Surf Forecasts:
Kennack Sands surf forecast from 9 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 10AM (local time) - 4.5ft (1.3m), 6s period, E swell with 119 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 1.3m 6s and forecast to arrive on Wednesday (Aug 12) at 10AM. 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 10s period and expected on Thursday (Aug 13) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Wed 12th Aug) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Right, let’s be straight with you. I’ve had a good look at the charts for Kennack Sands, and honestly, mate, it’s a pretty bleak run for the next 16 days. There’s a real gap right at the start – nothing worth getting wet for at all from Sunday the 9th of August all the way through to Friday the 21st of August. That’s nearly two weeks of flat or hopeless conditions. The water is sitting at 67°F which is much warmer than normal for this time of year, but that’s about the only positive.
The first time you’ll even see a ripple is a tiny bump on the 21st of August – Friday afternoon. We’re looking at a 4ft swell from the east, but with a short period of 5 seconds, it’s not going to have any punch. The combined energy is only 99 (weak), so it’s weak. The wind is offshore from the northwest, which is clean, but the swell is so small and junky it’s barely surfable. It’s a forgettable session.
The only real standout in this whole forecast is far out – Sunday the 23rd of August. On the morning, we’ve got a 5ft swell from the SSW, with a period of 6 seconds, and the wind is offshore from the northwest. The combined energy jumps to 155 (moderate). That’s the biggest push we’ll see in the whole period. The direction from the SSW is a good match for the spot, and with light offshore wind, it’ll be clean. The swell is under 5ft, so it’s fine for a mix of abilities, but it’s a beach break, and with a short period, it won’t be a world-beater. Still, it’s the best on offer. After that, the next week is back to tiny, weak pulses with no quality.
To be honest, Kennack is a sheltered spot, and it’s inconsistent. A blank run like this is more normal for the area. Even the best day on the 23rd is just a “meh” little wave. If you’re desperate, you might get a couple of knee-high runners on the 23rd morning, but I wouldn’t hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon afternoon, min 17°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Thu morning, min 17°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
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 | ESE 3 | E 4 | E 6 | E 6 | E 6 | E 6 | E 5 | E 6 | S 11 | S 13 | S 13 | S 13 | W 8 | S 12 | S 20 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1 | 1 | 0 | 0 | 3 | 3 | 3 | 30 | 64 | 119 | 78 | 31 | 13 | 15 | 2 | 3 | 3 | 3 | 0 | 3 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | cross-off | glassy | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off |
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 | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — |
Temp °C | 21 | 20 | 18 | 21 | 22 | 20 | 19 | 19 | 20 | 21 | 22 | 23 | 26 | 25 | 20 | 22 | 22 | 19 | 20 | 18 | 17 |
Feels °C | 18 | 16 | 17 | 20 | 21 | 17 | 17 | 15 | 16 | 18 | 23 | 20 | 23 | 22 | 20 | 21 | 20 | 18 | 17 | 13 | 13 |
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 | W 7 | W 7 |
| kJ | 27 | 26 | 46 | 26 | 35 | 51 | 20 | 18 | 88 | 131 | 144 | 177 | 286 | 290 | 220 | 130 | 125 | 135 | 102 | 107 | 53 |
Swell 2 Height (m) Direction Period (s) | ESE 4 | WSW 6 | SW 7 | WNW 9 | SW 7 | SW 7 | SW 6 | W 9 | WNW 7 | SW 12 | W 6 | E 6 | E 5 | E 6 | E 5 | — | — | — | WSW 8 | S 12 | S 12 |
| kJ | 1 | 4 | 16 | 25 | 15 | 7 | 6 | 7 | 10 | 6 | 1 | 22 | 13 | 15 | 2 | — | — | — | 24 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | WSW 6 | E 4 | — | SW 6 | S 13 | S 13 | W 10 | SW 6 | SW 6 | SW 6 | — | — | S 11 | — | S 11 | S 13 | S 13 | S 13 | — | — | S 20 |
| kJ | 4 | 1 | — | 14 | 3 | 3 | 8 | 1 | 1 | 1 | — | — | 2 | — | 2 | 3 | 3 | 3 | — | — | 7 |
Wind waves Height (m) Direction Period (s) | — | — | WNW 4 | — | NW 5 | NNW 4 | ESE 3 | E 4 | E 6 | E 6 | E 6 | E 6 | — | NW 3 | NW 3 | — | WNW 2 | — | — | NNW 5 | NNW 7 |
| kJ | — | — | 7 | — | 12 | 3 | 3 | 30 | 64 | 119 | 78 | 31 | — | 3 | 2 | — | 1 | — | — | 3 | 88 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 425 | 186 | 186 | 15 | 21 | 15 | 424 | 188 | 19 | 30 | 8 | 8 | 21 | 21 | 8 | 21 | 182 | 21 | 83 | 226 | 226 |
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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