Surf Forecasts:
Maenporth surf forecast from 16 Aug 2026:
- Most powerful swell: Sunday 23 Aug, 4PM (local time) - 7ft (2.1m), 7s period, E swell with 392 kJ wave energy.
Best Forecast Surf Conditions for Maenporth this week:
The most powerful waves expected at Maenporth in the next 16 days are 2.1m 7s and forecast to arrive on Sunday (Aug 23) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Thursday (Aug 20) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Sun 23rd Aug) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Maenporth over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let's be straight with you—this 16-day stretch is a tough one. We're looking at a whole lot of nothing for the first week, and even when things start to move, it's not going to be pretty. I’ve scoured the charts, and honestly, it’s a waiting game.
The first proper surfable window is way off, around the 23rd of August, and even that is a stretch. For the next week, we're staring at flatness. The swell energy is weak, barely registering a pulse, with readings mostly in the single digits to low 20s. We've got some clean mornings thanks to offshore breezes, but there's simply no wave to ride. It's going to be a long, quiet stretch.
Now, even when that new swell tries to show up on the 23rd, it's messy. We've got a bump in energy on the 23rd, jumping to 145 and then 196, but that's from a short-period, east-northeast windswell. The direction is all wrong for Maenporth, which is sheltered and really needs something from the south-southeast. Expect a crumbly, weak 5ft wave that just won't have any push. It's better than nothing for the keen ones, but it's not something to get excited about. This continues into the 24th, with energy still present (138) but still from a poor angle.
Finally, on Friday the 28th, we see the most significant swell of the period. It pushes up to 6ft with energy readings in the low 300s (305 on the morning). But here's the kicker: the wind is cross-onshore from the east, and the period is a short 7 seconds. It’s gonna be a lumpy, bumpy, wind-blown mess. For a spot like Maenporth, it could be more interesting for the kiters than the surfers. It's not our day.
There is a bright spot, and it's a weird one. On Sunday the 30th, the swell drops back to 3ft from the west-southwest, but the energy is still there (108), and the wind goes glassy in the afternoon. That could clean up the leftovers and offer a few fun little runners. It’s not a standout, but it might be the most user-friendly wave of the whole window. But as for a true standout day to circle on the calendar? I just don't see it. The water is a touch warmer than normal for this time of year at 66°F, so a wetsuit is still needed, but it's not freezing.
Be patient. When the sea gives us nothing, you can’t force it. Check back with me next week, and maybe we’ll have something more to talk about.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Mon morning, min 16°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Very mild (max 18°C on Wed morning, min 14°C on Fri night). Winds decreasing (fresh winds from the W on Wed afternoon, light winds from the N by Fri night). | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | WSW 8 | S 18 | S 18 | S 18 | S 18 | S 16 | SW 17 | SW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | WSW 11 | SSW 15 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 12 | 6 | 6 | 6 | 6 | 5 | 11 | 11 | 29 | 24 | 24 | 22 | 21 | 20 | 18 | 17 | 17 | 24 | 37 | 21 | 21 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off |
High Tide | 8:42PM5.28m | 9:00AM4.80m | 9:22PM5.02m | 9:40AM4.60m | 10:03PM4.69m | 10:24AM4.37m | 10:50PM4.33m | 11:15AM4.13m | 11:46PM3.99m | 12:20PM3.93m | 00:55AM3.75m | 1:34PM3.84m | 2:10AM3.66m | ||||||||
Low Tide | 2:52PM0.53m | 3:19AM0.66m | 3:30PM0.77m | 3:56AM0.98m | 4:08PM1.10m | 4:32AM1.34m | 4:46PM1.47m | 5:09AM1.70m | 5:29PM1.85m | 5:52AM2.03m | 6:26PM2.18m | 6:56AM2.28m | 8:10PM2.35m | ||||||||
 |  |  | | | | | | | | |  |  | |  | | | | | | | |
 | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — |
 | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 19 | 20 | 20 | 19 | 20 | 19 | 18 | 18 | 18 | 17 | 18 | 18 | 16 | 17 | 17 | 14 | 17 | 17 | 15 |
Feels °C | 15 | 16 | 18 | 18 | 18 | 18 | 18 | 15 | 15 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 14 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | WNW 9 | S 18 | S 16 | W 8 | W 8 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | W 9 | SSW 14 | W 9 | W 8 | W 8 | W 8 | W 8 | W 10 | W 9 |
| kJ | 27 | 16 | 8 | 28 | 6 | 5 | 11 | 11 | 29 | 24 | 24 | 22 | 637 | 20 | 235 | 161 | 34 | 48 | 31 | 71 | 43 |
Swell 2 Height (m) Direction Period (s) | WSW 8 | S 18 | — | S 18 | — | — | SW 17 | SW 17 | — | — | — | — | SSW 14 | — | SSW 14 | SSW 13 | SSW 13 | WSW 11 | WSW 11 | SSW 15 | SSW 15 |
| kJ | 12 | 6 | — | 6 | — | — | 11 | 11 | — | — | — | — | 21 | — | 18 | 17 | 17 | 12 | 37 | 21 | 21 |
Swell 3 Height (m) Direction Period (s) | S 12 | — | S 18 | — | — | — | — | — | — | — | — | — | — | — | — | SW 16 | SW 16 | SSW 16 | SSW 15 | SW 12 | NW 6 |
| kJ | 3 | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | 10 | 10 | 24 | 21 | 6 | 1 |
Wind waves Height (m) Direction Period (s) | NNW 3 | NW 3 | WNW 4 | W 6 | W 8 | W 7 | W 6 | W 6 | W 6 | W 7 | W 7 | W 8 | — | W 9 | WNW 9 | NNE 3 | WNW 7 | N 3 | — | — | E 2 |
| kJ | 3 | 3 | 5 | 28 | 131 | 79 | 76 | 56 | 98 | 192 | 311 | 625 | — | 533 | 391 | 1 | 62 | 1 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 228 | 421 | 249 | 299 | 435 | 190 | 172 | 879 | 424 | 201 | 640 | 297 | 485 | 576 | 25 | 25 | 429 | 25 | 203 | 264 | 203 |
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.
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