Surf Forecasts:
Kennack Sands surf forecast from 10 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 1PM (local time) - 3.5ft (1.1m), 6s period, E swell with 74 kJ wave energy.
Best Forecast Surf Conditions for Kennack Sands this week:
The most powerful waves expected at Kennack Sands in the next 16 days are 1.1m 6s and forecast to arrive on Wednesday (Aug 12) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 11s period and expected on Thursday (Aug 13) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 12th Aug) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright, this is Rusty, and I'm looking at the outlook for Kennack Sands.
To be straight with you, this is looking like a pretty flat spell for the next couple of weeks. The whole 16-day window is a real struggle, and we've got a massive gap with no good surf on offer. The first real chance of anything rideable doesn't show up until Saturday the 22nd of August afternoon, when a tiny bump of swell shows up, but it's still not good enough to get excited about.
The real story starts on Sunday the 23rd of August. The morning will see a small, short-period swell from the east pushing in at about 5ft. The swell energy is moderate, coming in at 253, but the period is only 6 seconds so the waves will be a bit crumbly and lack punch. The wind is a light offshore from the NNW though, so it’ll be clean. This is the closest thing to a standout, but with the south-westerly optimum direction for this sheltered spot, an east swell with a short period is far from ideal. It's inconsistent by nature here, so those clean but weak waves won't be rolling through often. The water temp is sitting at 66°F, which is a touch warmer than normal for the time of year.
After that, things flatten out again quickly. Monday the 24th and Tuesday the 25th offer a bit more swell direction from the south-southwest which is better, but the heights drop and the wind stays messy. It's just not going to come together. For the whole 16 days, the surf really just isn't on. It’s a quiet period for the area, so a blank run like this is more normal than a surprise swell.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon afternoon, min 18°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu morning, min 16°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | WNW 6 | S 13 | S 13 | ESE 3 | E 4 | E 5 | E 6 | E 5 | E 5 | E 5 | E 6 | S 11 | S 13 | S 13 | S 13 | S 12 | S 12 | S 20 | S 19 | S 18 | NNW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 3 | 3 | 3 | 15 | 47 | 72 | 45 | 14 | 8 | 10 | 2 | 3 | 3 | 3 | 3 | 3 | 7 | 7 | 7 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off |
High Tide | 3:32PM4.23m | 4:03AM4.21m | 4:29PM4.57m | 4:56AM4.47m | 5:19PM4.87m | 5:44AM4.68m | 6:04PM5.07m | 6:27AM4.80m | 6:46PM5.14m | 7:08AM4.81m | 7:27PM5.07m | 7:48AM4.72m | 8:06PM4.88m | ||||||||
Low Tide | 10:26PM0.64m | 10:50AM0.55m | 11:22PM0.27m | 11:41AM0.23m | 00:10AM-0.02m | 12:27PM0.00m | 00:54AM-0.19m | 1:09PM-0.10m | 1:35AM-0.21m | 1:49PM-0.07m | 2:14AM-0.09m | 2:28PM0.09m | 2:52AM0.15m | ||||||||
 | |  | | | | | | | | | | | |  | | | |  |  | | |
 | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 19 | 19 | 19 | 21 | 20 | 21 | 22 | 24 | 24 | 20 | 20 | 20 | 17 | 20 | 20 | 16 | 20 | 21 | 17 |
Feels °C | 20 | 21 | 15 | 17 | 16 | 17 | 16 | 21 | 20 | 22 | 23 | 20 | 17 | 15 | 14 | 18 | 16 | 13 | 20 | 20 | 12 |
Swell 1 Height (m) Direction Period (s) | WNW 6 | W 8 | W 8 | WNW 8 | WNW 7 | W 11 | WSW 10 | E 5 | WSW 9 | W 11 | W 10 | W 10 | W 9 | S 13 | W 8 | W 8 | WNW 8 | WNW 8 | W 7 | W 7 | W 7 |
| kJ | 28 | 35 | 48 | 20 | 18 | 119 | 131 | 45 | 185 | 332 | 290 | 183 | 192 | 3 | 169 | 186 | 163 | 107 | 54 | 34 | 9 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | SW 7 | SW 7 | SW 6 | W 9 | SW 6 | SW 12 | WSW 9 | E 5 | E 5 | E 6 | E 5 | — | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | WSW 8 | WNW 7 |
| kJ | 25 | 15 | 7 | 6 | 7 | 1 | 6 | 144 | 14 | 8 | 10 | 2 | — | 3 | 3 | 3 | 3 | 3 | 3 | 11 | 4 |
Swell 3 Height (m) Direction Period (s) | SW 6 | S 13 | S 13 | W 10 | SW 6 | SW 12 | SW 6 | SW 6 | — | — | S 11 | S 11 | S 13 | — | — | — | — | S 20 | S 19 | S 18 | — |
| kJ | 14 | 3 | 3 | 8 | 1 | 6 | 1 | 1 | — | — | 2 | 2 | 3 | — | — | — | — | 7 | 7 | 7 | — |
Wind waves Height (m) Direction Period (s) | — | WNW 5 | N 2 | ESE 3 | E 4 | E 5 | E 6 | — | — | — | WNW 3 | WNW 3 | WNW 3 | W 9 | WNW 8 | — | — | — | NE 3 | NNW 3 | NNW 4 |
| kJ | — | 17 | 1 | 3 | 15 | 47 | 72 | — | — | — | 1 | 2 | 7 | 225 | 180 | — | — | — | 1 | 7 | 16 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 8 | 19 | 410 | 189 | 15 | 24 | 8 | 8 | 16 | 189 | 21 | 36 | 226 | 21 | 21 | 21 | 66 | 15 | 19 | 402 |
Best forecast wave conditions in South Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Kennack Sands Surf forecast
The above surf forecast table for Kennack Sands provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kennack Sands can be found by selecting the local surf guide option on the grey menu. Our Kennack Sands 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 (Kennack Sands) 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 Kennack Sands 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.
Kennack Sands is 9 km (6 miles) from The Lizard. If you plan a holiday in South Cornwall, look for hotels and other accommodation in The Lizard. The Lizard has rooms for a wide range of budgets as well as car hire and transport links.
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