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Surf Forecasts:

Siriu surfForecast / Santa Catarina – Sul / Brazil

information circle48hr Weather and Surf, issued 2 pm Monday 12 Jan 2026 -03
Forecast update in hr  min  s Forecast update imminent
Siriu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Siriu sea temperature is
25.1° C
 (Which is normal for this time of year)

How big are the waves at Siriu today?

The current surf forecast for Siriu at 8PM is: 1.0m 8s primary swell from a East-northeast direction and 0.4m 9s secondary swell from a South direction, 0.5m 4s secondary swell from a North direction (forecast issued at 02:00pm January 12). The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (12 Jan)--
Afternoon (12 Jan)3.5ft (1.0m)8s
Evening (12 Jan)3.5ft (1.0m)8s

Table - waves today at Siriu. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM
Rating
(10 max)
1
0
0
1
1
1
1
1
0
0
0
0
1
1
1
0
0
0
1
0
0
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
ENE
1
ENE
1
ENE
1
ENE
1
ENE
1.1
ENE
1.1
ENE
1.1
ENE
1.1
ENE
1.3
ENE
1.3
ENE
1.4
ENE
1.2
ENE
1.2
ENE
1.1
ENE
1.1
ENE
1.1
ENE
1.2
ENE
1.2
ENE
1.2
ENE
1.1
ENE
1.4
ENE
1.2
ENE
1.2
ENE
Period(s) (?)888888888888888888888888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)146130120110113146146142135204186232173178155155151159155155151242176172
Wind
(km/h)
5
E
15
NE
15
NNE
10
NNW
5
W
0
SW
5
WSW
5
NNE
20
ENE
25
NE
20
NNE
15
NNE
10
NNW
5
WNW
5
NNW
15
NNE
20
NE
25
NE
5
NNE
15
N
15
N
15
N
15
N
15
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on		crosscross-
off		glassglassglassglasscross-
on		cross-
on		crosscross-
on		cross-
off		offglasscrosscross-
on		cross-
on		glasscrosscrosscrosscrosscross-
on
High Tide
/ height (m)
12:11AM
0.54
9:36AM
0.45
12:41AM
0.61
11:24AM
0.48
1:08AM
0.67
Low Tide
/ height (m)
3:52PM
0.30
5:11AM
0.40
5:00PM
0.24
6:21AM
0.37
5:54PM
0.17
7:05AM
0.34
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Sunrise------5:30-------5:31-------5:31-
Sunset--7:15-------7:15-------7:15-----
thunderstorm
thunderstorm
thunderstorm
cloud
cloud
clear
clear
clear
clear
clear
part cloud
thunderstorm
cloud
part cloud
part cloud
clear
clear
clear
mod rain
thunderstorm
part cloud
clear
clear
clear
Rain (mm)
4511--------1------66----
Temp. °C242324232322222528292624232323262928252423232327
Feels °C (?)272527262726262929302725252626272928292625252428
  • 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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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Siriu surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Siriu at:
surf-forecast.com

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