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

information circle48hr Weather and Surf, issued 8 am Sunday 10 May 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
24.5° C
(Which is slightly warmer than usual)

How big are the waves at Praia dos Castelhanos (Ilha Bela) today?

The current surf forecast for Praia dos Castelhanos (Ilha Bela) at 4PM is: 0.5m 12s primary swell from a South direction and 0.6m 8s secondary swell from a East-southeast direction (forecast issued at 08:00am May 10). An open ocean swell of 1.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (10 May)2ft (0.6m)12s
Afternoon (10 May)3.5ft (1.1m)8s
Evening (10 May)4ft (1.2m)8s

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 Forecast

Moderate rain (total 11mm), heaviest on Sun night. Warm (max 20°C on Sun morning, min 18°C on Sun night). Wind will be generally light.

Sunday
10
Monday
11
Tuesday
12
Wed
13
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
12 AM
3 AM
Rating
(10 max)
1
0
1
0
0
1
3
3
3
4
4
4
4
4
4
4
4
4
2
2
2
1
2
3
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.7
ESE
9
0.6
S
12
1.1
S
8
1.1
S
8
0.5
S
12
1.2
S
8
0.7
SSE
18
1
SSE
17
1.8
S
16
1.9
SSE
16
1.9
SSE
16
2
S
15
2.1
SSE
15
2.2
SSE
16
2.2
SSE
16
2.2
SSE
15
2.2
SSE
15
2.1
SSE
14
2.1
SSE
14
2.1
SSE
14
2.1
SSE
14
2
SSE
14
2
SSE
14
1.9
SSE
14
Wave Graph
Metric surfscale
Energy kJ
77
101
149
145
71
203
329
603
1688
1845
1776
1811
1850
2195
2195
2029
1948
1752
1728
1704
1680
1526
1505
1284
Wind (km/h)
25
WSW
20
SW
20
SW
25
SW
20
SW
15
SW
15
WSW
15
WSW
15
SW
15
WSW
10
WSW
10
SW
10
SW
10
SW
10
SW
5
SSW
5
S
5
E
10
E
15
E
15
ENE
15
NE
15
NE
10
NE
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
glassy
on
on
cross-on
cross-on
cross-on
cross-on
High Tide
8:33AM0.77m
11:28PM0.91m
10:34AM0.84m
00:04AM0.98m
11:37AM0.94m
00:36AM1.01m
Low Tide
3:55AM0.52m
4:08PM0.26m
4:55AM0.45m
5:09PM0.19m
5:46AM0.36m
6:03PM0.13m
rain showers
rain showers
part cloud
light rain
light rain
light rain
light rain
light rain
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:26
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:29
5:28
5:28
5:27
1
1
1
1
1
3
3
1
Temp °C
20
20
20
19
19
18
18
18
19
19
20
20
19
19
18
18
18
19
20
20
19
19
19
19
19
19
19
16
18
17
17
17
17
17
19
19
18
18
18
18
18
19
19
18
17
17
18
19
Swell 1
Height (m)
Direction
Period (s)
0.7
ESE
9
0.7
ESE
8
0.7
ESE
8
0.6
ESE
8
0.6
E
8
0.5
E
8
1.1
S
7
1
SSE
17
1.8
S
16
1.9
SSE
16
1.9
SSE
16
2
S
15
2.1
SSE
15
2.2
SSE
16
2.2
SSE
16
2.2
SSE
15
2.2
SSE
15
2.1
SSE
14
2.1
SSE
14
2.1
SSE
14
2.1
SSE
14
2
SSE
14
2
SSE
14
1.9
SSE
14
Energy kJ
77
75
73
54
50
36
127
603
1688
1845
1776
1811
1850
2195
2195
2029
1948
1752
1728
1704
1680
1526
1505
1284
Swell 2
Height (m)
Direction
Period (s)
0.5
S
12
0.6
S
12
0.5
S
12
0.5
S
12
0.5
S
12
0.5
SSE
19
0.7
SSE
18
0.7
S
12
0.4
ESE
8
0.4
ESE
8
0.4
ESE
8
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
ESE
9
0.3
E
9
0.3
ESE
9
Energy kJ
73
101
69
69
71
203
329
132
23
24
24
15
15
15
15
15
15
15
15
15
15
16
14
16
Swell 3
Height (m)
Direction
Period (s)
0.4
SSW
9
0.1
S
21
0.2
SSE
20
0.4
SSE
12
0.5
S
12
0.4
ESE
8
0.1
SE
13
0.1
SE
13
0.1
SE
13
0.1
SE
16
0.2
ESE
16
0.2
ESE
15
0.2
ESE
16
0.2
ESE
15
Energy kJ
28
9
38
47
76
24
7
7
7
10
25
23
24
23
Wind waves
Height (m)
Direction
Period (s)
0.9
SW
4
1
SSW
6
1.1
S
8
1.1
S
8
1.5
SSW
7
1.2
S
8
1.6
SSW
7
1
S
7
1.7
SSW
11
0.6
ENE
9
Energy kJ
28
68
149
145
187
160
268
97
672
64
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
2
1
3
3
2
4
4
4
4
4
4
4
4
4
4
1
4
4
4
4
Distance (km)
0
55
52
234
45
36
0
0
37
0
0
0
0
0
0
0
0
0
45
37
18
18
18
10
Best forecast wave conditions in São Paulo
Rating
(10 max)
1
2
1
2
2
3
3
3
4
4
4
4
5
5
5
5
5
4
4
4
4
4
4
4
Best forecast wave conditions in Brazil
Rating
(10 max)
2
4
3
3
4
4
4
4
4
4
4
4
5
5
5
5
5
4
4
4
4
5
5
4
Header Global
Rating
(10 max)
5
5
9
8
6
9
8
5
5
4
5
9
5
5
9
9
9
9
9
9
9
9
9
8
  • 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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