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Surf Forecasts:
Itaipu surfForecast / Rio de Janeiro / Brazil
48hr Weather and Surf, issued 8 am 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 3PM is: 2.2m 14s primary swell from a South direction (forecast issued at 08:00am 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) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 8ft (2.4m) | 15s |
| 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 ForecastModerate rain (total 18mm), heaviest on Wed night. Warm (max 22°C on Wed afternoon, min 19°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 16 | S 15 | S 14 | S 14 | 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 | |
2789 | 2683 | 2155 | 1918 | 1686 | 1285 | 1110 | 1237 | 1649 | 1869 | 2168 | 2944 | 3746 | 3764 | 3519 | 3423 | 3148 | 2651 | 2846 | 2791 | 2787 | 2541 | 2545 | 2326 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | |
High Tide | 3:19AM0.94m | 6:43PM0.90m | 4:06AM0.95m | 7:49PM0.85m | 5:01AM0.95m | 8:53PM0.82m | ||||||||||||||||||
Low Tide | 11:10AM-0.11m | 11:39PM0.38m | 12:05PM-0.06m | 00:31AM0.39m | 1:03PM-0.01m | 1:27AM0.37m | ||||||||||||||||||
 |  | |  |  | | | | | | | | |  | | | |  | |  | | | |  | |
 | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | 6:20 |
 | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:15 | — | — | — | 5:15 |
1 | 1 | 1 | 1 | 1 | 3 | 2 | 1 | 1 | 1 | 3 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 21 | 21 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 21 | 21 | 21 | 21 | 21 | 20 |
23 | 23 | 22 | 21 | 22 | 24 | 23 | 22 | 20 | 21 | 19 | 18 | 19 | 21 | 20 | 20 | 20 | 20 | 22 | 20 | 19 | 20 | 21 | 20 | |
Swell 1 Height (m) Direction Period (s) | S 16 | S 15 | S 14 | S 14 | 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 |
 kJ | 2789 | 2683 | 2155 | 1918 | 1686 | 1285 | 1110 | 1237 | 1649 | 1869 | 2168 | 2944 | 3746 | 3764 | 3519 | 3423 | 3148 | 2651 | 2846 | 2791 | 2787 | 2541 | 2545 | 2326 |
Swell 2 Height (m) Direction Period (s) | SE 12 | — | — | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | — | — | S 18 | E 9 | E 9 | — | — | — | — |
| kJ | 6 | — | — | 5 | 5 | 5 | 1 | 1 | 1 | 5 | 5 | 5 | 5 | — | — | — | — | 408 | 6 | 6 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SE 5 | — | — | SSE 5 | SSE 5 | — | — | — | — | — | — | — | — | — | E 4 | E 9 | ESE 5 | E 5 |
| kJ | — | — | — | — | — | — | 7 | — | — | 19 | 15 | — | — | — | — | — | — | — | — | — | 13 | 6 | 69 | 78 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 5 | 5 | 48 | 48 | 108 | 108 | 12 | 110 | 102 | 110 | 121 | 121 | 121 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 12 | 12 | 12 | 0 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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