Surf Forecasts:
Sennen Cove surf forecast from 9 Aug 2026:
- Best quality surf: Thursday 13 Aug, 1AM (local time) - 3.5ft (1.0m), 9s period, WSW swell with cross-offshore winds.
- Most powerful swell: Thursday 13 Aug, 10AM (local time) - 4.5ft (1.3m), 10s period, W swell with 374 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 4AM (local time) - 1.5ft (0.5m), 9s 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 Sunday (Aug 09) at 4AM. The primary swell is predicted to be 0.5m and 9s period. 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 1.3m 10s and forecast to arrive on Thursday (Aug 13) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Tuesday (Aug 11) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 9th Aug) | 1.5ft (0.5m) 9s |
| Best Surf | 1AM (Thu 13th Aug) | 3.5ft (1.0m) 9s |
| Most Powerful | 10AM (Thu 13th Aug) | 4.5ft (1.3m) 10s |
Table - best surf conditions forecast for Sennen Cove over the next 16 days.
The Lowdown
Alright folks, Rusty here, looking at the long-range picture for our little corner of the coast. We’ve got a pretty bleak run ahead, so don’t go getting your hopes up too high just yet.
Looking at the whole 16-day window, it’s a tough watch. The pattern is mostly small, weak swell and messy winds. There’s a stretch from the start all the way through to the morning of Monday, August 12th, where it’s basically flat or just junk. That’s about four days of nothing worth paddling out for. After that, we get a few little spikes of energy, but the wind just won't play ball, keeping things choppy and ordinary.
The only real window that might be worth a look is on Wednesday, August 21st over at Sennen Cove. We’ve got a bit of a pulse coming through with a moderate combined swell energy (370) and a 5ft swell from the WNW. The period is a decent 10 seconds, so there’s some push behind it. The wind is going to be a fresh cross-shore from the north at 18 mph, which isn't ideal but will keep it from being totally blown out. It’s not a standout by any stretch, just the least rubbish day on the board. The water temp is running a touch warmer than normal at 66°F for this time of year, so at least you won’t freeze waiting for a set.
Earlier in the week, Monday afternoon, August 12th shows a moment of glassy conditions at Sennen Cove, with a 3ft swell from the west and moderate wave energy (169). It’s the cleanest it will be, but the swell is small and the period is short at 9 seconds, so the waves will lack punch. It’s a beginner-friendly size, but you’ll be working hard for little reward.
For the rest of the forecast, it’s a lot of poor surf conditions. The swell tries to push up over 5ft around the 19th and 20th, but the cross-onshore wind makes a mess of it. There's nothing here for the experts, and the beginners won't find much to learn on either. It’s a waiting game.
Stay patient,
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 17°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Wed night, min 17°C on Fri morning). Wind will be generally light. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 9 | WNW 9 | WNW 9 | WNW 9 | NW 5 | WNW 8 | WNW 8 | WNW 8 | W 12 | W 11 | WSW 10 | W 9 | WSW 9 | W 10 | W 10 | W 10 | W 9 | W 8 | W 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 55 | 49 | 45 | 45 | 46 | 41 | 38 | 37 | 20 | 12 | 116 | 160 | 169 | 177 | 374 | 333 | 220 | 126 | 89 | 160 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | off | off | glassy | cross-off | cross | cross-on | on | on | on | cross-on |
High Tide | 1:48AM4.19m | 2:27PM4.36m | 3:04AM4.43m | 3:34PM4.73m | 4:05AM4.76m | 4:30PM5.13m | 4:57AM5.08m | 5:19PM5.49m | 5:44AM5.33m | 6:04PM5.72m | 6:27AM5.46m | 6:46PM5.79m | ||||||||
Low Tide | 7:41PM1.39m | 8:23AM1.34m | 9:07PM1.16m | 9:40AM1.06m | 10:17PM0.79m | 10:41AM0.69m | 11:13PM0.40m | 11:32AM0.36m | 00:01AM0.10m | 12:17PM0.12m | 00:45AM-0.07m | 12:59PM0.01m | 1:25AM-0.08m | |||||||
 |  |  | | | | | | | | | | | | | | |  | | | |
 | — | — | 6:01 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — |
 | 8:54 | — | — | 8:52 | — | — | 8:51 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 | — | — | 8:44 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 18 | 19 | 18 | 17 | 17 | 19 | 19 | 20 | 20 | 21 | 21 | 22 | 19 | 20 | 20 | 19 | 17 | 18 |
Feels °C | 16 | 18 | 17 | 17 | 16 | 16 | 13 | 16 | 16 | 16 | 17 | 20 | 20 | 19 | 16 | 18 | 19 | 19 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 5 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | ESE 6 | WSW 10 | W 9 | WSW 9 | W 10 | W 10 | W 10 | W 9 | W 8 | S 13 |
| kJ | 55 | 49 | 45 | 45 | 46 | 34 | 38 | 37 | 20 | 11 | 54 | 160 | 169 | 177 | 374 | 333 | 220 | 126 | 89 | 3 |
Swell 2 Height (m) Direction Period (s) | WSW 7 | SE 4 | ESE 4 | SW 6 | SW 7 | WNW 8 | WNW 5 | SW 6 | N 4 | W 9 | W 11 | SW 12 | E 7 | E 5 | ESE 5 | E 5 | E 5 | — | S 13 | S 13 |
| kJ | 5 | 4 | 1 | 6 | 15 | 41 | 9 | 7 | 3 | 7 | 116 | 6 | 42 | 14 | 9 | 8 | 2 | — | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | SW 11 | WSW 7 | WSW 6 | E 4 | — | SW 6 | SW 7 | W 10 | SW 6 | W 12 | WNW 7 | SW 6 | — | W 12 | — | S 11 | S 11 | S 13 | — | — |
| kJ | 5 | 4 | 4 | 1 | — | 14 | 16 | 8 | 6 | 12 | 10 | 1 | — | 47 | — | 2 | 2 | 3 | — | — |
Wind waves Height (m) Direction Period (s) | SE 4 | — | — | — | NW 4 | — | N 4 | N 4 | ESE 3 | ESE 4 | — | E 6 | — | NNE 2 | N 3 | NNW 3 | NNW 3 | — | — | W 8 |
| kJ | 10 | — | — | — | 12 | — | 9 | 9 | 3 | 25 | — | 32 | — | 1 | 3 | 3 | 1 | — | — | 160 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 16 | 0 | 390 | 206 | 206 | 5 | 206 | 0 | 374 | 206 | 0 | 0 | 0 | 0 | 5 | 206 | 5 | 5 | 206 | 180 |
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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