Lopes Mendes (Ilha Grande) Surf Forecast

/ Rio de Janeiro (47 surf breaks) /

Brazil (449 surf breaks) / Lat Long: (23.18° S 44.12° W)

Surf Forecasts:

Lopes Mendes (Ilha Grande) surfForecast / Rio de Janeiro / Brazil

48hr Weather and Surf, issued 2 am Wednesday 19 Nov 2025 -03

Forecast update in hr min s Forecast update imminent

Lopes Mendes (Ilha Grande) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Lopes Mendes (Ilha Grande) sea temperature is 22.5° C
(Which is slightly cooler than normal)

How big are the waves at Lopes Mendes (Ilha Grande) today?

The current surf forecast for Lopes Mendes (Ilha Grande) at 5AM is: 1.3m 11s primary swell from a South-southwest direction and 0.4m 3s secondary swell from a West-southwest direction (forecast issued at 02:00am November 19). An open ocean swell of 0.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (-03) & Date	Wave Height	Wave Period
Morning (19 Nov)	6ft (1.9m)	11s
Afternoon (19 Nov)	3.5ft (1.0m)	10s
Evening (19 Nov)	3.5ft (1.0m)	10s

Table - waves today at Lopes Mendes (Ilha Grande). (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Wednesday 19								Thursday 20								Friday 21
	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	6 PM	9 PM
Rating (10 max)	1	0	0	0	0	0	0	0	0	1	2	2	2	2	3	3	4	4	4	3	3	2	2	3
Wave Height (m) & direction (?)	SSW	S	SSW	SSW	SSW	S	S	S	SSW	SSW	S	S	S	S	S	S	S	S	S	S	S	S	S	S
Period(s) (?)	11	11	11	11	11	10	10	10	10	10	11	10	10	10	17	16	16	15	14	14	13	13	13	12
Wave Graph (?)
kJ (?)	209	297	431	822	656	208	204	198	394	443	449	443	552	529	992	2496	2524	2441	2310	1807	1247	956	809	593
Wind (km/h)	WNW	WNW	WSW	SW	SSW	SSW	SSW	WSW	WSW	SW	S	S	SE	SE	E	E	ENE	NE	NE	E	ESE	E	E	NE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross- on	on	cross- on	on	on	on	cross- on	on	cross- on	cross- on	cross	cross	cross- off	cross- off	off	off	off	cross- off	cross- off	cross- off	cross- off	off
High Tide / height (m)						1:41PM 1.01				2:19AM 1.12				2:07PM 1.00				2:51AM 1.11				2:34PM 1.00
Low Tide / height (m)				8:21AM 0.26				8:21PM 0.10				8:54AM 0.29				8:52PM 0.08					9:28AM 0.33

	Wednesday 19								Thursday 20								Friday 21
Sunrise	-	-	5:03	-	-	-	-	-	-	-	5:01	-	-	-	-	-	-	-	5:01	-	-	-	-	-
Sunset	-	-	-	-	-	-	6:20	-	-	-	-	-	-	-	6:21	-	-	-	-	-	-	-	6:21	-

Rain (mm)	1	-	-	-	-	-	-	-	-	1	1	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	24	23	22	23	23	22	22	21	21	20	20	21	21	21	21	20	20	19	18	21	21	22	21	21
Feels °C (?)	26	23	21	20	20	20	21	21	21	20	20	21	21	20	20	18	18	17	16	20	19	21	21	22

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

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