Surf Forecasts:
Mawgan Porth surf forecast from 19 Aug 2026:
- Best quality surf: Saturday 22 Aug, 10PM (local time) - 2.5ft (0.8m), 5s period, NNW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 10AM (local time) - 7ft (2.2m), 9s period, W swell with 759 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 10PM (local time) - 2.5ft (0.8m), 5s period with NNW 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 Saturday (Aug 22) at 10PM. The primary swell is predicted to be 0.8m and 5s period with a secondary swell of 0.4m 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 2.2m 9s and forecast to arrive on Thursday (Aug 20) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Monday (Aug 24) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 22nd Aug) | 2.5ft (0.8m) 5s |
| Best Surf | 10PM (Sat 22nd Aug) | 2.5ft (0.8m) 5s |
| Most Powerful | 10AM (Thu 20th Aug) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
G'day, Rusty here. Look, I've gotta be straight with you – the next 16 days at Mawgan Porth are a bit of a write-off. We're stuck in a pattern of onshore and cross-onshore winds that just won't let up, and the swell is mostly messy, short-period stuff. The water's sitting at 66°F with a touch warmer than normal anomaly, so that's not the problem, but the conditions are just ugly for a paddle.
The first few days are a tough watch. Wednesday the 19th kicks off with rain showers and a moderate cross-onshore breeze, making it choppy and poor. That swell is only 4ft from the WNW with a short 9-second period, and the combined energy is a weak 258. It's a no-go. Thursday the 20th sees a bit more size – 7ft in the morning from the west – but it's still onshore and lumpy, with a moderate energy of 767. That's too big for beginners and the wind is just trashing it. Friday the 21st drops back to 3ft, but it's still cross-shore and messy.
The weekend offers a tiny glimmer, but it's faint. Saturday morning the 22nd has a clean cross-offshore breeze from the NNE, but the swell is a weak 4ft from the north with a short 6-second period and energy of just 147. It's small and weak. Sunday the 23rd is even worse – a 0.7ft, 14-second groundswell from the WSW, but with that super long period at a beach break, it'll be breaking straight and close to nothing. The wind is clean, but there's no wave to ride.
From Monday the 24th, we hit a real dead zone. Offshore winds from the east keep things clean, but the swell is a pathetic 1.0ft to 1ft for days. The energy is in the double digits – 27, 26, 40 – it's essentially flat. This blank run stretches through the end of August, with only a brief bump on Wednesday the 26th when a 7ft swell shows up, but it's cross-onshore and choppy, so it's more of a kite-surfing setup than anything for a paddle board.
The final few days of the 16-day window, into early September, offer a bit of size but the same old story with the wind. The 31st of August has an 8ft swell from the west with a 10-second period and a whopper of an energy reading of 1277, but it's fresh cross-onshore and lumpy. The 1st of September has a 7ft swell, but again, onshore and messy. The 2nd sees a 7ft WNW swell, but it's cross-onshore and choppy. It's all expert-only, if you're desperate, but the wind is just not your friend.
Honestly, there's nothing here worth paddling out for. The whole 16-day window is a blank. Sometimes a spot goes quiet, and this is one of those times. Forecasts can change, but for now, I'd keep the board in the shed.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Wed morning. Very mild (max 18°C on Wed morning, min 15°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon morning, min 15°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | WNW 9 | W 6 | W 8 | W 9 | WNW 9 | W 9 | W 8 | NW 5 | W 8 | N 6 | N 5 | W 9 | WSW 14 | WSW 14 | WSW 14 | W 9 | W 9 | W 8 | WNW 10 | WNW 10 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 248 | 122 | 588 | 759 | 627 | 287 | 136 | 73 | 33 | 80 | 36 | 25 | 19 | 19 | 20 | 14 | 14 | 12 | 34 | 102 | 225 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross-on | cross-off | cross | cross | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | off | off | cross-off | cross-off | cross-on | on |
High Tide | 10:13AM5.43m | 10:34PM5.22m | 10:57AM4.97m | 11:25PM4.73m | 11:55AM4.57m | 00:36AM4.36m | 1:20PM4.36m | 2:10AM4.29m | 2:52PM4.47m | 3:30AM4.52m | 3:57PM4.83m | 4:24AM4.90m | 4:44PM5.27m | ||||||||
Low Tide | 4:27PM1.49m | 4:48AM1.75m | 5:13PM1.94m | 5:40AM2.17m | 6:19PM2.31m | 6:58AM2.45m | 7:54PM2.45m | 8:37AM2.43m | 9:24PM2.25m | 9:51AM2.12m | 10:24PM1.87m | 10:41AM1.71m | 11:07PM1.44m | ||||||||
 |  |  | |  |  | | |  | | | | | | | |  |  |  |  |  | |
 | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — |
 | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:20 | — |
mm | 2 | — | 3 | 2 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 7 | 5 | 12 |
Temp °C | 18 | 18 | 17 | 17 | 17 | 16 | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 18 | 22 | 19 | 17 | 15 | 16 | 16 |
Feels °C | 15 | 12 | 12 | 11 | 12 | 13 | 10 | 10 | 11 | 11 | 12 | 15 | 12 | 12 | 15 | 17 | 15 | 14 | 13 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 16 | W 9 | WSW 15 | SW 14 | WNW 9 | W 9 | W 8 | SW 13 | W 5 | W 7 | WNW 6 | N 5 | NNW 4 | W 9 | W 9 | N 4 | NNE 4 | W 8 | WNW 10 | WNW 10 | W 9 |
| kJ | 10 | 63 | 23 | 8 | 627 | 287 | 136 | 7 | 15 | 22 | 13 | 25 | 6 | 13 | 14 | 5 | 5 | 12 | 34 | 102 | 225 |
Swell 2 Height (m) Direction Period (s) | — | SW 16 | — | — | WSW 14 | WSW 14 | SW 13 | SW 16 | W 8 | W 8 | W 9 | W 9 | W 9 | WSW 14 | WSW 14 | W 9 | W 9 | SW 13 | W 8 | SW 13 | SW 13 |
| kJ | — | 10 | — | — | 21 | 18 | 7 | 10 | 33 | 23 | 25 | 24 | 14 | 19 | 20 | 14 | 14 | 7 | 5 | 7 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 16 | — | SW 16 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | — | — | SW 14 | SW 13 | NW 11 | NNW 3 | — | — |
| kJ | — | — | — | — | — | — | 10 | — | 10 | 22 | 21 | 21 | 19 | — | — | 8 | 7 | 5 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | WNW 9 | W 6 | W 8 | W 9 | — | N 5 | N 6 | NW 5 | N 5 | N 6 | N 5 | — | — | N 4 | N 4 | — | — | N 3 | — | SSW 3 | SE 2 |
| kJ | 248 | 122 | 588 | 759 | — | 25 | 62 | 73 | 16 | 80 | 36 | — | — | 10 | 19 | — | — | 5 | — | 3 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 436 | 537 | 221 | 135 | 563 | 44 | 69 | 49 | 48 | 49 | 235 | 0 | 49 | 49 | 49 | 303 | 255 | 216 | 7 | 49 | 66 |
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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