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Surf Forecasts:
Itaipu surfForecast / São Paulo / Brazil
48hr Weather and Surf, issued 2 pm Monday 18 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: 0.4m 10s primary swell from a South-southeast direction and 0.2m 15s secondary swell from a South-southeast direction, 0.7m 4s secondary swell from a Southwest direction (forecast issued at 02:00pm May 18). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | 1.5ft (0.4m) | 10s |
| Evening (18 May) | 1ft (0.3m) | 15s |
Table - waves today at Itaipu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 14mm), heaviest on Mon night. Warm (max 21°C on Mon afternoon, min 19°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 10 | SSE 10 | SSE 10 | SSE 15 | S 7 | S 8 | S 8 | S 8 | S 7 | SSE 19 | SSE 18 | SSE 17 | SSE 16 | S 16 | SSE 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 14 | SSE 15 | SSE 16 | |
49 | 31 | 31 | 42 | 138 | 191 | 256 | 138 | 112 | 124 | 422 | 632 | 1195 | 1117 | 857 | 802 | 674 | 529 | 417 | 335 | 355 | 515 | 693 | 1195 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross-on | cross-on | glassy | glassy | cross-on | on | on | |
High Tide | 3:57PM1.21m | 3:29AM1.00m | 4:41PM1.11m | 4:02AM0.98m | 5:27PM0.99m | 4:41AM0.96m | ||||||||||||||||||
Low Tide | 9:49AM0.09m | 10:55PM0.50m | 10:29AM0.12m | 11:42PM0.62m | 11:20AM0.19m | 00:37AM0.70m | ||||||||||||||||||
 |  |  |  | | | |  | | | | | | | | | | | |  | | | | | |
 | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:35 | — |
 | — | 5:29 | — | — | — | — | — | — | — | 5:29 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | 5:28 |
— | — | — | 1 | 2 | 1 | 1 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 1 | 1 | 2 | 1 | |
Temp °C | 22 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 19 | 20 | 20 |
21 | 20 | 21 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 19 | 19 | 20 | 20 | 20 | 19 | 20 | 20 | 21 | 22 | 22 | 20 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | S 10 | SSE 10 | SSE 10 | S 10 | E 7 | SSE 13 | S 8 | S 8 | S 7 | S 7 | S 8 | SSE 17 | SSE 16 | S 16 | SSE 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 14 | SSE 15 | SSE 16 |
 kJ | 49 | 31 | 31 | 29 | 1 | 35 | 164 | 138 | 112 | 112 | 115 | 632 | 1195 | 1117 | 857 | 802 | 674 | 529 | 417 | 335 | 355 | 515 | 693 | 1195 |
Swell 2 Height (m) Direction Period (s) | S 16 | S 16 | SSE 15 | SSE 15 | E 7 | S 16 | SSE 13 | SSE 13 | SSE 20 | SSE 19 | SSE 18 | SSE 8 | S 7 | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 6 | — | E 7 |
| kJ | 5 | 19 | 21 | 42 | 1 | 5 | 17 | 33 | 38 | 124 | 422 | 120 | 131 | 36 | 36 | 33 | 24 | 23 | 23 | 18 | 16 | 13 | — | 4 |
Swell 3 Height (m) Direction Period (s) | SE 4 | — | — | — | — | E 7 | S 16 | S 21 | SSE 15 | SSE 15 | SSE 18 | E 7 | SE 7 | — | E 7 | — | — | — | — | — | E 8 | — | — | — |
| kJ | 1 | — | — | — | — | 1 | 20 | 9 | 22 | 42 | 340 | 1 | 89 | — | 4 | — | — | — | — | — | 5 | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 3 | SSW 4 | SW 4 | SSW 5 | S 7 | S 8 | S 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 6 | — |
| kJ | 3 | 21 | 20 | 19 | 138 | 191 | 256 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 152 | 71 | 41 | 20 | 50 | 41 | 0 | 0 | 12 | 7 | 0 | 25 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 0 | 0 | 41 | 129 | 10 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
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