Surf Forecasts:
Maenporth surf forecast from 14 Aug 2026:
- Most powerful swell: Tuesday 18 Aug, 10PM (local time) - 0.5ft (0.2m), 17s period, SSW swell with 29 kJ wave energy.
Best Forecast Surf Conditions for Maenporth this week:
The most powerful waves expected at Maenporth in the next 16 days are 0.2m 17s and forecast to arrive on Tuesday (Aug 18) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Thursday (Aug 20) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Tue 18th Aug) | 0.5ft (0.2m) 17s |
Table - best surf conditions forecast for Maenporth over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what Maenporth is serving up over the next couple of weeks.
Right off the bat, it's pretty grim. For the first week and a half, from Friday the 14th of August right through to Tuesday the 25th, we're looking at a total blank. The swell is barely a ripple, with heights hovering around 0.3 ft to 1.0 ft. The combined energy is weak, reading between 3 and 32 (units), so you're essentially looking at a lake. The wind is often off or cross-off, but there's just nothing to push into the bay. Even the glassy conditions on the morning of Saturday the 22nd of August won't give you anything to ride. Expect a long, frustrating stretch of flatness.
The water temp is sitting at a touch warmer than normal for this time of year, at 66°, but that's not much comfort when there's no surf.
Things finally start to stir on Wednesday the 26th of August. The morning brings a small 4 ft SW swell, but with a short period of 7 seconds and a cross-shore wind, it's messy. The better call is the afternoon. We get a 5 ft swell from the WSW, with a 9-second period, and the combined energy jumps to a moderate 325 (units). The wind is a light breeze from the west, which is a clean cross-off, making it surfable but very ordinary. It's a beginner-friendly size, but don't expect any classics.
The big one, and the only true standout in this whole forecast, comes on Friday the 28th of August. Now, this is a long-range call, so keep that in mind, but it looks promising. The morning is a write-off with a strong breeze, but the afternoon is where it gets tasty. We're looking at a massive 18 ft groundswell from the WSW, with a very long period of 13 seconds. The combined energy is a massive 10021 (units) – that's a serious amount of power. The wind is a strong cross-off from the NNE, keeping the face clean. This is a big, powerful swell. At 18 ft, this is strictly for experts only. The long period will make it a bit straight at the beach, but it could get interesting. This is the one to watch if you've got the skills and the nerve. For the rest of us, it's a good day to watch from the cliffs.
So, to sum it up: a long, flat opening, a mediocre day on the 26th, and one potential big-boy session on the 28th for the brave. Keep an eye on that last one.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Fri afternoon, min 16°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Warm (max 21°C on Tue morning, min 15°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Fri 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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) | S 13 | S 13 | W 8 | S 12 | S 20 | 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 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3 | 3 | 0 | 3 | 7 | 12 | 6 | 6 | 6 | 6 | 5 | 11 | 11 | 29 | 24 | 24 | 22 | 21 | 20 | 18 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | off | off | off |
High Tide | 7:20PM5.48m | 7:43AM5.00m | 8:02PM5.44m | 8:22AM4.94m | 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 | |||||||
Low Tide | 2:01AM0.29m | 2:13PM0.40m | 2:41AM0.41m | 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 | ||||||||
 |  |  | | | | | | | | | |  |  | | |  | | |  | |
 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:16 | — | — |
 | 8:40 | — | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | 1 | — | — | — |
Temp °C | 22 | 18 | 20 | 20 | 16 | 20 | 20 | 19 | 20 | 20 | 19 | 21 | 19 | 19 | 19 | 18 | 17 | 18 | 18 | 16 |
Feels °C | 21 | 17 | 15 | 15 | 12 | 18 | 17 | 19 | 17 | 17 | 19 | 20 | 18 | 18 | 14 | 13 | 11 | 13 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 8 | W 8 | W 8 | W 7 | E 5 | — | WNW 9 | S 18 | W 8 | W 8 | W 8 | SSW 17 | W 11 | W 10 | SSW 15 | W 9 | W 9 | WNW 9 |
| kJ | 127 | 132 | 104 | 97 | 54 | 27 | 2 | — | 28 | 6 | 12 | 11 | 11 | 29 | 82 | 78 | 22 | 356 | 230 | 101 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | — | S 12 | S 12 | WSW 8 | S 18 | S 18 | W 7 | — | S 16 | SW 17 | SW 17 | SSW 17 | SSW 16 | SSW 16 | — | SSW 14 | SSW 14 | W 9 |
| kJ | 3 | 3 | — | 3 | 3 | 12 | 6 | 6 | 8 | — | 5 | 11 | 11 | 29 | 24 | 24 | — | 21 | 20 | 40 |
Swell 3 Height (m) Direction Period (s) | S 13 | — | — | — | S 20 | S 12 | — | W 12 | S 18 | — | — | — | — | SSW 17 | — | — | — | — | — | SSW 14 |
| kJ | 3 | — | — | — | 7 | 3 | — | 3 | 6 | — | — | — | — | 29 | — | — | — | — | — | 18 |
Wind waves Height (m) Direction Period (s) | WNW 2 | NNW 3 | N 4 | NNW 4 | NNW 4 | NNE 3 | WNW 7 | W 7 | W 5 | W 8 | W 7 | W 6 | W 6 | WSW 5 | W 7 | W 7 | W 8 | — | NNW 3 | NNW 3 |
| kJ | 1 | 3 | 9 | 10 | 15 | 1 | 41 | 24 | 11 | 103 | 60 | 57 | 42 | 100 | 145 | 205 | 500 | — | 4 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 31 | 25 | 429 | 219 | 44 | 23 | 240 | 266 | 420 | 190 | 263 | 299 | 25 | 216 | 732 | 201 | 268 | 92 | 167 | 18 |
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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