning, min 16°C on Fri night). Winds increasing (calm on Sat afternoon, fresh winds from the SSE by Sun morning). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Mon night. Very mild (max 18°C on Thu morning, min 15°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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) | WNW 11 | W 11 | W 10 | W 9 | W 9 | W 16 | W 13 | W 12 | W 11 | W 10 | W 10 | WNW 8 | WNW 7 | W 7 | W 6 | W 7 | W 8 | W 10 | W 9 | W 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 478 | 326 | 153 | 78 | 53 | 188 | 1783 | 1367 | 1269 | 668 | 813 | 494 | 284 | 143 | 116 | 431 | 466 | 610 | 492 | 351 | 294 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-off | cross-off | cross-on | cross-on | on | on | on | on | on | cross-on | on | on | cross-on | on | on | on | cross-on | cross-on | on |
High Tide | 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 | 5:59AM6.54m | 6:16PM6.92m | ||||||||
Low Tide | 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 | 12:17PM0.15m | 00:40AM-0.03m | |||||||
 |  |  | |  | | | |  | |  | | | |  | | | | | | | |
 | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — |
 | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — |
mm | — | — | — | — | — | — | — | — | 5 | — | 1 | — | — | — | — | — | — | — | — | — | 5 |
Temp °C | 16 | 17 | 16 | 22 | 22 | 19 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 18 | 18 | 17 | 17 | 15 | 16 |
Feels °C | 15 | 17 | 15 | 18 | 19 | 17 | 13 | 13 | 11 | 10 | 10 | 9 | 11 | 11 | 14 | 16 | 17 | 17 | 13 | 11 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | W 11 | W 10 | W 9 | W 9 | W 16 | W 13 | — | W 11 | — | — | — | WNW 10 | W 7 | WNW 8 | W 12 | W 8 | — | W 9 | — | — |
| kJ | 478 | 326 | 153 | 78 | 53 | 188 | 1783 | — | 1269 | — | — | — | 41 | 143 | 24 | 3 | 466 | — | 492 | — | — |
Swell 2 Height (m) Direction Period (s) | SW 14 | NNW 4 | N 4 | SW 13 | SW 13 | SW 12 | — | — | — | — | — | — | — | N 5 | N 5 | N 5 | — | — | — | — | — |
| kJ | 7 | 4 | 2 | 7 | 6 | 6 | — | — | — | — | — | — | — | 14 | 4 | 1 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | SW 13 | SW 13 | — | W 20 | — | — | — | — | — | — | — | — | W 9 | W 13 | — | — | — | — | — | — |
| kJ | — | 7 | 7 | — | 7 | — | — | — | — | — | — | — | — | 44 | 3 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 3 | SSW 3 | W 9 | — | W 12 | — | W 10 | W 10 | WNW 8 | WNW 7 | — | W 6 | W 7 | — | W 10 | — | W 9 | W 8 |
| kJ | — | — | — | 9 | 3 | 153 | — | 1367 | — | 668 | 813 | 494 | 284 | — | 116 | 431 | — | 610 | — | 351 | 294 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 7 | 7 | 0 | 95 | 205 | 7 | 563 | 44 | 44 | 44 | 221 | 299 | 401 | 221 | 221 | 221 | 221 | 44 | 93 | 221 | 69 |
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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