Belle Ile - Les Donnants Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s on the cards for Belle Ile - Les Donnants.

Right off the bat, we’ve got a quiet stretch to get through. The first few days (Thursday the 3rd and Friday the 4th) are pretty much a write-off with poor surf conditions and cross to onshore winds. The swell is small, around 3ft, and pretty weak, with combined energy sitting at just 138 on Thursday morning. The water temperature is 67°, which is a touch warmer than normal for this time of year, so that’s a nice bonus if you’re just paddling around.

The real standout comes on Saturday the 5th. This is the one to circle. Morning brings a clean 5ft swell from the WNW with a 12-second period, combined energy jumping to 505 – moderate energy, but the quality is there. The wind is offshore from the ENE, so it’s going to be clean. Then Saturday afternoon gets even better: glassy conditions with a light SSE breeze, 4ft from the WNW, and a 13-second period. That’s a long-period groundswell, and for a river break like this, it should line up nicely. The energy is 514. This is your best session of the whole outlook. Expect clean, well-shaped waves.

Sunday the 6th starts with a moderate offshore breeze from the east, but the swell drops to 3ft and the conditions are just ordinary. By the afternoon, it goes onshore and fades further. The rest of the first week into the second week is a bit of a mixed bag. Monday the 7th has a 4ft swell with a 13-second period, but the wind is onshore from the WNW, and the energy is high at 543, but it’s messy. Tuesday the 8th is also onshore and choppy. The swell is 5ft in the afternoon, but with onshore wind and a short 9-second period, it’s not going to be great.

The second week looks patchy. Wednesday the 9th has a cross-shore wind and a 5ft swell, but it’s short-period and marginal. After that, we get a few days of onshore wind and small swell, with a big gap of poor conditions. A few days later, on Tuesday the 15th of September, the afternoon session turns it around. A 4ft swell from the west, but with a *very long* 16-second period, combined energy at 643. The wind is cross-offshore from the NE, so it’s clean. That’s a promising one, but it’s a long way out, so keep an eye on it.

Then Wednesday the 16th of September morning offers another solid option: 5ft from the WNW with a 14-second period, offshore wind from the east, and energy at 811. That’s a proper swell. The afternoon goes onshore, so you’ll want to be out in the morning.

Overall, the clear winner is Saturday the 5th, with the glassy afternoon session. The long-range Tuesday the 15th and Wednesday the 16th mornings are also worth watching, but they’re a week and a half away, so don’t book the time off just yet.

Rusty.

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