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Surf Forecasts:
Sennen Cove surf forecast from 7 Sep 2026:
- Most powerful swell: Monday 7 Sep, 7AM (local time) - 7.5ft (2.3m), 14s period, W swell with 1,923 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 14s and forecast to arrive on Monday (Sep 07) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Mon 7th Sep) | 7.5ft (2.3m) 14s |
Table - best surf conditions forecast for Sennen Cove over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get stuck into what's on the table for this stretch. The long-range picture for Sennen Cove is a bit of a mixed bag, and to be honest, you'll be working for your waves for most of it. There's a solid run of onshore winds and messy conditions that'll test your patience, but there is a glimmer of something special if you can wait it out.
Right off the bat, we've got a sizeable 8ft swell from the west (1821 combined energy) rolling in on the 7th, but that strong west-northwest wind is blowing straight onshore. It's just one of those days where the ocean has all the energy but none of the shape – a real struggle, to be honest. That pattern pretty much sticks through until the 14th. The swell sticks around, tops out near 7ft, but those winds keep flipping between cross-onshore and onshore. This lot is not for beginners, and even seasoned surfers will be battling chop. There's a real gap in quality here.
Then, on the morning of the 15th, it flips. The wind drops away to practically nothing, leaving us with glassy conditions. That's a major positive. And the ocean delivers: a 7ft groundswell from the west-northwest, with a long 12-second period (1386 combined energy). This will have some serious push to it. Now, that long period combined with a beach break like Sennen can mean those sets stand up a bit straight, but the quality of the wave energy and the absolute mirror-like surface means the standout sets will be proper. This is the one to pencil in – a definite day for the experienced surfer.
After that brief hit of quality, it all goes a bit pear-shaped again. From the 16th onwards, the winds crank up, particularly a strong southwesterly on the 16th and 17th, bringing in a massive 15ft swell (4589 combined energy) on the 17th. But it's accompanied by strong onshore winds and rain. That's big-water territory only, and even then, it's going to be a washing machine. This onshore trend looks set to keep things messy right through the weekend of the 20th and into the next week, with big, lumpy, wind-affected swell in play. The morning of the 22nd shows a glimmer of hope with a clean cross-offshore wind (30 km/h), but the swell is a mixed 7ft from the west with a short period – it might be clean, but it won't have the same punch as what we saw on the 15th.
Get on that glassy morning of the 15th, because that's your one true standout in this forecast.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Mon night. Very mild (max 19°C on Sun night, min 14°C on Mon night). Winds decreasing (strong winds from the NW on Tue morning, light winds from the WNW by Wed afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Thu night. Very mild (max 18°C on Thu night, min 16°C on Wed night). Winds decreasing (fresh winds from the SW on Thu night, light winds from the NW by Fri night). | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 13 | W 12 | W 10 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WSW 7 | WSW 6 | W 10 | WSW 9 | WSW 8 | W 8 | W 10 | W 7 | W 9 | W 9 | W 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1810 | 1292 | 1046 | 606 | 741 | 1023 | 462 | 280 | 111 | 62 | 92 | 767 | 408 | 229 | 115 | 230 | 366 | 586 | 375 | 157 | 190 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 2:23PM4.30m | 3:02AM4.33m | 3:28PM4.72m | 3:58AM4.72m | 4:20PM5.15m | 4:45AM5.08m | 5:03PM5.49m | 5:26AM5.36m | 5:44PM5.69m | 6:04AM5.51m | 6:21PM5.74m | 6:40AM5.52m | 6:58PM5.63m | ||||||||
Low Tide | 8:23AM1.43m | 9:08PM1.15m | 9:35AM1.08m | 10:10PM0.73m | 10:30AM0.67m | 11:00PM0.35m | 11:16AM0.34m | 11:42PM0.08m | 11:56AM0.11m | 00:20AM-0.05m | 12:34PM0.02m | 00:56AM-0.03m | 1:09PM0.07m | 1:29AM0.13m | |||||||
 | |  |  | |  | | |  |  | |  | | | | | | | | | | |
 | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — |
 | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — |
mm | — | — | 19 | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 17 | 17 | 18 | 17 | 17 | 16 | 17 | 18 | 19 | 18 | 19 | 19 |
Feels °C | 12 | 14 | 11 | 8 | 8 | 8 | 10 | 14 | 14 | 12 | 12 | 15 | 16 | 15 | 16 | 13 | 14 | 17 | 17 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | W 13 | W 12 | SW 12 | WSW 10 | WSW 9 | — | WNW 10 | WNW 9 | WNW 9 | WNW 8 | WSW 7 | W 10 | WSW 9 | WSW 8 | W 8 | W 10 | WNW 13 | W 9 | W 9 | W 8 | WNW 11 |
| kJ | 1810 | 1292 | 5 | 169 | 86 | — | 462 | 280 | 111 | 37 | 18 | 767 | 408 | 229 | 115 | 230 | 90 | 586 | 375 | 157 | 66 |
Swell 2 Height (m) Direction Period (s) | S 12 | SW 12 | SW 12 | SW 11 | SSW 10 | — | WSW 9 | N 6 | WSW 8 | N 6 | W 11 | — | — | S 16 | WNW 7 | WNW 14 | S 15 | S 14 | SW 13 | WNW 12 | S 13 |
| kJ | 11 | 5 | 5 | 5 | 10 | — | 116 | 44 | 50 | 6 | 9 | — | — | 5 | 5 | 37 | 4 | 4 | 7 | 125 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 8 | N 6 | W 12 | N 5 | — | — | — | WNW 10 | S 15 | S 15 | — | SW 13 | SW 13 | — |
| kJ | — | — | — | — | — | — | — | 71 | 28 | 10 | 2 | — | — | — | 10 | 4 | 4 | — | 7 | 7 | — |
Wind waves Height (m) Direction Period (s) | — | — | W 10 | WNW 9 | WNW 9 | WNW 9 | N 6 | — | — | WSW 7 | WSW 6 | — | — | — | — | WSW 4 | W 7 | — | — | — | W 8 |
| kJ | — | — | 1046 | 606 | 741 | 1023 | 53 | — | — | 62 | 92 | — | — | — | — | 24 | 366 | — | — | — | 190 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 45 | 21 | 21 | 196 | 206 | 137 | 5 | 5 | 21 | 21 | 184 | 57 | 5 | 45 | 5 | 21 | 184 | 21 | 206 | 184 | 21 |
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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