Itaipu surfForecast / Rio de Janeiro / Brazil

information circle48hr Weather and Surf, issued 2 am Sunday 31 May 2026 -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
23.3° C
(Which is normal for this time of year)

How big are the waves at Itaipu today (31 May):

  • Morning surf: Morning surf (31 May, local time) - 5ft (1.6m), 11s period with S swell.
  • Afternoon surf: Afternoon surf (31 May, local time) - 5ft (1.6m), 10s period with S swell.
  • Evening surf: Evening surf (31 May, local time) - 5ft (1.5m), 10s period with S swell.

The current surf forecast for Itaipu at 8AM is: 1.6m 11s primary swell from a South-southeast direction and 0.5m 3s secondary swell from a West direction (forecast issued at 02:00am May 31). An open ocean swell of 0.1m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (-03) & DateWave HeightWave Period
Morning (31 May)5ft (1.6m)11s
Afternoon (31 May)5ft (1.6m)10s
Evening (31 May)5ft (1.5m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 9mm), mostly falling on Tue night. Warm (max 22°C on Sun morning, min 18°C on Tue night). Wind will be generally light.

Sunday
31
Monday
1
Tuesday
2
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
3
2
2
1
0
0
0
1
0
1
2
1
0
0
0
0
1
0
0
0
0
0
0
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.7
SSE
11
1.6
SSE
11
1.6
SSE
11
1.6
S
11
1.5
S
11
1.6
S
10
1.5
S
10
1.5
S
10
1.4
S
10
1.4
S
10
1
S
10
0.9
SSE
10
1
S
10
0.9
SSE
10
1
SSE
10
0.8
SSE
9
1
SSE
9
0.9
SSE
10
0.9
SSE
10
0.8
SSE
10
0.9
SSE
10
0.9
SSE
10
0.7
SE
9
0.7
SE
9
Wave Graph
Metric surfscale
Energy kJ
619
611
622
606
516
545
461
461
402
394
204
169
186
154
209
108
168
145
145
117
132
150
86
83
Wind (km/h)
10
N
10
WNW
15
WNW
15
WNW
20
WSW
20
WSW
15
WSW
15
WSW
15
W
10
WNW
10
NNW
5
NW
15
SSW
15
SSW
15
SSW
10
SSW
5
WSW
10
W
10
W
15
WSW
20
SW
20
SW
10
SW
5
WSW
cross-off
cross
cross
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-off
cross
on
cross-on
cross-on
on
on
cross-on
cross-on
on
on
on
on
glassy
High Tide
2:49PM0.99m
1:23AM0.96m
3:04PM0.97m
2:00AM0.97m
3:26PM0.94m
Low Tide
8:04AM-0.14m
8:29PM0.14m
8:46AM-0.14m
9:13PM0.17m
9:31AM-0.11m
rain showers
clear
clear
rain showers
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
light rain
cloud
part cloud
rain showers
clear
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:14
5:14
5:14
1
1
1
1
1
2
Temp °C
20
20
20
21
22
22
22
21
21
20
19
20
21
21
22
22
21
21
21
21
21
21
21
20
21
21
20
21
21
21
21
20
21
21
20
21
21
20
22
22
22
22
22
21
19
19
21
21
Swell 1
Height (m)
Direction
Period (s)
1.7
SSE
11
1.6
SSE
11
1.6
SSE
11
1.6
S
11
1.5
S
11
1.6
S
10
1.5
S
10
1.5
S
10
1.4
S
10
1.4
S
10
1
S
10
0.9
SSE
10
1
S
10
0.9
SSE
10
1
SSE
10
0.8
SSE
9
1
SSE
9
0.9
SSE
10
0.9
SSE
10
0.8
SSE
10
0.9
SSE
10
0.9
SSE
10
0.7
SE
9
0.7
SSW
8
Energy kJ
619
611
622
606
516
545
461
461
402
394
204
169
186
154
209
108
168
145
145
117
132
150
86
68
Swell 2
Height (m)
Direction
Period (s)
0.1
E
7
0.1
E
7
0.1
E
7
0.1
E
7
0.1
E
7
0.1
E
7
0.1
S
17
0.9
SSE
10
0.8
SSW
10
0.6
SSE
10
0.6
S
10
0.5
S
9
0.6
SSE
11
0.5
S
9
0.5
S
9
0.5
S
9
0.5
S
9
0.5
S
9
0.4
S
9
0.4
S
8
0.7
SE
9
Energy kJ
1
1
1
1
1
1
5
173
136
64
65
43
81
42
42
42
39
38
24
23
83
Swell 3
Height (m)
Direction
Period (s)
0.4
ESE
6
0.3
ESE
6
0.3
ESE
6
0.4
SE
12
0.4
SSE
12
0.2
E
6
0.5
S
10
0.2
E
6
0.1
E
6
0.2
E
6
0.2
S
9
0.2
S
9
0.2
E
6
0.1
E
6
0.1
E
6
Energy kJ
13
8
7
38
56
3
47
2
1
3
6
6
3
1
1
Wind waves
Height (m)
Direction
Period (s)
0.7
ENE
4
0.4
WNW
3
0.5
W
4
0.7
WSW
4
0.6
SW
4
0.6
SW
4
0.9
SW
5
0.5
SW
3
0.5
SW
4
0.6
SSW
4
Energy kJ
13
3
6
15
12
15
47
5
6
11
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
2
2
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
0
5
5
5
48
48
48
110
20
5
0
5
102
102
102
102
12
20
48
48
102
102
102
0
Best forecast wave conditions in Rio de Janeiro
Rating
(10 max)
3
3
3
3
2
2
2
2
2
3
2
2
2
1
1
1
2
1
1
1
1
1
1
2
Best forecast wave conditions in Brazil
Rating
(10 max)
3
3
3
3
2
2
2
2
2
3
2
2
2
2
1
2
2
2
1
1
1
1
2
3
Header Global
Rating
(10 max)
7
7
6
6
5
5
5
5
5
5
5
4
5
5
5
8
5
4
5
4
6
4
4
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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