Guethary - Les Alcyons/Avalanche Surf Forecast and Surf Report

Right then, let’s have a look at what’s on offer here.

We’re looking at the next 16 days, and to be honest, the start is a bit of a slow burner. The first real standout doesn’t appear until the 1st of September, and even then, it’s a very specific window. The first few days have some small waves, but nothing worth getting excited about. There’s a gap of a couple of days with no real recommendations in the middle, but the back half of the period starts to show some promise.

The main event, and the one you need to circle, is Guethary - Les Alcyons/Avalanche on the morning of the 1st of September. This is an expert-only reef break, and it’s consistent. We’ve got a solid NW swell coming in at 5 ft with a 10-second period, and the combined energy is a solid 400. That’s a moderate wave energy, but it’s got some push. The wind is a light cross-offshore breeze from the ENE, which is going to keep it clean. The water temperature is sitting at 75°, which is a notable 5° warmer than usual for this time of year. If you’re an expert, this is the session to chase. The afternoon sees the wind swing onshore, so it’s a morning-only mission.

Moving on, there’s a bit of a lull. The morning of the 6th of September (Sunday) sees another decent window. We’ve got 4 ft from the NW with an 11-second period and a clean offshore wind from the SE. The combined energy is 399. This is another good, clean option for the experts, but with the wind being offshore, it’s going to be a fun one. The 8th of September (Tuesday) morning is also worth a mention, with a glassy 3 ft wave from the WNW, a 10-second period, and 216 combined energy. It’s a bit smaller, but glassy conditions are always a treat.

Then, the 10th of September (Thursday) morning is another standout. We’re back to 5 ft from the NW, a 10-second period, and a combined energy of 388. The wind is glassy from the NNE. This is another clean, punchy session for the experts.

The 11th of September (Friday) afternoon is a sneaky one. The swell is 4 ft from the NW, but the wind goes glassy from the west. The combined energy is 202. A bit smaller, but glassy conditions at this reef are always worth a look.

The 12th of September (Saturday) morning is possibly the best of the second week. 4 ft from the NW, a 9-second period, and a combined energy of 429. The wind is glassy from the east. This is a solid, clean session with good energy. The afternoon gets messy with a cross-onshore wind, so again, morning is the key.

For the rest of the period, things drop off into small and poor conditions. The 13th of September morning is surfable but ordinary, with a glassy 3 ft wave. After that, it’s mostly small and unsurfable.

So, the takeaway: The best bets are the mornings of the 1st, 6th, 10th, and 12th of September. For an expert reef break, these are clean, punchy windows. The 12th of September morning is the standout of the second week, but it’s a long-range call, so keep an eye on it. The water is warmer than usual, so you might not need the thickest wetsuit.

Rusty.

Read more