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Praia dos Castelhanos (Ilha Bela) surfForecast / São Paulo / Brazil
48hr Weather and Surf, issued 2 am Wednesday 20 May 2026 -03Forecast update in hr min s Forecast update imminent
Praia dos Castelhanos (Ilha Bela) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Praia dos Castelhanos (Ilha Bela) sea temperature is
24.2° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Praia dos Castelhanos (Ilha Bela) today?
The current surf forecast for Praia dos Castelhanos (Ilha Bela) at 6AM is: 1.9m 16s primary swell from a South-southeast direction and 0.2m 7s secondary swell from a East direction (forecast issued at 02:00am May 20). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 6ft (1.8m) | 15s |
| Afternoon (20 May) | 5ft (1.6m) | 14s |
| Evening (20 May) | 4.5ft (1.3m) | 13s |
Table - waves today at Praia dos Castelhanos (Ilha Bela). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Thu morning. Warm (max 22°C on Wed morning, min 19°C on Thu afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | ||||||||||||||||||||||
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 | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSE 16 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | S 14 | SSE 14 | SSE 13 | SSE 13 | SSE 14 | SSE 14 | SSE 15 | SSE 15 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | |
1616 | 1708 | 1644 | 1312 | 1240 | 1033 | 743 | 617 | 642 | 838 | 1031 | 1367 | 1822 | 2080 | 2279 | 2203 | 1966 | 1939 | 1748 | 1728 | 1613 | 1591 | 1419 | 1464 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross | cross-on | on | on | on | cross-on | on | on | cross-on | cross-on | |
High Tide | 3:49AM0.89m | 5:29PM0.90m | 4:26AM0.88m | 6:29PM0.80m | 5:13AM0.85m | |||||||||||||||||||
Low Tide | 11:22AM0.14m | 00:27AM0.64m | 12:26PM0.21m | 1:28AM0.68m | 1:41PM0.27m | |||||||||||||||||||
 | | |  | | |  | |  |  | |  | |  | | | | | | | | | | | |
 | — | — | 6:30 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — |
 | — | — | — | — | — | 5:23 | — | — | — | — | — | — | — | 5:23 | — | — | — | — | — | — | — | 5:22 | — | — |
— | — | — | — | — | — | — | — | 1 | 1 | 1 | 2 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 21 | 21 | 21 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 21 | 20 | 20 |
20 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 21 | 20 | 20 | 19 | 19 | 18 | 19 | 19 | 19 | 19 | 20 | 20 | 21 | 21 | 19 | 19 | |
Swell 1 Height (m) Direction Period (s) | SSE 16 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | S 14 | SSE 14 | SSE 13 | SSE 13 | SSE 14 | SSE 14 | SSE 15 | SSE 15 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 15 | SSE 14 | SSE 14 | SSE 14 |
 kJ | 1616 | 1708 | 1644 | 1312 | 1240 | 1033 | 743 | 617 | 642 | 838 | 1031 | 1367 | 1822 | 2080 | 2279 | 2203 | 1966 | 1939 | 1748 | 1728 | 1613 | 1591 | 1419 | 1464 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 8 | E 7 | E 7 | E 7 | E 8 | SE 6 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 9 | E 9 |
| kJ | 168 | 142 | 4 | 4 | 4 | 5 | 11 | 1 | 1 | 1 | 1 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | E 7 | E 7 | — | — | — | — | E 8 | E 8 | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 4 | — | — | — | — | 5 | 5 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 3 | — | — | — | — | SE 5 | SSE 4 | SSE 4 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 7 | — | — | — | — | 10 | 13 | 22 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 36 | 45 | 45 | 45 | 0 | 36 | 26 | 26 | 18 | 26 | 12 | 26 | 26 | 12 | 10 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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