Surf Forecasts:
Mawgan Porth surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 20 Aug, 1AM (local time) - 10ft (3.0m), 11s period, WNW swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 10PM (local time) - 10ft (3.0m), 11s period, WNW swell with 2,186 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 7AM (local time) - 3.5ft (1.1m), 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 Thursday (Aug 13) at 7AM. The primary swell is predicted to be 1.1m and 11s 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 3.0m 11s and forecast to arrive on Wednesday (Aug 19) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 13th Aug) | 3.5ft (1.1m) 11s |
| Best Surf | 1AM (Thu 20th Aug) | 10ft (3.0m) 11s |
| Most Powerful | 10PM (Wed 19th Aug) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Mawgan Porth over the next 16 days.
The Lowdown
Alright, let's run it down for Mawgan Porth. Looking at the full 16 days, it's a pretty glum picture for the most part. The first week is mostly a write-off, then there’s one brief moment where things look passable before it turns to junk again.
Starting on Thursday the 13th of August, it's a no-go. There's a west swell at 4ft with an 11-second period, but a cross-onshore wind from the north-northwest at 6 mph has it choppy and messy. Wave energy is weak at 269. Don't bother.
Friday the 14th is onshore and small. We've got 3ft to 3ft west swell, but it’s blown out. Energy is low (129 to 152). Not worth the drive.
Saturday the 15th is a choppy mess. A fresh cross-shore wind from the north at 19 mph is tearing up a 3ft west swell. Energy is 176. Honestly, with that strong cross-shore breeze, it’d be more fun for kite surfing than trying to paddle out.
Sunday the 16th gives us a clean look in the morning with a light cross-offshore breeze from the north-northeast. But the swell is tiny at 3ft from the north with a weak 5-second period and only 63 energy. It's a clean, flat lake.
The surf stays poor through the next week. By Wednesday the 19th of August, the swell jumps to a heavy 8ft to 10ft from the west-northwest, but it's completely blown out by a strong, choppy cross-onshore wind. The energy is massive (1043 to 1790), but the quality is terrible. That kind of size and wind is only for the hardcore experts, and even then, it’s not going to be fun.
The one and only standout is Thursday morning, the 20th of August. The wind goes light cross-offshore from the north, cleaning things right up. We get a 6ft west-northwest swell with a solid 10-second period and 891 energy. It’s not perfect, but it's the cleanest and most powerful wave in the entire forecast window. This is your best chance for a surf. Expect crowds to be possible at Mawgan Porth when it cleans up like this.
After that morning, it fades fast. The rest of the week is small and onshore. Friday the 21st gives a clean, offshore wind from the east-northeast at 6 mph with a tiny 3ft swell (145 energy). It's surfable, but nothing special. Same story for Sunday the 23rd with a glassy 2ft groundswell (101 energy) in the morning. Weak and small.
From the 25th of August onwards, it's a mess of strong onshore winds and rain. Swell stays small but windy, with poor conditions right through the end of the forecast.
So, the best advice I can give you: circle Thursday the 20th for the morning session. That's your one realistic shot. The rest of the 16-day run is a tough look.
- Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Wed night, min 16°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the N by Sat afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Tue afternoon, min 16°C on Sat night). Winds decreasing (fresh winds from the N on Sat night, calm by Sun night). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | N 5 | N 5 | W 7 | W 7 | WNW 9 | W 8 | W 7 | W 7 | W 7 | W 7 | WNW 9 | WNW 10 | WNW 11 |
Wave Graph | |||||||||||||||||||||
269 | 237 | 184 | 129 | 152 | 132 | 97 | 98 | 77 | 40 | 25 | 15 | 16 | 132 | 218 | 126 | 89 | 220 | 1033 | 1780 | 1922 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | cross | cross | cross | cross | cross-off | cross | cross | on | on | on | on | on | on | cross | cross-on | glassy |
High Tide | 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 | 10:13AM5.43m | 10:34PM5.22m | |||||||
Low Tide | 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 | 4:08AM1.28m | 4:27PM1.49m | ||||||||
6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | |
— | 8:44 | — | — | 8:42 | — | — | 8:39 | — | — | 8:37 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 19 | 19 | 18 | 17 | 17 | 16 | 17 | 17 | 16 | 18 | 19 | 19 | 20 | 21 | 19 | 16 | 16 | 17 |
Feels °C | 20 | 21 | 21 | 20 | 18 | 16 | 12 | 12 | 10 | 13 | 13 | 13 | 16 | 17 | 18 | 19 | 20 | 17 | 11 | 11 | 15 |
Swell 1 Height (m) Direction Period (s) | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | WNW 7 | W 7 | W 7 | W 7 | SW 18 | W 16 | W 7 | SW 17 | SW 17 | SW 16 | SW 16 | — |
269 | 237 | 184 | 129 | 152 | 132 | 97 | 98 | 40 | 17 | 25 | 15 | 8 | 12 | 5 | 126 | 11 | 12 | 10 | 10 | — | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 13 | — | — | — | WSW 8 | W 18 | W 18 | WNW 9 | — | — | SW 17 | — | — | — | — | — |
— | — | — | — | — | 3 | — | — | — | 6 | 7 | 6 | 16 | — | — | 11 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | N 4 | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NNW 4 | N 5 | N 5 | N 5 | N 5 | N 4 | N 4 | — | W 8 | W 7 | — | W 7 | W 7 | WNW 9 | WNW 10 | WNW 11 |
— | — | — | — | — | 25 | 79 | 62 | 77 | 40 | 20 | 13 | — | 132 | 218 | — | 89 | 220 | 1033 | 1780 | 1922 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 237 | 7 | 7 | 8 | 49 | 331 | 252 | 239 | 299 | 402 | 401 | 497 | 247 | 221 | 110 | 221 | 237 | 49 | 93 | 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.










