Surf Forecasts:
Mawgan Porth surf forecast from 20 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 7PM (local time) - 3.5ft (1.0m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 1AM (local time) - 4.5ft (1.4m), 9s period, W swell with 339 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 4AM (local time) - 1.5ft (0.5m), 8s 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 Saturday (Aug 22) at 4AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.5m and 5s. 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 1.4m 9s and forecast to arrive on Friday (Aug 21) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 22nd Aug) | 1.5ft (0.5m) 8s |
| Best Surf | 7PM (Wed 26th Aug) | 3.5ft (1.0m) 10s |
| Most Powerful | 1AM (Fri 21st Aug) | 4.5ft (1.4m) 9s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Right folks, Rusty here. Let's have a look at what's on the cards for our stretch of coast. I gotta be straight with you – it's a grim outlook. We're looking at a run of poor conditions that stretches right across the sixteen days, with barely a window worth paddling out for.
We kick off on Thursday the 20th of August and it's not pretty. The water is sitting at 66°, which is a touch warmer than normal for this time of year, but don't let that fool you. The wave energy is moderate at best with a combined energy of 648, but a 7 ft WNW swell is getting torn apart by a strong 16 mph cross-onshore wind. It's choppy and messy – a total write-off.
Friday the 21st offers no relief. Smaller swell around 3 ft, but the wind is still howling from the north at 16 mph, putting a nasty cross-shore chop on it. Forget it.
Saturday morning the 22nd is the only time in the whole run that might get you thinking. It's small, just 2 ft, but the wind goes light and cross-offshore from the ENE at 6 mph. The water cleans right up. You'll be on a foamie or a log, but the waves are surfable. The combined energy is only 118, and the period is a bit short at 10 seconds, so there's not much grunt. It's not a standout by any means, it's just the least offensive option in a desert. If you're desperate, that's your window, but keep the expectations on the floor.
After that Saturday morning blip, we're back into the doldrums. Sunday the 23rd has a tiny 0.7 ft swell with a long period of 14 seconds. That groundswell won't do much here at the beach break, and it'll just be fat and weak. The rest of the week into late August and early September is a relentless cycle of onshore winds and choppy sea states. We get some strong offshore winds on the 24th, but the swell is a pathetic 0.7 ft – you'll be scratching for nothing. There's a glimmer on Thursday the 27th morning with glassy conditions and a 3 ft swell, but it's still weak. The combined energy is 177, which is feeble, and it's really just small and weak.
The swell tries to pick up around the 29th of August with a 7 ft WNW swell and combined energy of 597, but it's accompanied by a 16 mph onshore wind, making it a complete washing machine. That kind of size with that wind is for kites, not paddles. The same story repeats on the 3rd of September with a 7 ft swell and 31 mph near-gale wind – blown out completely.
Look, I hate to be the bearer of bad news, but there are no good surf options in this whole 16-day window. The only surfable moment is that Saturday morning on the 22nd, and it's barely a ripple. This is one of those stretches where it's best to leave the boards in the shed, watch the forecasts, and hope for a change. It tends not to stay poor for long, but for now, it's a hard pass.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Very mild (max 18°C on Sun morning, min 14°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Tue afternoon. Warm (max 22°C on Mon afternoon, min 17°C on Sun night). Winds increasing (light winds from the ESE on Sun night, strong winds from the ESE by Mon night). | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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 9 | W 8 | W 8 | W 8 | W 10 | W 9 | W 9 | WSW 14 | SW 13 | WSW 10 | WSW 9 | WSW 13 | WSW 13 | WNW 10 | WNW 10 | W 9 | W 9 | W 8 | W 9 |
Wave Graph | ||||||||||||||||||||
627 | 339 | 116 | 86 | 32 | 65 | 40 | 24 | 19 | 46 | 38 | 8 | 18 | 17 | 20 | 31 | 60 | 56 | 89 | 168 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | off | off | cross-off | cross-off | cross | cross | cross-on | cross-off |
High Tide | 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 | 5:04AM5.32m | 5:21PM5.72m | ||||||||
Low Tide | 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 | 11:20AM1.28m | 11:43PM1.03m | |||||||
— | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | |
8:30 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 6 | 4 | 5 | 2 | 14 |
Temp °C | 17 | 16 | 15 | 15 | 15 | 17 | 17 | 16 | 18 | 19 | 18 | 21 | 22 | 20 | 20 | 19 | 18 | 18 | 20 | 17 |
Feels °C | 12 | 12 | 10 | 10 | 12 | 13 | 13 | 13 | 16 | 17 | 16 | 13 | 14 | 14 | 17 | 16 | 17 | 15 | 19 | 17 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | W 9 | W 8 | W 8 | N 5 | N 6 | W 9 | W 9 | N 4 | SW 13 | WSW 10 | WSW 9 | W 9 | W 8 | NE 5 | WNW 10 | W 9 | W 9 | W 8 | W 9 |
21 | 339 | 116 | 86 | 13 | 31 | 40 | 24 | 5 | 46 | 38 | 8 | 6 | 6 | 6 | 31 | 60 | 56 | 89 | 168 | |
Swell 2 Height (m) Direction Period (s) | — | WSW 14 | SW 13 | SW 13 | WNW 5 | W 10 | WSW 15 | WSW 15 | W 9 | W 9 | N 4 | W 9 | WSW 13 | WSW 13 | WNW 10 | SW 8 | SW 13 | SW 12 | WNW 11 | SSW 8 |
— | 18 | 7 | 7 | 17 | 65 | 21 | 21 | 14 | 6 | 3 | 7 | 18 | 17 | 20 | 10 | 7 | 6 | 40 | 54 | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 16 | SW 16 | W 8 | WSW 15 | SW 12 | — | WSW 14 | — | SW 14 | N 4 | SW 9 | SW 8 | SSW 8 | NE 5 | — | N 6 | N 6 | SW 12 |
— | — | 10 | 10 | 32 | 22 | 6 | — | 19 | — | 8 | 1 | 3 | 3 | 7 | 3 | — | 1 | 1 | 6 | |
Wind waves Height (m) Direction Period (s) | WNW 9 | N 5 | N 5 | N 5 | — | — | N 5 | N 4 | — | NNW 4 | — | E 3 | ENE 3 | E 4 | ESE 3 | — | SW 8 | SW 6 | SW 7 | — |
627 | 27 | 54 | 33 | — | — | 20 | 10 | — | 6 | — | 4 | 3 | 17 | 3 | — | 51 | 46 | 73 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 221 | 44 | 69 | 245 | 48 | 0 | 49 | 48 | 22 | 12 | 7 | 271 | 210 | 207 | 207 | 22 | 2 | 42 | 2 | 0 |
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.










