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Surf Forecasts:

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

information circle12 Day Weather and Surf, issued 8 pm Friday 30 Jan 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
27.4° C
 (Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Praia dos Castelhanos (Ilha Bela) this week:

The surf forecast for Praia dos Castelhanos (Ilha Bela) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jan 31) at 12AM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.3m and 12s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Praia dos Castelhanos (Ilha Bela) in the next 12 days are 0.8m 13s and forecast to arrive on Monday (Feb 02) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 10s period and expected on Saturday (Jan 31) at 12PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 31st Jan)2ft (0.6m) 7s
Best Surf 9PM (Sun 1st Feb)2.5ft (0.8m) 14s
Most Powerful 9AM (Mon 2nd Feb)2.5ft (0.8m) 13s

Table - best surf conditions forecast for Praia dos Castelhanos (Ilha Bela) over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 9mm), mostly falling on Sun afternoon. Warm (max 30°C on Sun morning, min 24°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 21mm), heaviest during Thu afternoon. Warm (max 27°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light.

Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Fri
06
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
1
1
0
1
0
1
2
2
0
1
1
0
1
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
E
0.4
SSE
0.4
SSE
0.4
SE
0.5
SE
0.6
SSE
0.8
SSE
0.8
SSE
0.8
SSE
0.7
SE
0.4
SE
0.4
SSE
0.4
SSE
0.4
SE
0.4
SE
0.3
E
0.2
SSE
0.4
SE
0.3
SSE
0.5
SE
0.6
SE
Period(s) (?)711101615141313121212111111119105556
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3538336411213820121519014735504730301310751426
Wind
(km/h)
10
NW
15
WSW
5
SW
15
NNE
5
WSW
10
E
10
NNE
10
W
0
SE
10
NE
5
NNW
5
WSW
15
NE
5
NW
10
E
10
NE
10
SSE
10
SSE
10
SSE
10
SSE
10
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offcross-
off		cross-
on		offoncrossoffglasscross-
on		cross-
off		glasscross-
on		glassoncross-
on		crosscross-
on		cross-
on		crosscross
High Tide
/ height (m)
2:38AM
1.13
1:45PM
0.92
3:03AM
1.14
2:12PM
1.02
3:24AM
1.12
2:41PM
1.10
3:44AM
1.09
3:11PM
1.16
4:04AM
1.05
3:42PM
1.17
4:24AM
1.01
4:13PM
1.14
4:45AM
0.97
4:45PM
1.08
Low Tide
/ height (m)
8:34AM
0.37
8:26PM
-0.04
9:03AM
0.37
9:03PM
-0.08
9:28AM
0.36
9:37PM
-0.07
9:51AM
0.35
10:08PM
-0.02
10:12AM
0.34
10:36PM
0.06
10:32AM
0.33
11:02PM
0.16
10:54AM
0.32
Saturday
31
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Fri
06
Sunrise-5:37--5:39--5:39--5:39--5:41--5:41--5:41-
Sunset--6:50--6:49--6:49--6:47--6:47--6:46--6:46
thunderstorm
clear
thunderstorm
part cloud
clear
rain showers
part cloud
cloud
part cloud
thunderstorm
cloud
thunderstorm
light rain
rain showers
thunderstorm
thunderstorm
thunderstorm
mod rain
rain showers
light rain
light rain
Rain (mm)
4-1--4---1-1322246822
Temp. °C252727253029252727262626252627252626252525
Feels °C (?)282930273332293032292930273030272929272828
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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View detailed surf forecast for Praia dos Castelhanos (Ilha Bela) at:
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Information about the Praia dos Castelhanos (Ilha Bela) Surf forecast

The above surf forecast table for Praia dos Castelhanos (Ilha Bela) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Praia dos Castelhanos (Ilha Bela) can be found by selecting the local surf guide option on the grey menu. Our Praia dos Castelhanos (Ilha Bela) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Praia dos Castelhanos (Ilha Bela)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Praia dos Castelhanos (Ilha Bela) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Praia dos Castelhanos (Ilha Bela) is 11 km (7 miles) from the city of Ilhabela. If you plan a holiday in São Paulo, look for hotels and other accommodation in Ilhabela. Ilhabela has rooms for a wide range of budgets as well as car hire and transport links.

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