J-Bay Surf Forecast and Surf Report

Alright, Rusty here. Let’s get into it.

We’ve got a real mixed bag coming up for J-Bay. The opening window is the standout, but after that, it gets messy for a long stretch. Monday morning, the 31st of August, is the go. The water is a frigid 59.4°, which is a massive 6.5° colder than normal for this time of year – that’s seriously unusual, so you’ll want a thick suit. The swell is a solid 6.2ft from the SW with a 12-second period, giving it proper groundswell power. The combined energy is a beefy 1091 (moderate energy), but the real kicker is the glassy, light S wind at 5 km/h (3.1 mph). That’s going to leave the waves clean and lined up. This is an intermediate-level wave, but with that size and a bit of juice, it’s excellent for experienced surfers. The water is much colder than normal, so be ready for that.

The pattern shifts fast. By Monday afternoon, the wind swings cross-on and the quality drops. Tuesday the 1st of September has a bigger 7.5ft SW swell (12 sec, 1553 energy), but the wind is cross-on, killing the shape. That continues through Wednesday the 2nd, where the swell builds to a solid 9.8ft (13 sec, 3415 energy) – that’s getting into expert-only territory – but the wind is cross-shore, not clean. Thursday the 3rd has onshore wind and rain. From Friday the 4th right through to Wednesday the 9th of September, the wind is a nightmare: strong onshore and cross-onshore, blowing at 15.5 to 25 mph. The swell stays big, from 11.5ft to 6.6ft, but the quality is poor, with strong, lumpy conditions. This is a long gap of basically no surf worth paddling for.

Then, on Thursday the 10th of September, we get a flicker of hope. The morning is glassy again with a light WSW wind, and the swell drops to 3.9ft from the E, with a 9-second period. The combined energy is low at 373 (weak), but the conditions are clean. It’s a small, glassy day – a good option for a longboard or a fun session if you’re keen. Friday the 11th goes back to onshore, and that’s it for the window. The 12th and 13th of September are messy, with a small SW swell and strong cross-onshore winds. The 14th has a bit more size (6.9ft, SW, 11 sec) with a cleaner cross-off wind, but it’s a marginal call. Tuesday the 15th of September sees a massive 16.4ft S swell (10 sec, 5223 energy – very strong) but with onshore winds, so that’s a guaranteed no-go for paddle surfing. That’s a kite surfer’s dream, not ours.

So, the clear standout is Monday morning, the 31st of August. The best bet is J-Bay itself, with that 6.2ft SW groundswell and glassy conditions. It’s clean, has power, and the consistency is there. The second-best is Thursday morning, the 10th of September, for a small, clean glassy session. The rest of the 16 days is a write-off for clean waves.

Read more