Surf Forecasts:
How big are the waves at Itaipu today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 1ft (0.3m), 12s period with S swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 0.5ft (0.2m), 11s period with S swell.
- Evening surf: Evening surf (21 Sep, local time) - 0.5ft (0.2m), 11s period with S swell.
The current surf forecast for Itaipu at 4PM is: 0.2m 11s primary swell from a South direction (forecast issued at 08:00am September 21). An open ocean swell of 0.7m 8s is not directed at the surf break, a second open ocean swell of 1.1m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 1ft (0.3m) | 12s |
| Afternoon (21 Sep) | 0.5ft (0.2m) | 11s |
| Evening (21 Sep) | 0.5ft (0.2m) | 11s |
Table - waves today at Itaipu. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 25mm), heaviest during Wed night. Warm (max 32°C on Mon afternoon, min 19°C on Wed afternoon). Mainly fresh winds. | ||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 12 | WSW 4 | WSW 4 | WSW 5 | SW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 7 | SSW 7 | S 7 | S 12 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 25 | 24 | 24 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 3 | 15 | 22 | 17 | 21 | 19 | 21 | 26 | 53 | 199 | 303 | 411 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | on | on | cross-on | on | cross-off | on | cross-on | glassy | cross-on | cross-on | cross-on | cross |
High Tide | 9:32AM0.90m | 8:59PM0.96m | 10:36AM0.88m | 9:50PM0.95m | 1:03PM0.88m | |||||||||||||||||
Low Tide | 3:47AM-0.06m | 4:13PM0.20m | 4:40AM-0.04m | 5:06PM0.21m | 5:34AM-0.03m | 5:59PM0.22m | ||||||||||||||||
 | |  |  |  | |  | | | | | |  |  | |  |  | | | | |  | |
 | 5:43 | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — |
 | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | 1 | — | 2 | 2 | — | 1 | 4 | 9 |
Temp °C | 24 | 25 | 28 | 32 | 29 | 28 | 27 | 25 | 25 | 28 | 25 | 23 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 19 | 19 |
Feels °C | 22 | 26 | 29 | 33 | 29 | 29 | 27 | 25 | 25 | 28 | 25 | 22 | 22 | 21 | 24 | 23 | 23 | 24 | 21 | 18 | 15 | 19 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | E 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSW 5 | SSW 5 | SSW 5 | SSW 7 | SSW 7 | SSW 13 | SSW 8 |
| kJ | 71 | 71 | 73 | 72 | 57 | 60 | 62 | 77 | 79 | 85 | 86 | 68 | 68 | 68 | 50 | 19 | 21 | 26 | 53 | 101 | 273 | 300 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 12 | S 11 | E 8 | E 8 | E 8 | E 8 | E 9 | ESE 9 | S 12 |
| kJ | 25 | 24 | 24 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 2 | 2 | 2 | 11 | 10 | 50 | 36 | 36 | 37 | 39 | 27 | 411 |
Swell 3 Height (m) Direction Period (s) | SE 14 | — | NW 4 | — | SE 13 | SE 14 | — | S 14 | S 14 | SE 13 | S 12 | S 12 | S 12 | — | — | S 11 | S 11 | ESE 13 | ESE 13 | SSW 13 | SE 12 | S 19 |
| kJ | 7 | — | 1 | — | 7 | 8 | — | 4 | 4 | 7 | 3 | 3 | 3 | — | — | 10 | 9 | 17 | 17 | 60 | 24 | 181 |
Wind waves Height (m) Direction Period (s) | — | — | — | E 8 | E 8 | — | — | — | — | — | NNW 2 | WSW 4 | WSW 4 | WSW 5 | SW 5 | — | — | — | — | SSW 7 | S 7 | SE 6 |
| kJ | — | — | — | 137 | 137 | — | — | — | — | — | 1 | 15 | 22 | 17 | 21 | — | — | — | — | 199 | 303 | 82 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 20 | 17 | 17 | 12 | 12 | 17 | 17 | 17 | 17 | 17 | 102 | 102 | 48 | 48 | 23 | 23 | 34 | 20 | 90 | 102 | 172 | 34 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||
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