Praia dos Castelhanos (Ilha Bela) Surf Forecast

/ São Paulo (84 surf breaks) /

Brazil (447 surf breaks) / Lat Long: (23.86° S 45.29° W)

Surf Forecasts:

Praia dos Castelhanos (Ilha Bela) surfForecast / São Paulo / Brazil

48hr Weather and Surf, issued 8 pm Thursday 18 Sep 2025 -03

Forecast update in hr min s Forecast update imminent

Praia dos Castelhanos (Ilha Bela) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Praia dos Castelhanos (Ilha Bela) sea temperature is 21.1° C
(Which is normal for this time of year)

How big are the waves at Praia dos Castelhanos (Ilha Bela) today?

The current surf forecast for Praia dos Castelhanos (Ilha Bela) at 2AM is: 1.1m 9s primary swell from a Southeast direction and 0.6m 8s secondary swell from a East direction (forecast issued at 08:00pm September 18). The wind direction is predicted to be glassy and the swell rating is 2.

Time (-03) & Date	Wave Height	Wave Period
Morning (19 Sep)	3.5ft (1.1m)	8s
Afternoon (19 Sep)	3.5ft (1.0m)	8s
Evening (19 Sep)	3.5ft (1.0m)	8s

Table - waves today at Praia dos Castelhanos (Ilha Bela). (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Thu 18		Friday 19								Saturday 20								Sunday 21
	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	12 PM	3 PM
Rating (10 max)	2	3	2	2	1	1	0	0	0	2	2	2	2	2	1	0	0	0	0	0	0	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	E	E
Period(s) (?)	11	10	10	9	8	8	8	8	8	8	8	9	9	9	9	8	8	8	8	8	8	8	8	8
Wave Graph (?)
kJ (?)	462	384	273	203	181	156	153	129	119	119	151	311	333	262	217	160	122	119	90	87	87	87	224	190
Wind (km/h)	WSW	W	WNW	N	NE	ENE	E	E	ENE	NNW	W	WSW	W	WSW	SSE	ESE	ENE	NNE	NNE	N	N	N	SSE	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	off	glass	glass	cross- on	on	on	on	cross- on	glass	glass	off	off	glass	cross- on	on	cross- on	cross- on	cross- on	cross	cross	cross	cross- on	on
High Tide / height (m)				12:57AM 0.96				1:57PM 1.07				1:23AM 1.07				2:11PM 1.08				1:49AM 1.14				2:27PM 1.09
Low Tide / height (m)		7:22PM 0.40				7:24AM 0.05				7:45PM 0.33				7:55AM 0.01				8:08PM 0.27				8:24AM 0.01

	Thu 18		Friday 19								Saturday 20								Sunday 21
Sunrise	-	-	-	-	5:54	-	-	-	-	-	-	-	5:52	-	-	-	-	-	-	-	5:52	-	-	-
Sunset	-	-	-	-	-	-	-	5:55	-	-	-	-	-	-	-	5:55	-	-	-	-	-	-	-	5:55

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	21	20	20	20	20	21	21	21	21	21	20	21	21	23	23	22	22	21	23	24	24	28	26	25
Feels °C (?)	22	22	22	22	22	23	22	21	22	23	22	22	22	25	24	24	23	21	24	25	24	28	27	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 São Paulo

Wind Update Offshore wind has become very light (calm at Parati 91 km from Praia dos Castelhanos (Ilha Bela)). Surf should be turning clean at Praia dos Castelhanos (Ilha Bela). 1.4m 10s swell from the SE with a 0.8m 11s groundswell, also from the SE. 2 swells combining to make bigger set waves.
1 hour 33 minutes ago Praia dos Castelhanos (Ilha Bela)

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