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Surf Forecasts:
Sennen Cove surf forecast from 6 Sep 2026:
- Best quality surf: Friday 11 Sep, 4PM (local time) - 4.5ft (1.3m), 8s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 7AM (local time) - 7.5ft (2.3m), 14s period, W swell with 1,923 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 4PM (local time) - 4.5ft (1.3m), 8s period with WSW 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 Friday (Sep 11) at 4PM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.1m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
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. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Sep 06) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Fri 11th Sep) | 4.5ft (1.3m) 8s |
| Best Surf | 4PM (Fri 11th Sep) | 4.5ft (1.3m) 8s |
| 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, let's talk Sennen Cove. It's a frustrating picture for the first week or so, to be honest. We've got a lot of swell coming in, but the wind is just hammering it, making a mess of everything. This spot is a very consistent, exposed west-facing beach, so it sees plenty of action, but it needs the wind to play ball. The water temp is about 62°F, which is a touch warmer than usual for the season, so you might not need your thickest rubber.
The first real chance of something decent is late on Friday, September 11th. The morning is still a bit lumpy, but by the afternoon the wind turns light and cross-offshore from the ESE, cleaning things right up. You'll be looking at surf around 4ft from the WSW with a 8-second period, and the combined wave energy is weak at 226. It's not big, but it'll be clean and fun for a log or a fish. Crowds are possible here, but on a Friday with that size, it shouldn't be too packed.
After that, we're back into a messy spell until we get to the real standout window. Mark Saturday, September 19th in your calendar. The morning is looking clean with a cross-offshore breeze from the NE and 6ft of west swell. The wave energy is moderate at 626. But the afternoon is the one. The wind drops to a light cross-offshore breeze, the surf drops a touch to 5ft but the period stretches out to 11 seconds, giving the waves some real shape and push. The energy is still moderate at 574, and the forecast is for very good surf. This is the cleanest, best-shaped window of the whole outlook.
Then Sunday, September 20th, is also worth a look for the more experienced surfer. The swell jumps to 8ft from the west with an 11-second period, and the energy is strong at 1286. The wind is a fresh cross-offshore from the ESE, so it should be clean again. But at that size, it's not a day for beginners, and the long period will make it powerful and a bit shifty on the beach.
So, to wrap it up: the first week is a write-off. The 11th of September gives you a small, clean session late in the day. Your absolute best bet is the afternoon of Saturday the 19th of September, with clean, fun surf. Sunday the 20th offers bigger, clean waves for the experts. Be patient, the end of the second week is where it's at.
Rusty
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Very mild (max 19°C on Sun afternoon, min 15°C on Mon night). Winds increasing (light winds from the SW on Sun afternoon, strong winds from the WSW by Mon night). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Very mild (max 18°C on Fri afternoon, min 15°C on Wed night). Winds decreasing (fresh winds from the SSW on Wed night, light winds from the ESE by Fri night). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 9 | W 9 | WSW 16 | W 13 | W 12 | W 10 | W 9 | W 9 | WNW 9 | WNW 9 | W 8 | W 9 | WSW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 8 | W 8 | W 8 | W 8 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 106 | 74 | 446 | 1810 | 1174 | 1386 | 885 | 777 | 1070 | 732 | 412 | 230 | 214 | 494 | 506 | 329 | 216 | 121 | 95 | 784 | 861 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | cross-on | cross | cross-off | cross-off | cross-on | on | on |
High Tide | 12:55PM4.05m | 1:45AM4.01m | 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 | ||||||||
Low Tide | 7:44PM1.46m | 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 | ||||||||
 |  |  | |  |  | | | | | |  | | | |  | | | | |  | |
 | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — |
 | — | 7:57 | — | — | 7:54 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — |
mm | — | — | — | — | — | 4 | — | — | — | — | — | 1 | — | — | 1 | 1 | — | — | — | — | — |
Temp °C | 18 | 19 | 19 | 16 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 17 | 17 |
Feels °C | 14 | 18 | 18 | 12 | 13 | 10 | 10 | 9 | 8 | 10 | 12 | 13 | 12 | 16 | 14 | 16 | 18 | 18 | 15 | 13 | 16 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | WSW 16 | W 13 | W 12 | SW 12 | SW 11 | SW 11 | — | — | W 8 | N 6 | WNW 8 | N 6 | WSW 9 | WSW 9 | WSW 8 | W 8 | W 8 | WNW 13 | W 10 |
| kJ | 106 | 74 | 446 | 1810 | 1174 | 5 | 5 | 5 | — | — | 412 | 16 | 27 | 1 | 506 | 329 | 216 | 121 | 95 | 67 | 861 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 12 | W 9 | S 12 | SW 12 | — | SW 11 | SW 11 | — | — | N 6 | WSW 8 | N 6 | — | — | — | S 16 | S 5 | WNW 10 | S 15 | S 14 |
| kJ | 16 | 15 | 95 | 11 | 5 | — | 5 | 5 | — | — | 30 | 23 | 6 | — | — | — | 5 | 8 | 80 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | W 20 | W 11 | — | — | — | — | — | — | — | — | W 13 | W 12 | — | — | — | S 16 | W 13 | S 15 | — | — |
| kJ | — | 7 | 84 | — | — | — | — | — | — | — | — | 3 | 11 | — | — | — | 5 | 3 | 4 | — | — |
Wind waves Height (m) Direction Period (s) | SSE 4 | SSE 4 | WSW 3 | — | — | W 10 | W 9 | W 9 | WNW 9 | WNW 9 | — | W 9 | WSW 7 | WSW 8 | — | — | — | — | SW 4 | W 8 | — |
| kJ | 35 | 16 | 4 | — | — | 1386 | 885 | 777 | 1070 | 732 | — | 230 | 214 | 494 | — | — | — | — | 27 | 784 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 158 | 21 | 21 | 45 | 94 | 213 | 206 | 206 | 206 | 206 | 380 | 213 | 213 | 5 | 21 | 21 | 0 | 0 | 57 | 240 | 20 |
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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