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Praia dos Castelhanos (Ilha Bela) surfForecast / São Paulo / Brazil
48hr Weather and Surf, issued 8 am Tuesday 21 Apr 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 slightly cooler than normal)How big are the waves at Praia dos Castelhanos (Ilha Bela) today?
The current surf forecast for Praia dos Castelhanos (Ilha Bela) at 1PM is: 0.7m 10s primary swell from a Southeast direction and 0.5m 8s secondary swell from a South direction (forecast issued at 08:00am April 21). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Apr) | 2ft (0.6m) | 10s |
| Afternoon (21 Apr) | 2.5ft (0.7m) | 10s |
| Evening (21 Apr) | 2.5ft (0.7m) | 9s |
Table - waves today at Praia dos Castelhanos (Ilha Bela). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 21 | Wednesday 22 | Thursday 23 | Fri 24 | |||||||||||||||||||||
| 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 10 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 45 | 74 | 96 | 98 | 96 | 90 | 92 | 78 | 75 | 56 | 55 | 54 | 53 | 52 | 37 | 28 | 27 | 27 | 33 | 54 | 41 | 19 | 37 | 36 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | glass | cross | cross- on | cross- on | cross- on | glass | glass | glass | glass | cross- on | cross- on | on | cross- on | cross | cross | cross | cross- on | on | on | cross- on | cross- on | cross- on | cross |
High Tide / height (m) | 3:59AM 0.87 | 5:18PM 0.92 | 4:27AM 0.83 | 6:20PM 0.79 | 11:10PM 0.78 | 5:00AM 0.78 | 11:59PM 0.85 | |||||||||||||||||
Low Tide / height (m) | 11:00AM 0.20 | 12:36AM 0.65 | 12:10PM 0.28 | 8:49PM 0.75 | 2:15AM 0.72 | 2:04PM 0.33 | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Fri 24 | |||||||||||||||||||||
| Sunrise | - | 6:16 | - | - | - | - | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - |
| Sunset | - | - | - | 5:42 | - | - | - | - | - | - | - | 5:40 | - | - | - | - | - | - | - | 5:39 | - | - | - | - |
 |  | |  |  | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 23 | 24 | 24 | 23 | 22 | 21 | 21 | 21 | 22 | 23 | 23 | 23 | 22 | 21 | 21 | 20 | 22 | 23 | 23 | 22 | 22 | 22 | 21 |
| Feels °C (?) | 21 | 24 | 25 | 24 | 25 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 25 | 24 | 23 | 22 | 21 | 23 | 24 | 23 | 23 | 23 | 24 | 23 |
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