Surf Forecasts:
Kennack Sands surf forecast from 6 Aug 2026:
- Most powerful swell: Tuesday 11 Aug, 10PM (local time) - 1.5ft (0.4m), 6s period, E swell with 9 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 0.4m 6s and forecast to arrive on Tuesday (Aug 11) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 10s 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 | 10PM (Tue 11th Aug) | 1.5ft (0.4m) 6s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's break down what Kennack Sands has in store for us over the next couple of weeks. Right off the bat, it’s a quiet picture for a long stretch, so we’re gonna have to be patient.
Right now, the water is sitting at a warm 67°, which is about 4° warmer than usual for this time of year—no need for a thick suit, that’s for sure. But for waves? From Thursday the 6th all the way through to Monday the 17th of August, it’s practically flat. We’re talking a massive gap with nothing but tiny dribbles or total flatness. The combined swell energy barely registers, with most readings at zero or single-digit numbers. You’ll see the odd little 0.3ft to 1.0ft bump, but with periods all over the place and no real power, it’s not worth paddling out for.
The pattern finally shifts around Tuesday the 18th of August. We start to see a little life with a 3ft swell from the east, period around 5 seconds, and the energy climbs into the double digits. The wind is light and variable—a little onshore or cross, so not perfect, but it’s something. By Wednesday the 19th and Thursday the 20th, the swell pushes up to 4ft to 4ft from the east-southeast, with periods still short at 6 seconds. The combined energy is moderate, hitting triple-digit numbers. The wind gets fresh, mostly cross-offshore, which keeps things rideable but a bit lumpy at times.
Friday the 21st of August actually shapes up as the best we’ve got on offer. Morning sees a 3ft east swell with a 7-second period, energy solid, and clean offshore winds from the west-northwest at 19 mph. That offshore flow will hold through the afternoon, even if the wind picks up a touch. For Kennack Sands, which is a sheltered beginner spot that’s inconsistent at the best of times, this is as good as it gets in this forecast. The waves won’t be big, but they’ll be clean and rideable for a beginner or someone on a longboard. Don’t expect a crowd—it’s usually a quiet spot anyway.
Overall, the first two weeks are a write-off for surf. The last few days offer a glimmer of hope, but this isn’t a standout period. Keep your eyes on the charts; forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sun morning, min 15°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Mon afternoon, min 18°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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) | SSW 12 | W 10 | W 9 | W 9 | W 9 | E 3 | S 13 | ESE 3 | E 4 | ESE 4 | E 4 | WNW 8 | W 8 | S 13 | W 8 | ESE 3 | E 5 | E 5 | E 6 | E 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 14 | 0 | 0 | 0 | 0 | 1 | 3 | 2 | 8 | 3 | 1 | 0 | 0 | 3 | 0 | 4 | 8 | 4 | 7 | 2 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | glassy | cross-off | cross-off | cross-on | on | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-on | cross-on | cross-off | off | cross-off | cross-off |
High Tide | 11:06PM3.97m | 11:45AM3.82m | 00:23AM3.79m | 1:06PM3.78m | 1:47AM3.79m | 2:25PM3.94m | 3:01AM3.96m | 3:32PM4.23m | 4:03AM4.21m | 4:29PM4.57m | 4:56AM4.47m | 5:19PM4.87m | ||||||||
Low Tide | 5:20PM1.01m | 5:54AM1.06m | 6:27PM1.18m | 7:07AM1.20m | 7:52PM1.21m | 8:33AM1.15m | 9:17PM1.00m | 9:50AM0.90m | 10:26PM0.64m | 10:50AM0.55m | 11:22PM0.27m | 11:41AM0.23m | 00:10AM-0.02m | |||||||
 |  | | |  |  | | | | | | | | | | | | | | | |
 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — |
 | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:50 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 16 | 17 | 18 | 16 | 18 | 20 | 19 | 22 | 24 | 19 | 23 | 25 | 22 | 20 | 20 | 20 | 22 | 22 | 20 |
Feels °C | 14 | 14 | 15 | 15 | 13 | 16 | 18 | 17 | 20 | 21 | 16 | 22 | 23 | 19 | 18 | 18 | 20 | 19 | 18 | 19 |
Swell 1 Height (m) Direction Period (s) | W 10 | WNW 5 | W 9 | W 9 | W 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | W 8 | WNW 8 | W 8 | WNW 8 | WSW 11 | W 10 | WSW 9 | WSW 9 |
| kJ | 17 | 10 | 15 | 15 | 15 | 31 | 31 | 29 | 26 | 26 | 26 | 40 | 35 | 51 | 31 | 19 | 123 | 231 | 206 | 208 |
Swell 2 Height (m) Direction Period (s) | SSW 6 | W 10 | WNW 5 | WNW 5 | WNW 5 | NW 5 | WSW 7 | WSW 7 | ESE 4 | ESE 4 | SW 6 | SW 6 | WNW 5 | SW 7 | SW 6 | W 9 | E 5 | E 5 | E 6 | E 5 |
| kJ | 3 | 17 | 5 | 5 | 3 | 1 | 5 | 4 | 5 | 3 | 10 | 10 | 5 | 7 | 6 | 7 | 8 | 4 | 7 | 2 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SW 6 | SW 12 | SW 12 | SW 11 | SW 7 | S 13 | SW 12 | WSW 7 | SW 7 | E 4 | — | SW 7 | S 13 | W 10 | WSW 6 | WNW 7 | SW 12 | — | — |
| kJ | 14 | 1 | 6 | 6 | 5 | 2 | 3 | 6 | 4 | 11 | 1 | — | 7 | 3 | 8 | 4 | 10 | 6 | — | — |
Wind waves Height (m) Direction Period (s) | WNW 6 | — | — | W 5 | — | E 3 | ESE 3 | ESE 3 | E 4 | NW 3 | NW 3 | — | NW 5 | NW 4 | — | ESE 3 | — | — | WSW 2 | — |
| kJ | 33 | — | — | 2 | — | 1 | 2 | 2 | 8 | 2 | 2 | — | 5 | 5 | — | 4 | — | — | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 438 | 276 | 424 | 415 | 189 | 186 | 39 | 19 | 427 | 36 | 19 | 24 | 36 | 15 | 39 | 182 | 8 | 36 | 17 | 16 |
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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