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Surf Forecasts:
Itaipu surfForecast / Rio de Janeiro / Brazil
48hr Weather and Surf, issued 8 am Wednesday 10 Dec 2025 -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
25.1° C
(Which is slightly warmer than usual)How big are the waves at Itaipu today?
The current surf forecast for Itaipu at 11AM is: 0.2m 15s primary swell from a South direction and 0.6m 3s secondary swell from a Northwest direction (forecast issued at 08:00am December 10). An open ocean swell of 0.6m 7s is not directed at the surf break, a second open ocean swell of 0.3m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 0.5ft (0.2m) | 9s |
| Afternoon (10 Dec) | 2.5ft (0.8m) | 4s |
| Evening (10 Dec) | 1.5ft (0.4m) | 13s |
Table - waves today at Itaipu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 15 | 4 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 7 | 7 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 6 | 6 | 18 | 21 | 31 | 55 | 49 | 44 | 42 | 39 | 21 | 29 | 35 | 429 | 1249 | 1605 | 1605 | 1556 | 1302 | 1234 | 985 | 833 | 681 | 572 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross | cross | cross- off | off | off | cross- off | cross- off | cross | cross- off | cross- off | cross- on | off | glass |
High Tide / height (m) | 7:58AM 0.81 | 5:10PM 0.92 | 8:52AM 0.83 | 6:34PM 0.89 | 9:40AM 0.86 | 9:11PM 0.90 | ||||||||||||||||||
Low Tide / height (m) | 12:29PM 0.37 | 1:06AM 0.05 | 1:30PM 0.32 | 2:05AM 0.08 | 2:30PM 0.24 | |||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
| Sunrise | 4:58 | - | - | - | - | - | - | - | 4:58 | - | - | - | - | - | - | - | 4:58 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - |
 |  | | | |  | | | | | | | | | | | | | | |  |  |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 3 | - | - |
| Temp. °C | 25 | 30 | 32 | 33 | 31 | 29 | 28 | 26 | 26 | 30 | 27 | 27 | 25 | 25 | 24 | 23 | 23 | 27 | 28 | 27 | 25 | 23 | 23 | 23 |
| Feels °C (?) | 26 | 29 | 30 | 31 | 32 | 28 | 27 | 26 | 26 | 30 | 26 | 28 | 27 | 27 | 26 | 25 | 25 | 29 | 27 | 24 | 26 | 24 | 26 | 27 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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