Itaipu surfForecast / Rio de Janeiro / Brazil

information circle48hr Weather and Surf, issued 2 pm Sunday 17 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
23.2° C
(Which is slightly cooler than normal)

How big are the waves at Itaipu today?

The current surf forecast for Itaipu at 7PM is: 1.1m 11s primary swell from a South direction (forecast issued at 02:00pm May 17). An open ocean swell of 0.1m 7s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (17 May)--
Afternoon (17 May)4ft (1.2m)11s
Evening (17 May)3.5ft (1.1m)11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 32mm), heaviest during Mon night. Warm (max 25°C on Sun afternoon, min 20°C on Tue night). Wind will be generally light.

Sun
17
Monday
18
Tuesday
19
Wed
20
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)
1
1
0
0
0
2
1
1
1
0
1
1
1
0
0
0
0
0
0
2
2
3
3
3
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)
1.2
S
11
1.2
S
11
1.1
S
11
1.1
S
11
1
S
11
1
S
10
0.9
S
10
0.9
S
10
0.8
S
10
0.7
S
10
0.7
S
10
0.4
S
15
0.4
S
15
0.5
S
14
0.5
S
14
0.5
S
13
0.9
SSW
9
2.1
SW
8
2
SSW
8
0.9
S
18
1.5
S
18
1.8
S
16
2
S
16
2.1
S
15
Wave Graph
Metric surfscale
Energy kJ
338
332
279
274
223
214
167
161
123
92
90
72
68
103
92
85
149
649
525
520
1351
1647
1933
2051
Wind (km/h)
10
SSE
10
SE
10
S
10
WNW
15
W
10
N
5
NE
5
WNW
5
SSE
10
SW
5
SSW
5
SSE
0
WNW
10
SW
15
SW
20
WSW
20
WSW
25
WSW
25
WSW
15
W
10
WNW
10
NW
10
NW
10
NW
cross
cross
cross-on
cross-on
cross-on
cross-off
off
glassy
glassy
on
glassy
glassy
glassy
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
cross
cross
High Tide
4:04PM1.07m
2:07AM0.88m
4:53PM1.03m
2:39AM0.91m
5:45PM0.96m
3:19AM0.94m
Low Tide
9:23PM0.19m
9:32AM-0.15m
10:07PM0.27m
10:19AM-0.15m
10:52PM0.34m
clear
part cloud
thunderstorm
light rain
part cloud
cloud
cloud
part cloud
cloud
light rain
light rain
mod rain
light rain
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:17
5:16
5:16
5:16
2
1
3
5
6
3
2
1
1
3
2
1
1
Temp °C
23
25
23
22
22
21
21
22
24
22
21
21
21
21
22
22
21
22
21
21
21
21
20
20
25
26
25
24
23
23
23
25
27
24
24
25
25
23
23
22
20
21
20
22
23
23
21
22
Swell 1
Height (m)
Direction
Period (s)
1.2
S
11
1.2
S
11
1.1
S
11
1.1
S
11
1
S
11
1
S
10
0.9
S
10
0.9
S
10
0.8
S
10
0.7
S
10
0.7
S
10
0.6
S
10
0.6
S
10
0.6
S
9
0.6
S
9
0.5
S
9
0.9
SSW
9
1.7
SSW
9
1.7
SSW
8
1.6
SSW
8
1.5
S
18
1.8
S
16
2
S
16
2.1
S
15
Energy kJ
338
332
279
274
223
214
167
161
123
92
90
65
64
62
61
45
149
407
394
318
1351
1647
1933
2051
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
SE
12
0.1
E
7
0.1
E
7
0.2
E
4
0.2
E
4
0.3
E
5
0.2
E
5
0.2
E
5
0.2
S
16
0.3
S
16
0.4
S
15
0.4
S
15
0.5
S
14
0.5
S
14
0.5
S
13
0.4
S
13
0.4
S
15
0.7
S
19
0.9
S
18
1.5
S
8
1.6
S
8
1.6
S
8
1.5
S
8
Energy kJ
6
6
1
1
1
2
4
2
2
21
45
72
68
103
92
85
54
72
362
520
309
334
313
266
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
12
0.1
SE
12
0.1
S
18
0.1
E
7
0.1
E
7
0.1
S
19
0.1
S
19
0.2
S
17
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.2
E
7
0.1
E
7
0.3
S
16
0.3
S
16
0.4
S
20
0.5
S
15
0.8
S
15
0.1
SE
12
0.1
SE
12
0.1
SE
12
Energy kJ
6
6
6
1
1
7
7
22
4
4
4
4
4
1
46
45
124
104
267
6
6
5
Wind waves
Height (m)
Direction
Period (s)
0.3
WSW
3
0.3
WNW
3
0.3
W
3
0.3
NNW
3
0.2
WSW
3
0.4
SW
4
0.6
SW
5
0.9
SW
6
1.1
SW
6
2.1
SW
8
2
SSW
8
Energy kJ
2
2
2
1
1
4
14
50
80
649
525
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
1
2
1
1
1
1
1
1
1
1
1
1
3
2
3
3
4
4
4
4
Distance (km)
34
34
34
5
20
0
0
0
0
78
0
0
0
48
48
48
48
210
48
20
5
5
5
5
Best forecast wave conditions in Rio de Janeiro
Rating
(10 max)
2
2
2
2
2
2
2
1
1
1
1
1
1
1
1
1
3
3
4
4
4
4
5
Best forecast wave conditions in Brazil
Rating
(10 max)
2
2
2
2
2
2
2
1
2
2
2
1
2
3
3
3
4
4
4
4
4
4
4
5
Header Global
Rating
(10 max)
8
6
4
4
5
7
5
4
5
4
4
4
4
4
4
4
4
4
4
4
5
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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