Surf Forecasts:
Kennack Sands surf forecast from 21 Aug 2026:
- Most powerful swell: Tuesday 25 Aug, 1AM (local time) - 8ft (2.4m), 7s period, E swell with 611 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 2.4m 7s and forecast to arrive on Tuesday (Aug 25) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Friday (Aug 28) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Tue 25th Aug) | 8ft (2.4m) 7s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you. For the next sixteen days, it is a bit of a write-off here at Kennack Sands. We're looking at a blank run of poor surf conditions right the way through. Don't get your hopes up for any standout sessions.
The pattern is flat and frustrating. We start off on Friday the 21st of August with tiny 0.7 ft waves. Sure, there's a decent 13-second period from the SSW, and the wind is offshore or cross-off, giving us clean conditions, but the combined swell energy is a feeble 22, barely enough to wet your board. It stays that small through the weekend. Saturday the 22nd is even worse, with a 1 ft swell from the ENE and a period of 2 seconds, giving a laughable energy reading of 1. That's just wind chop.
Things try to build around Monday the 24th and Tuesday the 25th, with the swell getting up to 5 ft and 7 ft, but it's a messy ESE windswell with a 6-second period. The energy readings jump up to 137 and 326, but it's all for nothing with that 28 mph cross-onshore wind turning the place into a washing machine. By Wednesday the 26th, we've got 6 ft of SSW swell with a 7-second period and 403 of combined energy, but again, the wind is cross or cross-shore, making it lumpy and choppy. That's a setup that looks more interesting for kite surfing than paddle surfing.
There's not a single day where the stars align. Even when the swell has some potential, the wind is junk, and when the wind is good, the swell is gone. Towards the end of the run, on the 3rd of September, we get a glassy morning with a tiny 1 ft groundswell from the SSW (period 15 seconds) offering 46 of energy. Clean, yes, but you'd need a longboard and a prayer. Nothing rides above a zero score in the surf quality department.
So, the honest truth? There are no good surf options in this 16-day window. Kennack Sands is an inconsistent, sheltered spot, and this forecast is a bleak one. A blank run like this is more normal for the area, unfortunately. Forecasts can always change, but right now, save your petrol and keep the boards in the shed.
- Rusty
Short Range ForecastMostly dry. Very mild (max 18°C on Sat afternoon, min 14°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Tue night. Very mild (max 19°C on Mon night, min 17°C on Sun night). Winds increasing (light winds from the NE on Sun night, strong winds from the E by Mon night). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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) | SSW 13 | SSW 16 | SSW 16 | ENE 2 | E 5 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | ESE 6 | ESE 6 | E 7 | E 7 | E 7 | S 5 | S 6 | SSW 7 | SSW 8 | SSW 7 | SSW 7 | S 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 17 | 25 | 24 | 1 | 22 | 42 | 39 | 38 | 38 | 119 | 309 | 611 | 245 | 56 | 28 | 154 | 400 | 370 | 305 | 249 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-on | cross-on | cross-off | cross-on | on | cross | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | cross | cross-on | cross | cross | cross |
High Tide | 11:42AM3.40m | 00:25AM3.26m | 1:09PM3.29m | 1:52AM3.23m | 2:28PM3.38m | 3:01AM3.38m | 3:28PM3.62m | 3:53AM3.62m | 4:14PM3.91m | 4:34AM3.89m | 4:52PM4.21m | 5:10AM4.15m | 5:25PM4.49m | ||||||||
Low Tide | 5:31AM1.50m | 6:05PM1.62m | 6:38AM1.72m | 7:29PM1.75m | 8:12AM1.74m | 9:05PM1.64m | 9:33AM1.53m | 10:08PM1.35m | 10:25AM1.22m | 10:53PM1.02m | 11:06AM0.90m | 11:30PM0.70m | 11:42AM0.61m | 00:05AM0.42m | |||||||
 |  |  | | | | | |  | |  | | |  |  |  | |  | | | | |
 | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — |
 | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 10 | 3 | 2 | 5 | 4 | 1 | 15 |
Temp °C | 17 | 17 | 15 | 17 | 18 | 17 | 17 | 18 | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 |
Feels °C | 12 | 11 | 13 | 13 | 16 | 13 | 14 | 15 | 14 | 12 | 10 | 11 | 17 | 15 | 18 | 13 | 12 | 14 | 14 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 8 | W 8 | W 6 | E 5 | E 5 | W 9 | ESE 5 | ESE 5 | SW 9 | SSW 13 | SSW 13 | WNW 10 | E 7 | W 9 | W 9 | W 8 | W 8 | W 8 | SSW 7 | S 12 |
| kJ | 225 | 140 | 69 | 19 | 22 | 7 | 14 | 5 | 9 | 13 | 17 | 17 | 33 | 56 | 41 | 40 | 34 | 132 | 82 | 249 | 3 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | NW 8 | W 9 | WSW 9 | W 9 | SSW 14 | SW 12 | WSW 10 | SSW 13 | SW 9 | WNW 11 | SW 8 | W 10 | SW 8 | E 5 | S 12 | SW 12 | S 12 | W 8 | SW 12 |
| kJ | 17 | 17 | 15 | 36 | 26 | 24 | 39 | 36 | 38 | 18 | 13 | 12 | 11 | 47 | 31 | 2 | 3 | 6 | 3 | 76 | 5 |
Swell 3 Height (m) Direction Period (s) | S 16 | SSW 16 | SSW 16 | NNW 6 | WNW 7 | SSW 15 | NW 4 | SSW 14 | SSW 14 | W 9 | W 9 | SSW 9 | SSW 13 | SW 8 | E 6 | SW 12 | — | — | — | W 11 | — |
| kJ | 5 | 25 | 24 | 6 | 15 | 42 | 1 | 38 | 38 | 6 | 6 | 8 | 17 | 17 | 11 | 6 | — | — | — | 20 | — |
Wind waves Height (m) Direction Period (s) | N 3 | NNW 3 | — | ENE 2 | — | N 4 | E 4 | ESE 5 | E 5 | ESE 6 | ESE 6 | E 7 | E 7 | SSE 4 | S 5 | S 6 | SSW 7 | SSW 8 | SSW 7 | — | WSW 7 |
| kJ | 2 | 6 | — | 1 | — | 6 | 3 | 13 | 21 | 119 | 309 | 611 | 245 | 24 | 28 | 154 | 400 | 370 | 305 | — | 384 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 84 | 206 | 8 | 30 | 39 | 15 | 19 | 8 | 8 | 330 | 165 | 182 | 160 | 163 | 30 | 274 | 160 | 29 | 29 | 408 | 67 |
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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