Belle Ile - Les Donnants Surf Forecast and Surf Report

Alright, Rusty here. Let’s talk about what’s on offer for Belle Ile - Les Donnants. This is a river mouth setup, so it’s a bit different from your standard beach break. The water’s sitting at 68°F, which is about a degree and a half warmer than usual for this time of year – nothing crazy, just a nice little bonus.

Right now, and for the first week, the honest truth is there’s hardly anything to get excited about. The swell is tiny, mostly around 0.7ft to 1ft from the west-northwest, with weak energy readings (22 to 45). The mornings are clean with a moderate offshore breeze, but the swell just isn’t there. By the afternoons, the wind swings onshore and it gets messy. It’s a frustrating stretch of flat-to-poor conditions.

We’re looking at a real gap here. The first glimmer of something worthwhile doesn’t show up until the morning of Saturday, August 15th. Even then, it’s only a 3ft swell from the west-northwest with a period of 8 seconds, giving a moderate energy of 113. The wind is a gentle cross-offshore breeze, keeping it relatively clean. The notes say “surfable waves but very ordinary conditions,” so it’s a paddle for the sake of it, not a session to remember.

The real standout, the one that makes you mark your calendar, is the morning of Tuesday, August 18th. The swell picks up to 5ft from the west-northwest with an 8-second period, and the energy jumps to a solid 264. The wind is blowing offshore from the east at 12 mph, which means clean, lined-up waves. This is the best on offer in the whole 16-day window.

The following morning, Wednesday, August 19th, is also promising. You’ve got a 5ft swell from the west-northwest with a light offshore breeze from the northeast. The energy is strong at 286. It’s a little bigger and the wind is lighter, so it could be just as good, if not a touch more powerful. Just keep in mind the swell period is 8 seconds, so it’s a shorter-period wind swell, not a groundswell.

After that, the quality drops off again. The swell gets bigger, but by Saturday, August 22nd, it’s over 7ft with a strong breeze making it choppy and cross-onshore. That’s expert-only territory and not really worth it given the wind. For the rest of the time, the conditions are generally poor, with onshore winds and messy surf.

So, to sum it up: the first week is a write-off. The best window is the morning of Tuesday, August 18th, with a close second on Wednesday, August 19th. After that, it’s back to waiting.

Rusty.

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