Surf Forecasts:
Kennack Sands surf forecast from 15 Sep 2026:
- Most powerful swell: Tuesday 22 Sep, 1PM (local time) - 1.5ft (0.5m), 4s period, ESE swell with 8 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 0.5m 4s and forecast to arrive on Tuesday (Sep 22) 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 2.5m 12s period and expected on Friday (Sep 18) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Tue 22nd Sep) | 1.5ft (0.5m) 4s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright, let's be honest with you. If you're looking at Kennack Sands for the next 16 days, you're staring down a whole lotta flat. The forecast is a proper drought, so don't go waxing up just yet.
We've got a long, quiet stretch ahead. The whole first week and into the second is mostly a write-off, with only tiny little bumps showing on a few days. The water's running about 64°, which feels a touch warmer than usual for this time of year, but that's the only thing worth noting.
As for the first real movement, Tuesday the 15th of September sees a tiny 0.3ft S swell push in with an 11-second period. The combined wave energy is next to nothing (4). The wind is fresh offshore from the WNW, so it'll be glassy and clean, but there's just no power to surf. That's about as good as it gets, and it's still a no-go.
That slim chance fades fast. From Wednesday the 16th right through to Monday the 21st, we're looking at days of zero swell in the mornings. The odd 0.3ft spike pops up, like on Friday the 18th with a long-period 18-second S swell, but the energy is still pathetic (9). Conditions are clean with cross-off breezes, but you'd be wasting your time.
The pattern doesn't change as we head deeper in. A little more energy tries to show up around Tuesday the 22nd of September, with a 2ft ESE swell, but the period is a shocking 3 seconds – that's just wind slop. The wind swings onshore from the east, making it choppy and messy. That's a kite-surfing setup, not a paddle session.
Later on, Saturday the 26th of September offers the biggest swell of the whole forecast, a 3ft E swell. The period is still short at 5 seconds, and the combined energy is moderate at best (37 to 39). With onshore winds making it lumpy, it's not going to be pretty. Honestly, nothing in this 16-day window is worth getting stoked about. It's a proper flat spell, so maybe get the fins sorted.
Stay patient. Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Very mild (max 17°C on Tue morning, min 14°C on Wed morning). Mainly fresh winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri afternoon. Very mild (max 18°C on Sun afternoon, min 15°C on Fri afternoon). Winds decreasing (fresh winds from the W on Fri afternoon, light winds from the NNW by Sun night). | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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 11 | S 11 | S 11 | W 10 | W 11 | S 13 | W 8 | S 13 | S 13 | S 18 | S 17 | S 16 | S 16 | S 15 | S 11 | S 11 | S 11 | S 13 | S 13 | W 12 | S 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 2 | 2 | 0 | 0 | 3 | 0 | 3 | 3 | 6 | 6 | 5 | 5 | 4 | 2 | 2 | 2 | 3 | 3 | 0 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off |
High Tide | 8:08PM4.53m | 8:25AM4.38m | 8:44PM4.18m | 9:02AM4.05m | 9:23PM3.81m | 9:44AM3.70m | 10:12PM3.44m | 10:43AM3.38m | 11:31PM3.15m | 12:25PM3.20m | 1:22AM3.11m | 2:01PM3.31m | 2:38AM3.30m | ||||||||
Low Tide | 2:33PM0.36m | 2:50AM0.54m | 3:07PM0.67m | 3:24AM0.88m | 3:44PM1.01m | 4:01AM1.22m | 4:27PM1.34m | 4:48AM1.53m | 5:23PM1.63m | 5:52AM1.76m | 6:45PM1.78m | 7:24AM1.80m | 8:24PM1.67m | ||||||||
 | |  |  |  |  |  | |  | |  |  | | | | | | | | | | |
 | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — | 7:03 | — | — |
 | — | 7:35 | — | — | 7:32 | — | — | 7:30 | — | — | 7:28 | — | — | 7:25 | — | — | 7:23 | — | — | 7:22 | — |
mm | — | — | — | — | — | 2 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 15 | 15 | 16 | 16 | 16 | 16 | 15 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 17 | 18 | 19 | 18 |
Feels °C | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 9 | 9 | 11 | 12 | 13 | 13 | 14 | 16 | 16 | 17 | 18 | 19 | 20 | 17 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | W 9 | W 10 | W 11 | S 13 | W 10 | S 13 | S 13 | W 13 | W 13 | W 12 | S 16 | S 15 | W 10 | W 10 | W 10 | W 10 | W 12 | W 12 | W 10 |
| kJ | 2 | 2 | 676 | 1141 | 907 | 3 | 123 | 3 | 3 | 1667 | 1288 | 232 | 5 | 4 | 492 | 424 | 354 | 279 | 362 | 327 | 214 |
Swell 2 Height (m) Direction Period (s) | S 11 | — | S 11 | — | — | — | — | — | — | S 12 | S 17 | S 16 | S 12 | S 11 | SW 14 | SW 14 | SW 14 | W 13 | S 13 | SW 13 | S 13 |
| kJ | 2 | — | 2 | — | — | — | — | — | — | 3 | 6 | 5 | 3 | 2 | 8 | 8 | 8 | 92 | 3 | 7 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 18 | S 12 | S 12 | — | — | S 11 | S 11 | S 11 | S 13 | — | — | S 6 |
| kJ | — | — | — | — | — | — | — | — | — | 6 | 3 | 3 | — | — | 2 | 2 | 2 | 3 | — | — | 1 |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | — | — | — | W 10 | W 8 | W 9 | W 10 | — | — | W 7 | W 11 | W 10 | — | — | — | — | — | — | ESE 2 |
| kJ | 432 | 443 | — | — | — | 650 | 582 | 724 | 1138 | — | — | 340 | 741 | 635 | — | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 187 | 187 | 71 | 21 | 187 | 182 | 476 | 523 | 186 | 187 | 195 | 415 | 195 | 195 | 163 | 21 | 21 | 8 | 8 | 19 | 8 |
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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