Siriu surfForecast / Santa Catarina – Sul / Brazil

information circle48hr Weather and Surf, issued 2 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 5PM is: 1.6m 10s primary swell from a East-northeast direction and 0.4m 11s secondary swell from a South-southeast direction (forecast issued at 02:00pm December 10). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (10 Dec)--
Afternoon (10 Dec)5ft (1.6m)9s
Evening (10 Dec)5ft (1.5m)10s

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

Updates in  hr  min  s Forecast update imminent
Wednesday
10
Thursday
11
Friday
12
Saturday
13
12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM
Rating
(10 max)
2
3
3
3
4
4
4
4
4
2
!
4
4
4
4
2
1
1
2
3
1
2
1
1
Swell
Height Map
Wave Height (m) & direction (?)
1.6
ENE
1.6
ENE
1.6
ENE
1.5
ENE
1.8
S
2.3
S
2.5
S
2.5
S
2.5
S
2.5
S
3.5
S
2.5
S
2.5
SSE
2.4
SSE
2.1
SSE
2
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
Period(s) (?)9910101012121212121212111111111110101010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)398415435416687148020202165201219793637188215311338990883705607520451388331275214
Wind
(km/h)
25
NW
20
W
15
SW
15
W
15
W
15
W
15
WNW
15
WSW
15
SSW
25
S
15
S
5
WSW
5
WNW
10
NNW
10
NNW
10
NNE
15
ENE
20
NE
15
NNE
10
N
15
N
15
NNW
15
N
15
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offcross-
off
offoffoffoffcross-
off
cross-
off
crosscrossglassglasscross-
off
cross-
off
cross-
on
oncross-
on
crosscross-
off
crosscross-
off
crosscross
High Tide
/ height (m)
10:53AM
0.57
4:10PM
0.63
6:20AM
0.47
11:26AM
0.54
5:08PM
0.59
11:39AM
0.52
6:27PM
0.54
Low Tide
/ height (m)
1:00PM
0.55
1:08AM
0.20
7:42AM
0.46
1:55PM
0.51
2:12AM
0.24
2:54PM
0.45
3:17AM
0.27
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunrise------5:11-------5:11-------5:11-
Sunset--7:02-------7:04-------7:04-----
part cloud
part cloud
light rain
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
Rain (mm)
--1---------------------
Temp. °C272721212120202527272522212020242725252323232224
Feels °C (?)252621212019182325242423222020242725262423222124
  • 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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