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Surf Forecasts:
Sennen Cove surf forecast from 21 Aug 2026:
- Best quality surf: Saturday 22 Aug, 7AM (local time) - 1.5ft (0.5m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 4PM (local time) - 7ft (2.1m), 8s period, SSW swell with 536 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 7AM (local time) - 1.5ft (0.5m), 10s 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 (Aug 22) at 7AM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.6m and 5s. Another secondary swell of 0.5m and 6s is also forecast. 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 2.1m 8s and forecast to arrive on Wednesday (Aug 26) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 7s period and expected on Tuesday (Aug 25) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 22nd Aug) | 1.5ft (0.5m) 10s |
| Best Surf | 7AM (Sat 22nd Aug) | 1.5ft (0.5m) 10s |
| Most Powerful | 4PM (Wed 26th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Sennen Cove over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this is a grim stretch ahead for Sennen Cove. The next two weeks are basically a write-off. We’re looking at day after day of poor surf conditions, with only a few fleeting moments that are barely worth paddling out for. The run of blank days is long, extending from now through the entire forecast period, with barely a glimmer of anything decent.
The only time that even comes close to being worth a mention is Saturday morning, the 22nd of August. It’s not a standout by any stretch, but it’s the best we’ve got. The wind is light offshore from the east at 15 km/h, which will leave the surface clean. You’ll be looking at small 2 ft waves from the west with a modest 9-second period. The combined energy is weak (113). It’s beginner-friendly, consistent, and the crowds are only sometimes around. The water temperature is about what you’d expect for this time of year – nothing unusual.
Outside of that, the first week is a mess. Friday the 21st is a total loss with a fresh cross-shore wind from the north at 30 km/h and lumpy chop. Sunday the 23rd is clean but tiny – 1 ft from the southwest with a long 14-second period, which is a groundswell but so small it’s pointless. Monday the 24th sees strong offshore winds from the east at 40 km/h, making it clean but impossible to paddle into with only 1.0 ft of swell. Tuesday the 25th is clean but again tiny and weak.
Things get uglier from Wednesday the 26th. A stormy pattern kicks in with a 5 ft swell from the south, but the period is just 6 seconds – short and weak energy (196). The wind turns cross-shore and then cross-onshore, and by Thursday the 27th we’ve got messy, choppy conditions. The weekend of the 29th and 30th sees solid 8 ft swell from the west, but it’s onshore wind and blown out. That’s kite-surfing territory, not for paddling. The second week starts with more onshore wind and poor conditions, tapering off into tiny, weak swell by the 1st of September.
The final few days of the forecast show a little clean-up on the 4th and 5th of September, but with 1.0 ft to 4 ft of weak, short-period swell, it’s just not happening. Bottom line: if you’re desperate, the only half-decent window is early on Saturday the 22nd. Otherwise, save your energy.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Thu night. Very mild (max 17°C on Thu night, min 15°C on Thu night). Winds decreasing (fresh winds from the N on Fri morning, light winds from the ENE by Sun afternoon). | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Tue night. Warm (max 20°C on Tue afternoon, min 17°C on Sun night). Winds increasing (light winds from the ENE on Sun night, near gales from the ESE by Mon night). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 | WNW 8 | WNW 8 | N 6 | W 9 | SW 15 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 13 | WNW 11 | WNW 10 | W 9 | W 9 | S 6 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | W 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 225 | 147 | 48 | 42 | 40 | 54 | 51 | 56 | 51 | 36 | 34 | 23 | 56 | 44 | 41 | 151 | 536 | 402 | 294 | 249 | 440 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 11:34AM3.72m | 00:17AM3.56m | 1:05PM3.59m | 1:52AM3.54m | 2:30PM3.72m | 3:04AM3.75m | 3:29PM4.01m | 3:54AM4.05m | 4:13PM4.36m | 4:33AM4.37m | 4:50PM4.72m | 5:08AM4.68m | 5:23PM5.04m | ||||||||
Low Tide | 5:25AM1.74m | 6:02PM1.84m | 6:37AM1.94m | 7:29PM1.95m | 8:09AM1.93m | 8:57PM1.80m | 9:24AM1.70m | 9:59PM1.50m | 10:16AM1.37m | 10:43PM1.15m | 10:56AM1.03m | 11:20PM0.82m | 11:32AM0.72m | 11:55PM0.54m | |||||||
 |  |  | | | | | |  |  |  | |  | |  |  | | | | |  | |
 | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — |
 | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — |
mm | 2 | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 10 | 2 | 2 | 6 | 2 | 2 | 16 |
Temp °C | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 20 | 19 | 18 | 18 | 18 | 18 | 18 | 18 |
Feels °C | 9 | 9 | 11 | 14 | 15 | 13 | 16 | 16 | 14 | 11 | 10 | 11 | 16 | 16 | 17 | 13 | 11 | 13 | 14 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | W 9 | WNW 8 | WNW 8 | N 6 | N 5 | W 9 | N 4 | WSW 12 | SW 10 | SW 9 | SSW 13 | WNW 11 | E 7 | E 7 | W 9 | W 9 | SW 12 | W 8 | W 8 | W 8 | SW 12 |
| kJ | 225 | 147 | 44 | 38 | 28 | 14 | 9 | 56 | 46 | 13 | 34 | 23 | 277 | 58 | 41 | 39 | 6 | 160 | 103 | 57 | 5 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | W 9 | WNW 6 | E 4 | SW 15 | SW 14 | N 4 | SW 14 | SSW 14 | SW 9 | SSW 13 | WNW 10 | W 9 | SW 8 | E 5 | SW 12 | SW 12 | SW 12 | W 10 | S 12 |
| kJ | 17 | 17 | 38 | 33 | 13 | 54 | 51 | 6 | 51 | 36 | 13 | 17 | 56 | 44 | 31 | 2 | 6 | 6 | 6 | 51 | 3 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 16 | W 9 | W 9 | WNW 7 | W 9 | SW 14 | W 9 | N 4 | W 9 | SW 9 | SW 8 | SW 8 | E 6 | SW 12 | — | — | — | S 12 | — |
| kJ | 25 | 25 | 48 | 42 | 40 | 4 | 13 | 49 | 2 | 1 | 6 | 12 | 18 | 17 | 12 | 6 | — | — | — | 3 | — |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 5 | — | — | NE 5 | E 4 | ESE 5 | E 5 | ESE 6 | ESE 6 | E 7 | — | SSE 4 | S 5 | S 6 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | W 7 |
| kJ | 67 | 46 | 24 | — | — | 31 | 6 | 14 | 16 | 143 | 319 | 602 | — | 25 | 28 | 151 | 536 | 402 | 294 | 249 | 440 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 117 | 228 | 18 | 0 | 0 | 18 | 18 | 0 | 16 | 356 | 194 | 216 | 184 | 184 | 28 | 250 | 184 | 21 | 21 | 372 | 80 |
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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