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Surf Forecasts:
Itaipu surfForecast / Rio de Janeiro / Brazil
48hr Weather and Surf, issued 2 am Sunday 17 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
23.2° C
(Which is slightly cooler than normal)How big are the waves at Itaipu today?
The current surf forecast for Itaipu at 5AM is: 1.3m 11s primary swell from a South direction and 0.1m 12s secondary swell from a Southeast direction (forecast issued at 02:00am May 17). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 4ft (1.2m) | 11s |
| 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 ForecastModerate rain (total 18mm), heaviest on Tue afternoon. Warm (max 24°C on Mon morning, min 20°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 15 | S 15 | S 14 | SSW 9 | SW 8 | SW 8 | S 19 | S 18 | |
410 | 410 | 410 | 338 | 338 | 332 | 332 | 274 | 223 | 214 | 167 | 161 | 125 | 94 | 92 | 90 | 68 | 104 | 92 | 135 | 588 | 543 | 362 | 915 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | cross-off | glassy | cross | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | on | cross-on | off | glassy | glassy | glassy | on | cross-on | cross-on | cross-on | on | on | cross-on | |
High Tide | 4:04PM1.07m | 2:07AM0.88m | 4:53PM1.03m | 2:39AM0.91m | 5:45PM0.96m | |||||||||||||||||||
Low Tide | 8:47AM-0.13m | 9:23PM0.19m | 9:32AM-0.15m | 10:07PM0.27m | 10:19AM-0.15m | |||||||||||||||||||
 | | |  | |  |  | |  | | |  | |  | | |  |  | | |  | | | | |
 | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — |
 | — | — | — | — | — | 5:17 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — |
— | — | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | 1 | — | — | — | 1 | 4 | 3 | 2 | |
Temp °C | 22 | 22 | 21 | 22 | 23 | 23 | 23 | 22 | 22 | 21 | 22 | 23 | 24 | 23 | 24 | 23 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 |
24 | 24 | 22 | 25 | 24 | 24 | 24 | 25 | 24 | 21 | 24 | 26 | 25 | 25 | 27 | 26 | 26 | 24 | 24 | 21 | 21 | 20 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | SSW 6 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 |
 kJ | 410 | 410 | 410 | 338 | 338 | 332 | 332 | 274 | 223 | 214 | 167 | 161 | 125 | 94 | 92 | 90 | 65 | 87 | 24 | 135 | 388 | 385 | 298 | 240 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | E 7 | E 4 | E 4 | E 4 | S 19 | ENE 4 | S 17 | S 16 | S 16 | S 15 | S 15 | S 15 | S 9 | S 13 | S 13 | S 13 | S 19 | S 18 |
| kJ | 6 | 6 | 6 | 6 | 6 | 6 | 1 | 2 | 1 | 1 | 7 | 2 | 22 | 21 | 45 | 72 | 68 | 104 | 42 | 55 | 54 | 50 | 362 | 915 |
Swell 3 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | SE 12 | SE 12 | S 18 | E 7 | E 7 | E 7 | E 7 | S 19 | — | — | E 7 | E 7 | E 7 | E 7 | S 14 | S 16 | S 16 | S 15 | S 15 | E 7 |
| kJ | 1 | 1 | 1 | 1 | 6 | 6 | 6 | 1 | 1 | 1 | 1 | 7 | — | — | 4 | 4 | 4 | 4 | 92 | 46 | 45 | 72 | 104 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 3 | W 3 | ENE 5 | N 3 | — | — | W 3 | WSW 2 | — | SW 6 | — | SW 6 | SW 8 | SW 8 | WSW 6 | WSW 6 |
| kJ | — | — | — | — | — | — | — | — | 2 | 2 | 2 | 1 | — | — | 1 | 1 | — | 30 | — | 24 | 588 | 543 | 54 | 64 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 34 | 34 | 20 | 48 | 20 | 5 | 0 | 20 | 48 | 0 | 0 | 0 | 0 | 0 | 102 | 48 | 133 | 48 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
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