Ilha Porchat Surf Forecast

/ São Paulo (84 surf breaks) /

Brazil (447 surf breaks) / Lat Long: (23.98° S 46.37° W)

Surf Forecasts:

Ilha Porchat surfForecast / São Paulo / Brazil

12 Day Weather and Surf, issued 8 pm Tuesday 14 Oct 2025 -03

Forecast update in hr min s Forecast update imminent

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

Today's Ilha Porchat sea temperature is 22.1° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Ilha Porchat this week:

The surf forecast for Ilha Porchat over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 22) at 3AM. The primary swell is predicted to be 1.7m and 7s period with a secondary swell of 1.4m and 7s. Another secondary swell of 0.3m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Ilha Porchat in the next 12 days are 1.6m 9s and forecast to arrive on Monday (Oct 20) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Oct 17) at 12AM.

Wave Type	Time (-03) & Date	Wave Height & Period
Next good surf (1 star+)	3AM (Wed 22nd Oct)	5.5ft (1.7m) 7s
Best Surf	3AM (Wed 22nd Oct)	5.5ft (1.7m) 7s
Most Powerful	9AM (Mon 20th Oct)	5ft (1.6m) 9s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 6mm), mostly falling on Fri afternoon. Warm (max 23°C on Fri morning, min 18°C on Wed night). Wind will be generally light.										Days 3-6 Weather Summary Heavy rain (total 47mm), heaviest during Sat afternoon. Warm (max 23°C on Sat morning, min 17°C on Sun night). Wind will be generally light.
		Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20			Tue 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	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	S	S	ESE	S	SE	S	S	SSE	S	ESE	ESE	S	SSE	SSE	SE	ESE	SE	S	ESE	ESE
Period(s) (?)	9	9	8	8	9	8	9	9	8	9	8	8	5	7	8	8	9	8	11	7	7
Wave Graph (?)
kJ (?)	55	55	66	41	25	18	13	23	24	26	33	34	56	121	361	311	395	291	155	138	236
Wind (km/h)	ESE	S	SE	ENE	SE	ESE	WSW	SE	SW	WSW	NE	SW	SSE	SSE	SSE	ESE	ESE	ESE	E	E	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	on	cross- on	cross- off	glass	cross- on	cross	glass	glass	glass	glass	cross- on	on	on	cross- on	cross	cross	cross- on	cross	cross	cross
High Tide / height (m)	11:59PM 0.63		1:05PM 0.98	11:48PM 0.78		1:08PM 1.02	12:09AM 0.93		1:11PM 1.06	12:37AM 1.06		1:20PM 1.10	1:06AM 1.17		1:36PM 1.14	1:34AM 1.24		1:54PM 1.16	2:03AM 1.27		2:13PM 1.16
Low Tide / height (m)	10:41PM 0.62	4:50AM 0.35		6:02PM 0.61	5:47AM 0.26		6:26PM 0.51	6:28AM 0.18		6:51PM 0.40	7:02AM 0.13		7:16PM 0.30	7:32AM 0.10		7:40PM 0.22	8:00AM 0.11		8:04PM 0.15	8:26AM 0.14

		Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20			Tue 21
Sunrise	-	5:31	-	-	5:31	-	-	5:30	-	-	5:30	-	-	5:28	-	-	5:28	-	-	5:26	-
Sunset	-	-	6:09	-	-	6:09	-	-	6:10	-	-	6:10	-	-	6:12	-	-	6:12	-	-	6:13

Rain (mm)	1	-	-	-	-	-	-	1	4	2	2	12	17	7	2	4	1	-	1	-	-
Temp. °C	21	20	20	20	22	21	20	23	21	22	23	21	20	19	18	19	20	19	19	20	20
Feels °C (?)	22	21	20	21	23	21	22	26	24	25	26	23	19	16	15	16	16	15	15	16	16

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 Continuing clean conditions at Ilha Porchat (calm at Santos wx 6 km from Ilha Porchat). 0.7m 5s windswell from the SSE with a 0.7m 9s swell from the ESE and a 0.5m 10s swell from the S. 3 swells combining to make bigger set waves.
44 minutes ago Ilha Porchat

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Actual: 44 min ago

0 km/h

Clean

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ilha Porchat 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 Ilha Porchat Surf forecast

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

Ilha Porchat is 4 km (2 miles) from the city of Praia Grande. If you plan a holiday in São Paulo, look for hotels and other accommodation in Praia Grande. Praia Grande has rooms for a wide range of budgets as well as car hire and transport links.