Surf Forecasts:
Kennack Sands surf forecast from 25 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 1PM (local time) - 4.5ft (1.3m), 7s period, SSW swell with 134 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 1.3m 7s and forecast to arrive on Sunday (Aug 30) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Tuesday (Sep 01) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Sun 30th Aug) | 4.5ft (1.3m) 7s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
G'day, it's Rusty here.
I’ve had a good look at the charts for the next couple of weeks, and I’ve got to be straight with you – it’s a pretty grim picture for Kennack Sands. This is a sheltered spot that needs a good SSW swell to get going, but the wind and swell just aren’t lining up. The water is sitting at 65°F, which is a touch warmer than we’d normally expect for this time of year, but that’s where the good news ends.
We’re looking at a long, dry spell right through the end of August and into the first week of September. The wave energy is basically non-existent, with most days showing combined energy values of zero. There’s a tiny bit of life on the morning of Tuesday the 25th with a weak 6ft east swell, but it’s short-period at 7 seconds and a fresh 22 mph cross-shore wind is going to leave it a lumpy, choppy mess. That’s about as good as it gets for a while, and it’s not good.
The whole of the rest of the first week is a write-off. We’ve got a few small pulses of swell, like a 4ft SW swell on the morning of Thursday the 27th (128 energy – moderate), but it’s paired with a 16 mph cross-shore wind, so it’ll be a bumpy cross-chop. The swell is too weak and the wind is too strong. There’s a gap of several days with no real surf to speak of from the 28th right through to the 1st of September.
Things get a little interesting around the 9th of September. The Wednesday morning shows a 5ft south swell, and while it’s short-period at 5 seconds, the wind is a clean offshore from the west at 19 mph. The combined energy is moderate (109). This is the only window that looks even remotely rideable, but the swell is still pretty weak and the period is short, so it’ll be a bit fat and slow. If you’re desperate, that’s your best bet, but don’t expect much.
Overall, this is a tough run. Kennack is a beginner-friendly spot when it’s on, but it’s inconsistent at the best of times, and this forecast is a real blank. Hang in there, things can change fast.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Wed night. Very mild (max 19°C on Tue afternoon, min 17°C on Tue morning). Winds decreasing (fresh winds from the ENE on Tue morning, light winds from the SSE by Tue night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Fri night. Very mild (max 19°C on Fri morning, min 15°C on Sun night). Winds increasing (light winds from the WNW on Fri morning, strong winds from the W by Sun night). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | E 7 | E 6 | E 6 | SSE 4 | SSW 7 | E 5 | SW 6 | ESE 5 | SSW 7 | SW 8 | SSW 7 | WSW 6 | WSW 7 | WSW 8 | W 9 | SSW 6 | WSW 7 | W 8 | W 8 | W 8 | S 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 340 | 109 | 24 | 5 | 10 | 46 | 116 | 4 | 101 | 0 | 132 | 0 | 0 | 0 | 0 | 64 | 0 | 0 | 0 | 0 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | on | cross-on | cross | cross | cross-on | cross-on | cross-off | cross | cross-off | cross-off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:14PM3.91m | 4:34AM3.89m | 4:52PM4.21m | 5:10AM4.15m | 5:25PM4.49m | 5:42AM4.38m | 5:57PM4.71m | 6:13AM4.57m | 6:28PM4.87m | 6:45AM4.70m | 7:00PM4.94m | 7:18AM4.75m | 7:34PM4.92m | ||||||||
Low Tide | 10:25AM1.22m | 10:53PM1.02m | 11:06AM0.90m | 11:30PM0.70m | 11:42AM0.61m | 00:05AM0.42m | 12:16PM0.37m | 00:39AM0.21m | 12:51PM0.20m | 1:13AM0.08m | 1:26PM0.12m | 1:48AM0.06m | 2:01PM0.14m | 2:23AM0.14m | |||||||
 |  |  | | |  | | | | | | |  | |  | |  | | | |  | |
 | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — |
 | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — |
mm | 1 | — | — | — | — | 10 | — | — | — | — | — | 5 | — | — | — | — | 1 | — | — | 1 | — |
Temp °C | 18 | 19 | 18 | 18 | 19 | 18 | 18 | 19 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 18 | 17 | 17 | 17 | 17 |
Feels °C | 14 | 17 | 18 | 17 | 18 | 15 | 14 | 16 | 16 | 18 | 14 | 15 | 14 | 13 | 14 | 13 | 12 | 11 | 10 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | E 5 | WNW 10 | SSW 7 | SW 8 | SSW 7 | SW 11 | — | — | W 9 | W 9 | — | — | W 8 | — | S 18 |
| kJ | 74 | 94 | 81 | 49 | 31 | 28 | 12 | 32 | 101 | 244 | 132 | 5 | — | — | 1032 | 471 | — | — | 732 | — | 6 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SSW 8 | E 6 | SW 7 | SSW 7 | SSW 6 | W 10 | ESE 5 | WSW 7 | W 9 | W 8 | — | — | — | — | — | — | — | — | — | — |
| kJ | 18 | 47 | 24 | 14 | 10 | 14 | 8 | 4 | 77 | 41 | 51 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 13 | SSW 8 | E 5 | E 5 | SW 12 | SW 12 | S 12 | W 9 | — | S 11 | — | — | — | — | — | — | — | — | — | — |
| kJ | 7 | 7 | 44 | 5 | 2 | 6 | 6 | 3 | 44 | — | 3 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 7 | E 6 | SSE 3 | SSE 4 | SSE 4 | E 5 | SW 6 | SW 7 | — | — | — | WSW 6 | WSW 7 | WSW 8 | — | SSW 6 | WSW 7 | W 8 | W 8 | W 8 | WSW 8 |
| kJ | 340 | 109 | 3 | 5 | 5 | 46 | 116 | 235 | — | — | — | 197 | 498 | 576 | — | 64 | 424 | 1298 | 877 | 593 | 621 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 44 | 30 | 30 | 31 | 106 | 408 | 218 | 30 | 29 | 30 | 64 | 181 | 218 | 195 | 30 | 29 | 236 | 709 | 529 | 476 | 182 |
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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