Siriu surfForecast / Santa Catarina – Sul / Brazil

information circle48hr Weather and Surf, issued 8 am Thursday 11 Dec 2025 -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
22.8° C
(Which is slightly cooler than normal)


How big are the waves at Siriu today?

The current surf forecast for Siriu at 2PM is: 3.0m 12s primary swell from a South-southeast direction and 0.9m 10s secondary swell from a East-northeast direction (forecast issued at 08:00am December 11). The wind direction is predicted to be cross-shore and the swell rating is 11.

Time (-03) & DateWave HeightWave Period
Morning (11 Dec)8ft (2.5m)12s
Afternoon (11 Dec)10ft (3.0m)12s
Evening (11 Dec)8ft (2.5m)12s

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

Updates in  hr  min  s Forecast update imminent
Thursday
11
Friday
12
Saturday
13
Sun
14
6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM
Rating
(10 max)
4
4
!
!
4
4
4
4
4
2
1
1
2
2
1
1
1
0
0
0
0
2
1
2
Swell
Height Map
Wave Height (m) & direction (?)
2.5
S
2.5
S
3
SSE
3
SSE
2.5
SSE
2.5
SSE
2.5
SSE
2.3
SSE
2.1
SSE
1.9
SSE
1.7
SSE
1.6
SSE
1.5
SSE
1.4
SSE
1.3
SSE
1.2
SSE
1.2
SSE
1.1
SSE
1
SSE
1
SSE
1.3
ENE
1.6
ENE
1.5
ENE
1.5
ENE
Period(s) (?)12121212121212111111101010101010101010107777
Wave
Graph
(?)Metric surfscale
Energy kJ (?)18702069239321961977180515871256990783607520451388331281281235200200153229192218
Wind
(km/h)
15
W
10
WSW
15
S
20
S
10
SSW
5
W
5
NW
10
NNW
10
NNW
10
NNE
15
ENE
15
NE
15
NE
10
NNW
15
N
15
N
15
N
15
NNE
15
NE
20
NE
15
NE
10
NE
10
N
5
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
crosscrossglassglasscross-
off
cross-
off
cross-
off
cross-
on
oncross-
on
cross-
on
cross-
off
crosscrosscrosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
off
High Tide
/ height (m)
6:20AM
0.47
11:26AM
0.54
5:08PM
0.59
11:39AM
0.52
6:27PM
0.54
11:27AM
0.50
8:49PM
0.52
Low Tide
/ height (m)
7:42AM
0.46
1:55PM
0.51
2:12AM
0.24
2:54PM
0.45
3:17AM
0.27
3:52PM
0.38
Thursday
11
Friday
12
Saturday
13
Sun
14
Sunrise5:11-------5:11-------5:11-------
Sunset----7:04-------7:04-------7:05---
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
clear
clear
clear
cloud
Rain (mm)
------------------------
Temp. °C212427272422212020242726242323222224242424222222
Feels °C (?)192225252523222019232626262523222224242426242525
  • 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.


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