Surf Forecasts:
How big are the waves at Itaipu today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 4.5ft (1.3m), 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 11AM is: 1.2m 11s primary swell from a South direction (forecast issued at 08:00am September 18). An open ocean swell of 0.4m 8s is not directed at the surf break, a second open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 4.5ft (1.3m) | 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 ForecastSome drizzle, heaviest during Sun night. Warm (max 26°C on Sun afternoon, min 18°C on Fri night). Winds decreasing (fresh winds from the E on Fri afternoon, light winds from the NNE by Sun morning). | ||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||||||||
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 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 | S 9 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 426 | 389 | 338 | 279 | 274 | 264 | 202 | 198 | 158 | 153 | 118 | 113 | 83 | 60 | 58 | 51 | 50 | 50 | 103 | 69 | 68 | 44 |
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 | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross | cross-off | off | off |
High Tide | 7:41AM0.98m | 6:49PM0.95m | 8:12AM0.96m | 7:29PM0.96m | 8:48AM0.93m | 8:13PM0.96m | ||||||||||||||||
Low Tide | 1:44PM0.15m | 2:05AM-0.09m | 2:32PM0.16m | 2:55AM-0.07m | 3:22PM0.18m | |||||||||||||||||
 | |  | |  | | | |  | | | |  |  | | | | | | | |  | |
 | 5:46 | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 18 | 19 | 21 | 20 | 19 | 19 | 19 | 18 | 18 | 20 | 23 | 23 | 20 | 19 | 19 | 18 | 18 | 21 | 24 | 25 | 26 | 23 |
Feels °C | 17 | 18 | 19 | 17 | 15 | 17 | 17 | 16 | 17 | 19 | 21 | 20 | 17 | 16 | 17 | 16 | 17 | 22 | 24 | 25 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | 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 | S 9 | S 9 | E 7 | E 7 | E 7 | E 7 | S 12 | E 8 |
| kJ | 426 | 389 | 338 | 279 | 274 | 264 | 202 | 198 | 158 | 153 | 118 | 113 | 83 | 60 | 58 | 41 | 161 | 176 | 155 | 134 | 68 | 265 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 8 | SE 8 | — | — | — | ESE 10 | ESE 10 | ESE 10 | S 15 | S 15 | S 15 | S 14 | S 13 | S 13 | S 13 | S 9 | S 13 | S 12 | S 12 | SE 14 | S 12 |
| kJ | 28 | 28 | 18 | — | — | — | 20 | 9 | 20 | 5 | 4 | 4 | 15 | 32 | 32 | 51 | 40 | 50 | 103 | 69 | 7 | 44 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 15 | SSW 10 | — | — | — | SE 11 | SE 12 | S 13 | S 9 | S 9 | SE 14 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 4 | 10 | — | — | — | 5 | 5 | 50 | 26 | 2 | 7 | — | — |
Wind waves Height (m) Direction Period (s) | 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 | E 6 | E 7 | — | — | E 8 | — | ESE 8 | E 7 |
| kJ | 18 | 23 | 47 | 107 | 124 | 111 | 106 | 77 | 79 | 72 | 74 | 117 | 170 | 176 | 190 | 176 | — | — | 358 | — | 226 | 302 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 5 | 5 | 0 | 5 | 12 | 172 | 172 | 43 | 12 | 12 | 5 | 0 | 43 | 172 | 172 | 0 | 0 | 0 | 0 | 0 | 0 | 190 |
Best forecast wave conditions in Rio de Janeiro | ||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||
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