Surf Forecasts:
Kennack Sands surf forecast from 12 Aug 2026:
- Most powerful swell: Wednesday 12 Aug, 1PM (local time) - 3.5ft (1.0m), 5s period, E swell with 53 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 1.0m 5s and forecast to arrive on Wednesday (Aug 12) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 7s period and expected on Tuesday (Aug 18) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 12th Aug) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright, let’s get into it. I’ll be straight with you, mate—this is one of those outlooks where you might be better off picking up a new hobby for a while. Kennack Sands is a sheltered spot, really only picking up swell from the SSW, and the next two weeks look pretty grim for any proper wave riding.
Right now, through the first week and into the second, it’s all tiny or flat. The water is sitting at 67°, which is 4° warmer than usual for this time of year—pretty notable, but that won’t help the surf. From Wednesday 12th August right through to Monday 24th August, we’re looking at a long stretch with almost nothing. Most days show swell under 1ft, short periods of 4 to 7 seconds, and combined energy readings mostly under 10 (weak). There’s a little bump on Wednesday afternoon 19th August when a long-period 16-second SSW groundswell rolls in, but it’s only 0.7ft—energy is just 24 (weak). Winds go offshore and glassy in patches, but there’s simply not enough height to surf.
The only time things lift their head is late in the run. On Saturday 22nd August afternoon, we see about 4ft from the east with a 6-second period, and combined energy jumping to 113 (moderate). Winds are cross-off from the WNW at 22 mph, so it’ll be clean but a bit lumpy. That’s your best chance, but it’s still an east swell hitting a SSW-exposed break—so don’t expect much shape. Sunday 23rd August morning has about 2ft east with fresh offshore NW winds, but again, tiny and short period. There’s a bigger, longer-period SSW groundswell showing on Sunday afternoon at 0.7ft and 14 seconds, but that’s still barely a ripple for the sheltered side.
Honestly, if you’re a kite surfer, that Saturday 22nd afternoon with 4ft and a decent breeze might look more interesting. For paddle surfing, there’s nothing worth paddling out for in this whole 16-day window. It’s a tough run, but Kennack is known for being inconsistent, and this is one of those blank spells. Forecasts can change, though—keep an eye out.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Thu morning, min 16°C on Fri night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sat morning, min 15°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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) | E 5 | E 5 | ESE 5 | E 5 | E 4 | S 11 | S 13 | S 13 | S 13 | S 12 | S 12 | S 20 | W 7 | S 18 | S 18 | W 7 | E 7 | S 16 | E 5 | W 7 | SSW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 57 | 31 | 8 | 7 | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 7 | 0 | 7 | 6 | 0 | 4 | 5 | 2 | 0 | 29 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 5:19PM4.87m | 5:44AM4.68m | 6:04PM5.07m | 6:27AM4.80m | 6:46PM5.14m | 7:08AM4.81m | 7:27PM5.07m | 7:48AM4.72m | 8:06PM4.88m | 8:26AM4.54m | 8:45PM4.58m | 9:06AM4.28m | 9:25PM4.22m | ||||||||
Low Tide | 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 | 2:28PM0.09m | 2:52AM0.15m | 3:06PM0.34m | 3:28AM0.47m | 3:44PM0.66m | ||||||||
 | |  | | |  |  | | | | | | | | | | | |  | | | |
 | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:13 | — | — |
 | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 23 | 22 | 25 | 24 | 20 | 20 | 19 | 18 | 19 | 17 | 15 | 18 | 18 | 16 | 19 | 19 | 18 | 19 | 19 | 19 |
Feels °C | 19 | 21 | 22 | 22 | 22 | 20 | 17 | 15 | 17 | 14 | 11 | 10 | 13 | 12 | 11 | 16 | 16 | 15 | 16 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 9 | WSW 9 | WSW 11 | W 10 | W 10 | W 9 | S 13 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | WNW 5 | WNW 4 | W 7 | W 8 | SW 17 | SW 17 | W 7 |
| kJ | 131 | 144 | 185 | 343 | 290 | 220 | 160 | 3 | 191 | 125 | 120 | 74 | 38 | 35 | 9 | 8 | 4 | 33 | 11 | 11 | 157 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 6 | ESE 5 | E 5 | E 4 | E 5 | — | S 13 | S 13 | S 12 | S 12 | S 12 | WSW 8 | E 5 | W 8 | W 7 | W 9 | E 5 | E 5 | — | SSW 17 |
| kJ | 6 | 1 | 8 | 7 | 3 | 2 | — | 3 | 3 | 3 | 3 | 3 | 11 | 1 | 10 | 8 | 6 | 5 | 2 | — | 29 |
Swell 3 Height (m) Direction Period (s) | SW 6 | S 12 | — | — | S 11 | S 11 | S 13 | — | — | — | — | S 20 | — | S 18 | S 18 | — | E 7 | S 16 | — | — | — |
| kJ | 1 | 3 | — | — | 2 | 2 | 3 | — | — | — | — | 7 | — | 7 | 6 | — | 4 | 5 | — | — | — |
Wind waves Height (m) Direction Period (s) | E 5 | E 5 | — | — | NW 3 | WNW 3 | — | W 9 | NNW 3 | N 4 | NNW 4 | NNW 5 | N 4 | NNW 4 | NNW 4 | — | WNW 5 | W 4 | W 7 | W 7 | — |
| kJ | 57 | 31 | — | — | 2 | 2 | — | 224 | 4 | 19 | 33 | 37 | 10 | 19 | 17 | — | 8 | 3 | 156 | 220 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 29 | 8 | 16 | 187 | 30 | 184 | 187 | 8 | 226 | 251 | 250 | 251 | 374 | 230 | 196 | 427 | 437 | 713 | 734 | 84 |
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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