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Surf Forecasts:
Sennen Cove surf forecast from 16 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 4AM (local time) - 7.5ft (2.3m), 8s period, WNW swell with 686 kJ wave energy.
Best Forecast Surf Conditions for Sennen Cove this week:
The most powerful waves expected at Sennen Cove in the next 16 days are 2.3m 8s and forecast to arrive on Thursday (Aug 20) 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 1.9m 7s period and expected on Sunday (Aug 23) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Thu 20th Aug) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Sennen Cove over the next 16 days.
The Lowdown
Hey crew, Rusty here, and I've got to level with you – this 16-day look for Sennen Cove is a tough one to swallow. The whole stretch is plagued by messy winds and choppy water, leaving us with next to nothing to get amped about. We've got a real long dry spell, from now until nearly the end of August, with barely a wave worth the walk.
The first real chance of anything doesn't pop up until Friday the 28th of August. The morning shows a spike in swell to 8ft from the West, but the wind is light and blowing across the face. The combined energy is strong at 1175, but it’s a rough setup. That's a big, powerful swell that's way too much for groms, and even for the experienced heads, it's going to be a battle. The water temp is about what you'd expect for late summer.
The standout? Honestly, there isn’t a clean one. If I had to pick the best of a bad lot, the morning of Friday the 28th August is the only time the rating even flickers. The swell is big and powerful (8ft from the West), but with that 10-second period and the light cross-onshore wind, it’s going to be bumpy and ugly at this exposed beach. It's big and raw, but none of it will be pretty. For the rest of the time, the wind is howling, the swell is tiny and weak, and the energy numbers are mostly below 100, sometimes as low as 21. There’s a period of clean-looking skies from the 23rd to the 27th, but the swell is laughably small (0.7ft to 2ft) – barely a bump.
To be honest, for the bulk of this forecast, the conditions look way better for kite surfing than for paddle surfing, especially around the 19th and 20th when the wind and swell are both up. For us, it's just poor. A blank stretch like this, with so few consistent days, is pretty normal for this spot when the weather patterns get stuck.
Don't drown your board just yet, but for now, it's a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sun night, min 16°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Tue night. Very mild (max 18°C on Tue night, min 15°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | W 7 | W 7 | W 7 | WNW 9 | WNW 8 | W 7 | WNW 6 | WNW 6 | WNW 7 | WNW 6 | WNW 6 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | W 9 | SSW 16 | SSW 15 | W 10 | SSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 27 | 26 | 15 | 158 | 147 | 113 | 139 | 139 | 171 | 197 | 269 | 669 | 623 | 484 | 227 | 79 | 38 | 48 | 42 | 50 | 42 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-off |
High Tide | 7:47AM5.34m | 8:05PM5.46m | 8:25AM5.10m | 8:44PM5.11m | 9:03AM4.78m | 9:23PM4.68m | 9:44AM4.42m | 10:06PM4.24m | 10:30AM4.04m | 10:59PM3.84m | 11:34AM3.72m | 00:17AM3.56m | 1:05PM3.59m | 1:52AM3.54m | |||||||
Low Tide | 2:16PM0.22m | 2:40AM0.31m | 2:54PM0.50m | 3:16AM0.65m | 3:31PM0.84m | 3:53AM1.03m | 4:11PM1.21m | 4:34AM1.41m | 4:59PM1.57m | 5:25AM1.74m | 6:02PM1.84m | 6:37AM1.94m | 7:29PM1.95m | ||||||||
 |  |  | | | | | |  | | | | | | |  |  | | | | | |
 | 6:11 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — |
 | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — | 1 | — | — | — | 1 | 3 |
Temp °C | 16 | 17 | 20 | 20 | 18 | 19 | 18 | 18 | 18 | 18 | 17 | 18 | 17 | 18 | 18 | 16 | 16 | 16 | 16 | 16 | 15 |
Feels °C | 12 | 15 | 18 | 18 | 16 | 17 | 15 | 14 | 14 | 13 | 11 | 12 | 12 | 12 | 13 | 12 | 12 | 11 | 11 | 12 | 8 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 7 | W 7 | SW 18 | SW 18 | SW 16 | W 8 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | WNW 9 | WNW 9 | WNW 9 | WNW 7 | W 8 | WSW 10 | N 6 | W 10 |
| kJ | 27 | 26 | 15 | 12 | 12 | 10 | 12 | 28 | 29 | 24 | 24 | 22 | 21 | 484 | 227 | 79 | 27 | 35 | 33 | 24 | 30 |
Swell 2 Height (m) Direction Period (s) | WSW 8 | S 18 | N 3 | S 11 | — | — | SSW 17 | — | W 14 | — | — | — | SSW 14 | SSW 14 | SSW 14 | W 9 | W 9 | SSW 16 | W 8 | W 10 | SSW 15 |
| kJ | 11 | 7 | 1 | 2 | — | — | 28 | — | 4 | — | — | — | 21 | 41 | 19 | 36 | 38 | 48 | 12 | 50 | 42 |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | W 11 | — | — | — | — | — | — | — | — | — | — | — | SSW 14 | N 5 | SSW 13 | WNW 8 | SSW 15 | SSW 15 | NW 7 |
| kJ | 3 | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | 18 | 8 | 17 | 13 | 42 | 42 | 2 |
Wind waves Height (m) Direction Period (s) | N 4 | NNE 4 | WNW 4 | WNW 9 | WNW 8 | W 7 | WNW 6 | WNW 6 | WNW 7 | WNW 6 | WNW 6 | WNW 8 | WNW 9 | — | N 5 | — | N 5 | N 4 | N 4 | E 6 | NE 6 |
| kJ | 13 | 3 | 5 | 158 | 147 | 113 | 139 | 139 | 171 | 197 | 269 | 669 | 623 | — | 11 | — | 15 | 22 | 8 | 144 | 265 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 267 | 303 | 251 | 268 | 213 | 272 | 268 | 213 | 206 | 206 | 250 | 206 | 206 | 206 | 117 | 5 | 5 | 20 | 5 | 5 | 179 |
Best forecast wave conditions in North Cornwall | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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Information about the Sennen Cove Surf forecast
The above surf forecast table for Sennen Cove provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sennen Cove can be found by selecting the local surf guide option on the grey menu. Our Sennen Cove 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 (Sennen Cove) 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 Sennen Cove 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.
Are you planning a holiday in North Cornwall? If you are looking for accommodation near Sennen Cove, camping, hotels and holiday cottages in North Cornwall, consider staying in Penzance which is 12 km (7 miles) away. Other places in and around North Cornwall where you can find information about places to rent, and car hire include Camborne which is 31 km (19 miles) away, The Lizard, Penryn and Falmouth.
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