Itaipu surfForecast / Rio de Janeiro / Brazil

information circle48hr Weather and Surf, issued 8 pm Friday 15 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
23.1° C
(Which is 1.0°C colder than average for this time of year)

How big are the waves at Itaipu today?

The current surf forecast for Itaipu at 4AM is: 1.6m 12s primary swell from a South direction (forecast issued at 08:00pm May 15). An open ocean swell of 0.2m 8s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 3.

Time (-03) & DateWave HeightWave Period
Morning (16 May)4.5ft (1.4m)12s
Afternoon (16 May)4.5ft (1.4m)11s
Evening (16 May)4.5ft (1.3m)11s

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 7mm), mostly falling on Sun afternoon. Warm (max 25°C on Mon afternoon, min 21°C on Fri night). Wind will be generally light.

Fri
15
Saturday
16
Sunday
17
Monday
18
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
12 PM
3 PM
Rating
(10 max)
2
1
3
3
3
3
0
1
2
2
2
2
2
2
1
0
1
1
2
1
1
0
0
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.8
S
13
1.8
S
12
1.7
S
12
1.6
S
12
1.5
S
12
1.4
SSW
12
1.4
SSW
11
1.4
S
11
1.3
S
11
1.3
S
11
1.3
S
11
1.3
S
11
1.3
S
11
1.3
S
11
1.2
S
11
1.2
S
11
1.2
S
11
1
S
11
1
S
11
0.9
S
10
0.9
S
10
0.8
S
10
0.8
S
10
0.7
S
10
Wave Graph
Metric surfscale
Energy kJ
1053
1020
870
736
639
532
486
466
403
410
410
410
403
396
338
332
332
227
220
175
165
125
125
92
Wind (km/h)
15
WSW
15
W
5
NNW
5
WNW
5
N
5
N
15
SSE
15
SSE
10
ESE
10
E
10
ENE
10
ENE
5
NE
5
NNE
10
S
20
SW
10
W
20
N
10
NNW
5
ENE
5
NW
20
WSW
10
WSW
5
NNW
on
cross-on
cross-off
glassy
glassy
glassy
cross-on
cross
cross-off
cross-off
off
cross-off
off
glassy
cross-on
on
cross-on
cross-off
cross-off
glassy
glassy
cross-on
cross-on
glassy
High Tide
2:17AM0.88m
3:15PM1.09m
1:50AM0.86m
4:04PM1.07m
2:07AM0.88m
Low Tide
7:52PM0.03m
8:03AM-0.09m
8:38PM0.10m
8:47AM-0.13m
9:23PM0.19m
9:32AM-0.15m
part cloud
cloud
cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
rain showers
rain showers
thunderstorm
rain showers
part cloud
part cloud
cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:17
5:17
5:16
2
3
1
1
Temp °C
22
22
21
21
21
22
22
23
23
22
22
21
21
22
23
22
22
22
22
22
22
23
23
25
23
23
23
24
24
25
23
24
25
24
24
23
24
25
25
22
24
23
24
25
25
24
25
28
Swell 1
Height (m)
Direction
Period (s)
1.8
S
13
1.8
S
12
1.7
S
12
1.6
S
12
1.5
S
12
1.4
SSW
12
1.4
SSW
11
1.4
S
11
1.3
S
11
1.3
S
11
1.3
S
11
1.3
S
11
1.3
S
11
1.3
S
11
1.2
S
11
1.2
S
11
1.2
S
11
1
S
11
1
S
11
0.9
S
10
0.9
S
10
0.8
S
10
0.8
S
10
0.7
S
10
Energy kJ
1053
1020
870
736
639
532
486
466
403
410
410
410
403
396
338
332
332
227
220
175
165
125
125
92
Swell 2
Height (m)
Direction
Period (s)
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.2
E
8
0.1
E
8
0.1
E
8
0.1
SE
13
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
SE
12
0.1
E
7
0.4
SSE
6
0.1
E
7
0.1
E
7
0.2
E
7
0.2
E
7
0.2
S
16
Energy kJ
5
5
5
5
5
1
1
6
6
6
6
6
6
6
6
6
1
10
1
1
4
4
21
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
13
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
E
7
0.1
E
7
0.1
SE
12
0.1
S
18
0.1
E
7
0.1
S
19
0.1
S
19
0.1
S
19
0.2
S
17
0.2
E
7
Energy kJ
7
7
7
7
7
7
7
1
1
1
1
1
1
1
1
6
6
1
7
7
7
22
4
Wind waves
Height (m)
Direction
Period (s)
0.2
ENE
7
0.4
ENE
3
0.4
ENE
3
0.3
NE
7
0.2
ENE
5
0.4
W
3
0.4
SW
3
Energy kJ
5
4
3
8
2
2
2
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
3
3
3
2
2
2
2
2
2
2
2
2
2
1
2
2
1
1
1
1
1
Distance (km)
48
20
0
0
0
0
114
34
0
0
0
0
0
0
34
90
20
5
0
0
0
48
48
0
Best forecast wave conditions in Rio de Janeiro
Rating
(10 max)
3
3
4
3
3
3
2
3
2
3
2
2
2
2
2
2
2
2
2
2
1
1
1
1
Best forecast wave conditions in Brazil
Rating
(10 max)
3
3
4
3
3
3
2
3
2
3
2
2
2
2
2
2
2
2
2
2
2
2
1
3
Header Global
Rating
(10 max)
5
5
5
5
4
5
6
6
5
4
5
4
7
9
9
4
4
4
4
5
4
4
4
4
  • 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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