Surf Forecasts:
Kennack Sands surf forecast from 22 Aug 2026:
- Best quality surf: Thursday 27 Aug, 10PM (local time) - 4ft (1.2m), 6s period, SSW swell with offshore winds.
- Most powerful swell: Thursday 27 Aug, 7AM (local time) - 7ft (2.1m), 10s period, SSW swell with 855 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 10PM (local time) - 4ft (1.2m), 6s period with SSW swell.
Best Forecast Surf Conditions for Kennack Sands this week:
The surf forecast for Kennack Sands over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 27) at 10PM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.1m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Kennack Sands in the next 16 days are 2.1m 10s and forecast to arrive on Thursday (Aug 27) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 7s period and expected on Friday (Aug 28) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Thu 27th Aug) | 4ft (1.2m) 6s |
| Best Surf | 10PM (Thu 27th Aug) | 4ft (1.2m) 6s |
| Most Powerful | 7AM (Thu 27th Aug) | 7ft (2.1m) 10s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be honest from the get-go: this is a tough stretch for Kennack Sands. The whole 16-day window is a struggle, with only one single moment that even gets a borderline nod, and everything else is a write-off. The first run of usable surf doesn’t show up until the 4th of September, meaning there’s a long, frustrating gap from the start of the forecast right through the end of August with nothing worthwhile.
The pattern is dominated by messy cross-onshore winds and poor quality surf. Most days, even when there’s some swell in the water, the wind is tearing it apart. The combined wave energy for the first few days is weak to moderate at best, with values like 21 (weak) and 100 (moderate) on the 23rd afternoon, but it’s all blown out.
For a bit, from the 24th into the 25th, the swell does build, hitting 6 ft to 7 ft from the east, but it’s pinned by strong cross-onshore winds. The energy jumps up to 269 and then 569 on the 24th, which is moderate to strong, but the conditions are so messy it’s a waste. Honestly, this setup looks more interesting for kite surfing than paddle surfing – the wind is strong and the waves are choppy, so if you’ve got a kite, you might have a go, but for a surfboard, forget it.
The only bright spot, and I mean the *only* one, is the afternoon of Friday the 4th of September. The wind finally swings offshore from the northwest, and we get clean 7 ft swell from the SSW. The period is 8 seconds, so it’s a bit of a short-period wind swell, but the energy is strong at 861. The data says it’s a marginal forecast, but honestly, with clean offshore wind and chest-to-head-high waves, that’s your standout. It’s not perfect, but it’s the best we’ve got in a very long dry spell. For a sheltered spot like Kennack Sands, seeing that size and direction with offshore wind is a proper treat. Water temperature is about average for the time of year, nothing unusual to report.
Every other day is a bust. The 22nd through the 3rd are all scores of zero. The 4th morning is a 1 out of 10, but with clean conditions and a tiny 0.7 ft swell, it’s not worth paddling out for. The 5th and 6th are flat again. If you’re desperate, mark that Friday afternoon on the 4th of September, but keep your expectations low.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sat afternoon, min 15°C on Fri night). Winds increasing (light winds from the NNW on Fri night, strong winds from the E by Mon morning). | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Tue morning. Very mild (max 19°C on Mon night, min 17°C on Mon night). Winds decreasing (strong winds from the E on Mon night, light winds from the SSE by Tue night). | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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 15 | E 4 | SSW 15 | SSW 14 | ESE 5 | ESE 6 | E 6 | E 8 | E 7 | E 7 | E 7 | E 6 | SSW 7 | SSW 7 | S 7 | SSW 9 | S 12 | SSW 7 | S 6 | SSW 11 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 21 | 15 | 42 | 39 | 64 | 86 | 251 | 544 | 465 | 195 | 86 | 10 | 86 | 161 | 302 | 302 | 3 | 121 | 97 | 531 | 9 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross | cross | cross-on | cross-off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 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 | 5:42AM4.38m | 5:57PM4.71m | ||||||||
Low Tide | 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 | 12:16PM0.37m | 00:39AM0.21m | |||||||
 | |  | | | |  | | |  | |  |  | | | |  | | | | | |
 | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — |
 | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — |
mm | — | — | — | — | — | — | — | — | — | 2 | — | 4 | 3 | 4 | — | — | — | — | 1 | 2 | 2 |
Temp °C | 17 | 18 | 17 | 18 | 18 | 18 | 17 | 18 | 19 | 18 | 19 | 18 | 19 | 19 | 18 | 18 | 18 | 17 | 18 | 18 | 17 |
Feels °C | 13 | 15 | 12 | 13 | 13 | 13 | 10 | 11 | 12 | 13 | 18 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 13 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | W 9 | E 4 | W 9 | SSW 14 | WSW 10 | SW 10 | SW 9 | SSW 13 | SW 9 | W 10 | E 7 | W 9 | W 8 | W 8 | S 7 | SSW 9 | S 12 | WSW 8 | W 9 | SSW 11 | SW 10 |
| kJ | 53 | 15 | 24 | 39 | 19 | 24 | 13 | 17 | 19 | 55 | 86 | 81 | 52 | 46 | 302 | 302 | 3 | 176 | 189 | 531 | 432 |
Swell 2 Height (m) Direction Period (s) | NNW 6 | WSW 9 | SSW 15 | W 9 | SSW 14 | SSW 14 | SSW 14 | SSW 9 | WNW 11 | SW 8 | W 10 | SW 8 | E 4 | SW 12 | W 8 | — | E 6 | WNW 8 | S 6 | ESE 8 | E 7 |
| kJ | 6 | 26 | 42 | 14 | 36 | 39 | 18 | 8 | 12 | 35 | 71 | 30 | 2 | 6 | 41 | — | 1 | 113 | 97 | 116 | 8 |
Swell 3 Height (m) Direction Period (s) | SSW 15 | WNW 7 | NNW 4 | NNW 4 | SW 12 | W 8 | W 9 | W 9 | SSW 13 | SSW 13 | SSW 8 | E 6 | SW 12 | — | SW 12 | — | — | W 10 | ESE 5 | — | E 7 |
| kJ | 21 | 15 | 2 | 2 | 6 | 1 | 7 | 6 | 17 | 17 | 46 | 10 | 6 | — | 6 | — | — | 71 | 40 | — | 9 |
Wind waves Height (m) Direction Period (s) | — | — | ENE 4 | E 5 | ESE 5 | ESE 6 | E 6 | E 8 | E 7 | E 7 | — | S 3 | SSW 7 | SSW 7 | ESE 5 | W 9 | W 8 | SSW 7 | N 4 | NW 7 | W 7 |
| kJ | — | — | 12 | 21 | 64 | 86 | 251 | 544 | 465 | 195 | — | 6 | 86 | 161 | 39 | 1428 | 566 | 121 | 68 | 947 | 246 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 38 | 15 | 30 | 39 | 44 | 189 | 165 | 160 | 217 | 30 | 30 | 30 | 219 | 29 | 47 | 180 | 16 | 167 | 523 | 167 |
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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