Praia dos Castelhanos (Ilha Bela) Surf Forecast

/ São Paulo (84 surf breaks) /

Brazil (449 surf breaks) / Lat Long: (23.86° S 45.29° W)

Surf Forecasts:

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

12 Day Weather and Surf, issued 8 pm Friday 14 Nov 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 22.5° C
(Which is slightly cooler than normal)

Best Forecast Surf Conditions for Praia dos Castelhanos (Ilha Bela) this week:

The surf forecast for Praia dos Castelhanos (Ilha Bela) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 15) at 6AM. The primary swell is predicted to be 0.3m and 12s period with a secondary swell of 0.3m and 5s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Praia dos Castelhanos (Ilha Bela) in the next 12 days are 1.8m 16s and forecast to arrive on Thursday (Nov 20) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Tuesday (Nov 18) at 12PM.

Wave Type	Time (-03) & Date	Wave Height & Period
Next good surf (1 star+)	6AM (Sat 15th Nov)	1ft (0.3m) 12s
Best Surf	3AM (Fri 21st Nov)	5ft (1.6m) 16s
Most Powerful	9PM (Thu 20th Nov)	6ft (1.8m) 16s

Table - best surf conditions forecast for Praia dos Castelhanos (Ilha Bela) over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 26mm), heaviest during Mon afternoon. Warm (max 27°C on Mon morning, min 21°C on Fri night). Wind will be generally light.										Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Tue morning. Warm (max 23°C on Mon night, min 19°C on Wed night). Wind will be generally light.
		Saturday 15			Sunday 16			Monday 17			Tuesday 18			Wednesday 19			Thursday 20			Fri 21
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	0	1	0	0	0	1	0	1	1	1	1	1	2	1	0	0	0	0	2	3	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	SSE	SSE	S	E	ESE	E	ESE	SSE	S	S	S	S	S	S	S	SSE	SSE	SSE	SSE	S
Period(s) (?)	9	11	10	9	6	6	6	6	16	14	12	7	11	10	10	12	12	18	16	15	14
Wave Graph (?)
kJ (?)	14	39	31	26	80	36	34	30	48	93	72	127	338	208	204	98	183	851	1537	744	494
Wind (km/h)	WNW	WNW	SE	NE	ENE	WNW	NE	SW	W	S	WSW	SSW	WSW	S	SSE	NE	NE	ENE	NE	SSW	WSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	glass	cross- on	cross- on	cross- on	glass	cross- on	glass	off	glass	cross- off	cross- off	glass	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- off	cross- off
High Tide / height (m)	11:23PM 0.85		12:19PM 0.89	12:05AM 0.94		12:35PM 0.93	12:42AM 1.01		12:55PM 0.96	1:15AM 1.06		1:17PM 0.97	1:47AM 1.09		1:39PM 0.98	2:18AM 1.10		2:02PM 0.98	2:48AM 1.09		2:27PM 0.98
Low Tide / height (m)		5:37AM 0.28	5:57PM 0.38		6:18AM 0.25		6:31PM 0.29	6:54AM 0.24		7:02PM 0.20	7:29AM 0.24		7:32PM 0.14	8:02AM 0.26		8:02PM 0.09	8:35AM 0.28		8:33PM 0.07	9:08AM 0.32

		Saturday 15			Sunday 16			Monday 17			Tuesday 18			Wednesday 19			Thursday 20			Fri 21
Sunrise	-	5:07	-	-	5:07	-	-	5:07	-	-	5:05	-	-	5:05	-	-	5:05	-	-	5:05	-
Sunset	-	-	6:22	-	-	6:23	-	-	6:24	-	-	6:24	-	-	6:25	-	-	6:27	-	-	6:27

Rain (mm)	-	-	-	-	-	7	-	-	19	1	5	4	-	-	-	-	-	-	-	-	3
Temp. °C	21	22	23	21	23	21	23	27	24	23	22	21	20	22	22	20	21	22	21	24	23
Feels °C (?)	23	25	24	22	25	24	25	30	26	26	23	22	22	22	22	20	18	20	20	25	22

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

Quick surf report for Praia dos Castelhanos (Ilha Bela):

join our community of surf reporters

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 Praia dos Castelhanos (Ilha Bela) 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 Praia dos Castelhanos (Ilha Bela) Surf forecast

The above surf forecast table for Praia dos Castelhanos (Ilha Bela) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Praia dos Castelhanos (Ilha Bela) can be found by selecting the local surf guide option on the grey menu. Our Praia dos Castelhanos (Ilha Bela) 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 (Praia dos Castelhanos (Ilha Bela)) 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 Praia dos Castelhanos (Ilha Bela) 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.

Praia dos Castelhanos (Ilha Bela) is 11 km (7 miles) from the city of Ilhabela. If you plan a holiday in São Paulo, look for hotels and other accommodation in Ilhabela. Ilhabela has rooms for a wide range of budgets as well as car hire and transport links.