Prainha Surf Forecast and Surf Report

G’day, this is Rusty. Look, I’ll be straight with you: the next two weeks at Prainha are mostly a flat, quiet story with a couple of short windows that might get you wet. We’re looking at a lot of small, weak swell and onshore muck, but there is one morning that stands out as your best bet in the whole 16-day run.

The first proper surf worth paddling for is Friday 28 August, but don’t get too excited. It’s small – only 4 ft from the east with a short 8-second period. The real magic that morning is the glassy conditions – NNW wind at 3 mph, dead clean. The combined energy is moderate (189), nothing to write home about, but it’s smooth and rideable. Water temp is 68°, about 2° warmer than usual for this time of year, so it’s a touch on the warm side. That session is as good as it gets for the first week.

Friday afternoon goes bad fast – cross-on chop and poor conditions. Saturday morning the 29th is clean but cross-off, and the swell drops to 3 ft. By Sunday the 30th we’re down to 2 ft, just straggly little waves. Monday the 31st sees a tiny pulse – 3 ft to 3 ft, period still only 8 to 9 seconds – but you’ll get a glassy morning and a glassy afternoon with wind swinging offshore and then dead calm. Still, it’s ordinary wave quality.

The first real standout hits on Wednesday 2 September. That morning is the pick of the entire forecast: 3 ft from the southeast, but check out that period – 12 seconds, proper groundswell energy. Combined energy jumps to 288 (moderate, but well above the rest). The wind is glassy out of the SSW at 3 mph. It’ll be clean, lined up, and much more powerful than the earlier slop. For a spot that’s exposed like Prainha (advanced, very consistent, takes south swells optimum), this is your morning. Just be aware it’s a beach setup, so that long period might make it a bit straight, but with such light wind, you’ll get some nice walls.

From there, it fades again. Thursday the 3rd has a small 2 ft, and by the 4th and 5th we’re down to 1.0 ft to 2 ft – basically flat. There’s a gap of several days with no real recommendations. Then around Monday 7 September, we get another spike: 3 ft from the southeast but now with a 14-second period – very long period groundswell. Combined energy hits 303 early (moderate strong), and the wind is cross-off from the NW at 3 mph. Could be fun for experienced surfers, but that long period on a beach break might make it tricky: long waits, fast walls. The afternoon turns cross-shore and marginal.

After that, it’s a long, poor run of onshore and cross-shore winds, with stronger breezes and messy conditions through the second week. The combined energy on Saturday 12 September spikes up to 495 (strong), but it’s cross-onshore, choppy, and blown out – more of a kite-surfing situation than a paddle session. The swell is 5 ft to 5 ft, period up to 10 seconds, but the wind ruins it.

Overall, Wednesday 2 September morning is your true standout – clean, glassy, and that 12-second pulse has some real grunt. The second-week spike on Monday 7 September is promising but less certain. Otherwise, it’s a long gap of flatness and rubbish. That’s the read from here.

Rusty.

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