Surf Forecasts:
Kennack Sands surf forecast from 29 Aug 2026:
- Most powerful swell: Saturday 29 Aug, 4AM (local time) - 5ft (1.6m), 6s period, SW swell with 171 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 3.5m 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 folks, Rusty here. Let's be straight with you – this is a tough one for Kennack Sands. The 16-day outlook is a long, dry spell with barely a whisper of rideable surf.
We kick off on Friday afternoon, August 28th, and it's already a no-go. The water is sitting at a mild 65°, which is a touch warmer than normal for this time of year, but that's the only good news. The combined energy of all swells is zero, and it stays that way for a solid week and a half. There's a strong breeze from the WSW at 25 mph, but it's cross-offshore, so the surface is clean, just completely flat. Expect a gap of over a week with no real surf.
The first faint sign of life pops up on Sunday, the 30th of August, with a morning window showing a 4 ft swell from the SSW, but it's a short period of 7 seconds and a fresh cross-shore breeze blows it out. The combined energy is a weak 111, and it's still rated as poor surf conditions. The next glimmer is on Tuesday morning, September 1st, where we see a tiny 0.3 ft, very long-period 18-second groundswell from the south, but the energy is just 6. It's clean with a gentle breeze, but there's nothing to ride.
Then, on Monday, the 7th of September, we get a spike. The morning shows a 8 ft swell from the SSW, but it's a short period of just 6 seconds. The combined energy jumps to 484, which is a moderate surge, and the wind is a clean cross-offshore from the WNW. This is the only moment in the whole forecast that looks like it could hold something. However, that 8 ft height with a short period will be a lumpy, closing-out mess, and given the "marginal" rating, it's really only for experienced surfers who want to wrestle with some powerful, crumbly waves. After that, the trend dies off again immediately.
The final days of the outlook, from the 10th of September onwards, are just dirty. On the 10th, we have a 5 ft, 5-second period SSW swell with a combined energy of 119, but it's under a strong cross-onshore wind, making it choppy and blown out. By the 11th, we're looking at near gale winds and zero surf. This is a classic no-go period for Kennack. If you have a kite, this might be more interesting for you than a surfboard during those windy days.
Stay patient, lads. It's a blank run.
Rusty.
Short Range ForecastHeavy rain (total 25mm), heaviest during Fri night. Very mild (max 19°C on Fri night, min 17°C on Fri night). Mainly near gales. | Days 5-7 Weather SummarySome drizzle, heaviest during Wed morning. Very mild (max 19°C on Wed afternoon, min 16°C on Mon night). Winds increasing (light winds from the W on Mon night, strong winds from the SW by Wed morning). | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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) | WSW 6 | S 11 | SW 8 | WSW 9 | WSW 9 | SSW 7 | WSW 8 | WSW 9 | WSW 9 | W 9 | S 18 | S 18 | W 9 | S 11 | SSW 16 | SSW 15 | SSW 6 | SSW 15 | SSW 15 | SSW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 0 | 2 | 0 | 0 | 0 | 111 | 0 | 0 | 0 | 0 | 6 | 6 | 0 | 2 | 25 | 23 | 62 | 22 | 44 | 22 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 9:15AM4.34m | 9:40PM4.21m | |||||||
Low Tide | 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 | 4:06PM0.73m | ||||||||
 |  |  |  |  |  | |  |  | |  | | | |  | | | | | | |
 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — |
 | 8:14 | — | — | 8:12 | — | — | 8:09 | — | — | 8:07 | — | — | 8:05 | — | — | 8:02 | — | — | 8:00 | — |
mm | — | 12 | 3 | — | — | 2 | 7 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 18 | 18 | 18 | 17 |
Feels °C | 12 | 14 | 13 | 10 | 14 | 13 | 13 | 8 | 13 | 13 | 15 | 15 | 15 | 14 | 12 | 14 | 14 | 12 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 11 | WNW 8 | — | — | WSW 9 | W 9 | — | — | WSW 9 | W 9 | W 10 | W 9 | SW 17 | W 8 | SSW 16 | SSW 15 | SSW 6 | WSW 8 | SSW 15 | SSW 15 |
| kJ | 5 | 12 | — | — | 921 | 355 | — | — | 1145 | 854 | 407 | 225 | 12 | 125 | 25 | 23 | 62 | 345 | 44 | 22 |
Swell 2 Height (m) Direction Period (s) | SW 11 | S 11 | — | — | NNW 6 | — | — | — | — | — | SSW 6 | S 18 | — | SW 16 | S 10 | SSW 15 | SW 9 | SSW 15 | SSW 15 | — |
| kJ | 5 | 2 | — | — | 34 | — | — | — | — | — | 26 | 6 | — | 10 | 2 | 22 | 12 | 21 | 22 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 18 | — | — | S 11 | — | — | SSW 15 | SSW 15 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 6 | — | — | 2 | — | — | 21 | 22 | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | WSW 6 | SW 8 | WSW 9 | — | SSW 7 | WSW 8 | WSW 9 | — | — | — | — | W 9 | — | W 7 | WSW 6 | W 8 | — | W 8 | WSW 8 |
| kJ | 162 | 141 | 967 | 2218 | — | 111 | 778 | 1955 | — | — | — | — | 214 | — | 131 | 193 | 458 | — | 308 | 370 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 163 | 584 | 584 | 180 | 64 | 81 | 64 | 184 | 16 | 162 | 29 | 21 | 160 | 30 | 529 | 723 | 286 | 716 | 187 | 181 |
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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