Praia dos Castelhanos (Ilha Bela) surfForecast / São Paulo / Brazil

information circle48hr Weather and Surf, issued 8 am Saturday 18 Apr 2026 -03
Forecast 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
24.1° C
(Which is 1.0°C colder than average 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 12PM is: 0.8m 10s primary swell from a Southeast direction and 0.4m 10s secondary swell from a South-southeast direction (forecast issued at 08:00am April 18). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (18 Apr)2.5ft (0.8m)10s
Afternoon (18 Apr)2.5ft (0.7m)10s
Evening (18 Apr)2ft (0.6m)9s

Table - waves today at Praia dos Castelhanos (Ilha Bela). (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Saturday
18
Sunday
19
Monday
20
Tue
21
6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM
Rating
(10 max)
0
2
0
1
1
1
1
1
1
1
1
0
0
0
1
1
1
1
0
0
0
1
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.6
SSE
0.8
SE
0.8
SE
0.7
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.5
SE
0.7
SE
0.8
SSE
0.7
SE
0.7
SE
0.6
SE
0.6
SE
0.6
S
0.6
SE
0.6
SE
0.6
SE
0.6
SE
0.6
SE
Period(s) (?)1010101099109999109999999910101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)721411159665657471655353498310383836565605961808082
Wind
(km/h)
10
N
5
WNW
10
SSE
0
NE
5
E
10
WNW
15
W
15
W
15
W
15
W
10
SSW
15
SSE
10
SE
5
ENE
5
NNE
5
NW
5
W
5
WSW
5
SSE
10
SE
5
SE
5
NE
5
NNE
5
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crossoffcross-
on
glassglasscross-
off
offoffoffoffcross-
off
crosscross-
on
onglassglassoffglasscross-
on
cross-
on
cross-
on
glasscrossglass
High Tide
/ height (m)
3:11PM
1.21
3:10AM
0.97
3:50PM
1.15
3:34AM
0.92
4:32PM
1.05
Low Tide
/ height (m)
9:18AM
0.10
10:01PM
0.22
9:49AM
0.11
10:44PM
0.37
10:21AM
0.14
11:31PM
0.52
Saturday
18
Sunday
19
Monday
20
Tue
21
Sunrise-6:16-------6:16-------6:16------
Sunset---5:44-------5:43-------5:43----
clear
clear
clear
thunderstorm
thunderstorm
rain showers
thunderstorm
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
Rain (mm)
---1241-----------------
Temp. °C242726242322222222242525232322212123232323222120
Feels °C (?)252827272624232322262726252524232325252425242322
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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