Devonport Rivermouth Surf Forecast and Surf Report

Alright, let's talk turkey. This 16-day look at Devonport Rivermouth is mostly a bust, with only a couple of days that might get you out of bed. The rest is flat or junk. Here's the story.

Water temp is about 55°F, right on average for this time of year, so nothing wild there. But the surf? Barely there for the first week. Sunday the 30th of August starts with a 2ft WNW swell, period 5 seconds, and a light cross-off wind. Wave energy is a paltry 30—that's a lake. In the afternoon it bumps to 4ft, but the wind goes cross and energy hits 100. Still poor. Monday and Tuesday are even smaller, with swells down to 0.3ft and energy in the teens. Dead.

Wednesday the 2nd of September shows a pulse: 5ft from the NW, period 6 seconds, energy 153. But it's cross-shore wind at 15 mph, so it's lumpy. Afternoon gets to 6ft, energy 259, but the wind cranks to 18 mph and it's still cross-shore chop. Not great.

Now, Thursday the 3rd of September is the first real standout. Morning has 7ft WNW swell, period 8 seconds, and a solid 18 mph cross-off wind from the W. Energy is 522—moderate power. The wind keeps it clean. This is the best of the early run. Afternoon is similar at 6ft, energy 404, also clean. It's a point/river break, so that WNW is a good direction, but at 7ft, it's too big for beginners. This is for the experienced crew.

Friday the 4th of September drops hard. Swell is tiny at 1ft, but the period is a long 16 seconds—groundswell. Energy is 149 in the morning, but the wind is light cross, and by afternoon it's cross-on and choppy. Long period at a river mouth can be weird, so don't expect much.

Saturday the 5th of September is the next big day. Morning brings a 10ft NW swell, period 8 seconds, energy a massive 1137. Cross-off wind at 12 mph keeps it clean. But this is expert-only territory at nearly 10ft. Afternoon drops to 7ft, energy 602, still clean. Big swell, but tide and shape could be iffy.

Sunday the 6th of September is back to a 1ft groundswell (12-second period), energy 127, and light cross-off. Clean but tiny.

Here's the real gem: Tuesday the 8th of September. Morning is 10ft from the NNW, period 9 seconds, energy 1465—strong. Cross-off wind from the S at 15 mph keeps it clean. But the afternoon is the money: 7ft, period 9 seconds, energy 890, and the wind swings to SSW at 15 mph—true offshore. This is clean, powerful, and the best session on offer. For experts only, but it's a standout.

After that, from Wednesday the 9th of September through Monday the 14th of September, it's flat. Swells are under 2ft, with long periods but no energy. Winds are light or glassy, but there's nothing to ride. A long, dry spell through the second week.

Bottom line: Your best windows are Thursday the 3rd of September for a clean 7ft wave, and Tuesday the 8th of September for the biggest, cleanest offshore session. Everything else is a bust. Keep the board waxed, but don't rush.

Rusty.

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