Praia de Sao Marcos Surf Forecast and Surf Reports

(Maranhão, Brazil)

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Praia de Sao Marcos Surf Guide

Praia de Sao Marcos in Maranhao is an exposed beach break that has fairly consistent surf Offshore winds are from the south with some shelter here from east winds. Most of the surf here comes from groundswells and the best swell direction is from the north. The beach break provides left and right handers. When the surf is up, crowds are likely Overcrowding can even make surfing hazardous.

Praia de Sao Marcos Spot Info

Type:	Rating:	Reliability:	Todays Sea Temp*:
Beach	3	fairly consistent	29.1°C*ocean temperature recorded from satellite

Surfing Praia de Sao Marcos:

The best conditions reported for surf at Praia de Sao Marcos occur when a North swell combines with an offshore wind direction from the South.

Hourly Forecast

16 Day Forecast

What's the best time of year to surf Praia de Sao Marcos (for consistent clean waves)?

februaryBest Season: autumn

The best time of year for surfing Praia de Sao Marcos with consistent clean waves (rideable swell with light / offshore winds) is during Autumn and most often the month of February. Clean surfable waves are typically found 4% of the time in February while 28% of the time it tends to be blown out. For the remaining 68% of the time it is considered too small by most surfers but may still be OK for beginners and groms at times.

clean

Surfable waves that hold up well for longer rides in prevailing cross-offshore, offshore or light wind conditions.

blown out

28%

Surfable sized waves that are of poorer quality due to prevailing onshore, cross-onshore or windy conditions (may be preferable for kitesurfing).

too small

68%

Waves usually considered too small for good surf. Some wave-magnet breaks may still work though if conditions are right (on occasion).

Explore Praia de Sao Marcos Location Map

Interactive Praia de Sao Marcos surf break location map. View information about nearby surf breaks, their wave consistency and rating compared to other spots in the region. Current swell conditions from local buoys are shown along with live wind speed and direction from nearby weather stations. Click icons on the map for more detail. The nearest passenger airport to Praia de Sao Marcos is Marechal Cunha Machado (Sao Luis) Airport (SLZ) in Brazil, which is 13 km (8 miles) away (directly). The second closest airport to Praia de Sao Marcos is Senador Petronio Portella (Teresina) Airport (THE), also in Brazil, 328 km (204 miles) away.

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Please note that some surf spot locations are approximate to protect their exact location while others are not shown at close zoom level.

Praia de Sao Marcos Surf Forecasts:

Hourly Forecast

16 Day Forecast

Todays Surf Summary
Thursday, 7 May 2026, 02:21 Local Time

m, °C	Thursday 07
ft, °F	0AM	3AM	6AM	9AM
Wave (m)	NE	NE	NE	NE
Period (s)	6	6	6	6
Wind (km/h)
Wind State	on	on	on	glass

Tides at Praia de Sao Marcos

Current tide and informaton

For Itaqui, Brazil, 5 km from Praia de Sao Marcos.

Next High Water: 10:23am | 5.22m

Next Low Water: 04:17am | 1.61m

NEXT	IS AT (local time)	remaining
high tide
low tide

Praia de Sao Marcos Sea Temperature

Very warm air temperatures and very warm water(29.1 °C) too at Praia de Sao Marcos, warm enough for wearing board shorts and a rash vest in the surf. Cloudy, but feeling very pleasant in and out of the water.

Today, many surfers would wear a rashvest wetsuit.

Current Temp*: 29.1°C*ocean temperature recorded from satellite