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Surf Forecasts:
Itaipu surfForecast / Rio de Janeiro / Brazil
48hr Weather and Surf, issued 8 pm Wednesday 20 May 2026 -03Forecast 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 4AM is: 1.9m 14s primary swell from a South direction and 0.5m 5s secondary swell from a Southeast direction (forecast issued at 08:00pm May 20). An open ocean swell of 0.1m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 7ft (2.1m) | 15s |
| Afternoon (21 May) | 8ft (2.5m) | 16s |
| Evening (21 May) | 10ft (3.0m) | 15s |
Table - waves today at Itaipu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 11mm), heaviest on Thu morning. Warm (max 24°C on Sat morning, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||||||||||
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 | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
S 14 | S 13 | S 13 | S 13 | S 14 | S 15 | S 15 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | |
1686 | 1285 | 1110 | 1110 | 1488 | 1869 | 2334 | 2944 | 3483 | 3510 | 3519 | 3423 | 3341 | 2817 | 2857 | 2765 | 2545 | 2545 | 2346 | 2121 | 2125 | 1902 | 1329 | 1124 | |
Wind (km/h) | ||||||||||||||||||||||||
on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-off | cross-off | glassy | glassy | cross | cross-off | cross-off | cross-off | off | off | off | glassy | cross-on | |
High Tide | 6:43PM0.90m | 4:06AM0.95m | 7:49PM0.85m | 5:01AM0.95m | 8:53PM0.82m | 6:04AM0.93m | ||||||||||||||||||
Low Tide | 11:39PM0.38m | 12:05PM-0.06m | 00:31AM0.39m | 1:03PM-0.01m | 1:27AM0.37m | 2:02PM0.04m | ||||||||||||||||||
 |  | | | |  | | |  | | | | |  |  | | | | | | | |  | | |
 | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — |
 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:15 |
— | 1 | 1 | 1 | 2 | 2 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 21 | 21 | 21 | 21 | 20 | 20 | 19 | 20 | 24 | 23 |
22 | 24 | 22 | 22 | 22 | 20 | 20 | 20 | 19 | 21 | 21 | 20 | 20 | 20 | 22 | 21 | 21 | 21 | 20 | 20 | 19 | 21 | 26 | 23 | |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | S 13 | S 13 | S 14 | S 15 | S 15 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 |
 kJ | 1686 | 1285 | 1110 | 1110 | 1488 | 1869 | 2334 | 2944 | 3483 | 3510 | 3519 | 3423 | 3341 | 2817 | 2857 | 2765 | 2545 | 2545 | 2346 | 2121 | 2125 | 1902 | 1329 | 1124 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | — | — | S 18 | E 9 | E 9 | E 9 | E 9 | — | E 9 | — | E 8 | ESE 6 | E 9 |
| kJ | 5 | 5 | 5 | 1 | 5 | 5 | 5 | 5 | 5 | — | — | — | — | 408 | 6 | 6 | 6 | 6 | — | 6 | — | 6 | 43 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SE 5 | SE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 6 | E 6 | E 6 | ESE 6 |
| kJ | — | — | 12 | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 91 | 91 | 94 | 41 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 133 | 13 | 110 | 110 | 110 | 121 | 121 | 121 | 121 | 0 | 0 | 0 | 0 | 0 | 0 | 34 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 34 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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