Prainha Surf Forecast and Surf Report

Oi, Rusty here, looking at the next couple weeks at Prainha. It’s a bit of a slow burn with some good sessions and a couple real beasts later.

Water’s about 66°F, pretty average for this time of year – nothing unusual.

Thursday morning, September 10th – glassy conditions, light rain, wind from the NNW at 3 mph. Swell 3 ft from the SSE, period 12 seconds – nice groundswell. Energy moderate (412). Clean little waves, not pumping but fun. Afternoon goes cross-on and choppy – skip it.

Friday morning (11th) – swell 4 ft from the ENE, period 8 seconds (short period), wind cross-off from the WNW at 3 mph, clean. Energy moderate (278). Solid morning. Afternoon gets cross-on ripples.

Saturday (12th) – swell jumps to 8 ft in the morning from the S, period 7 seconds. That’s short-period and raw. Wind cross-off at 12 mph, keeps it clean, but energy strong (694). Over 8 ft in the afternoon (8 ft) – that’s expert territory. Too big for beginners.

Sunday (13th) – backs off to 5 ft, period 8 seconds, clean with cross-off winds. Good for intermediates.

Monday (14th) – messy with cross-on winds and chop. Not great.

Tuesday (15th) morning – this is a standout. Clear skies, offshore wind from the SW at 3 mph – glassy. Swell 6 ft from the E, period 8 seconds, combined energy strong (684). Clean, fun waves. Afternoon gets cross-shore chop.

Wednesday (16th) morning – another good one: 5 ft from the S, period 8 seconds, light cross-off wind, clean. Energy moderate (537).

Thursday (17th) morning – for the experienced. Swell 6 ft from the SSE, period 12 seconds, glassy with ENE wind at 3 mph. Energy very strong (1000). Powerful, but period over 11 seconds means it’s better for points or reefs – Prainha’s a beach, so it’ll be straight and punchy. Experts only.

Then a few small, glassy mornings: Friday (18th) 3 ft, Saturday (19th) 4 ft, Sunday (20th) 4 ft – all clean, energy dropping (164-381). Fun small-wave days.

A lull Monday 21st to Tuesday 22nd morning. Tuesday (22nd) afternoon – 7 ft from the S, period 6 seconds, clean but short. Energy moderate (423).

Wednesday (23rd) – the other standout. Morning: 5 ft from the SSE, period 13 seconds, light cross-off wind, clean. Energy strong (843). Long-period groundswell – smooth but might break straight at the beach. Afternoon: glassy, 4 ft from the S, period 12 seconds – pure glass. This is the best quality session of the whole run.

Thursday (24th) morning – 5 ft from the E, period 7 seconds, glassy with NNW wind at 3 mph. Clean fun.

Friday (25th) – monster swell. 13 ft in the morning from the ENE, period 10 seconds, energy massive (3795). Way too big for this break – warning says it’s too big. Afternoon 12 ft from the E, still huge (2840). Only for the absolute madmen.

Best bets: Tuesday (15th) morning for the offshore glass, and Wednesday (23rd) for the long-period groundswell. Crowds are “sometimes” a thing, and the break is inconsistent – so when it’s good, expect a few locals.

Rusty out.

Read more