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Surf Forecasts:
Sennen Cove surf forecast from 25 Aug 2026:
- Best quality surf: Friday 28 Aug, 10AM (local time) - 5ft (1.5m), 7s period, SSW swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 1PM (local time) - 11ft (3.5m), 10s period, WSW swell with 2,282 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 4PM (local time) - 2.5ft (0.7m), 10s period with WNW 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 Tuesday (Aug 25) at 4PM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.6m and 8s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Sennen Cove in the next 16 days are 3.5m 10s and forecast to arrive on Tuesday (Sep 01) at 1PM. 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 6s period and expected on Tuesday (Aug 25) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Tue 25th Aug) | 2.5ft (0.7m) 10s |
| Best Surf | 10AM (Fri 28th Aug) | 5ft (1.5m) 7s |
| Most Powerful | 1PM (Tue 1st Sep) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Sennen Cove over the next 16 days.
The Lowdown
Alright folks, Rusty here, and I’ve had a good look at what’s coming down the line for Sennen Cove. To be straight with you, it’s a bit of a rough run ahead. The first real sniff of a wave doesn't show up until Friday the 28th, so we’ve got a few days of small, wind-affected slop to sit through before anything worth paddling for.
The water is sitting at 64°, which is a touch warmer than usual for this time of year, but not wildly so. A nice bonus for the wait.
Let’s start with the bright spot. Friday morning, August 28th, is your best bet. We’ve got a clean 5ft swell from the SSW (period 7 seconds) pushing in with a light SE cross-offshore breeze. The combined energy (293) is moderate, so there’s enough there to get a ride. The sets will be a little short and punchy from that period, but with the wind cleaning it up, Sennen should be offering up some fun, lined-up peaks. It’s very consistent here, and the offshore wind is going to keep those faces smooth. Be aware, crowds are possible – it’s a popular spot when it’s clean.
The rest of the outlook is a bit of a write-off for paddle surfing. The wind just doesn’t play ball. From Saturday the 29th, the swell starts to get some real size – we’re seeing 8ft to 12ft from the SW and WSW, with strong wave energy (checking in at over 500 and climbing to 2500+). That’s some serious power, but it’s completely wasted. The wind is blowing onshore or cross-onshore and strong, making for lumpy, messy, and choppy conditions. Unless you’re into a real beat-down, don’t bother.
Later on, around Tuesday the 8th of September, the swell dips a bit, but the wind is still messy. There's a tiny window of light winds, but the forecast is marginal. Then by Wednesday the 9th of September, it’s back to a massive 12ft swell with onshore wind – that’s big, unruly, and blown out.
Honestly, for a few days there with the big, bumpy, onshore swell, this setup looks more interesting for kite surfing than paddle surfing. It’s a lot of wind and a lot of moving water, but for a surfer, it’s a no-go.
So to wrap it up: bank on that Friday morning session. It’s the only one that’s clean and surfable. After that, you’re better off watching the chaos from the cliff.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Wed night. Very mild (max 19°C on Wed afternoon, min 17°C on Tue morning). Winds increasing (light winds from the S on Tue night, fresh winds from the SW by Thu morning). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Fri night. Very mild (max 19°C on Fri morning, min 16°C on Sun night). Winds increasing (light winds from the SE on Fri morning, near gales from the WNW by Sun night). | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | WNW 10 | WNW 10 | W 9 | W 8 | W 8 | W 8 | SW 6 | SW 7 | WSW 7 | SSW 7 | SSW 6 | WSW 6 | WSW 7 | WSW 8 | W 9 | W 9 | WSW 7 | W 8 | W 8 | W 8 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 78 | 100 | 79 | 49 | 44 | 28 | 170 | 261 | 105 | 243 | 113 | 245 | 543 | 672 | 1172 | 413 | 520 | 1529 | 790 | 643 | 618 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross | cross-off | off | cross-on | cross-on | cross | cross-off | on | cross-on | on | on | cross-on | cross | cross-on | on | on | on | on |
High Tide | 4:13PM4.36m | 4:33AM4.37m | 4:50PM4.72m | 5:08AM4.68m | 5:23PM5.04m | 5:40AM4.95m | 5:55PM5.29m | 6:12AM5.17m | 6:27PM5.47m | 6:44AM5.30m | 7:00PM5.53m | 7:18AM5.34m | 7:35PM5.49m | ||||||||
Low Tide | 10:16AM1.37m | 10:43PM1.15m | 10:56AM1.03m | 11:20PM0.82m | 11:32AM0.72m | 11:55PM0.54m | 12:05PM0.48m | 00:28AM0.33m | 12:38PM0.32m | 1:00AM0.21m | 1:11PM0.25m | 1:33AM0.20m | 1:45PM0.28m | 2:07AM0.30m | |||||||
 |  |  |  | |  | |  | | | | | | |  |  |  | | | | | |
 | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — |
 | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — | — | 8:09 | — |
mm | 1 | — | — | — | — | 9 | — | — | — | — | — | 3 | — | — | — | 1 | 2 | — | — | 1 | 2 |
Temp °C | 18 | 18 | 18 | 18 | 19 | 18 | 18 | 18 | 18 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 |
Feels °C | 14 | 16 | 18 | 18 | 18 | 16 | 12 | 14 | 15 | 16 | 15 | 14 | 13 | 13 | 13 | 14 | 12 | 10 | 10 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | W 9 | W 8 | W 8 | W 8 | E 5 | WNW 10 | WSW 7 | SSW 7 | SSW 6 | — | S 8 | S 8 | W 9 | W 9 | — | — | — | NNW 6 | N 5 |
| kJ | 78 | 100 | 79 | 49 | 44 | 28 | 12 | 52 | 105 | 243 | 113 | — | 12 | 5 | 1172 | 413 | — | — | — | 10 | 2 |
Swell 2 Height (m) Direction Period (s) | SSW 9 | SSW 8 | E 6 | SW 7 | N 5 | SSW 6 | WNW 10 | ESE 5 | WNW 9 | WNW 9 | W 8 | — | — | — | — | — | — | — | — | — | S 18 |
| kJ | 29 | 46 | 24 | 14 | 4 | 13 | 20 | 8 | 49 | 45 | 66 | — | — | — | — | — | — | — | — | — | 6 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | NNE 5 | SSW 8 | N 5 | SSW 7 | SW 12 | WNW 8 | SW 12 | SE 4 | SW 12 | SW 11 | — | — | — | — | — | — | — | — | — | — |
| kJ | 17 | 9 | 36 | 4 | 9 | 6 | 7 | 6 | 1 | 5 | 5 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 7 | E 6 | — | SSE 4 | SSE 4 | E 5 | SW 6 | SW 7 | SSW 7 | — | — | WSW 6 | WSW 7 | WSW 8 | — | SSW 7 | WSW 7 | W 8 | W 8 | W 8 | WSW 8 |
| kJ | 310 | 116 | — | 3 | 5 | 71 | 170 | 261 | 82 | — | — | 245 | 543 | 672 | — | 116 | 520 | 1529 | 790 | 643 | 618 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 52 | 0 | 0 | 5 | 120 | 372 | 240 | 21 | 21 | 0 | 94 | 213 | 240 | 215 | 21 | 21 | 275 | 716 | 506 | 506 | 190 |
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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