Itaipu Surf Forecast

/ Rio de Janeiro (47 surf breaks) /

Brazil (447 surf breaks)

Surf Forecasts:

Itaipu surfForecast / Rio de Janeiro / Brazil

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

Forecast update in hr min s Forecast update imminent

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

Today's Itaipu sea temperature is 21.8° C
(Which is normal for this time of year)

How big are the waves at Itaipu today?

The current surf forecast for Itaipu at 2PM is: 1.1m 10s primary swell from a Southeast direction and 0.8m 6s secondary swell from a South-southwest direction (forecast issued at 08:00am September 18). An open ocean swell of 0.6m 8s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (-03) & Date	Wave Height	Wave Period
Morning (18 Sep)	4ft (1.2m)	11s
Afternoon (18 Sep)	3.5ft (1.1m)	10s
Evening (18 Sep)	4ft (1.2m)	10s

Table - waves today at Itaipu. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Thursday 18						Friday 19								Saturday 20								Sun 21
	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	0 AM	3 AM
Rating (10 max)	1	1	0	0	1	2	2	2	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSE	SSE	SSE	SE	SSE	SSE	SSE	SSE	SSE	SSE	SE	SE	SE	ESE	SE	SE	SE	SE	SE	SE	S	S	S	S
Period(s) (?)	12	11	10	10	10	10	10	10	9	9	10	10	10	8	10	10	10	10	9	9	14	14	13	13
Wave Graph (?)
kJ (?)	365	317	392	253	338	286	265	229	184	148	160	100	60	0	25	46	34	23	22	13	16	14	31	29
Wind (km/h)	NW	WNW	SSW	SSW	SE	E	NE	NNE	N	ENE	SSE	ESE	E	ENE	ENE	NE	NNE	N	SE	E	E	NNE	NE	NE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross- on	on	cross	cross- off	off	cross- off	cross- off	off	cross	cross- off	cross- off	off	off	off	cross- off	cross- off	cross	cross- off	cross- off	cross- off	off	off
High Tide / height (m)				12:25PM 0.84			9:57PM 0.97					1:31PM 0.83			10:54PM 0.95					2:26PM 0.83				12:03AM 0.92
Low Tide / height (m)	4:55AM -0.05				5:15PM 0.28				5:48AM -0.02					6:07PM 0.27				6:41AM 0.02				6:59PM 0.25

	Thursday 18						Friday 19								Saturday 20								Sun 21
Sunrise	5:46	-	-	-	-	-	-	-	5:45	-	-	-	-	-	-	-	5:43	-	-	-	-	-	-	-
Sunset	-	-	-	5:45	-	-	-	-	-	-	-	5:46	-	-	-	-	-	-	-	5:46	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	20	22	22	21	21	21	20	20	20	22	24	25	27	23	23	23	23	26	27	29	26	28	26	25
Feels °C (?)	20	22	20	19	22	21	21	21	21	23	23	24	25	22	23	23	23	26	26	28	26	29	26	25

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 The wind is still cross-on at Itaipu (light winds from the SSE at Rio de Janeiro Santos Dumont Airport 17 km from Itaipu). 1.4m 11s groundswell from the SE with a 0.7m 6s windswell from the SSW. 2 swells combining to make bigger set waves.
2 hours 19 minutes ago Itaipu

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17 km away, 2 h 19 min ago

15 km/h

SSE

0.0

21.8

Air / Water (°C)

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