Itaipu surfForecast / Rio de Janeiro / Brazil

information circle48hr Weather and Surf, issued 2 pm Wednesday 20 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
23.7° C
(Which is normal for this time of year)

How big are the waves at Itaipu today?

The current surf forecast for Itaipu at 8PM is: 2.0m 14s primary swell from a South direction (forecast issued at 02:00pm May 20). An open ocean swell of 0.2m 8s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (20 May)--
Afternoon (20 May)7ft (2.2m)14s
Evening (20 May)6ft (1.9m)13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 16mm), heaviest on Wed night. Warm (max 24°C on Sat morning, min 19°C on Thu night). Wind will be generally light.

Wed
20
Thursday
21
Friday
22
Sat
23
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
12 AM
3 AM
6 AM
9 AM
Rating
(10 max)
3
1
0
3
3
2
2
2
1
1
3
4
5
5
5
5
4
3
3
3
4
4
4
4
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.3
S
14
2.2
S
14
2.1
S
14
1.9
S
13
1.8
S
13
1.9
S
13
2
S
14
2.1
S
15
2.3
S
15
2.5
S
16
2.5
S
16
3
S
15
3
S
15
3
S
14
3
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.4
S
14
2.4
S
14
2.3
S
14
2
S
14
Wave Graph
Metric surfscale
Energy kJ
2155
1918
1710
1285
1110
1237
1649
1869
2334
2944
3483
3510
3519
3423
3160
2651
2651
2753
2577
2541
2346
2326
2137
1559
Wind (km/h)
5
W
20
WSW
20
WSW
10
WSW
5
SSW
10
SSW
10
S
15
S
20
S
15
S
15
SSE
10
SSE
5
E
5
NNE
10
N
5
N
5
ESE
15
SE
20
E
15
ENE
15
ENE
15
ENE
15
NE
5
N
cross-on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
cross-off
cross-off
glassy
cross
cross-off
cross-off
off
off
off
glassy
High Tide
6:43PM0.90m
4:06AM0.95m
7:49PM0.85m
5:01AM0.95m
8:53PM0.82m
6:04AM0.93m
Low Tide
11:10AM-0.11m
11:39PM0.38m
12:05PM-0.06m
00:31AM0.39m
1:03PM-0.01m
1:27AM0.37m
cloud
clear
thunderstorm
thunderstorm
thunderstorm
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:16
5:15
5:15
5:15
1
2
2
2
1
2
2
2
1
1
Temp °C
22
22
22
22
22
21
21
20
20
20
20
20
20
19
19
19
21
21
21
21
21
20
19
20
25
22
21
24
24
22
22
21
19
18
19
20
21
20
20
20
22
21
20
20
21
20
19
22
Swell 1
Height (m)
Direction
Period (s)
2.3
S
14
2.2
S
14
2.1
S
14
1.9
S
13
1.8
S
13
1.9
S
13
2
S
14
2.1
S
15
2.3
S
15
2.5
S
16
2.5
S
16
3
S
15
3
S
15
3
S
14
3
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.5
S
14
2.4
S
14
2.4
S
14
2.3
S
14
2
S
14
Energy kJ
2155
1918
1710
1285
1110
1237
1649
1869
2334
2944
3483
3510
3519
3423
3160
2651
2651
2753
2577
2541
2346
2326
2137
1559
Swell 2
Height (m)
Direction
Period (s)
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.1
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.3
E
8
0.8
S
18
0.2
E
9
0.2
E
9
0.8
SE
6
0.9
ESE
6
Energy kJ
5
5
5
5
1
5
5
5
5
12
408
6
6
47
51
Swell 3
Height (m)
Direction
Period (s)
0.3
E
8
Energy kJ
12
Wind waves
Height (m)
Direction
Period (s)
0.6
SSE
5
0.7
SSE
4
0.3
E
9
0.2
E
9
1.1
E
5
0.9
ESE
6
1.4
E
6
1.3
E
6
Energy kJ
14
20
14
6
50
55
117
104
Nearest Offshore or Glassy
Rating
(10 max)
3
4
3
4
2
4
4
4
4
4
4
3
5
5
5
5
4
4
3
4
4
4
4
4
Distance (km)
12
48
133
110
12
102
102
121
121
121
121
12
0
0
0
0
0
19
12
5
0
0
0
0
Best forecast wave conditions in Rio de Janeiro
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
4
4
4
4
4
4
4
Best forecast wave conditions in Brazil
Rating
(10 max)
4
4
3
7
4
5
5
4
4
5
5
5
5
5
5
5
5
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
4
5
5
5
5
5
5
5
5
5
4
4
5
7
8
7
6
5
5
5
5
6
8
9
  • 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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