Surf Forecasts:
Kennack Sands 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 Kennack Sands this week:
The most powerful waves expected at Kennack Sands 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 1.5m 7s period and expected on Tuesday (Aug 18) 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 Kennack Sands over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you. Looking out over the next couple of weeks, the surf scene is pretty much a flat, washed-out story. We've got a long stretch of nothing on the menu, so temper those expectations.
We're talking about Kennack Sands, a sheltered little spot that needs a good dose of southerly energy to wake up. Right now, and for the next week or so, it's gonna be tough. We're looking at tiny, weak waves – we're talking 0.3ft of dribble with a long-period south swell that just doesn't have any push behind it. The energy readings are pitiful, in the single digits to low twenties (e.g., 6, 7, 24), which is just about enough to make it look pretty but not surfable.
The water is warm, though, coming in at 67°, which is a good 4° warmer than usual for this time of year. That's a nice touch if you're just having a paddle, but it won't help the waves.
There is a slight bump late in the first week, on the 19th and 20th, where we might see 0.7ft of swell, with energy climbing into the low 20s. Still, that's a far cry from rideable for most. The wind is mostly cross-off, so the surface will be clean, but you're just staring at a flat ocean.
The real tease is on the morning of the 22nd. Glassy conditions are forecast with light easterly winds, and there's a whisper of a 0.7ft SSW groundswell. But it’s still tiny. Then the afternoon throws a curveball – a 1ft east windswell shows up with a short 5-second period. That's pure chop, not worth getting wet for. This spot is inconsistent at the best of times, and this is one of those blank runs that just reminds you how fickle it can be.
The following week doesn't offer any real hope either. We see a blip of 3ft cross-shore energy on the 23rd, but it's windswell with a 6-second period and winds are howling at 22 mph. That's not surf; that's a washing machine. After that, it's back to flatness with strong winds and rain. For the most part, the open water will be messy and blown out. Honestly, with the swell this weak and the wind this strong at times, the setup might look more interesting for a kite surfer than a paddle surfer.
So, the long and short of it: don't bother waxing up for the next couple of weeks. There are no good surf options in this 16-day window. It's a tough run, but this spot is known for it. It never stays this poor for long, and the forecasts can change. Keep an eye on the charts, and maybe we'll get something on the next cycle.
Rusty, out.
Short Range ForecastMostly dry. Warm (max 21°C on Fri morning, min 15°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Tue night. Warm (max 20°C on Mon afternoon, min 14°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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 13 | S 13 | S 13 | W 8 | S 12 | S 20 | S 12 | S 18 | S 18 | S 18 | S 18 | S 19 | W 7 | W 7 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
Wave Graph | |||||||||||||||||||||
3 | 3 | 3 | 0 | 3 | 7 | 3 | 7 | 6 | 6 | 6 | 7 | 0 | 0 | 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 | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | off | off | off | off |
High Tide | 6:46PM5.14m | 7:08AM4.81m | 7:27PM5.07m | 7:48AM4.72m | 8:06PM4.88m | 8:26AM4.54m | 8:45PM4.58m | 9:06AM4.28m | 9:25PM4.22m | 9:47AM3.98m | 10:10PM3.84m | 10:36AM3.66m | 11:06PM3.49m | ||||||||
Low Tide | 1:09PM-0.10m | 1:35AM-0.21m | 1:49PM-0.07m | 2:14AM-0.09m | 2:28PM0.09m | 2:52AM0.15m | 3:06PM0.34m | 3:28AM0.47m | 3:44PM0.66m | 4:05AM0.83m | 4:23PM1.01m | 4:44AM1.18m | 5:07PM1.34m | ||||||||
6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | |
— | 8:40 | — | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 3 | — | — | — | — | — |
Temp °C | 21 | 21 | 18 | 21 | 20 | 16 | 19 | 19 | 19 | 19 | 20 | 20 | 19 | 18 | 18 | 18 | 19 | 18 | 18 | 18 | 16 |
Feels °C | 20 | 19 | 16 | 17 | 15 | 14 | 17 | 15 | 18 | 18 | 18 | 18 | 14 | 13 | 15 | 13 | 14 | 15 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 9 | S 18 | S 16 | SW 17 | SW 17 | SSW 17 | SSW 16 | W 8 | WNW 7 | WNW 7 | W 9 | W 8 |
160 | 155 | 191 | 127 | 120 | 72 | 27 | 25 | 15 | 42 | 6 | 5 | 11 | 11 | 29 | 24 | 51 | 164 | 157 | 38 | 44 | |
Swell 2 Height (m) Direction Period (s) | S 13 | S 13 | S 13 | WSW 8 | S 12 | S 12 | WSW 8 | — | — | W 7 | — | S 19 | — | — | — | — | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
3 | 3 | 3 | 11 | 3 | 3 | 12 | — | — | 8 | — | 7 | — | — | — | — | 24 | 22 | 21 | 20 | 18 | |
Swell 3 Height (m) Direction Period (s) | S 13 | S 10 | S 13 | — | — | S 20 | S 12 | S 18 | S 18 | S 18 | — | — | — | — | — | — | — | — | — | — | WNW 8 |
3 | 2 | 3 | — | — | 7 | 3 | 7 | 6 | 6 | — | — | — | — | — | — | — | — | — | — | 6 | |
Wind waves Height (m) Direction Period (s) | — | — | — | N 3 | N 3 | N 4 | — | — | NW 4 | WNW 4 | W 8 | W 6 | W 7 | W 7 | WNW 7 | WNW 6 | WNW 7 | — | — | NW 7 | N 3 |
— | — | — | 5 | 8 | 9 | — | — | 4 | 6 | 149 | 132 | 208 | 176 | 161 | 176 | 158 | — | — | 77 | 5 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 21 | 61 | 21 | 226 | 250 | 194 | 182 | 425 | 279 | 427 | 615 | 181 | 180 | 187 | 218 | 21 | 184 | 134 | 21 | 21 | 8 |
Best forecast wave conditions in South Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











