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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 Saturday 11 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
22.7° 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: 1.4m 11s primary swell from a Southeast direction and 0.2m 8s secondary swell from a East direction, 0.9m 5s secondary swell from a East-northeast direction (forecast issued at 08:00pm April 11). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Apr) | 3.5ft (1.1m) | 11s |
| Afternoon (12 Apr) | 3.5ft (1.1m) | 11s |
| Evening (12 Apr) | 3.5ft (1.0m) | 11s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||||||||
| 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 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 19 | 18 | 18 | 7 | 15 | 14 | 14 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 673 | 503 | 503 | 447 | 389 | 308 | 314 | 320 | 237 | 233 | 166 | 137 | 93 | 90 | 90 | 93 | 90 | 72 | 96 | 66 | 66 | 77 | 83 | 52 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | cross | cross | cross- off | glass | cross | cross- off | cross | cross- off | cross- off | cross- off | glass | cross- on | cross- on | cross- on | cross- off | off | glass | glass | cross | cross | cross- on |
High Tide / height (m) | ||||||||||||||||||||||||
Low Tide / height (m) | 4:29PM 0.15 | |||||||||||||||||||||||
Sat 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:31 | - | - |
| Sunset | 6:00 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | 5:59 | - | - | - | - | - | - | - | 5:58 |
 |  | | | |  | |  |  |  | |  | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - |
| Temp. °C | 22 | 21 | 22 | 22 | 22 | 23 | 24 | 22 | 21 | 21 | 21 | 21 | 20 | 22 | 25 | 25 | 24 | 22 | 21 | 21 | 21 | 22 | 24 | 26 |
| Feels °C (?) | 21 | 20 | 21 | 21 | 21 | 24 | 25 | 22 | 21 | 20 | 21 | 21 | 21 | 24 | 26 | 26 | 26 | 24 | 23 | 24 | 24 | 24 | 25 | 26 |
- 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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