Surf Forecasts:
How big are the waves at Itaipu today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 1.5ft (0.4m), 13s period with S swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 1.5ft (0.5m), 12s period with S swell.
- Evening surf: Evening surf (20 Sep, local time) - 1.5ft (0.4m), 12s period with S swell.
The current surf forecast for Itaipu at 4AM is: 0.4m 13s primary swell from a South direction and 0.5m 9s secondary swell from a South direction (forecast issued at 08:00pm September 19). An open ocean swell of 1.3m 7s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 1.5ft (0.4m) | 13s |
| Afternoon (20 Sep) | 1.5ft (0.5m) | 12s |
| Evening (20 Sep) | 1.5ft (0.4m) | 12s |
Table - waves today at Itaipu. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 32°C on Mon afternoon, min 18°C on Sat night). Winds increasing (light winds from the E on Sun morning, fresh winds from the WSW by Tue morning). | ||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | ||||||||||||||||
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 |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | S 9 | S 9 | S 9 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 |
Wave Graph  | ||||||||||||||||||
 kJ | 83 | 60 | 58 | 51 | 50 | 50 | 103 | 69 | 68 | 43 | 43 | 25 | 25 | 24 | 24 | 10 | 9 | 9 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off |
High Tide | 7:29PM0.96m | 8:48AM0.93m | 8:13PM0.96m | 9:32AM0.90m | 8:59PM0.96m | |||||||||||||
Low Tide | 2:55AM-0.07m | 3:22PM0.18m | 3:47AM-0.06m | 4:13PM0.20m | ||||||||||||||
 | | | |  | | | |  |  | |  |  |  | | | | | |
 | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 20 | 19 | 19 | 18 | 18 | 21 | 26 | 26 | 25 | 24 | 22 | 22 | 23 | 24 | 29 | 32 | 30 | 28 |
Feels °C | 17 | 16 | 17 | 17 | 17 | 20 | 27 | 26 | 24 | 26 | 22 | 23 | 22 | 24 | 28 | 33 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 9 | E 7 | E 7 | E 7 | E 7 | E 7 | S 12 | ESE 8 | E 7 | E 7 | ESE 7 | ESE 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 83 | 60 | 58 | 148 | 134 | 146 | 127 | 109 | 68 | 196 | 159 | 112 | 91 | 94 | 74 | 58 | 60 | 60 |
Swell 2 Height (m) Direction Period (s) | S 14 | S 13 | S 13 | S 9 | S 9 | S 13 | S 12 | S 12 | S 14 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 |
| kJ | 15 | 32 | 32 | 41 | 40 | 50 | 103 | 69 | 4 | 43 | 43 | 25 | 25 | 24 | 24 | 10 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 11 | S 13 | S 13 | S 9 | S 9 | E 14 | — | SE 14 | SE 14 | SE 14 | S 14 | — | NW 5 | — | SE 13 | E 14 |
| kJ | — | — | 5 | 51 | 50 | 25 | 2 | 4 | — | 7 | 7 | 7 | 4 | — | 1 | — | 7 | 4 |
Wind waves Height (m) Direction Period (s) | ESE 6 | E 6 | E 6 | — | — | — | E 7 | E 8 | E 7 | E 8 | E 8 | — | N 2 | — | — | E 8 | E 8 | E 8 |
| kJ | 140 | 146 | 166 | — | — | — | 310 | 282 | 134 | 442 | 358 | — | 1 | — | — | 144 | 148 | 208 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 172 | 45 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 5 | 17 | 17 | 17 | 17 | 12 | 12 | 12 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||
Header Global | ||||||||||||||||||
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