Sennen Cove Surf Forecast and Surf Report

Alright folks, Rusty here. Let's get into it for Sennen Cove.

Straight up, the 16-day outlook is a bit of a grind. We’re looking at a long stretch of onshore winds and lumpy, choppy conditions that will make things tough. The good news is that towards the end of the first week, there’s a real standout window that will make it all worth it if you can get out.

The first few days are pretty rough. Wednesday the 2nd and Thursday the 3rd are a write-off with fresh cross-onshore winds and lumpy 5ft to 7ft WSW windswell. The wave energy is moderate though, hitting 355 to 532 on the 2nd. Friday the 4th is more of the same, with 7ft to 8ft W swell and moderate cross-onshore winds, keeping the surf poor. The energy kicks up a notch to 773-792 but with that wind, it’s just messy.

Then, we get a gift. Saturday morning, September 5th, is your window. The wind drops right out, going glassy from the south. That is a major positive. We’ve got a solid 6ft groundswell from the WNW with a very long 12-second period. The combined energy is 851. That long period means the waves will have real power and shape, but at a beach break like Sennen, it might wall up and close out a bit. Still, glassy conditions on a 6ft swell? That’s a proper session. For beginners, 6ft is a bit punchy, so take care, but the clean conditions will help. The water temp is about 64°F, which is pretty typical for this time of year (1°F anomaly), so no wetsuit surprises.

Saturday afternoon sees the breeze pick up to a gentle cross-shore, dropping the swell to 5ft. It’s still rideable, but not the peak of the day.

From Sunday the 6th through the entire second week, it’s a long, bleak run. The swell drops right off and the wind goes back onshore, often fresh to strong. There are a few pulses of bigger swell on the 7th and 8th (over 8ft with energy hitting 1175-1334) but they come with howling onshore winds, making it an expert-only, blown-out mess. We’ve got a 22-28 mph onshore wind on those days.

The rest of the window is small and wonky, with energy dropping below 500 from the 11th onwards. The 16th and 17th look particularly grim with gale-force winds and tiny waves. The setup on those big windy days at a beach break would be more interesting for a kite surfer than a paddle surfer.

Best bet: Hit it hard on Saturday morning, September 5th. That’s the standout. Everything else is a wait-and-hope situation, which for Sennen can be normal when the Atlantic winds don’t play ball.

Rusty.

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