Surf Forecasts:
Kennack Sands surf forecast from 8 Sep 2026:
- Most powerful swell: Friday 11 Sep, 4PM (local time) - 0.5ft (0.1m), 16s period, S swell with 5 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 0.1m 16s and forecast to arrive on Friday (Sep 11) at 4PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Thursday (Sep 10) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Fri 11th Sep) | 0.5ft (0.1m) 16s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s cooking for Kennack Sands over the next couple of weeks.
Honestly, mate, it’s a bit of a flat spell. We’re looking at a long stretch with hardly any surf worth paddling out for. The first real whiff of something rideable doesn’t show up until the afternoon of Friday the 11th, and even then, it’s tiny – just a 0.3ft little ripple out of the south with a long 16-second period, carrying only 5 units of energy. That’s barely a knee-high dribble, but the wind is offshore from the NNW, so it’ll be clean. Before that, from Tuesday the 8th through to Friday morning, the charts are basically empty. A lot of poor surf conditions and zero scores.
The water is sitting at about 64°, which is a touch warmer than normal for this time of year, so you won’t need a thick suit, but you will need patience.
Saturday the 12th and Sunday the 13th are more of the same – tiny south swells, cross or cross-offshore winds, and combined energy barely cracking single digits. Not worth getting the board wet, really.
The most hopeful window comes right at the end of the forecast. Saturday the 19th and Sunday the 20th see a little 2ft easterly swell pushing in, with combined energy around 20 to 24. That’s still small, but on Saturday afternoon we get glassy conditions with a light SW wind, and Sunday afternoon is glassy too. For a sheltered spot like Kennack, that’s about as clean as it gets. The period is short, around 4 to 5 seconds, so it’ll be a bit crumbly, but for a beginner-friendly break that’s inconsistent, this is your best bet. Expect some crowds because it’s a popular spot when it’s clean.
Don’t hold your breath for the rest of the window – Monday the 21st has a few glassy moments but the swell drops back to 1ft, and after that it fades away again. The long-range stuff is too far out to trust.
So, to sum it up: the standout is the weekend of the 19th and 20th of September. Small, clean, glassy, and about as good as it gets for this stretch.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue morning. Very mild (max 18°C on Thu night, min 14°C on Tue night). Winds decreasing (fresh winds from the NW on Tue morning, light winds from the WSW by Wed night). | Days 4-6 Weather SummarySome drizzle, heaviest during Sun morning. Warm (max 20°C on Sun night, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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) | WNW 9 | SSW 10 | W 9 | W 9 | WNW 9 | WNW 9 | WSW 5 | WSW 7 | WSW 10 | W 9 | S 16 | W 8 | S 15 | S 15 | S 14 | W 10 | W 10 | S 13 | S 12 | S 12 | S 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 4 | 4 | 4 | 0 | 0 | 3 | 3 | 3 | 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 | cross | cross | cross-off | cross-off | off | off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 3:28PM4.21m | 3:59AM4.16m | 4:20PM4.57m | 4:46AM4.47m | 5:04PM4.86m | 5:27AM4.71m | 5:44PM5.04m | 6:05AM4.85m | 6:22PM5.09m | 6:41AM4.89m | 6:58PM5.01m | 7:16AM4.81m | 7:33PM4.82m | ||||||||
Low Tide | 10:17PM0.61m | 10:38AM0.56m | 11:08PM0.24m | 11:25AM0.23m | 11:51PM-0.02m | 12:07PM0.01m | 00:31AM-0.16m | 12:46PM-0.08m | 1:08AM-0.15m | 1:23PM-0.04m | 1:43AM-0.01m | 1:58PM0.11m | 2:17AM0.23m | ||||||||
 |  |  | |  |  | |  |  | | | | |  |  | | | | | | | |
 | 6:45 | — | — | 6:46 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — |
 | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:38 | — | — | 7:37 | — |
mm | 3 | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 16 | 14 | 16 | 17 | 18 | 18 | 19 | 20 | 20 | 20 | 19 |
Feels °C | 8 | 8 | 10 | 12 | 13 | 14 | 12 | 11 | 15 | 15 | 13 | 12 | 12 | 13 | 15 | 17 | 18 | 21 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | W 9 | W 9 | W 9 | WNW 9 | WNW 9 | WSW 8 | W 11 | WSW 10 | W 9 | W 9 | W 8 | W 9 | W 10 | S 14 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 |
| kJ | 209 | 61 | 595 | 445 | 222 | 101 | 19 | 9 | 920 | 430 | 299 | 187 | 247 | 127 | 4 | 546 | 363 | 251 | 160 | 143 | 129 |
Swell 2 Height (m) Direction Period (s) | SW 11 | SSW 10 | — | WSW 8 | WSW 8 | WSW 8 | WNW 8 | — | — | — | S 16 | W 18 | W 14 | S 15 | — | SW 13 | SW 13 | S 13 | S 12 | S 12 | W 12 |
| kJ | 5 | 11 | — | 111 | 84 | 54 | 22 | — | — | — | 5 | 6 | 35 | 4 | — | 7 | 7 | 3 | 3 | 3 | 69 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 15 | N 6 | W 12 | — | — | — | — | W 18 | S 15 | S 15 | — | — | — | — | — | — | S 12 |
| kJ | — | — | — | — | 4 | 1 | 11 | — | — | — | — | 6 | 4 | 4 | — | — | — | — | — | — | 3 |
Wind waves Height (m) Direction Period (s) | WNW 9 | W 9 | W 9 | — | — | — | WSW 5 | WSW 7 | — | — | — | — | — | W 7 | W 10 | — | — | — | — | — | — |
| kJ | 446 | 635 | 724 | — | — | — | 48 | 349 | — | — | — | — | — | 212 | 821 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 186 | 187 | 187 | 16 | 16 | 29 | 182 | 163 | 64 | 16 | 21 | 8 | 30 | 30 | 187 | 29 | 47 | 29 | 29 | 30 | 29 |
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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