Surf Forecasts:
Maenporth surf forecast from 24 Aug 2026:
- Most powerful swell: Monday 31 Aug, 4AM (local time) - 13ft (4.0m), 10s period, WSW swell with 2,834 kJ wave energy.
Best Forecast Surf Conditions for Maenporth this week:
The most powerful waves expected at Maenporth in the next 16 days are 4.0m 10s and forecast to arrive on Monday (Aug 31) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Monday (Aug 31) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Mon 31st Aug) | 13ft (4.0m) 10s |
Table - best surf conditions forecast for Maenporth over the next 16 days.
The Lowdown
Alright, let’s get into it. I’m looking at the next 16 days for Maenporth, and honestly, it’s a pretty grim run for the most part. We’ve got a long stretch of nothing, then a flash of something big and dangerous right at the end.
Right now, the surf is a write-off. Monday the 24th through to the end of August is just poor. We’ve got a fresh cross-onshore wind from the East at 22 mph, blowing straight into the swell, making it lumpy and messy. Swell heights hang around 5 ft to 7 ft, but it’s all short-period windswell at 7 seconds, with moderate to strong combined energy (334 to 516). It’s just not surfable with that wind. The water temperature is running at 65°, which is a touch warmer than normal for the time of year.
The pattern doesn’t shift much. Tuesday the 25th stays cross-on, Wednesday the 26th drops to tiny 1 ft leftovers, and even the few moments of offshore wind, like Friday afternoon the 28th with a light 12 mph offshore from the NW, only give us a tiny 2 ft wave. That’s barely a ripple. From then on, it’s a dead zone. Saturday the 29th through to Saturday the 6th of September is mostly flat, with swell heights under 1 ft and combined energy barely reaching double digits. Long-period groundswells try to show up (16 to 18 seconds), but there’s no height to back them.
Then, on Sunday the 6th of September, things start to change. The afternoon sees a sudden jump to 12 ft from the SW, but with a short 8-second period, and a fresh cross-offshore wind. The combined energy hits 1819. The setup is big, but it’s a messy, marginal proposition. The real standout, and the only thing worth talking about here, is Monday the 7th of September. We’ve got a massive 15 ft swell from the WSW, with a very long 17-second period, and a clean, moderate offshore wind from the WNW. The combined energy is a whopping 12390. This is expert territory – over 8 ft, it’s only for the very experienced. This is a huge, powerful groundswell, and on a beach break like Maenporth, it might break too straight and be a handful. It’s a massive, powerful, and dangerous day. The forecast is for “very good surf conditions” but it’s a week away, so keep an eye on it. After that, Tuesday the 8th drops to a still solid 10 ft, but with a shorter 10-second period, and a clean offshore wind from the NW.
So, the honest truth? There’s a long, flat, and choppy run from now until the 6th of September. The only real highlight is that one day on Monday the 7th, but it’s a serious, expert-only swell. If you’re not ready for that, there’s nothing here.
- Rusty
Short Range ForecastLight rain (total 5mm), mostly falling on Wed night. Warm (max 20°C on Wed morning, min 16°C on Mon night). Winds decreasing (strong winds from the E on Mon morning, light winds from the S by Tue night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Sat morning. Warm (max 20°C on Thu afternoon, min 16°C on Thu night). Winds increasing (light winds from the SSW on Thu night, fresh winds from the WSW by Sat afternoon). | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | ESE 6 | E 7 | E 7 | E 7 | E 7 | SSW 8 | SW 7 | SSW 7 | SSW 7 | SW 7 | SW 7 | WSW 8 | SSW 7 | SSW 7 | W 8 | S 11 | S 11 | SW 7 | SW 7 | SW 7 | WSW 10 |
Wave Graph | |||||||||||||||||||||
303 | 496 | 340 | 246 | 103 | 44 | 14 | 16 | 26 | 153 | 194 | 226 | 176 | 35 | 0 | 2 | 2 | 103 | 111 | 322 | 2759 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | cross-on | cross | cross | on | off | cross-off | cross | cross-off | cross-off | cross-on | cross | cross-off |
High Tide | 3:48PM4.07m | 4:15AM3.93m | 4:39PM4.30m | 5:01AM4.18m | 5:20PM4.55m | 5:38AM4.43m | 5:56PM4.79m | 6:12AM4.66m | 6:27PM5.00m | 6:42AM4.84m | 6:57PM5.16m | 7:12AM4.97m | 7:28PM5.26m | ||||||||
Low Tide | 10:10AM2.12m | 10:48PM1.93m | 10:58AM1.82m | 11:27PM1.63m | 11:36AM1.51m | 00:00AM1.33m | 12:10PM1.21m | 00:32AM1.05m | 12:42PM0.95m | 1:03AM0.82m | 1:14PM0.75m | 1:36AM0.65m | 1:48PM0.63m | 2:10AM0.57m | |||||||
6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:31 | — | — | |
— | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — | — | 8:08 | — | |
mm | — | — | — | — | — | — | — | — | 5 | — | — | — | — | — | — | 4 | 2 | — | 1 | 2 | 1 |
Temp °C | 18 | 18 | 18 | 19 | 19 | 17 | 20 | 19 | 17 | 19 | 20 | 17 | 19 | 20 | 16 | 18 | 19 | 17 | 19 | 19 | 16 |
Feels °C | 11 | 12 | 12 | 14 | 16 | 16 | 19 | 17 | 14 | 16 | 17 | 16 | 17 | 17 | 14 | 15 | 14 | 13 | 17 | 14 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 9 | SSW 13 | W 11 | W 10 | W 10 | W 9 | W 8 | W 8 | SSW 7 | SW 7 | WNW 10 | WSW 8 | SSW 7 | SSW 7 | — | W 6 | S 11 | SW 7 | SW 7 | W 12 | — |
13 | 17 | 23 | 53 | 71 | 61 | 50 | 32 | 26 | 153 | 33 | 226 | 176 | 35 | — | 119 | 2 | 103 | 111 | 11 | — | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SW 9 | SSW 13 | SW 8 | SW 8 | E 6 | SW 7 | SSW 7 | W 8 | SW 8 | E 4 | — | WSW 8 | SW 11 | — | S 11 | — | W 6 | W 9 | — | — |
18 | 3 | 17 | 18 | 35 | 22 | 14 | 16 | 28 | 11 | 3 | — | 151 | 5 | — | 2 | — | 38 | 2 | — | — | |
Swell 3 Height (m) Direction Period (s) | W 9 | W 9 | SSW 9 | SW 13 | SW 13 | SSW 8 | E 5 | E 5 | SW 12 | W 11 | S 12 | — | — | — | — | — | — | — | W 13 | — | — |
7 | 6 | 7 | 7 | 7 | 44 | 4 | 2 | 6 | 9 | 3 | — | — | — | — | — | — | — | 3 | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 6 | E 7 | E 7 | E 7 | E 7 | — | — | — | E 4 | ESE 4 | SW 7 | SSW 7 | W 8 | W 7 | W 8 | — | WSW 6 | W 6 | S 4 | SW 7 | WSW 10 |
303 | 496 | 340 | 246 | 103 | — | — | — | 18 | 6 | 194 | 118 | 309 | 239 | 567 | — | 100 | 6 | 10 | 322 | 2759 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 404 | 262 | 203 | 24 | 20 | 20 | 20 | 90 | 232 | 20 | 28 | 20 | 18 | 50 | 50 | 31 | 257 | 176 | 30 | 518 | 532 |
Best forecast wave conditions in South Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Maenporth Surf forecast
The above surf forecast table for Maenporth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Maenporth can be found by selecting the local surf guide option on the grey menu. Our Maenporth 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 (Maenporth) 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 Maenporth 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 South Cornwall? If you are looking for accommodation near Maenporth, camping, hotels and holiday cottages in South Cornwall, consider staying in Falmouth which is 1 km (1 miles) away. Other places in and around South Cornwall where you can find information about places to rent, and car hire include Penryn which is 2 km (1 miles) away, Truro, Camborne and The Lizard.











