Surf Forecasts:
Mawgan Porth surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 23 Aug, 4AM (local time) - 2.5ft (0.8m), 5s period, N swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 10PM (local time) - 8ft (2.4m), 8s period, W swell with 781 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 2.5ft (0.8m), 5s period with N 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 Sunday (Aug 23) at 4AM. The primary swell is predicted to be 0.8m and 5s period with a secondary swell of 0.3m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Mawgan Porth in the next 16 days are 2.4m 8s and forecast to arrive on Wednesday (Aug 19) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Aug 22) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 23rd Aug) | 2.5ft (0.8m) 5s |
| Best Surf | 4AM (Sun 23rd Aug) | 2.5ft (0.8m) 5s |
| Most Powerful | 10PM (Wed 19th Aug) | 8ft (2.4m) 8s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, Rusty here, lookin’ at the charts for our little slice of coastline. Let’s be straight with each other.
Truth is, the next couple of weeks look pretty grim for a proper surf. We’ve got a long stretch of small, weak swell and messy winds. There’s no standout day for a top-quality session. The water’s sitting at a balmy 67°, which is much warmer than usual for this time of year, so at least a paddle won't freeze ya.
Over the next few days, it’s all onshore wind and tiny waves. On Sunday the 16th, you’re lookin’ at maybe 1 ft from the west, with a short 7-second period and a gentle cross-onshore breeze. That’s barely a ripple with combined energy of just 25. It’s poor. Monday the 17th shows a tiny bump to 3 ft from the WNW with a 6-second period, but still cross-on and choppy.
We do see a pulse of energy rolling in Wednesday the 19th, with the swell hittin’ 6 ft to 7 ft from the WNW, and combined energy jumpin’ up to 303 then 437. But the wind is on it, fresh from the west and northwest, and the wave comment is “poor surf conditions.” That’s a big lump of messy water, not a clean wave.
The onshore wind pattern keeps up right through the weekend and into the next week. We get a bit of clean weather mid-week, on Tuesday the 25th and Wednesday the 26th, with some cross-offshore breezes. The swell, though, is tiny—1.0 ft to 3 ft from the west with combined energy in the 20s and 30s. It’s clean, but there's no power to ride.
Looking at the long range, there’s a bigger bump forecast for Saturday the 29th of August. Swell jumps to 8 ft from the SW, then 10 ft from the west with combined energy skyrocketing to 1366. That’s serious energy, but it’s blown out with strong onshore winds at 22 mph. That’s not surf for anyone but the most hardcore, and even then it’ll be a battle. This one is promising but very uncertain this far out.
Bottom line: If you’re desperate for a paddle, the cleanest, smallest days around Monday the 24th with light winds might give you a float. But for real waves? This forecast is a tough one to swallow.
– Rusty
Short Range ForecastLight rain (total 3mm), mostly falling on Tue night. Very mild (max 19°C on Sun night, min 17°C on Sun afternoon). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Wed afternoon. Very mild (max 17°C on Wed afternoon, min 15°C on Thu night). Winds decreasing (fresh winds from the W on Wed afternoon, light winds from the N by Thu night). | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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 7 | W 7 | WNW 6 | W 8 | W 7 | WNW 6 | W 6 | WNW 6 | WNW 7 | W 7 | W 8 | WNW 9 | WNW 9 | W 9 | W 8 | W 8 | W 8 | W 11 | W 10 | N 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 16 | 8 | 58 | 121 | 92 | 134 | 88 | 160 | 293 | 427 | 754 | 586 | 552 | 275 | 130 | 74 | 45 | 21 | 49 | 33 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on | cross | cross-on | cross | cross-off | cross-off | cross | cross-off |
High Tide | 8:37PM6.67m | 8:56AM6.26m | 9:15PM6.25m | 9:33AM5.88m | 9:53PM5.75m | 10:13AM5.43m | 10:34PM5.22m | 10:57AM4.97m | 11:25PM4.73m | 11:55AM4.57m | 00:36AM4.36m | 1:20PM4.36m | 2:10AM4.29m | |||||||
Low Tide | 2:58AM0.40m | 3:11PM0.60m | 3:33AM0.81m | 3:48PM1.02m | 4:08AM1.28m | 4:27PM1.49m | 4:48AM1.75m | 5:13PM1.94m | 5:40AM2.17m | 6:19PM2.31m | 6:58AM2.45m | 7:54PM2.45m | ||||||||
 |  | | | | | |  |  |  | |  | |  | | | |  | | | |
 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — |
 | 8:37 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — |
mm | — | — | — | — | — | — | — | 3 | — | 1 | 2 | 2 | 2 | — | 1 | — | — | — | — | — |
Temp °C | 17 | 19 | 19 | 18 | 19 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 18 | 16 |
Feels °C | 15 | 18 | 18 | 17 | 17 | 15 | 15 | 13 | 11 | 11 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 11 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | WNW 6 | W 8 | W 16 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | WSW 15 | SW 14 | WNW 9 | W 9 | W 8 | W 8 | W 8 | NNW 6 | NNW 6 | N 5 |
| kJ | 16 | 8 | 58 | 121 | 5 | 11 | 11 | 12 | 10 | 10 | 23 | 8 | 552 | 275 | 130 | 74 | 45 | 17 | 25 | 33 |
Swell 2 Height (m) Direction Period (s) | N 4 | — | W 9 | SW 18 | — | — | — | — | — | — | — | — | WSW 14 | WSW 14 | SW 13 | SW 13 | W 11 | W 8 | W 10 | W 10 |
| kJ | 2 | — | 40 | 12 | — | — | — | — | — | — | — | — | 20 | 19 | 7 | 7 | 10 | 21 | 49 | 30 |
Swell 3 Height (m) Direction Period (s) | W 18 | W 18 | W 18 | — | — | — | — | — | — | — | — | — | — | — | SW 16 | SW 16 | SW 16 | W 11 | WSW 15 | WSW 15 |
| kJ | 7 | 6 | 6 | — | — | — | — | — | — | — | — | — | — | — | 10 | 10 | 10 | 20 | 21 | 21 |
Wind waves Height (m) Direction Period (s) | — | W 4 | — | — | W 7 | WNW 6 | W 6 | WNW 6 | WNW 7 | W 7 | W 8 | WNW 9 | — | N 4 | N 5 | N 5 | N 5 | E 2 | ESE 3 | — |
| kJ | — | 8 | — | — | 92 | 134 | 88 | 160 | 293 | 427 | 754 | 586 | — | 10 | 37 | 31 | 17 | 1 | 3 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 342 | 241 | 237 | 221 | 298 | 261 | 247 | 298 | 537 | 221 | 516 | 135 | 221 | 49 | 49 | 49 | 205 | 49 | 27 | 47 |
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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