Surf Forecasts:
How big are the waves at Itaipu today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 4ft (1.2m), 11s period with S swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.1m), 11s period with S swell.
- Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.1m), 10s period with S swell.
The current surf forecast for Itaipu at 2AM is: 1.4m 10s primary swell from a South direction (forecast issued at 08:00pm September 17). An open ocean swell of 0.4m 9s is not directed at the surf break, a second open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 4ft (1.2m) | 11s |
| Afternoon (18 Sep) | 3.5ft (1.1m) | 11s |
| Evening (18 Sep) | 3.5ft (1.1m) | 10s |
Table - waves today at Itaipu. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 24°C on Sun afternoon, min 18°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | ||||||||||||||||
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 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 |
Wave Graph  | ||||||||||||||||||
 kJ | 736 | 673 | 379 | 452 | 367 | 332 | 338 | 279 | 274 | 264 | 244 | 198 | 156 | 153 | 118 | 113 | 83 | 60 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:11PM0.94m | 7:41AM0.98m | 6:49PM0.95m | 8:12AM0.96m | 7:29PM0.96m | |||||||||||||
Low Tide | 1:16AM-0.09m | 1:44PM0.15m | 2:05AM-0.09m | 2:32PM0.16m | ||||||||||||||
 | | | |  | |  | | | |  | |  | | | | |  | |
 | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:46 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 18 | 18 | 18 | 18 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 20 | 23 | 23 | 21 | 19 |
Feels °C | 17 | 16 | 17 | 17 | 17 | 17 | 18 | 17 | 16 | 17 | 17 | 16 | 17 | 19 | 21 | 20 | 19 | 17 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 |
| kJ | 736 | 673 | 379 | 452 | 367 | 332 | 338 | 279 | 274 | 264 | 244 | 198 | 156 | 153 | 118 | 113 | 83 | 60 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 9 | S 12 | ESE 9 | ESE 8 | ESE 8 | SE 8 | — | — | ESE 9 | ESE 9 | ESE 10 | ESE 10 | S 15 | S 15 | S 15 | S 14 | S 13 |
| kJ | 29 | 29 | 138 | 29 | 28 | 28 | 18 | — | — | 16 | 16 | 9 | 9 | 5 | 4 | 4 | 15 | 32 |
Swell 3 Height (m) Direction Period (s) | SE 8 | — | ESE 9 | S 12 | — | — | — | — | — | — | — | — | — | S 15 | S 15 | — | — | — |
| kJ | 2 | — | 30 | 47 | — | — | — | — | — | — | — | — | — | 4 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | E 4 | E 4 | E 4 | ESE 5 | ESE 5 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 6 |
| kJ | — | 19 | 27 | 38 | 28 | 44 | 60 | 100 | 124 | 102 | 87 | 69 | 69 | 86 | 86 | 113 | 192 | 182 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 12 | 12 | 5 | 0 | 0 | 5 | 12 | 172 | 172 | 43 | 12 | 5 | 5 | 0 | 43 | 172 | 172 | 45 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||
Header Global | ||||||||||||||||||
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Live Wave Height (m)
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