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Live conditions

Maresias

Brazil Β· South America

Updated 55 min ago
🌧️
Type:beach
Shelter:exposed
Difficulty:advanced
Tide:all tides
Facing:SE

Forecast accuracy at Maresias

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Best time to go

No great windows in the next 2 days

Best available option is Today around 6am (score: 19). Conditions are below the Good threshold but may still be surfable.

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Session journal

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Recent form

Last 19 days of logged conditions.

30-day average
2.1/10
Days firing
0
Score 6 or higher
Best day recently
3.8/10
6 May
Days logged
19

Spot guide

This guide was generated from conditions data. Know this spot? Submit your own tips below.

## The spot Maresias is one of Brazil's most powerful beach breaks, producing thick, heavy barrels on the northern coast of Sao Paulo state. The combination of steep sandbanks very close to shore and the proximity of the Serra do Mar mountains (which funnel offshore winds directly onto the break) creates a wave of extraordinary intensity for a beach break. The lip throws top-to-bottom with reef-like power. This is where Brazilian competitive surfing cuts its teeth. ## When it works South to south-east Atlantic groundswells from March through September deliver the heaviest conditions. The wave needs at least 4ft of swell to produce barrels, with 6-8ft days creating world-class tubes. North-westerly offshore winds blow off the Serra do Mar mountains, strongest from midnight through the morning. This mountain-funnelled offshore is Maresias' secret weapon. ## Where to sit The main peak sits where the deep channel meets the steep inner bar. The wave produces A-frame peaks with both left and right barrels. The take-off is steep and fast, often near-vertical. Position yourself just outside where the sets first hit the bar. The shifting nature of the sand means the peak moves; watch a few sets to identify the active bank. ## Hazards The wave breaks with extreme hydraulic force in very shallow water. The take-offs are steep and the lip is thick. Hold-downs drive you into the sand with significant force. Strong rip currents run through the channels between banks. The close-proximity shorebreak can be brutal. Board breakage is common on bigger days. The crowd is intense and the local surfers are among Brazil's best. ## Parking and access Parking along the beachfront road. The beach is immediately accessible with multiple entry points. Full facilities including restaurants, shops, and accommodation line the main street. Maresias is approximately 2.5 hours' drive from Sao Paulo city on the coast road. ## The crowd Maresias is Brazil's competitive surfing hub and the line-up is aggressive with extremely skilled locals. Expect 30-50 surfers on good days. The standard is professional quality. The atmosphere is intense and competitive. Dawn patrol and weekdays offer slightly better ratios. ## Local tips The offshore wind from the mountains is the key variable. When the north-westerly is blowing clean and a solid swell is running, Maresias transforms from a regular beach break into a world-class barrel. Check wind direction at dawn; if it is blowing off the mountains, get in the water immediately. The window can be brief before the sea breeze takes over. A strong shortboard with extra rocker handles the steep drops. The water is warm enough for a spring wetsuit most of the year (20-24C).

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Frequently asked questions

How often is this page updated?

Current conditions refresh every 3 hours when the cron runs. Hourly data updates every 30 minutes. The 7-day forecast, luck factor, and packing notes are all pre-computed at the same time.

What is the luck factor?

We compare the 7-day forecast to the last 5 years of marine data for the same week at Maresias. The delta tells you whether conditions are shaping up better, worse, or about the same as a typical late May.

How is 'best session' picked?

We score each day of the 7-day forecast using the same algorithm as the leaderboard, and highlight the highest scorer.

Where does the data come from?

Open-Meteo's Marine API (swell height, period, water temperature) and Weather API (wind and conditions).

Does the score capture local knowledge?

Honestly, no. Every break has tide windows, swell directions and reef contours that a global model cannot see. Treat the score as a starting point, then check a local cam.

When is the best time to surf Maresias?

Check our timing score heatmap above for a week-by-week breakdown combining surf conditions with crowd pressure.