Surf Forecasts:
Mawgan Porth surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 1AM (local time) - 3.5ft (1.0m), 9s period, W swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 7PM (local time) - 5ft (1.6m), 9s period, WNW swell with 380 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 1AM (local time) - 3.5ft (1.0m), 9s 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 Thursday (Aug 13) at 1AM. The primary swell is predicted to be 1.0m and 9s period. 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 1.6m 9s and forecast to arrive on Wednesday (Aug 19) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Sunday (Aug 16) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 13th Aug) | 3.5ft (1.0m) 9s |
| Best Surf | 1AM (Thu 13th Aug) | 3.5ft (1.0m) 9s |
| Most Powerful | 7PM (Wed 19th Aug) | 5ft (1.6m) 9s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, let’s break down what’s cooking at Mawgan Porth.
Honestly, it’s a pretty bleak outlook for the next couple of weeks. There’s a long dry spell of poor surf from the start through to the 23rd of August. The water is running much warmer than usual for this time of year, at 66°, which is about 4° above the average – that’s a noticeable shift.
For the first week and a half, the swell is tiny, mostly under 4 ft, and the wind is a constant problem – cross-shore, onshore, cross-on, with moderate to fresh breezes. The wave energy is mostly weak, with readings like 112 to 437, but it’s all blown out. There’s a bit of a bump on the 19th and 20th when the swell hits 5 ft to 7 ft from the WNW, but the wind is cross-on at 15 to 19 mph, making it lumpy and choppy. That’s for experts only, and even then, it’s not pretty.
The one real standout, and the only time worth paddling out, is the morning of Monday the 24th of August. Finally, we get a solid 6 ft west swell, with a period of 8 seconds and moderate energy (441). The wind is a light SSE at 9 mph, cross-off, keeping the surface clean. This is your shot. The break is a river mouth, best for beginners, and it’s fairly consistent. Crowds are “sometimes,” so you might have a few mates out, but it’s the best option by far. The swell direction is west, which is close to the optimum WNW. The afternoon of the 24th also looks good, with 6 ft and similar clean conditions.
After that, it’s back to choppy, onshore slop through the rest of the month. Keep your eyes on the 24th – that’s the one.
Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 16°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the N by Fri night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Tue morning, min 15°C on Sun night). Winds decreasing (fresh winds from the N on Sat afternoon, light winds from the N by Sun night). | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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 9 | W 9 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | N 5 | N 5 | W 7 | W 7 | W 7 | WNW 8 | W 7 | W 7 | W 6 | W 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 110 | 175 | 269 | 237 | 184 | 129 | 153 | 132 | 99 | 78 | 73 | 29 | 24 | 15 | 8 | 24 | 148 | 128 | 80 | 126 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross | cross-on | cross-on | on | cross-on | cross | cross | cross | cross | cross-off | cross | cross | cross | on | on | on | on | on |
High Tide | 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 | 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 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — |
 | 8:45 | — | — | 8:44 | — | — | 8:42 | — | — | 8:39 | — | — | 8:37 | — | — | 8:37 | — | — | 8:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 27 | 23 | 20 | 20 | 20 | 19 | 19 | 18 | 17 | 16 | 16 | 17 | 17 | 16 | 16 | 18 | 18 | 19 | 20 | 19 |
Feels °C | 23 | 24 | 19 | 20 | 21 | 20 | 18 | 16 | 12 | 10 | 11 | 14 | 14 | 13 | 14 | 17 | 18 | 19 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | 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 | W 7 | WNW 8 | W 7 | W 7 | SW 17 | SW 17 |
| kJ | 110 | 175 | 269 | 237 | 184 | 129 | 153 | 132 | 99 | 78 | 54 | 27 | 24 | 15 | 8 | 24 | 148 | 128 | 11 | 12 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 13 | — | — | — | WSW 8 | W 18 | W 18 | N 4 | — | W 16 | SW 17 | — | — |
| kJ | — | — | — | — | — | — | — | 3 | — | — | — | 6 | 7 | 6 | 1 | — | 5 | 11 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | SW 18 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 12 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 3 | — | — | — | — | — | — | N 4 | N 5 | N 5 | N 5 | N 5 | N 4 | N 4 | — | WSW 4 | — | — | W 6 | W 6 |
| kJ | 2 | — | — | — | — | — | — | 22 | 47 | 45 | 73 | 29 | 8 | 7 | — | 13 | — | — | 80 | 126 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 0 | 37 | 237 | 7 | 7 | 66 | 49 | 299 | 280 | 49 | 246 | 49 | 386 | 402 | 43 | 7 | 7 | 298 | 241 |
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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