Surf Forecasts:
Kennack Sands surf forecast from 4 Sep 2026:
- Most powerful swell: Sunday 6 Sep, 10AM (local time) - 2.5ft (0.8m), 4s period, SE swell with 22 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 0.8m 4s and forecast to arrive on Sunday (Sep 06) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Tuesday (Sep 08) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Sun 6th Sep) | 2.5ft (0.8m) 4s |
Table - best surf conditions forecast for Kennack Sands over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s in store for us.
Well, I’m gutted to be honest. The entire 16-day outlook is a write-off for Kennack Sands. There’s just no surf worth paddling out for. The good news is that the spot is rated as inconsistent, so this kind of blank run is pretty normal around here. It won’t stay poor forever, and forecasts can always change, but right now, there’s nothing to get excited about.
The first possible session wouldn’t be until Friday, September 4th, but with a tiny 0.7 ft swell from the SSW and a period of 14 seconds, the combined wave energy is a measly 20 (weak). The wind is a moderate WNW breeze at 16 mph, keeping it clean, but the swell is just too small to do anything. That same story repeats Saturday morning the 5th – glassy conditions with a WSW wind at 3 mph, but still only 0.7 ft and a 13-second period. It’s heartbreaking because the water is a touch warmer than normal at 64°, but that’s the only highlight.
The rest of the week is flat or close to it. We get a sniff of a 3 ft SE swell on Sunday the 6th, but the period is a short, weak 4 seconds, and it’s onshore at 12 mph, making it choppy and messy. The combined energy only reaches 38 (weak). After that, from Monday the 7th right through to the end of the period on the 19th of September, the swell is either non-existent or barely a ripple. We see a few 0.3 ft to 0.7 ft pulses from the south, but with periods of 10 to 15 seconds, the combined energy never gets above 9 (weak). The wind is often offshore or cross-offshore, keeping the surface clean, but there’s simply no wave to ride.
The only thing I can say is that if you’re a kite surfer, the strong, steady offshore winds on Tuesday the 8th and Saturday the 12th might look interesting, but for a paddle surfer, the cams are going to be showing a flat, calm sea for the foreseeable future. It’s a tough stretch.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 15°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Wed night. Very mild (max 18°C on Wed night, min 15°C on Wed night). Winds increasing (moderate winds from the W on Mon morning, strong winds from the SW by Wed night). | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SE 4 | SSW 12 | SW 4 | S 12 | W 12 | W 10 | W 9 | S 11 | W 9 | S 10 | S 10 | WSW 7 | W 8 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 20 | 20 | 20 | 18 | 17 | 17 | 22 | 15 | 8 | 11 | 0 | 0 | 0 | 2 | 0 | 2 | 2 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | glassy | cross-on | on | on | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross | cross | cross-off | cross-off | cross-off |
High Tide | 10:08AM4.04m | 10:41PM3.85m | 11:20AM3.76m | 00:07AM3.59m | 12:55PM3.67m | 1:45AM3.60m | 2:23PM3.87m | 3:02AM3.84m | 3:28PM4.21m | 3:59AM4.16m | 4:20PM4.57m | 4:46AM4.47m | 5:04PM4.86m | ||||||||
Low Tide | 5:02PM1.02m | 5:34AM1.19m | 6:15PM1.25m | 6:56AM1.35m | 7:48PM1.26m | 8:27AM1.25m | 9:14PM1.00m | 9:42AM0.94m | 10:17PM0.61m | 10:38AM0.56m | 11:08PM0.24m | 11:25AM0.23m | 11:51PM-0.02m | ||||||||
 |  |  |  | | | | | | | |  | | | | | |  | | | | |
 | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:48 | — | — |
 | — | 7:59 | — | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | 12 | — | — | — |
Temp °C | 18 | 17 | 16 | 15 | 15 | 16 | 18 | 19 | 18 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 18 | 20 | 19 | 17 |
Feels °C | 15 | 13 | 13 | 15 | 13 | 14 | 15 | 18 | 17 | 14 | 13 | 11 | 11 | 10 | 10 | 11 | 11 | 16 | 16 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 10 | W 12 | W 11 | W 10 | W 9 | W 9 | W 9 | WSW 13 | SW 12 | — | — | S 11 | W 11 | WNW 10 | W 10 | — | — | — | — |
| kJ | 773 | 621 | 730 | 800 | 546 | 234 | 106 | 74 | 194 | 1687 | 5 | — | — | 2 | 85 | 96 | 47 | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SE 4 | WSW 16 | S 12 | — | — | — | — | — | S 10 | S 10 | — | — | — | — |
| kJ | 20 | 20 | 20 | 18 | 17 | 17 | 16 | 11 | 147 | 11 | — | — | — | — | — | 2 | 2 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 12 | ESE 4 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 15 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SE 2 | SE 4 | — | SW 4 | — | W 12 | W 10 | W 9 | W 10 | W 9 | W 8 | W 8 | WSW 7 | W 8 | W 9 | W 9 |
| kJ | — | — | — | — | — | 1 | 22 | — | 8 | — | 1136 | 1155 | 861 | 963 | 742 | 359 | 241 | 498 | 908 | 817 | 707 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 167 | 187 | 101 | 29 | 33 | 30 | 30 | 33 | 30 | 187 | 64 | 194 | 187 | 187 | 187 | 181 | 249 | 286 | 194 | 286 | 180 |
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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