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Surf Forecasts:
Itaipu surfForecast / São Paulo / Brazil
48hr Weather and Surf, issued 2 pm Wednesday 20 May 2026 -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
22.7° C
(Which is normal for this time of year)How big are the waves at Itaipu today?
The current surf forecast for Itaipu at 6PM is: 1.1m 13s primary swell from a South direction and 0.4m 6s secondary swell from a Southeast direction (forecast issued at 02:00pm May 20). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | - | - |
| Afternoon (20 May) | 4ft (1.2m) | 14s |
| Evening (20 May) | 3.5ft (1.1m) | 13s |
Table - waves today at Itaipu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 23mm), heaviest during Sat morning. Warm (max 20°C on Wed afternoon, min 18°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 14 | S 14 | S 13 | S 13 | S 13 | SSE 15 | SSE 15 | SSE 16 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | S 14 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | S 14 | S 14 | |
674 | 518 | 417 | 404 | 427 | 639 | 796 | 1003 | 1474 | 1622 | 1641 | 1554 | 1363 | 1325 | 990 | 1474 | 1418 | 1152 | 1121 | 980 | 966 | 874 | 577 | 537 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | glassy | glassy | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | glassy | glassy | cross | cross | cross | |
High Tide | 5:27PM0.99m | 4:41AM0.96m | 6:20PM0.88m | 10:54PM0.79m | 5:28AM0.93m | 7:28PM0.81m | 11:42PM0.81m | 6:29AM0.88m | ||||||||||||||||
Low Tide | 11:20AM0.19m | 00:37AM0.70m | 12:30PM0.26m | 9:38PM0.79m | 1:43AM0.74m | 1:53PM0.32m | 9:26PM0.78m | 2:54AM0.73m | ||||||||||||||||
 |  |  |  |  | |  |  | | | | | | | |  | | | | | | | | | |
 | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — |
 | — | 5:28 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:27 | — | — | — | — | — | 5:27 |
— | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 1 | — | — | — | 2 | 2 | |
Temp °C | 21 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 |
21 | 20 | 21 | 22 | 22 | 20 | 19 | 18 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 20 | 21 | 21 | 22 | 20 | 20 | 18 | 19 | |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 13 | S 13 | S 13 | SSE 15 | SSE 15 | SSE 16 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | S 14 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | S 14 | S 14 |
 kJ | 674 | 518 | 417 | 404 | 427 | 639 | 796 | 1003 | 1474 | 1622 | 1641 | 1554 | 1363 | 1325 | 990 | 1474 | 1418 | 1152 | 1121 | 980 | 966 | 874 | 577 | 537 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | E 8 | E 8 | E 8 | — | — | — | — | — | SSE 18 | SSE 18 | E 8 | E 8 | — | — | — | — | ESE 6 | SE 6 | ESE 6 |
| kJ | 18 | 18 | 11 | 8 | 8 | 5 | 5 | 5 | — | — | — | — | — | 180 | 322 | 5 | 5 | — | — | — | — | 60 | 54 | 51 |
Swell 3 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SE 6 | SE 5 | SSE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | E 6 | — | WSW 3 |
| kJ | — | — | — | — | — | 11 | 7 | 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | 125 | — | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 21 | 152 | 41 | 0 | 0 | 41 | 57 | 10 | 10 | 57 | 10 | 6 | 6 | 6 | 6 | 5 | 6 | 6 | 4 | 0 | 0 | 4 | 23 | 14 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
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