Surf Forecasts:
Mawgan Porth surf forecast from 12 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 4AM (local time) - 2.5ft (0.7m), 11s period, W swell with offshore winds.
- Most powerful swell: Wednesday 19 Aug, 1AM (local time) - 6ft (1.8m), 7s period, WNW swell with 302 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 4AM (local time) - 2.5ft (0.7m), 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 4AM. The primary swell is predicted to be 0.7m and 11s period with a secondary swell of 0.1m and 6s. 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 1.8m 7s and forecast to arrive on Wednesday (Aug 19) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Sunday (Aug 16) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 12th Aug) | 2.5ft (0.7m) 11s |
| Best Surf | 4AM (Wed 12th Aug) | 2.5ft (0.7m) 11s |
| Most Powerful | 1AM (Wed 19th Aug) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, let’s have a look at what’s cookin’ at Mawgan Porth. This is a river break, real friendly for beginners, and it can be fairly consistent when the stars align. Best swell direction is from the WNW.
To be straight with you, the next couple of weeks are a bit of a grind. We’ve got a 16-day window, but the first real chance to paddle out isn’t until Wednesday, August 12th. The morning session has a small 3ft W swell with a 10-second period, and a cross-off wind from the SE will keep the surface clean. The combined swell energy is moderate (126), but the call is "surfable waves but very ordinary conditions." It doesn’t last long.
From Wednesday afternoon straight through to the end of Sunday, August 16th, it’s pretty much a washout. Thursday morning gives a little bump with a 4ft W swell and a better 11-second period, packing more punch (267), but a cross-shore wind from the NNW messes it up. After that, we get a string of onshore and cross-onshore winds with weak, short-period slop. A few of those days look better suited for kite surfing than a surfboard if there was any size, but there isn’t.
Then comes a proper dry spell. From Monday, August 17th all the way to Saturday, August 22nd, there is nothing worth talking about. Just weak, wind-blown junk.
Finally, on Sunday, August 23rd, a pulse of swell shows up. The morning brings a 6ft W swell with an 8-second period and strong energy (432). That's a decent size, but the wind is onshore from the WSW with rain showers. It’s going to be a mess out there. That 6ft is too much for beginners. For the rest of us, it’s something to look at, but don’t expect any gems.
Later on Tuesday, August 26th, the wind howls from the SSW and the swell drops away. No go.
If I have to pick one standout in this whole forecast, and I’m being honest, it’s the morning of Thursday, August 13th. That 4ft W swell with 11 seconds has some shape to it, and the moderate energy (267) is the best we see in cleanish conditions. But that cross-shore wind from the NNW will put a texture on the face. It’s a very average call, but it’s the best we’ve got until that bigger, onshore mess arrives over a week later.
Water temp is about what you’d expect for this time of year, nothing wild.
Hang tight. This is a rough patch.
Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 18°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Fri night, min 15°C on Sat afternoon). Winds decreasing (fresh winds from the N on Sat morning, light winds from the N by Sun night). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 10 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | N 6 | N 6 | W 7 | W 7 | N 5 | W 7 | W 9 | W 8 | W 7 | W 6 | WNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 125 | 110 | 175 | 267 | 237 | 184 | 129 | 152 | 133 | 117 | 103 | 121 | 16 | 25 | 27 | 9 | 14 | 31 | 92 | 137 | 302 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | glassy | cross | cross-on | on | on | cross-on | cross | cross | cross | cross-off | cross-off | cross | cross | cross-on | cross-on | glassy | cross-on | on | on |
High Tide | 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 | 8:56AM6.26m | 9:15PM6.25m | 9:33AM5.88m | 9:53PM5.75m | |||||||
Low Tide | 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 | 3:11PM0.60m | 3:33AM0.81m | 3:48PM1.02m | ||||||||
 | |  | | | |  |  |  | | | | | | | | | | | |  | |
 | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — |
 | — | 8:45 | — | — | 8:44 | — | — | 8:42 | — | — | 8:39 | — | — | 8:37 | — | — | 8:37 | — | — | 8:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 22 | 20 | 20 | 19 | 19 | 18 | 17 | 16 | 16 | 16 | 16 | 17 | 16 | 17 | 16 | 16 | 19 | 19 | 17 |
Feels °C | 24 | 24 | 24 | 18 | 19 | 19 | 19 | 17 | 15 | 10 | 10 | 10 | 12 | 12 | 14 | 15 | 13 | 16 | 17 | 16 | 12 |
Swell 1 Height (m) Direction Period (s) | 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 | N 4 | W 7 | W 8 | NW 6 | SW 17 | SW 17 |
| kJ | 125 | 110 | 175 | 267 | 237 | 184 | 129 | 152 | 133 | 117 | 76 | 40 | 16 | 24 | 9 | 9 | 8 | 31 | 2 | 11 | 12 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 13 | — | — | — | SW 8 | W 18 | W 18 | W 7 | W 9 | — | SW 17 | — | — |
| kJ | — | — | — | — | — | — | — | — | 3 | — | — | — | 2 | 7 | 6 | 8 | 14 | — | 11 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | SW 18 | W 16 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 12 | 5 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 6 | — | — | — | — | WNW 3 | — | — | N 4 | N 5 | N 6 | N 6 | N 5 | N 4 | N 5 | — | NNW 4 | WNW 3 | W 7 | W 6 | WNW 7 |
| kJ | 1 | — | — | — | — | 2 | — | — | 16 | 62 | 103 | 121 | 65 | 25 | 27 | — | 3 | 2 | 92 | 137 | 302 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 6 | 0 | 37 | 221 | 7 | 7 | 66 | 69 | 299 | 280 | 252 | 304 | 401 | 402 | 387 | 282 | 63 | 6 | 43 | 304 |
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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