Maresias Surf Forecast

/ São Paulo (84 surf breaks) /

Brazil (447 surf breaks) / Lat Long: (23.81° S 45.54° W)

Surf Forecasts:

Maresias surfForecast / São Paulo / Brazil

12 Day Weather and Surf, issued 8 am Wednesday 03 Sep 2025 -03

Forecast update in hr min s Forecast update imminent

Maresias surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Maresias sea temperature is 20.8° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Maresias this week:

The surf forecast for Maresias over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 04) at 3AM. The primary swell is predicted to be 2.1m and 9s period with a secondary swell of 0.1m and 18s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Maresias in the next 12 days are 1.7m 15s and forecast to arrive on Wednesday (Sep 10) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Thursday (Sep 04) at 3AM.

Wave Type	Time (-03) & Date	Wave Height & Period
Next good surf (1 star+)	3AM (Thu 4th Sep)	7ft (2.1m) 9s
Best Surf	3AM (Thu 4th Sep)	7ft (2.1m) 9s
Most Powerful	3PM (Wed 10th Sep)	5.5ft (1.7m) 15s

Table - best surf conditions forecast for Maresias over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Warm (max 28°C on Thu morning, min 17°C on Fri night). Wind will be generally light.									Days 3-6 Weather Summary Moderate rain (total 13mm), heaviest on Sat afternoon. Warm (max 26°C on Mon night, min 18°C on Sat night). Wind will be generally light.
	Wednesday 03			Thursday 04			Friday 05			Saturday 06			Sunday 07			Monday 08			Tuesday 09
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	3	0	0	0	0	0	0	0	0	0	0	0	1	1	2	1	0	0	0	2	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	S	S	S	S	S	W	ESE	SW	ESE	S	SSE	ESE	ESE	ESE	S	SE	S	S	ESE	ESE
Period(s) (?)	9	11	18	18	16	16	4	8	7	8	8	8	8	7	7	9	11	14	12	8	8
Wave Graph (?)
Energy (?)	654	16	6	6	5	5	25	236	116	176	395	416	371	387	343	71	64	33	95	351	371
Wind (km/h)	ESE	E	NE	NNE	E	N	WSW	SW	WSW	W	SSW	SE	E	E	ENE	ENE	ENE	NE	W	ENE	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	glass	cross	cross- off	glass	cross	off	cross	cross- on	cross	cross	on	cross- on	cross	cross	cross- off	cross- off	cross- off	cross- off	cross	cross- off	glass
High Tide / height (m)		1:20PM 1.02	12:50AM 0.87		1:44PM 1.11	1:14AM 0.99		2:08PM 1.18	1:39AM 1.10		2:31PM 1.22	2:06AM 1.19		2:55PM 1.22	2:35AM 1.25		3:18PM 1.18		3:07AM 1.28	3:41PM 1.12
Low Tide / height (m)			6:54PM 0.39	6:51AM 0.11		7:30PM 0.31	7:32AM -0.01		8:03PM 0.25	8:11AM -0.09		8:36PM 0.22	8:48AM -0.13		9:07PM 0.21	9:24AM -0.10		9:36PM 0.21	10:00AM -0.02		10:03PM 0.22

	Wednesday 03			Thursday 04			Friday 05			Saturday 06			Sunday 07			Monday 08			Tuesday 09
Sunrise	6:11	-	-	6:09	-	-	6:09	-	-	6:07	-	-	6:07	-	-	6:05	-	-	6:05	-	-
Sunset	-	5:51	-	-	5:52	-	-	5:52	-	-	5:52	-	-	5:52	-	-	5:52	-	-	5:52	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	5	6	1	-	1	-	-	-	-	-	-
Temp. °C	25	25	20	28	28	23	21	20	18	20	20	19	19	19	20	24	24	26	25	25	22
Feels °C (?)	26	26	20	28	28	22	21	21	19	20	20	20	20	20	22	24	24	25	26	27	25

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 São Paulo

Wind Update The wind is still offshore at Maresias (light winds from the N.(Wind varies from 310 to 050 degs) at Sao Jose Dos Campos (Aero) 74 km from Maresias). No surfable waves
1 hour 45 minutes ago Maresias

Expand

View all

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Maresias surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

Information about the Maresias Surf forecast

The above surf forecast table for Maresias provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Maresias can be found by selecting the local surf guide option on the grey menu. Our Maresias surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Maresias) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Maresias may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Maresias is 14 km (9 miles) from Sao Sebastiao. If you plan a holiday in São Paulo, look for hotels and other accommodation in Sao Sebastiao. Sao Sebastiao has rooms for a wide range of budgets as well as car hire and transport links.