Siriu surfForecast / Santa Catarina – Sul / Brazil

information circle48hr Weather and Surf, issued 2 pm Tuesday 09 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
22.4° C
(Which is 1.2°C colder than average for this time of year)


How big are the waves at Siriu today?

The current surf forecast for Siriu at 8PM is: 1.9m 7s primary swell from a Northeast direction and 1.6m 7s secondary swell from a East-northeast direction, 0.2m 9s secondary swell from a South-southeast direction (forecast issued at 02:00pm December 09). The wind direction is predicted to be cross-shore.

Time (-03) & DateWave HeightWave Period
Morning (09 Dec)--
Afternoon (09 Dec)6.5ft (2.0m)7s
Evening (09 Dec)6ft (1.9m)7s

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

Updates in  hr  min  s Forecast update imminent
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM
Rating
(10 max)
0
0
2
2
2
2
2
2
2
1
1
1
3
4
!
!
!
2
4
4
4
4
4
2
Swell
Height Map
Wave Height (m) & direction (?)
1.9
ENE
2
ENE
1.9
NE
1.9
NE
1.6
ENE
1.7
ENE
1.6
ENE
2.1
NE
1.6
NNE
1.3
ENE
1.3
ENE
1.2
ENE
1.6
S
2.3
S
3
S
3
SSE
3
SSE
2.5
SSE
2.5
S
2.5
SSE
2.4
SSE
2.3
SSE
2.1
SSE
1.9
SSE
Period(s) (?)7777888888101091112121212111111111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3113533523942833763535962982412842644171288228423542315194416561478136312791027828
Wind
(km/h)
25
NE
20
NNE
20
NNE
20
N
15
NNW
10
NW
15
NNW
15
NNW
25
NNW
30
WNW
20
SW
20
WSW
20
WSW
10
WNW
10
WNW
5
WSW
10
SE
15
SSE
5
SSE
5
W
10
NNW
10
NNW
10
NNW
15
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
crosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
offoffcross-
off
cross-
off
cross-
on
cross-
on
glassglasscross-
off
cross-
off
cross-
off
cross
High Tide
/ height (m)
9:54AM
0.59
3:21PM
0.65
5:32AM
0.50
10:53AM
0.57
4:10PM
0.63
6:20AM
0.47
11:26AM
0.54
5:08PM
0.59
Low Tide
/ height (m)
12:16PM
0.56
12:05AM
0.15
7:11AM
0.48
1:00PM
0.55
1:08AM
0.20
7:42AM
0.46
1:55PM
0.51
2:12AM
0.24
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Sunrise------5:09-------5:11-------5:11-
Sunset--7:01-------7:02-------7:04-----
heavy rain
mod rain
thunderstorm
part cloud
cloud
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
Rain (mm)
1274---------------------
Temp. °C222323232222222527272323211919242625242221202024
Feels °C (?)222424242323222525242121191818232525262421202023
  • 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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