Surf Forecasts:
Mawgan Porth surf forecast from 6 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.4m), 11s period, W swell with glassy winds.
- Most powerful swell: Thursday 13 Aug, 4AM (local time) - 4.5ft (1.3m), 11s period, W swell with 388 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.4m), 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 Tuesday (Aug 11) at 10PM. The primary swell is predicted to be 0.4m and 11s period with a secondary swell of 0.3m and 7s. 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 1.3m 11s and forecast to arrive on Thursday (Aug 13) 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+) | 10PM (Tue 11th Aug) | 1.5ft (0.4m) 11s |
| Best Surf | 10PM (Tue 11th Aug) | 1.5ft (0.4m) 11s |
| Most Powerful | 4AM (Thu 13th Aug) | 4.5ft (1.3m) 11s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down the next couple of weeks for Mawgan Porth.
Honestly, it’s a tough start. The first week and a half is pretty much flat or just plain ugly. There’s nearly no swell to speak of, and when there is a little bump, the wind is either onshore or cross, turning it into a choppy mess. You’re looking at a big gap of nothing from now until the 17th of August.
The water is about 66°, which is a touch warmer than usual for this time of year, so you won’t be shivering while you’re staring at flat water.
But there’s a light at the end of the tunnel. On Monday morning, the 17th of August, we finally get something. A clean 4ft swell from the west, with a 9-second period. The wind is cross-off from the north-northeast, a gentle breeze. The combined energy of the swell is 324 – that’s moderate energy, but it’s the cleanest we’ve seen all forecast. The break is a river mouth, so that long-period swell should wrap in nicely, and the cross-off wind will keep the waves glassy. This is the one to wait for. It’s not a big day, but it’s the only decent option in the whole outlook.
The afternoon of the 17th gets messy again with the wind picking up, so don’t sleep in.
The 18th of August Tuesday morning has a glassy start with a 3ft swell from the north, but it’s short period and the energy is weak at 125. It’s surfable, but just barely.
Everything after that into the 21st is a total loss – onshore winds, lumpy seas, and tiny, weak swell. Not even good for a kite.
So, save your energy for the 17th of August morning. That’s your window. The rest is a write-off.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sat morning, min 15°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Tue afternoon, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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 6 | W 6 | W 10 | W 9 | W 9 | W 9 | W 9 | WNW 9 | WNW 9 | W 9 | WNW 8 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 73 | 30 | 17 | 15 | 15 | 15 | 14 | 8 | 8 | 7 | 14 | 15 | 14 | 23 | 22 | 20 | 10 | 58 | 225 | 194 | 207 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | glassy | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross | glassy | cross-on | glassy | on | on | on |
High Tide | 11:05AM5.42m | 11:35PM5.36m | 12:10PM5.16m | 00:49AM5.10m | 1:31PM5.06m | 2:14AM5.08m | 2:54PM5.26m | 3:33AM5.35m | 4:05PM5.69m | 4:37AM5.77m | 5:03PM6.19m | 5:30AM6.18m | 5:52PM6.64m | ||||||||
Low Tide | 5:21PM1.47m | 5:56AM1.60m | 6:33PM1.72m | 7:16AM1.78m | 8:03PM1.75m | 8:46AM1.70m | 9:29PM1.47m | 10:02AM1.35m | 10:38PM1.02m | 11:03AM0.90m | 11:34PM0.54m | 11:53AM0.48m | 00:21AM0.17m | ||||||||
 | |  | | | |  |  | | | | | | | | | |  | | | | |
 | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — |
 | — | 8:57 | — | — | 8:54 | — | — | 8:52 | — | — | 8:51 | — | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 16 | 17 | 16 | 20 | 20 | 18 | 20 | 19 | 18 | 19 | 19 | 18 | 20 | 21 | 19 | 21 | 21 | 20 |
Feels °C | 12 | 13 | 15 | 15 | 15 | 15 | 20 | 19 | 16 | 16 | 15 | 17 | 18 | 17 | 18 | 20 | 20 | 19 | 19 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 6 | W 5 | WNW 5 | W 9 | W 9 | W 9 | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 9 | WNW 5 | WNW 5 | WNW 8 | WNW 8 | WNW 7 | W 11 | W 10 | W 9 | W 9 |
| kJ | 73 | 30 | 8 | 8 | 15 | 15 | 14 | 8 | 8 | 7 | 14 | 15 | 7 | 9 | 22 | 20 | 10 | 58 | 225 | 194 | 207 |
Swell 2 Height (m) Direction Period (s) | N 5 | NNW 5 | N 5 | W 9 | SW 12 | WNW 4 | NW 5 | WSW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 6 | WNW 8 | WNW 8 | WSW 6 | W 10 | W 9 | W 7 | — | — | W 12 |
| kJ | 11 | 7 | 4 | 15 | 6 | 1 | 1 | 5 | 5 | 4 | 4 | 4 | 14 | 23 | 4 | 8 | 7 | 9 | — | — | 70 |
Swell 3 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | N 5 | — | SW 11 | NW 11 | W 9 | W 9 | W 9 | SW 12 | SW 12 | WSW 6 | WSW 6 | N 3 | SW 6 | SW 6 | SW 6 | — | — | — |
| kJ | 18 | 17 | 17 | 2 | — | 5 | 4 | 6 | 2 | 6 | 6 | 6 | 4 | 4 | 1 | 1 | 1 | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | WNW 4 | — | — | — | — | — | NNW 2 | NW 3 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 4 | — | — | — | — | — | 1 | 4 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 49 | 246 | 402 | 402 | 393 | 216 | 63 | 63 | 49 | 387 | 66 | 298 | 66 | 238 | 49 | 63 | 216 | 0 | 7 | 8 | 7 |
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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