Surf Forecasts:
Mawgan Porth surf forecast from 10 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 1AM (local time) - 1.5ft (0.5m), 11s period, W swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 1PM (local time) - 4ft (1.2m), 10s period, W swell with 288 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 1AM (local time) - 1.5ft (0.5m), 11s 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 Wednesday (Aug 12) at 1AM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.3m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Mawgan Porth in the next 16 days are 1.2m 10s and forecast to arrive on Thursday (Aug 13) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Tuesday (Aug 11) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 12th Aug) | 1.5ft (0.5m) 11s |
| Best Surf | 1AM (Wed 12th Aug) | 1.5ft (0.5m) 11s |
| Most Powerful | 1PM (Thu 13th Aug) | 4ft (1.2m) 10s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s get down to brass tacks on what’s shaking at Mawgan Porth.
Honestly, we’re looking at a proper dry spell to kick things off. There’s a long gap with nothing truly rideable for nearly two weeks. It’s all cross-shore chop and micro-swells that just look ordinary.
From the 10th all the way through the 21st, it's a patience game. You’ve got small, clean windows like the morning of the 11th (1ft, 13-second period from the W) but it’s just too weak. Or a bigger, messier 4ft on the afternoon of the 13th that’s blown out. The 19th sees a little bump (2ft, 9-second period) but once again, it’s cross-shore. No real quality to get stoked about.
Now, the big moment. The 22nd of August. That’s the one that grabs your attention. We’ve got a big WNW swell pushing in at 12ft with a solid 11-second period. The energy readings are through the roof - 3259 in the morning and 2716 in the afternoon. That’s massive. For the experts only, this is a serious session. For anybody else, it's a washing machine. The north cross-shore wind will make it lumpy, and at this size, it’s just too big for a river break. More of a kite-surfing day than a paddle day.
The next morning, Sunday the 23rd, is your best shot at manageable big surf. We're talking 8ft from the NW, with a clean cross-offshore wind. The period is a short, punchy 7-seconds, but the energy is still solid at 669. Still a big wave, but the conditions should be good for those with the right gear.
And here’s the sneaky gem for the patient crew. Monday the 24th of August. The swell is small at 3ft, but it’s a long-period groundswell from the W with a 14-second period. And the wind? Glass. Dead flat glass in the morning. The energy reading is moderate at 365. This is going to produce some clean, perfectly formed lines on the point. It’s the reward for waiting out the flat spell.
The water’s running about 66°F, which is a touch warmer than average for this time of year.
So, that’s the picture. A long wait, a monster day for experts on the 22nd, and a clean, small-wave day on the 24th. Choose your moment.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Tue afternoon, min 17°C on Mon afternoon). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Thu afternoon, min 16°C on Sat morning). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 8 | W 8 | WNW 8 | W 13 | W 11 | W 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 23 | 33 | 20 | 13 | 59 | 123 | 139 | 175 | 267 | 282 | 181 | 102 | 220 | 136 | 142 | 93 | 55 | 39 | 16 | 8 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | off | cross-off | cross-on | cross | cross-on | on | on | on | cross-on | cross | cross | cross-on | cross | cross | cross | cross-off |
High Tide | 4:05PM5.69m | 4:37AM5.77m | 5:03PM6.19m | 5:30AM6.18m | 5:52PM6.64m | 6:17AM6.50m | 6:37PM6.94m | 7:00AM6.68m | 7:19PM7.04m | 7:40AM6.69m | 7:58PM6.95m | 8:18AM6.55m | 8:37PM6.67m | |||||||
Low Tide | 10:38PM1.02m | 11:03AM0.90m | 11:34PM0.54m | 11:53AM0.48m | 00:21AM0.17m | 12:37PM0.18m | 1:04AM-0.04m | 1:19PM0.04m | 1:44AM-0.06m | 1:57PM0.07m | 2:22AM0.10m | 2:35PM0.27m | 2:58AM0.40m | |||||||
 |  | | | | | | |  | |  | | | | | | | | | | |
 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — |
 | 8:50 | — | — | 8:47 | — | — | 8:45 | — | — | 8:44 | — | — | 8:42 | — | — | 8:39 | — | — | 8:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 19 | 23 | 24 | 21 | 24 | 23 | 20 | 20 | 20 | 19 | 18 | 17 | 18 | 17 | 16 | 16 | 17 | 17 | 16 |
Feels °C | 14 | 18 | 20 | 21 | 20 | 22 | 21 | 19 | 20 | 20 | 19 | 17 | 14 | 16 | 14 | 13 | 12 | 14 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | W 5 | W 8 | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | — | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 |
| kJ | 13 | 33 | 20 | 11 | 59 | 123 | 139 | 175 | 267 | 282 | 181 | 102 | — | 136 | 142 | 93 | 55 | 39 | 16 | 8 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | N 4 | N 4 | W 9 | WNW 7 | SW 6 | — | — | — | — | — | — | — | W 13 | — | — | — | WSW 8 | W 18 | W 4 |
| kJ | 23 | 5 | 1 | 7 | 10 | 1 | — | — | — | — | — | — | — | 3 | — | — | — | 6 | 7 | 1 |
Swell 3 Height (m) Direction Period (s) | SW 7 | SW 7 | W 10 | W 13 | SW 6 | — | — | — | — | — | — | — | — | — | — | — | — | N 4 | — | W 11 |
| kJ | 7 | 7 | 8 | 13 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 2 |
Wind waves Height (m) Direction Period (s) | N 4 | — | SE 2 | SSE 2 | — | — | — | — | — | — | — | WNW 5 | W 9 | N 4 | N 5 | N 5 | N 4 | — | NW 5 | NNW 3 |
| kJ | 9 | — | 1 | 1 | — | — | — | — | — | — | — | 44 | 220 | 9 | 23 | 15 | 6 | — | 10 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 48 | 7 | 388 | 239 | 0 | 0 | 19 | 37 | 37 | 8 | 69 | 43 | 49 | 27 | 49 | 49 | 49 | 7 | 388 | 282 |
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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