Surf Forecasts:
Maenporth surf forecast from 12 Sep 2026:
- Most powerful swell: Saturday 19 Sep, 7AM (local time) - 8ft (2.4m), 7s period, WSW swell with 607 kJ wave energy.
Best Forecast Surf Conditions for Maenporth this week:
The most powerful waves expected at Maenporth in the next 16 days are 2.4m 7s and forecast to arrive on Saturday (Sep 19) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 8s period and expected on Saturday (Sep 19) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Sat 19th Sep) | 8ft (2.4m) 7s |
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's on the cards for Maenporth over the next couple of weeks.
Straight up, I gotta be honest with you – it’s a tough watch for us. The whole 16-day window is pretty flat, with only a tiny tease of something a bit bigger right at the back end. There’s a big ol’ gap of nothing from right now through to the morning of Saturday the 20th of September. The water temp is sitting at a pretty mild 64°, which is a touch warmer than usual for this time of year.
For the first week, from Saturday the 12th right through to Friday the 19th, we’re looking at absolute dribble. Swell heights are stuck on 0.3 ft. The wind tries to play nice with some offshore breezes on Tuesday the 15th, Wednesday the 16th, and Thursday the 17th, but with no waves to clean up, it doesn't matter. The combined energy is basically zero (2 to 9). There’s nothing to ride.
Sunday the 20th is where it gets interesting, but only for the brave. In the morning, we see a pulse of 3 ft from the SSW at a super short period of 4 seconds, with a combined energy of 41. The wind is a solid offshore from the WNW, so it’ll be clean. Still, it’s tiny and weak. Then, on Sunday afternoon, it jumps up. We get a 8 ft swell from the WSW with a period of 7 seconds. The combined energy hits a proper 499, so there’s some grunt behind it. That’s big for Maenporth, but 8 ft is expert territory only. The wind stays cross-off from the WNW, so the conditions will be alright, but that short period will make it tricky and lumpy.
After that, from Monday the 21st through to the end of the period on Sunday the 27th, it drops right back down to nothing again. We get a tiny 3 ft pulse from the SE on Saturday the 26th, but that’s accompanied by a fresh cross-shore wind, making it a complete write-off.
Honestly, the only thing that even gets a mention is that Sunday the 20th afternoon session. 8 ft is proper size for a sheltered spot like this, and with a cross-off wind, it could offer a few powerful, albeit messy, waves for the lads who know what they’re doing. But it’s a short-lived spike and the period is too short for anything really lined up. The rest of the window is a dead loss. It’s a quiet spell, but that’s Maenporth for you – when it goes flat, it can stay flat for a while.
Stay tuned, forecasts can always shuffle.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 21°C on Mon morning, min 17°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed night. Very mild (max 17°C on Tue morning, min 14°C on Wed morning). Mainly fresh winds. | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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) | S 15 | S 15 | S 14 | SW 13 | S 13 | S 13 | SW 12 | SW 12 | WSW 8 | S 11 | S 11 | S 11 | W 10 | W 11 | S 13 | W 6 | S 13 | S 13 | S 18 | S 15 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 4 | 4 | 7 | 3 | 3 | 6 | 6 | 115 | 2 | 2 | 2 | 0 | 0 | 3 | 0 | 3 | 3 | 6 | 4 | 161 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | off | off | off | off | off | cross-off | off | off | off | cross-off | cross-off | cross |
High Tide | 6:56PM5.44m | 7:14AM5.08m | 7:32PM5.37m | 7:47AM5.04m | 8:06PM5.20m | 8:21AM4.93m | 8:40PM4.93m | 8:56AM4.74m | 9:16PM4.59m | 9:34AM4.49m | 9:55PM4.23m | 10:19AM4.20m | 10:46PM3.87m | ||||||||
Low Tide | 1:12PM0.41m | 1:37AM0.36m | 1:49PM0.41m | 2:12AM0.50m | 2:24PM0.55m | 2:46AM0.73m | 2:59PM0.80m | 3:18AM1.02m | 3:33PM1.12m | 3:49AM1.35m | 4:08PM1.48m | 4:22AM1.68m | 4:47PM1.84m | ||||||||
 | |  |  | |  |  | | | | | | | | | | | | | |  | |
 | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — |
 | — | 7:40 | — | — | 7:38 | — | — | 7:37 | — | — | 7:35 | — | — | 7:32 | — | — | 7:30 | — | — | 7:28 | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 2 |
Temp °C | 18 | 19 | 18 | 18 | 18 | 19 | 21 | 20 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 17 | 17 | 17 |
Feels °C | 14 | 16 | 16 | 16 | 17 | 19 | 20 | 18 | 17 | 13 | 10 | 12 | 12 | 10 | 12 | 11 | 9 | 10 | 13 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | W 15 | W 14 | W 10 | W 10 | W 10 | W 10 | W 9 | W 9 | WSW 8 | S 11 | S 11 | W 8 | W 10 | W 11 | W 10 | W 10 | W 9 | W 10 | W 13 | W 13 | W 12 |
| kJ | 17 | 16 | 703 | 524 | 443 | 268 | 194 | 153 | 115 | 2 | 2 | 411 | 808 | 639 | 402 | 118 | 153 | 524 | 961 | 723 | 235 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 15 | S 14 | SW 13 | S 13 | S 13 | SW 12 | SW 12 | W 12 | — | — | S 11 | — | — | S 13 | — | S 13 | S 13 | S 12 | S 12 | S 16 |
| kJ | 4 | 4 | 4 | 7 | 3 | 3 | 6 | 6 | 11 | — | — | 2 | — | — | 3 | — | 3 | 3 | 3 | 3 | 5 |
Swell 3 Height (m) Direction Period (s) | S 15 | — | — | — | — | — | — | — | S 12 | — | — | — | — | — | — | — | — | — | S 18 | S 15 | S 12 |
| kJ | 4 | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | 6 | 4 | 3 |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | — | — | — | — | — | — | SW 3 | W 10 | W 8 | WNW 8 | NNW 4 | — | — | W 6 | W 7 | — | — | — | WSW 6 |
| kJ | 205 | 317 | — | — | — | — | — | — | 2 | 443 | 368 | 534 | 11 | — | — | 157 | 163 | — | — | — | 161 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 201 | 176 | 28 | 28 | 28 | 23 | 28 | 28 | 28 | 164 | 201 | 92 | 25 | 92 | 485 | 571 | 201 | 188 | 209 | 188 | 589 |
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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