- Forecast
- Maps
- Live
- Weather State
- Spot Information
Siriu Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Surf Forecasts:
Siriu surfForecast / Santa Catarina – Sul / Brazil
48hr Weather and Surf, issued 8 pm Wednesday 15 Apr 2026 -03Forecast 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 1.5°C colder than average for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 5AM is: 1.3m 8s primary swell from a East direction and 1.1m 8s secondary swell from a East direction, 0.6m 13s secondary swell from a South-southeast direction (forecast issued at 08:00pm April 15). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Apr) | 4ft (1.2m) | 8s |
| Afternoon (16 Apr) | 3.5ft (1.0m) | 8s |
| Evening (16 Apr) | 2ft (0.6m) | 12s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wed 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 136 | 130 | 232 | 258 | 234 | 191 | 190 | 124 | 133 | 104 | 128 | 117 | 109 | 105 | 105 | 103 | 99 | 72 | 69 | 67 | 65 | 65 | 63 | 50 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross | cross | cross | cross- on | cross- on | cross | cross | cross | cross | cross- off | cross- off | cross- on | on | glass | cross- off | cross- off | cross- off | cross- off | glass | cross- on | cross- on |
High Tide / height (m) | ||||||||||||||||||||||||
Low Tide / height (m) | ||||||||||||||||||||||||
Wed 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:33 | - | - |
| Sunset | - | - | - | - | - | - | - | 5:55 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:53 |
 | | |  | |  | |  | |  | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 22 | 22 | 22 | 21 | 24 | 26 | 27 | 23 | 22 | 22 | 22 | 22 | 24 | 27 | 26 | 24 | 22 | 22 | 21 | 21 | 23 | 25 | 24 |
| Feels °C (?) | 23 | 22 | 23 | 23 | 21 | 24 | 25 | 25 | 22 | 21 | 21 | 22 | 23 | 26 | 29 | 27 | 28 | 24 | 23 | 22 | 23 | 25 | 26 | 25 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest