Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Siriu surfForecast / Santa Catarina – Sul / Brazil

information circle48hr Weather and Surf, issued 2 pm Thursday 15 Jan 2026 -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
25.5° C
 (Which is normal for this time of year)

How big are the waves at Siriu today?

The current surf forecast for Siriu at 5PM is: 1.4m 8s primary swell from a East-northeast direction and 0.2m 13s secondary swell from a South-southeast direction (forecast issued at 02:00pm January 15). The wind direction is predicted to be cross-shore.

Time (-03) & DateWave HeightWave Period
Morning (15 Jan)--
Afternoon (15 Jan)5ft (1.5m)8s
Evening (15 Jan)4.5ft (1.4m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
15
Friday
16
Saturday
17
Sunday
18
12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM
Rating
(10 max)
0
0
3
1
1
2
2
1
0
0
2
2
2
2
2
1
0
1
1
0
1
1
2
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.4
ENE
1.5
ENE
1.7
ENE
1.4
ENE
1.5
ENE
1.4
ENE
1.4
ENE
1.4
ENE
1.4
ENE
1.7
ENE
1.4
ENE
1.4
ENE
1.3
ENE
1.3
ENE
1.3
ENE
1.2
ENE
1.2
ENE
1.2
ENE
1.2
ENE
1.2
ENE
1.2
ENE
1.5
ENE
1.7
ENE
1.7
ENE
Period(s) (?)888888888888888888888888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)220270345243284238238232243363257250206206206168159159159159159278322322
Wind
(km/h)
30
NE
30
NE
10
N
10
N
15
N
15
N
10
N
10
NE
20
NE
20
NNE
5
NW
5
NNE
5
W
5
NW
5
NNW
5
NNE
10
NE
5
E
10
NNW
10
N
10
NNW
15
N
15
N
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
off		crosscrosscross-
off		cross-
off		cross-
on		cross-
on		cross-
on		cross-
off		glassoffcross-
off		glassglasscross-
on		glasscross-
off		crosscross-
off		crosscrosscross
High Tide
/ height (m)
12:04PM
0.53
1:34AM
0.72
12:36PM
0.57
2:00AM
0.75
1:05PM
0.63
2:25AM
0.76
Low Tide
/ height (m)
6:38PM
0.11
7:39AM
0.31
7:18PM
0.05
8:10AM
0.30
7:56PM
0.01
8:39AM
0.29
Thursday
15
Friday
16
Saturday
17
Sunday
18
Sunrise------5:31-------5:33-------5:33-
Sunset--7:15-------7:15-------7:15-----
clear
clear
thunderstorm
thunderstorm
part cloud
clear
clear
clear
clear
thunderstorm
rain showers
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
thunderstorm
part cloud
part cloud
part cloud
clear
part cloud
Rain (mm)
--54-----32-------1-----
Temp. °C302925242423232729262424242424252626252323232426
Feels °C (?)292928272725252929282727272727292930292525242527
  • 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

Latest Updates

The World’s Most Inconsistent Waves
Ben Mondy

The World’s Most Inconsistent Waves

Huntington, Dribbleton, Virginia, Holland and the Superbank! We recently had a look at the world’s most consistent waves. This was based on the combination of swells and wind directed at 7,000 surf spots, as compiled from our data since 2006. Those stats, represented in easy-to-read graphics, are located under each wave’s spot guides, with historical swell and wind breakdowns available by month, season, and year. There is also an offshore filter, which shows how often the swells come with clean

Read more

Read more

Discover more articles and updates in the Greenroom.

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

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest