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Surf Forecasts:

Siriu surfForecast / Santa Catarina – Sul / Brazil

information circle48hr Weather and Surf, issued 8 pm Monday 29 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
25.9° C
 (Which is 1.4°C warmer than normal for this time of year)

How big are the waves at Siriu today?

The current surf forecast for Siriu at 12AM is: 0.8m 5s primary swell from a Southeast direction and 0.5m 6s secondary swell from a East-northeast direction (forecast issued at 08:00pm December 29). The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (30 Dec)3ft (0.9m)5s
Afternoon (30 Dec)3ft (0.9m)19s
Evening (30 Dec)6ft (1.9m)16s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Mon
29
Tuesday
30
Wednesday
31
Thursday
01
6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM
Rating
(10 max)
0
0
0
0
0
1
1
2
4
4
3
4
4
4
2
2
3
3
2
2
2
2
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
SE
1.1
SE
0.8
SE
0.7
ENE
0.8
ENE
0.9
ENE
0.4
SSE
0.9
SSE
1.6
SSE
1.9
SSE
2
SSE
1.9
SSE
1.8
SSE
1.6
SSE
1.5
SSE
1.4
SSE
1.2
SSE
1.2
SSE
1.1
SSE
1
S
1
S
0.9
SSE
0.9
SSE
0.8
SSE
Period(s) (?)555665161918161615141413131312121212111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2166373742519455414881862187515801303961735613484461373284270209202156
Wind
(km/h)
25
SE
10
SE
10
ESE
10
ENE
5
ENE
5
NNE
0
ESE
10
SSE
5
S
5
N
5
N
5
NNW
5
WNW
5
WSW
10
SE
10
ENE
5
NE
5
N
5
NW
5
WNW
5
WNW
5
NNE
10
E
10
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		oncross-
on		cross-
on		glassglasscross-
on		glassglasscrossglassglassglasscross-
on		onglassglassglassglassglassglassoncross-
on
High Tide
/ height (m)
12:03AM
0.63
12:27PM
0.51
12:59AM
0.71
12:37PM
0.49
1:46AM
0.78
12:38PM
0.49
Low Tide
/ height (m)
4:54PM
0.28
5:49AM
0.24
5:48PM
0.20
6:59AM
0.24
6:36PM
0.12
7:56AM
0.27
Mon
29
Tuesday
30
Wednesday
31
Thursday
01
Sunrise----5:18-------5:20-------5:20---
Sunset7:13-------7:13-------7:14-------
mod rain
heavy rain
mod rain
light rain
light rain
cloud
cloud
cloud
light rain
light rain
rain showers
rain showers
cloud
cloud
part cloud
thunderstorm
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
Rain (mm)
920941---1421---1--------
Temp. °C222020202121222323232323222526262625242424272928
Feels °C (?)212122222324262527272727252930293029282828313131
  • 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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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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