Praia de Sao Marcos Surf Forecast

/ Maranhao (8 surf breaks) /

Brazil (447 surf breaks) / Lat Long: (2.53° S 44.34° W)

Surf Forecasts:

Praia de Sao Marcos surfForecast / Maranhao / Brazil

48hr Weather and Surf, issued 2 pm Friday 05 Sep 2025 -03

Forecast update in hr min s Forecast update imminent

Praia de Sao Marcos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Praia de Sao Marcos sea temperature is 28.3° C
(Which is 1.5°C warmer than normal for this time of year)

How big are the waves at Praia de Sao Marcos today?

The current surf forecast for Praia de Sao Marcos at 6PM is: 0.9m 4s primary swell from a Northeast direction (forecast issued at 02:00pm September 05). The wind direction is predicted to be cross-onshore.

Time (-03) & Date	Wave Height	Wave Period
Morning (05 Sep)	-	-
Afternoon (05 Sep)	3ft (0.9m)	7s
Evening (05 Sep)	3.5ft (1.0m)	4s

Table - waves today at Praia de Sao Marcos. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Friday 05				Saturday 06								Sunday 07								Monday 08
	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM
Rating (10 max)	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ENE	NE	NE	NE	NE	ENE	ENE	ENE	ENE	NE	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	NE	NE	NE	ENE	ENE	ENE
Period(s) (?)	6	7	4	4	4	5	5	5	5	5	5	5	5	5	5	5	7	7	5	5	5	5	5	5
Wave Graph (?)
Energy (?)	56	77	25	36	40	46	49	55	64	57	60	70	87	106	111	121	139	131	60	57	53	64	77	85
Wind (km/h)	ESE	NNE	NE	NE	NE	ENE	ENE	ENE	NE	NNE	NNE	NE	ENE	ENE	E	E	NE	NNE	NNE	NE	NE	ENE	E	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross	cross
High Tide / height (m)			5:51PM 5.61					6:06AM 5.89				6:32PM 6.01				6:48AM 6.28				7:11PM 6.34				7:29AM 6.55
Low Tide / height (m)	11:26AM 1.11				11:48PM 1.15					12:12PM 0.67				12:32AM 0.67				12:54PM 0.32				1:14AM 0.27

	Friday 05				Saturday 06								Sunday 07								Monday 08
Sunrise	-	-	-	-	-	-	5:52	-	-	-	-	-	-	-	5:52	-	-	-	-	-	-	-	5:52	-
Sunset	-	5:58	-	-	-	-	-	-	-	5:58	-	-	-	-	-	-	-	5:57	-	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	32	29	27	26	26	26	26	28	29	28	26	26	26	26	25	27	29	28	26	26	26	26	26	27
Feels °C (?)	33	28	28	27	27	27	28	29	29	27	26	26	26	26	25	27	28	27	26	26	27	26	26	26

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

Recent Eyeball Surf Reports for Maranhao

Wind Update Continuing clean conditions at Praia de Sao Marcos (calm at São Luís 14 km from Praia de Sao Marcos). A 1.0m windswell from the NE
56 minutes ago Praia de Sao Marcos

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Actual: 56 min ago

4 km/h

WNW

Clean

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