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Surf Forecasts:

Siriu surfForecast / Santa Catarina – Sul / Brazil

information circle12 Day Weather and Surf, issued 2 am Monday 02 Feb 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
26.2° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Siriu this week:

The surf forecast for Siriu over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Feb 02) at 9AM. The primary swell is predicted to be 1.1m and 12s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Siriu in the next 12 days are 1.9m 8s and forecast to arrive on Saturday (Feb 07) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Feb 07) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Mon 2nd Feb)3.5ft (1.1m) 12s
Best Surf 9PM (Sat 7th Feb)6ft (1.9m) 8s
Most Powerful 9PM (Sat 7th Feb)6ft (1.9m) 8s

Table - best surf conditions forecast for Siriu over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 3mm), mostly falling on Tue night. Warm (max 29°C on Tue morning, min 22°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Some drizzle, heaviest during Sat morning. Warm (max 28°C on Fri morning, min 19°C on Sat night). Wind will be generally light.

Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Saturday
07
Sunday
08
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
0
1
1
0
0
0
0
0
1
0
0
0
0
1
1
1
2
2
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SSE
1.2
SSE
1
SE
0.9
SSE
0.8
SSE
0.6
SSE
0.6
SSE
0.8
ENE
0.8
ENE
0.9
ENE
0.9
ENE
0.9
ENE
0.9
ENE
1.2
NE
1
ENE
1.6
S
1.6
S
1.5
S
1.3
SSE
1.2
S
1
S
Period(s) (?)1289111187857788577899109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)35320714821114939368633778111911062104233287380308273175
Wind
(km/h)
5
SSE
10
SE
5
WNW
15
NNE
30
NE
15
NNE
10
NNE
15
ENE
10
NE
5
E
15
ESE
10
E
10
NNE
20
ENE
5
WNW
25
SSW
25
S
10
SSW
5
S
15
NE
15
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
on		cross-
off		crosscross-
on		crosscrosscross-
on		cross-
on		glassononcrossonglasscross-
off		cross-
off		cross-
off		glasscross-
on		cross
High Tide
/ height (m)
1:39PM
0.72
3:13AM
0.70
2:11PM
0.77
3:24AM
0.66
2:44PM
0.79
3:40AM
0.64
3:19PM
0.78
3:59AM
0.62
3:55PM
0.73
4:20AM
0.60
4:33PM
0.67
4:42AM
0.57
5:16PM
0.58
Low Tide
/ height (m)
9:13AM
0.37
9:10PM
-0.06
9:31AM
0.37
9:42PM
-0.01
9:44AM
0.36
10:10PM
0.06
9:46AM
0.34
10:32PM
0.15
9:33AM
0.31
10:46PM
0.24
9:37AM
0.28
10:27PM
0.32
9:57AM
0.28
9:53PM
0.39
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Saturday
07
Sunday
08
Sunrise5:46--5:47--5:48--5:48--5:50--5:50--5:50--
Sunset-7:08--7:07--7:07--7:07--7:06--7:05--7:05-
clear
clear
clear
clear
part cloud
thunderstorm
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
light rain
cloud
part cloud
part cloud
clear
clear
Rain (mm)
-----3---------1-----
Temp. °C262623292824252624262624282825222422232422
Feels °C (?)262727282725282826272726282928202120232221
  • 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:
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Information about the Siriu Surf forecast

The above surf forecast table for Siriu provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Siriu can be found by selecting the local surf guide option on the grey menu. Our Siriu surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Siriu) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Siriu may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Siriu is 27 km (17 miles) from Imbituba. If you plan a holiday in Santa Catarina - Sul, look for hotels and other accommodation in Imbituba. Imbituba has rooms for a wide range of budgets as well as car hire and transport links.

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