Surf Forecasts:
Kennack Sands surf forecast from 27 Aug 2026:
- Most powerful swell: Saturday 29 Aug, 4AM (local time) - 5ft (1.6m), 6s period, SW swell with 184 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 1.6m 6s and forecast to arrive on Saturday (Aug 29) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Saturday (Aug 29) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Sat 29th Aug) | 5ft (1.6m) 6s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright, let me tell ya, I've been staring at the charts for Kennack Sands and, honestly, it's a tough one. The whole sixteen-day window is a bit of a flat spell. There's no real swell to speak of for the foreseeable future. We're looking at a long stretch of hardly any surfable waves, so don't get your hopes up for anything decent.
Looking at the overall pattern, the best we get is a bit of tiny, weak swell. On Thursday afternoon, August 27th, we might see a small bump of 3ft out of the SSW, with a short period of just 6 seconds. The energy is really weak, only measuring about 73 (combined energy). The main problem is the wind – a solid 12 mph cross-shore from the SW, making it choppy and messy. It's not worth paddling out for.
Then we hit a massive gap. From Friday, August 28th all the way through to Thursday, September 10th, it's basically flat. There are a few days with a tiny 0.7ft to 2ft wave, but it's either blown out or just too weak to ride. The energy readings are pitiful, often below 100, sometimes as low as 6. It's a real desert.
The only glimmer, and I mean a very faint glimmer, comes near the very end. On Thursday afternoon, September 10th, we could see up to 3ft out of the south with a period of 5 seconds. The wind finally turns offshore from the NNE, so the surface might be clean. The energy is still weak though, at just 28 (combined energy). It's a wave for a longboard, and it's not going to be much.
The water temperature at Kennack Sands is about 65°, which is "a touch warmer than normal" for this time of year, so at least the wait will be comfortable.
To be brutally honest, there's nothing here that stands out. The best wave of the entire forecast is that tiny 3ft cleanish wave on the 10th. If you're desperate, you could take a log out for a few knee-high wobbles, but don't expect much. The entire run is so poor, it's more of a time to clean the wax off your board than to use it. This kind of blank run is pretty normal for this area when it goes quiet.
-Rusty
Short Range ForecastModerate rain (total 14mm), heaviest on Fri night. Very mild (max 19°C on Sun morning, min 17°C on Thu night). Winds increasing (light winds from the WSW on Thu night, near gales from the SW by Sat morning). | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Sun afternoon. Very mild (max 18°C on Tue afternoon, min 16°C on Sun night). Winds decreasing (strong winds from the WSW on Sun night, light winds from the WNW by Tue night). | |||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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 6 | E 5 | WSW 6 | WSW 6 | S 11 | SW 7 | WSW 10 | WSW 9 | S 7 | WSW 9 | WSW 9 | WSW 10 | SSW 7 | SSW 6 | S 18 | W 9 | S 11 | SSW 16 | SSW 15 | SSW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 60 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 35 | 0 | 0 | 0 | 34 | 12 | 6 | 0 | 2 | 25 | 23 | 21 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 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 | 7:53AM4.71m | 8:11PM4.78m | 8:31AM4.57m | 8:52PM4.54m | |||||||
Low Tide | 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 | 2:39PM0.26m | 3:01AM0.32m | 3:19PM0.46m | 3:43AM0.58m | |||||||
 |  | | |  |  |  | | |  |  | | | | | | |  | | | |
 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — |
 | 8:15 | — | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:05 | — | — | 8:02 | — |
mm | — | — | — | — | 11 | 1 | — | — | 2 | 9 | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 19 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 17 | 18 | 18 | 17 |
Feels °C | 16 | 17 | 13 | 12 | 14 | 8 | 10 | 12 | 14 | 13 | 11 | 13 | 13 | 15 | 14 | 15 | 15 | 17 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 9 | WNW 9 | SW 11 | WNW 8 | — | — | WSW 9 | WSW 9 | W 9 | — | WSW 10 | WSW 10 | W 9 | W 9 | W 9 | W 8 | WNW 8 | W 8 | SSW 15 |
| kJ | 49 | 43 | 27 | 5 | 13 | — | — | 1047 | 554 | 463 | — | 1275 | 800 | 445 | 229 | 180 | 130 | 107 | 80 | 21 |
Swell 2 Height (m) Direction Period (s) | E 5 | WSW 7 | SW 11 | SW 11 | S 11 | — | — | — | — | — | — | — | SSW 7 | SSW 6 | S 18 | SW 17 | SW 16 | SSW 16 | SSW 15 | S 10 |
| kJ | 13 | 15 | 5 | 5 | 2 | — | — | — | — | — | — | — | 34 | 12 | 6 | 12 | 10 | 25 | 23 | 2 |
Swell 3 Height (m) Direction Period (s) | WSW 8 | E 5 | — | — | — | — | — | — | — | — | — | — | — | S 18 | — | — | S 11 | S 10 | S 10 | S 9 |
| kJ | 7 | 2 | — | — | — | — | — | — | — | — | — | — | — | 6 | — | — | 2 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | SSW 6 | SW 6 | WSW 6 | WSW 6 | SW 6 | SW 7 | WSW 10 | — | S 7 | WSW 9 | WSW 9 | — | — | — | — | — | — | — | — | W 7 |
| kJ | 60 | 56 | 111 | 230 | 131 | 708 | 2976 | — | 35 | 730 | 1497 | — | — | — | — | — | — | — | — | 69 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 30 | 16 | 249 | 181 | 330 | 258 | 182 | 64 | 67 | 427 | 195 | 16 | 162 | 21 | 187 | 181 | 182 | 21 | 160 | 220 |
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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