Siriu surfForecast / Santa Catarina – Sul / Brazil

information circle48hr Weather and Surf, issued 8 pm Wednesday 10 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
22.7° C
(Which is 1.0°C colder than average for this time of year)


How big are the waves at Siriu today?

The current surf forecast for Siriu at 12AM is: 1.5m 10s primary swell from a South direction and 1.4m 10s secondary swell from a East-northeast direction (forecast issued at 08:00pm December 10). The wind direction is predicted to be offshore and the swell rating is 3.

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
Wed
10
Thursday
11
Friday
12
Saturday
13
6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM
Rating
(10 max)
3
3
3
4
4
4
!
!
4
4
4
4
4
2
1
1
2
2
2
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.6
ENE
1.5
E
1.5
S
2.2
S
2.5
S
2.5
S
3
SSE
3
SSE
2.5
SSE
2.5
SSE
2.4
SSE
2.2
SSE
2.1
SSE
1.9
SSE
1.8
SSE
1.7
SSE
1.6
SSE
1.5
SSE
1.4
SSE
1.3
SSE
1.2
SSE
1.1
SSE
1
SSE
1
SSE
Period(s) (?)101010111212121212121111111111111110101010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)435459417120019021954219621962010180514401152990798743631551460388307258214175175
Wind
(km/h)
15
SW
10
W
15
WSW
15
W
10
WNW
15
WSW
10
S
20
SSE
5
S
5
WNW
10
NNW
10
NNW
10
NNW
10
NNE
15
ENE
15
NE
15
N
15
N
15
N
20
NNE
20
NNE
25
NNE
15
NNE
20
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffoffoffcross-
off
crosscross-
on
glasscross-
off
cross-
off
cross-
off
cross-
off
cross-
on
oncross-
on
crosscrosscross-
off
crosscrosscrosscross-
on
cross-
on
High Tide
/ height (m)
4:10PM
0.63
6:20AM
0.47
11:26AM
0.54
5:08PM
0.59
11:39AM
0.52
6:27PM
0.54
11:27AM
0.50
Low Tide
/ height (m)
1:08AM
0.20
7:42AM
0.46
1:55PM
0.51
2:12AM
0.24
2:54PM
0.45
3:17AM
0.27
Wed
10
Thursday
11
Friday
12
Saturday
13
Sunrise----5:11-------5:11-------5:11---
Sunset7:02-------7:04-------7:04-------
light rain
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
light rain
part cloud
cloud
Rain (mm)
2--------------------1--
Temp. °C212221202024272624222120202527262422222221222223
Feels °C (?)222320191922262425232220192527262523232120212323
  • 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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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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