Surf Forecasts:
Kennack Sands surf forecast from 21 Aug 2026:
- Most powerful swell: Monday 24 Aug, 4PM (local time) - 7.5ft (2.3m), 7s period, E swell with 569 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 2.3m 7s and forecast to arrive on Monday (Aug 24) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Friday (Aug 28) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Mon 24th Aug) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright, let’s talk about Kennack Sands. The next couple of weeks are a real bummer for waves. We’ve got a long gap of nothing worthwhile coming up, with mostly flat or messy, blown-out conditions for days on end. The water temp is hanging around 19°, which is a touch warmer than usual for this time of year, about 2° above normal—it feels nice but the surf doesn’t.
The first bit of hope shows up on Thursday, September 3rd, in the morning. We’re looking at a clean, 3ft groundswell from the SSW with a solid 9-second period, and the combined energy is a moderate 152. The wind is light offshore from the WNW, so those faces will be clean. But it’s only surfable, not great, and the afternoon gets ruined by a strong cross-onshore wind. For a sheltered spot like this, that SSW direction is about as good as it gets, so you might snag a couple fun ones before the wind messes it up.
After that, it flattens right out. Come Saturday, September 5th, it goes glassy in the afternoon, but with a tiny 0.7ft swell, it’s just a dead calm. Not a single wave worth paddling for.
If you’re a beginner and just want to get wet, the morning of September 3rd is your best bet, but it’s only average. For everyone else, this run is a total washout. It doesn’t stay this quiet forever, but for now, it’s a waiting game.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri morning. Very mild (max 18°C on Sat afternoon, min 14°C on Fri night). Winds increasing (light winds from the NNE on Fri night, fresh winds from the E by Sun night). | Days 4-6 Weather SummaryModerate rain (total 14mm), heaviest on Wed night. Warm (max 20°C on Wed afternoon, min 17°C on Mon morning). Winds increasing (light winds from the SSE on Tue night, near gales from the SSW by Wed night). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | SSW 13 | SSW 16 | SSW 16 | ENE 3 | E 5 | SSW 15 | SSW 14 | ESE 5 | ESE 6 | ESE 6 | E 7 | E 7 | E 7 | E 7 | SSW 8 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 17 | 25 | 24 | 2 | 31 | 42 | 40 | 44 | 69 | 320 | 569 | 349 | 203 | 72 | 61 | 128 | 316 | 172 | 97 | 57 | 15 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-on | cross-on | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | cross-off | cross-off | cross-off |
High Tide | 11:42AM3.40m | 00:25AM3.26m | 1:09PM3.29m | 1:52AM3.23m | 2:28PM3.38m | 3:01AM3.38m | 3:28PM3.62m | 3:53AM3.62m | 4:14PM3.91m | 4:34AM3.89m | 4:52PM4.21m | 5:10AM4.15m | 5:25PM4.49m | ||||||||
Low Tide | 6:05PM1.62m | 6:38AM1.72m | 7:29PM1.75m | 8:12AM1.74m | 9:05PM1.64m | 9:33AM1.53m | 10:08PM1.35m | 10:25AM1.22m | 10:53PM1.02m | 11:06AM0.90m | 11:30PM0.70m | 11:42AM0.61m | 00:05AM0.42m | ||||||||
 |  |  | | |  |  | | | |  |  |  | | |  | |  | | | | |
 | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — |
 | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 4 | 1 | 2 | 5 | 2 | 1 | — |
Temp °C | 17 | 17 | 15 | 16 | 18 | 17 | 17 | 18 | 17 | 17 | 18 | 19 | 19 | 19 | 19 | 19 | 20 | 19 | 18 | 17 | 17 |
Feels °C | 11 | 11 | 13 | 11 | 15 | 12 | 13 | 14 | 13 | 10 | 11 | 13 | 16 | 18 | 19 | 17 | 16 | 15 | 13 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | W 9 | SSW 13 | W 8 | W 9 | E 5 | E 5 | SSW 14 | SW 12 | SW 10 | SW 9 | SSW 13 | SW 9 | SW 8 | E 7 | SSW 8 | W 9 | W 8 | SSW 7 | W 8 | SSW 7 | SSW 7 |
| kJ | 185 | 17 | 69 | 45 | 31 | 13 | 40 | 35 | 34 | 14 | 17 | 12 | 35 | 72 | 61 | 56 | 32 | 172 | 149 | 57 | 15 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 16 | WNW 8 | NNW 6 | WSW 9 | W 9 | W 9 | SW 14 | SSW 14 | SSW 13 | SW 9 | SSW 13 | WNW 10 | SSW 9 | W 9 | — | SW 12 | W 8 | SSW 7 | S 12 | SW 12 |
| kJ | 17 | 25 | 22 | 7 | 26 | 14 | 14 | 47 | 38 | 18 | 3 | 17 | 35 | 52 | 61 | — | 6 | 42 | 97 | 3 | 5 |
Swell 3 Height (m) Direction Period (s) | S 16 | SW 16 | SSW 16 | NW 7 | WNW 6 | SSW 15 | NNW 4 | NNW 5 | W 8 | W 9 | W 9 | WNW 11 | SSW 13 | W 10 | SW 13 | SW 12 | — | SE 5 | ESE 4 | — | — |
| kJ | 5 | 10 | 24 | 12 | 14 | 42 | 2 | 2 | 1 | 7 | 6 | 12 | 17 | 70 | 7 | 6 | — | 6 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | N 3 | WNW 8 | — | ENE 3 | — | N 5 | E 5 | ESE 5 | ESE 6 | ESE 6 | E 7 | E 7 | E 7 | — | ESE 6 | SSW 6 | SSW 7 | — | — | W 8 | W 7 |
| kJ | 7 | 197 | — | 2 | — | 7 | 16 | 44 | 69 | 320 | 569 | 349 | 203 | — | 20 | 128 | 316 | — | — | 562 | 262 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 84 | 206 | 8 | 30 | 39 | 19 | 30 | 30 | 15 | 416 | 181 | 160 | 160 | 30 | 30 | 243 | 183 | 97 | 274 | 361 | 195 |
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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