Surf Forecasts:
Kennack Sands surf forecast from 19 Aug 2026:
- Most powerful swell: Saturday 22 Aug, 10PM (local time) - 1ft (0.3m), 15s period, SSW swell with 42 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 0.3m 15s and forecast to arrive on Saturday (Aug 22) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 9s period and expected on Thursday (Aug 20) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Sat 22nd Aug) | 1ft (0.3m) 15s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s have a look at what’s on offer for Kennack Sands over the next couple of weeks.
Right off the bat, I’ve got to be straight with you – this is a tough period. The charts are showing a long, quiet stretch with hardly any swell to speak of. For the first ten days or so, from the 18th of August right through to the end of the month, we’re looking at a real flat spell. The combined swell energy is sitting at zero or very low values (0 to 24), and even when there’s a tiny pulse of 0.7ft, it’s coming from the SSW with a period that’s all over the place – sometimes a decent 16 seconds, but it’s just not enough to get anything going at this sheltered spot. The water temperature is a balmy 67°, which is much warmer than usual for the time of year – that’s over 2 degrees above normal, so you can leave the thick wetsuit at home.
The first real chance of anything rideable arrives around the 1st of September. Tuesday morning that week sees a jump in swell to 5ft from the SSW, with a short period of 7 seconds. The combined energy climbs to a moderate 192, but the wind is a gentle cross-onshore, so it’s going to be fairly choppy. It’s not a total write-off, but it’s not a standout either. Then Wednesday morning the 2nd of September, we’ve got 4ft from the same direction, period of 8 seconds, energy at 173, and again that cross-onshore breeze. The waves will be there, but they’ll be a bit messy.
For a break that’s inconsistent and rarely breaks properly, this is a pretty normal run of poor surf. The setup is sheltered, so it needs a decent push from the SSW to get going, and we’re just not seeing enough consistent energy. If you’re desperate for a paddle, the 1st and 2nd of September are your best bet, but keep expectations low. It’s one of those spells where you’re better off waiting for the next system to roll in.
Rusty out.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Very mild (max 18°C on Tue afternoon, min 15°C on Thu night). Winds decreasing (fresh winds from the W on Wed afternoon, light winds from the NNW by Thu night). | Days 5-7 Weather SummaryLight rain (total 6mm), mostly falling on Fri afternoon. Very mild (max 19°C on Sun morning, min 13°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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) | W 7 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 0 | 29 | 24 | 24 | 22 | 21 | 20 | 19 | 17 | 17 | 24 | 21 | 21 | 42 | 19 | 19 | 20 | 19 | 18 | 17 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | off | off | cross-off | cross | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off |
High Tide | 9:25PM4.22m | 9:47AM3.98m | 10:10PM3.84m | 10:36AM3.66m | 11:06PM3.49m | 11:42AM3.40m | 00:25AM3.26m | 1:09PM3.29m | 1:52AM3.23m | 2:28PM3.38m | 3:01AM3.38m | 3:28PM3.62m | 3:53AM3.62m | |||||||
Low Tide | 4:05AM0.83m | 4:23PM1.01m | 4:44AM1.18m | 5:07PM1.34m | 5:31AM1.50m | 6:05PM1.62m | 6:38AM1.72m | 7:29PM1.75m | 8:12AM1.74m | 9:05PM1.64m | 9:33AM1.53m | 10:08PM1.35m | ||||||||
 |  |  | |  | | |  |  |  | | | | | | | | | | | |
 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — |
 | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — |
mm | — | 4 | — | — | — | — | — | 1 | 1 | 6 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 18 | 18 | 17 | 18 | 18 | 16 | 16 | 15 | 14 | 18 | 17 | 16 | 19 | 19 | 16 | 16 | 19 | 17 |
Feels °C | 14 | 16 | 15 | 11 | 12 | 13 | 13 | 14 | 13 | 13 | 11 | 15 | 13 | 12 | 16 | 15 | 13 | 15 | 18 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SSW 17 | W 9 | SSW 16 | SSW 15 | SSW 14 | W 10 | W 10 | W 9 | W 8 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 |
| kJ | 11 | 29 | 287 | 24 | 22 | 21 | 787 | 464 | 215 | 133 | 38 | 42 | 23 | 24 | 14 | 24 | 13 | 14 | 14 | 12 |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 16 | — | — | — | SSW 14 | SSW 14 | SSW 13 | E 3 | SSW 16 | WNW 6 | SSW 15 | SSW 15 | WNW 5 | SSW 14 | WNW 5 | SSW 14 | SSW 13 | W 12 |
| kJ | — | — | 24 | — | — | — | 20 | 19 | 17 | 1 | 24 | 4 | 21 | 42 | 6 | 19 | 5 | 19 | 18 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | N 5 | SSW 13 | E 5 | SSW 15 | SW 12 | E 4 | SSW 14 | — | SSW 14 | WNW 5 | WNW 5 | SSW 13 |
| kJ | — | — | — | — | — | — | — | — | 2 | 17 | 2 | 21 | 6 | 1 | 19 | — | 20 | 3 | 2 | 17 |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | — | WNW 10 | W 8 | W 9 | — | — | ENE 2 | N 6 | NW 6 | N 4 | NW 6 | NNW 5 | N 4 | NW 6 | N 3 | — | — | — |
| kJ | 145 | 147 | — | 370 | 533 | 865 | — | — | 1 | 24 | 39 | 21 | 43 | 24 | 9 | 26 | 1 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 181 | 184 | 84 | 182 | 255 | 184 | 36 | 8 | 8 | 8 | 226 | 251 | 186 | 15 | 19 | 413 | 279 | 424 | 415 | 19 |
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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