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Siriu Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Surf Forecasts:
Siriu surfForecast / Santa Catarina – Sul / Brazil
48hr Weather and Surf, issued 8 pm Sunday 12 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
22.5° C
(Which is 1.7°C colder than average for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 3AM is: 1.4m 6s primary swell from a Northeast direction and 1.0m 6s secondary swell from a East-northeast direction, 0.8m 11s secondary swell from a Southeast direction (forecast issued at 08:00pm April 12). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Apr) | 3.5ft (1.0m) | 6s |
| Afternoon (13 Apr) | 3.5ft (1.0m) | 6s |
| Evening (13 Apr) | 3.5ft (1.1m) | 6s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||||||||
| 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) (?) | 11 | 11 | 11 | 11 | 6 | 18 | 18 | 16 | 15 | 6 | 14 | 13 | 13 | 6 | 6 | 6 | 6 | 6 | 16 | 6 | 5 | 15 | 15 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 237 | 233 | 166 | 162 | 139 | 82 | 78 | 73 | 73 | 85 | 63 | 58 | 56 | 64 | 75 | 51 | 47 | 49 | 38 | 38 | 44 | 57 | 75 | 99 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross- off | cross- off | glass | on | cross- on | cross- on | cross- off | cross- off | glass | glass | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross- on | cross | cross- on | cross- on |
High Tide / height (m) | ||||||||||||||||||||||||
Low Tide / height (m) | ||||||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - |
| Sunset | 6:00 | - | - | - | - | - | - | 5:59 | - | - | - | - | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:57 |
 |  | |  | |  | | |  |  | | | |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 22 | 21 | 21 | 21 | 23 | 25 | 25 | 24 | 22 | 22 | 21 | 21 | 23 | 24 | 26 | 24 | 22 | 22 | 22 | 22 | 24 | 26 | 26 |
| Feels °C (?) | 23 | 22 | 21 | 21 | 22 | 24 | 26 | 26 | 25 | 24 | 25 | 23 | 24 | 25 | 25 | 26 | 24 | 22 | 22 | 22 | 22 | 24 | 25 | 24 |
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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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