Surf Forecasts:
Kennack Sands surf forecast from 9 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 1PM (local time) - 5ft (1.5m), 6s period, E swell with 165 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 1.5m 6s and forecast to arrive on Wednesday (Aug 12) 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 1.2m 11s period and expected on Thursday (Aug 13) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 12th Aug) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let's have a look at what's on the menu for the next couple of weeks.
Honestly, it's a flat spell for a while. We're looking at a real dry patch on the surf front. The first few days are a write-off, with nothing but tiny, weak leftovers that won't even get you a pop-up. The good news is that things start to look a little more promising further out.
The first real chance to get wet comes around Tuesday the 11th of August. Kennack Sands is seeing a small pulse of 2ft to 4ft swell from the east, but it's a short-period windswell and the wind is a nasty cross-onshore, making it choppy and lumpy. The wave energy is weak, bouncing between 9 and 61. It's not great, but it's something.
Wednesday the 12th sees a bit more size, with the swell hitting 5ft from the east, but again, the wind is a fresh cross-onshore. The combined energy is moderate (160), but the conditions are going to be a mess. This is more of a kite-surfing setup than a pure paddle session.
But if you're keen, the standout window is actually Thursday the 13th of August. The swell drops back to 2ft from the east, but the wind swings offshore from the NNW. That's the magic word: offshore. The wave energy is a weak 23, but with clean, moderate offshore conditions, those little waves will have some shape. It's not going to be big, but it'll be your best bet for a clean, fun session on a longboard or a foamie.
After that, it's back to small, inconsistent, and mostly wind-affected waves through the rest of the period. The 19th of August sees a very long-period (16 seconds) swell from the SSW, but it's only 0.7ft. The energy is a weak 24, and with the wind mostly cross or cross-off, it's really just a ripple maker. The water temp is about average for the time of year, nothing to write home about.
So, in a nutshell: the first week is mostly a write-off. Thursday the 13th is your best shot for a clean, small wave session. The rest is just waiting for something better.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon afternoon, min 17°C on Sun night). Winds increasing (calm on Sat night, fresh winds from the E by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu morning, min 17°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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) | ESE 4 | E 4 | WNW 9 | WNW 9 | S 13 | S 13 | E 4 | E 5 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | S 11 | S 13 | S 13 | S 13 | ENE 4 | E 5 | ESE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 1 | 0 | 0 | 3 | 3 | 9 | 61 | 86 | 160 | 112 | 54 | 23 | 16 | 2 | 3 | 3 | 3 | 7 | 19 | 8 |
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 | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross | off | off | off | off | cross-off | cross-off | cross-on | cross-on | cross |
High Tide | 2:25PM3.94m | 3:01AM3.96m | 3:32PM4.23m | 4:03AM4.21m | 4:29PM4.57m | 4:56AM4.47m | 5:19PM4.87m | 5:44AM4.68m | 6:04PM5.07m | 6:27AM4.80m | 6:46PM5.14m | 7:08AM4.81m | 7:27PM5.07m | ||||||||
Low Tide | 8:33AM1.15m | 9:17PM1.00m | 9:50AM0.90m | 10:26PM0.64m | 10:50AM0.55m | 11:22PM0.27m | 11:41AM0.23m | 00:10AM-0.02m | 12:27PM0.00m | 00:54AM-0.19m | 1:09PM-0.10m | 1:35AM-0.21m | 1:49PM-0.07m | 2:14AM-0.09m | |||||||
 | |  | | | | | | |  | | | | | | | | | | |  | |
 | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — |
 | — | 8:50 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 18 | 20 | 22 | 20 | 19 | 19 | 19 | 20 | 22 | 23 | 25 | 24 | 20 | 25 | 24 | 20 | 22 | 24 | 24 |
Feels °C | 18 | 16 | 16 | 20 | 21 | 17 | 16 | 14 | 15 | 15 | 19 | 20 | 20 | 19 | 19 | 23 | 21 | 16 | 18 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 5 | W 8 | WNW 8 | WNW 8 | WNW 7 | W 11 | WSW 10 | WSW 9 | WSW 9 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | W 8 | E 5 | WSW 7 |
| kJ | 27 | 26 | 46 | 26 | 35 | 51 | 20 | 11 | 119 | 131 | 141 | 146 | 332 | 296 | 266 | 159 | 123 | 65 | 44 | 19 | 18 |
Swell 2 Height (m) Direction Period (s) | ESE 4 | WSW 6 | SW 7 | WNW 9 | SW 7 | SW 7 | SW 6 | W 9 | SW 6 | SW 12 | W 6 | E 6 | E 6 | E 6 | E 5 | — | — | S 13 | NNW 5 | WNW 8 | ESE 5 |
| kJ | 3 | 4 | 16 | 25 | 15 | 7 | 6 | 7 | 1 | 6 | 1 | 41 | 23 | 16 | 2 | — | — | 3 | 10 | 19 | 8 |
Swell 3 Height (m) Direction Period (s) | WSW 6 | E 4 | — | SW 6 | S 13 | S 13 | W 10 | WSW 13 | SW 12 | SW 6 | SW 6 | WSW 12 | — | S 11 | S 11 | S 13 | S 13 | — | S 12 | NW 5 | WNW 8 |
| kJ | 4 | 1 | — | 14 | 3 | 3 | 8 | 16 | 6 | 1 | 1 | 50 | — | 2 | 2 | 3 | 3 | — | 3 | 7 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | WNW 4 | — | NW 5 | N 4 | E 4 | E 5 | E 6 | E 6 | E 6 | E 6 | NNW 3 | NW 3 | NNW 4 | NW 3 | NW 3 | N 4 | ENE 4 | — | NNW 6 |
| kJ | — | — | 7 | — | 12 | 1 | 9 | 61 | 86 | 160 | 112 | 54 | 3 | 9 | 8 | 3 | 5 | 14 | 7 | — | 37 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 425 | 186 | 186 | 15 | 21 | 15 | 410 | 165 | 29 | 30 | 30 | 8 | 16 | 36 | 21 | 21 | 21 | 134 | 30 | 248 | 30 |
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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