Belle Ile - Les Donnants Surf Forecast and Surf Report

G’day, Rusty here. I’ve looked over the next 16 days for Belle Ile - Les Donnants, and truth be told, it’s a bit of a rough stretch. We’ve got some solid swell pulses rolling in, but the wind just won’t play ball for most of it. The water temp is sitting at 67°F, which is pretty much normal for this time of year, so no surprises there.

It kicks off this weekend, and it’s a write-off. Saturday the 29th sees a chunky 10ft swell from the WSW, but it’s getting smashed by a strong cross-onshore breeze at 28 mph. The combined energy is high at 1005, but with conditions that messy, it’s a hard pass. Sunday the 30th isn’t much better—7ft from the WSW with a fresh cross-onshore and lumpy conditions. Not worth paddling out.

Monday the 31st brings 8ft from the West, but the wind is onshore all day, and the surf is messy. The energy drops off but still over 700. No good.

Now, here’s the one real standout in the entire outlook. Tuesday, the 1st of September, early morning. The swell drops to 4ft from the West, but the wind swings to a light NE offshore breeze at just 3 mph. That’s glassy, clean conditions, and the combined energy is still a moderate 246. This is your window. The sets will be a bit inconsistent, but with offshore wind, it’ll be peeling nicely at this river mouth setup. For beginners, it’s a bit on the smaller side but very doable. Later that afternoon, the wind turns onshore again and it’s over.

After that, we hit a massive gap. From Tuesday afternoon right through to the 13th of September, the surf is either too small or completely wind-affected. The swell tries to kick back up mid-week, but it’s always cross-onshore or onshore. By the 5th and 6th, we see 4ft from the WNW with periods around 10 seconds, but the wind is all wrong. There’s a brief nod to the 9th of September Wednesday morning—only 2ft and a clean cross-offshore breeze. The energy is weak at 73, but you could get a few tiny, clean ones if you’re desperate.

The end of the run, around the 13th of September, has a very long-period 16-second groundswell from the WSW, but the swell height is tiny at 2ft. The energy is moderate at 381, and with that period, it’s more of a glassy bump than a proper wave at this river break. The wind is onshore anyway.

Overall, the only true standout is Tuesday morning, the 1st of September. Get out early for clean, waist-high waves with offshore wind. The rest of the 16 days is a survival mission—more of a kite session than a paddle, given the strong winds and choppy conditions.

Rusty.

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