Balneario Sao Jose Surf Forecast and Surf Report

Alright, Rusty here, let’s talk about what’s shaping up down at Balneario Sao Jose.

First up, the water is a touch warmer than normal for this time of year, sitting at 70°, which is a nice little bonus for the sessions ahead.

The week kicks off proper on Wednesday, the 26th of August. We’ve got a solid 4ft groundswell from the SSE, pulsing with a very long 16-second period. The combined energy is pumping at a strong 1117 (moderate to strong wave energy). The wind is glassy, WSW at only 3 mph, so the surf is going to be clean and lined up. This is swell for experienced surfers, but it’s a standout window. Wednesday afternoon holds even better with the swell pushing to 6ft from the same direction, period at 15 seconds, and energy jumping to 1547. Still glassy with a light SE breeze. That afternoon session is the best on offer for the whole outlook – bigger, powerful, and absolutely clean.

Thursday morning, the 27th of August, keeps the quality going. Swell holds at 6ft, SSE, 14-second period, and the energy is 1336. Glassy conditions again with a light NE wind. This is another excellent session. The afternoon turns though; the wind swings east at 9 mph, becoming cross-onshore and choppy, so the window closes on Thursday afternoon.

Friday morning the 28th is cleaner but the swell drops in quality. We’re looking at 6ft, but the period drops to a short 8 seconds from the east, with energy at 721. The wind is light cross-offshore, so it’s rideable, but nothing special. Friday afternoon is smaller and choppy.

The weekend is a write-off. Saturday and Sunday are small, weak, and the wind is either onshore or cross-onshore. The energy drops to triple digits, and the swell is under 4ft. You’re better off doing something else.

Monday the 31st of August offers a tiny 2ft glassy morning, but it’s barely surfable. The energy is only 62.

Tuesday the 1st of September brings a small bump of 3ft from the east, with a 10-second period and energy of 246. The morning is clean with a light cross-offshore wind, but the afternoon gets hammered by 16 mph SSW winds and rain. Not worth it.

The following week has a few bright spots, but it’s less certain. Wednesday the 2nd of September shows a 5ft SSE swell in the morning, but the wind is cross-onshore, so conditions are messy. The afternoon looks better with a 5ft swell and a longer 11-second period, but still cross-onshore.

Thursday the 3rd is marginal at best, with onshore winds ruining the 4ft swell.

Now, Friday the 4th of September is a wildcard. We’ve got a 7ft SSE swell, period of 11 seconds, and energy at 1549. That’s a lot of power. But the wind is onshore at 9 mph, and there’s light rain. For experts only, and even then, the wind could make it a messy, powerful beast. If it cleans up, it’s a standout, but it’s a long-range call so keep your fingers crossed.

The rest of the second week sees small, weak swells with occasional clean windows. Sunday the 6th of September afternoon has a glassy 5ft from the east, period of 6 short seconds, but it’s surfable. Monday the 7th morning is glassy with a 4ft swell. The real glimmer is Wednesday the 9th of September morning: 5ft from the ESE, 8-second period, but with glassy conditions and energy at 503. That’s a very clean, fun session. Thursday the 10th of September morning is also glassy, but the swell is only 2ft, though it’s a long-period 15-second groundswell from the SE, better for the points and reefs around here, but for the beach/pier setup it might be a bit too straight.

Overall, the standout hands down is Wednesday afternoon, the 26th of August. Big 6ft groundswell, long period, glassy wind, and a high energy reading. That’s the one to circle. The back-up is Thursday morning, the 27th. After that, the long-range Friday the 4th of September has the size but needs the wind to play ball.

Rusty out.

Read more