Prainha Surf Forecast and Surf Report

G’day, Rusty here. Let’s talk about what’s brewing at Prainha. I’ll level with you—the first week or so is pretty flat and ordinary, but there are a couple of windows later that might get your hopes up.

The water temp is around 68°, which is a touch warmer than usual for this time of year—nothing crazy, but you’ll feel it’s a bit more comfortable than typical August.

From Wednesday the 5th through the weekend, we’re looking at tiny surf—2ft to 3ft from the east and southeast, mostly with short periods under 8 seconds. Winds are all over the shop—cross, cross-on, and some moderate breezes making things choppy. The combined swell energy is weak, ranging from 53 to 168 (weak to low moderate). Not worth paddling out for. There’s a couple of glassy windows Thursday the 6th morning and Friday the 7th morning, but the swell is just too small to do anything with.

Monday the 10th and Tuesday the 11th stay small—2ft to 3ft from the southeast—but the conditions clean up under cross-off winds. Energy bumps to 106 to 171 (low moderate), but it’s still very average. Wednesday the 12th is similar: clean, light winds, but only 2ft of southeast swell and energy around 148 (low moderate). Surfable, but nothing to get excited about.

Now, Thursday the 13th morning is where it gets interesting. We’ve got 5ft of east swell with a short 7-second period, but the winds go glassy and the combined energy jumps to 316 (moderate). The forecast says “expect good surf conditions.” That’s your standout session—clean, glassy, and the swell is big enough to get some fun waves. Just know the short period means it’ll be a bit crumbly and not super powerful. Prainha is an advanced break, and with the swell just under 5ft, it’s manageable for strong surfers but might be too much for beginners. The light offshore wind from the WSW in the morning is a big plus.

The afternoon on the 13th sees the swell push to 5ft with onshore wind, so quality drops. The rest of that week into the 16th gets messy—strong cross-on and onshore winds, swell building to 6ft from the east-southeast, combined energy climbing to 581 (strong). But the wind is ruining it, and the surf quality is poor. That setup with significant swell and poor conditions might actually be more interesting for kite surfing than paddle surfing.

Monday the 17th brings 6ft from the east, 9-second period, combined energy of 505 (strong), but the wind is cross-on and the conditions are marginal. Tuesday the 18th afternoon is another bright spot: 5ft from the east, 10-second period, combined energy of 441 (strong), with clean conditions under light cross-off winds. That’s a solid session for strong surfers—good energy, clean faces, and a bit more period for better shape. Just keep in mind 5ft is still on the bigger side for beginners.

Wednesday the 19th and Thursday the 20th fade back to small, clean but weak—2ft to 3ft, combined energy dropping to 79 (weak). Not much going on.

To sum it up, the best bet is Thursday the 13th morning with glassy conditions and a clean 5ft east swell. Tuesday the 18th afternoon is also worth a look for stronger surfers, with clean, solid waves. The rest is either too small, too windy, or too messy. Keep your eyes on that Thursday window.

Rusty

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