Lopes Mendes (Ilha Grande) Surf Forecast

/ Rio de Janeiro (47 surf breaks) /

Brazil (447 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 Sunday 14 Sep 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 21.8° C
(Which is slightly warmer than usual)

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

The current surf forecast for Lopes Mendes (Ilha Grande) at 8AM is: 1.8m 13s primary swell from a South-southeast direction and 0.4m 9s secondary swell from a South-southwest direction (forecast issued at 02:00am September 14). The wind direction is predicted to be offshore and the swell rating is 4.

Time (-03) & Date	Wave Height	Wave Period
Morning (14 Sep)	6ft (1.9m)	13s
Afternoon (14 Sep)	6ft (1.8m)	14s
Evening (14 Sep)	6ft (1.9m)	14s

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

	Sunday 14								Monday 15								Tuesday 16
	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)	3	4	4	4	3	2	2	3	4	4	4	4	2	3	3	4	4	4	4	3	1	1	1	2
Wave Height (m) & direction (?)	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SE	SE	SSE	SE	SE	SE	SE	SE	SE	SE	SE	SE	SE
Period(s) (?)	13	13	13	13	14	14	14	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13	13	13
Wave Graph (?)
kJ (?)	980	1086	1028	1226	1411	1240	1240	1310	1291	1291	1272	1429	1429	1253	1144	1042	867	854	854	769	769	769	769	991
Wind (km/h)	E	E	ENE	ENE	E	ESE	E	E	ENE	NE	NE	ENE	SE	E	E	ENE	NNE	NE	NE	ENE	SE	SSW	WNW	NW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	off	cross- off	cross	cross- off	cross- off	off	cross- off	glass	off	cross- off	cross	cross- on	cross- on	cross
High Tide / height (m)				6:42AM 0.78	11:52AM 0.80		5:49PM 0.73		11:47PM 0.49					12:42PM 0.91		6:51PM 0.65		12:15AM 0.60				1:16PM 0.98
Low Tide / height (m)		1:37AM 0.36			9:02AM 0.73		3:21PM 0.67		10:22PM 0.48		3:20AM 0.36				5:23PM 0.64		10:17PM 0.58		4:56AM 0.29					6:23PM 0.55

	Sunday 14								Monday 15								Tuesday 16
Sunrise	-	-	5:54	-	-	-	-	-	-	-	5:52	-	-	-	-	-	-	-	5:52	-	-	-	-	-
Sunset	-	-	-	-	-	5:50	-	-	-	-	-	-	-	5:50	-	-	-	-	-	-	-	5:50	-	-

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

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 Rio de Janeiro

Wind Update Continuing clean conditions at Lopes Mendes (Ilha Grande) (calm at Santa Cruz (Aero) 51 km from Lopes Mendes (Ilha Grande)). A 1.9m groundswell from the SSE
2 hours 31 minutes ago Lopes Mendes (Ilha Grande)

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