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Surf Forecasts:
Sennen Cove surf forecast from 31 Aug 2026:
- Best quality surf: Saturday 5 Sep, 4AM (local time) - 3.5ft (1.1m), 8s period, W swell with glassy winds.
- Most powerful swell: Friday 4 Sep, 10AM (local time) - 7ft (2.1m), 9s period, W swell with 671 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 4AM (local time) - 3.5ft (1.1m), 8s period with W swell.
Best Forecast Surf Conditions for Sennen Cove this week:
The surf forecast for Sennen Cove over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 05) at 4AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.9m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Sennen Cove in the next 16 days are 2.1m 9s and forecast to arrive on Friday (Sep 04) 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 5s period and expected on Sunday (Sep 06) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 5th Sep) | 3.5ft (1.1m) 8s |
| Best Surf | 4AM (Sat 5th Sep) | 3.5ft (1.1m) 8s |
| Most Powerful | 10AM (Fri 4th Sep) | 7ft (2.1m) 9s |
Table - best surf conditions forecast for Sennen Cove over the next 16 days.
The Lowdown
Alright, let's get into the outlook for our local stretch. I'm talking about Sennen Cove here, and the news isn't great. The water's about 64°F, which is a touch warmer than average for this time of year, so at least you won't freeze if you decide to go for a paddle.
The big picture for the next two weeks is mostly a bust. We've got a long, painful run of rough, onshore conditions.
Starting on Monday, August 31st, we've got a 8ft W swell rolling in, but it's getting hammered by a 15 mph cross-onshore wind. The result is a choppy, lumpy mess. The combined wave energy is strong at 1275, but it's useless. Tuesday the 1st and Wednesday the 2nd of September are more of the same, with cross-onshore winds and lumpy surf. The swell drops, but the quality is still poor.
Through the 3rd and 4th, we're looking at moderate to fresh cross-onshore winds and choppy waves. The swell stays around 6ft to 7ft, but the wind just blows it out. The energy is moderate to strong, but it's not the kind of energy you want to deal with.
There's a tiny window on Saturday, September 5th. The morning brings a light 9 mph SE cross-offshore wind, which will clean the surface right up. The swell is a modest 4ft from the W with a 9-second period, and the wave energy is moderate at 313. It's a clean, small wave day, but expectations should be low. The afternoon is even smaller, at 3ft, and marginal.
After that, the door slams shut. We have a massive gap from Sunday, September 6th, all the way through to Tuesday, September 15th. The surf is either too small, too onshore, or just plain gone. The wind is often strong, with some gale-force gusts on the 10th, and the wave energy drops to almost nothing, with values as low as 16.
So, the only real standout, if you can call it that, is the Saturday morning, September 5th. The Sennen Cove break will be clean with a light cross-offshore wind, but it's small. For a beginner, the 4ft swell is manageable, but it's not going to be a classic. For everyone else, it's a low-expectation day. The rest of the 16-day window is a write-off.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed morning. Very mild (max 19°C on Thu morning, min 17°C on Mon afternoon). Winds increasing (light winds from the WSW on Mon night, fresh winds from the SSW by Wed morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Sun morning, min 15°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the ESE by Sat night). | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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 10 | W 10 | W 9 | W 9 | W 8 | W 6 | WSW 7 | WSW 8 | WSW 8 | W 8 | W 8 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1275 | 511 | 224 | 177 | 134 | 79 | 400 | 308 | 336 | 337 | 476 | 671 | 568 | 364 | 184 | 134 | 106 | 57 | 53 | 49 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | off | cross-off | cross-off | cross-on |
High Tide | 7:35PM5.49m | 7:53AM5.27m | 8:12PM5.32m | 8:32AM5.09m | 8:53PM5.03m | 9:16AM4.80m | 9:41PM4.65m | 10:09AM4.45m | 10:43PM4.25m | 11:20AM4.14m | 00:08AM3.97m | 12:55PM4.05m | 1:45AM4.01m | |||||||
Low Tide | 2:07AM0.30m | 2:21PM0.42m | 2:43AM0.50m | 3:00PM0.64m | 3:24AM0.79m | 3:46PM0.94m | 4:14AM1.13m | 4:46PM1.25m | 5:21AM1.44m | 6:07PM1.48m | 6:50AM1.58m | 7:44PM1.46m | ||||||||
 |  | |  |  |  |  | | | | | | |  | | | | | | | |
 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — |
 | 8:09 | — | — | 8:07 | — | — | 8:06 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — | — | 7:57 | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 17 | 16 | 16 | 16 | 16 | 17 | 20 | 19 | 19 |
Feels °C | 12 | 15 | 15 | 14 | 15 | 13 | 14 | 15 | 18 | 16 | 16 | 15 | 13 | 14 | 14 | 13 | 13 | 16 | 15 | 19 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 9 | W 9 | W 8 | W 6 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 |
| kJ | 1275 | 511 | 224 | 177 | 134 | 79 | 45 | 21 | 45 | 47 | 47 | 671 | 568 | 364 | 184 | 134 | 106 | 57 | 53 | 49 |
Swell 2 Height (m) Direction Period (s) | — | N 5 | N 5 | SSW 17 | SSW 16 | SSW 16 | — | S 18 | SW 9 | S 9 | — | SSW 14 | SSW 14 | SSW 14 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | SSW 12 | S 6 |
| kJ | — | 8 | 4 | 29 | 25 | 25 | — | 6 | 3 | 2 | — | 41 | 41 | 20 | 111 | 114 | 52 | 28 | 15 | 16 |
Swell 3 Height (m) Direction Period (s) | — | S 18 | SW 18 | — | SW 11 | — | — | — | — | — | — | — | S 8 | — | SSW 13 | SSW 13 | SSW 13 | SSW 13 | NW 9 | E 5 |
| kJ | — | 6 | 12 | — | 5 | — | — | — | — | — | — | — | 1 | — | 18 | 17 | 17 | 16 | 3 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 5 | SW 5 | WSW 7 | WSW 8 | WSW 8 | W 8 | W 8 | — | — | — | — | — | ESE 4 | ESE 5 | ESE 5 | — |
| kJ | — | — | — | — | 22 | 51 | 400 | 308 | 336 | 337 | 476 | — | — | — | — | — | 11 | 54 | 50 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 182 | 5 | 21 | 21 | 21 | 269 | 213 | 213 | 21 | 213 | 206 | 5 | 5 | 5 | 0 | 5 | 0 | 125 | 245 | 275 |
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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