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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 Thursday 09 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 1.7°C colder than average for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 11PM is: 3.0m 12s primary swell from a South direction and 2.5m 12s secondary swell from a South-southeast direction, 0.4m 8s secondary swell from a East-northeast direction (forecast issued at 08:00pm April 09). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Apr) | - | - |
| Afternoon (09 Apr) | - | - |
| Evening (09 Apr) | 11ft (3.5m) | 13s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thu 09 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||||||||
| 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) (?) | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 3860 | 3502 | 2762 | 1728 | 1595 | 1530 | 1474 | 2113 | 1605 | 1459 | 1323 | 1277 | 1277 | 1138 | 972 | 731 | 673 | 573 | 544 | 447 | 447 | 360 | 308 | 237 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross | cross | glass | glass | off | glass | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross |
High Tide / height (m) | 11:29PM 0.59 | 5:39AM 0.46 | 11:46PM 0.65 | 10:48AM 0.47 | ||||||||||||||||||||
Low Tide / height (m) | 4:00AM 0.45 | 3:22PM 0.22 | 4:54AM 0.39 | 4:29PM 0.15 | ||||||||||||||||||||
Thu 09 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:28 | - | - |
| Sunset | 6:02 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - | - |
 |  | | |  | | | |  | | | | | | | | | | |  | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - |
| Temp. °C | 22 | 20 | 20 | 20 | 19 | 21 | 22 | 22 | 21 | 21 | 20 | 19 | 20 | 22 | 24 | 24 | 23 | 22 | 22 | 22 | 22 | 24 | 24 | 24 |
| Feels °C (?) | 19 | 18 | 19 | 19 | 17 | 20 | 20 | 20 | 20 | 22 | 21 | 20 | 21 | 23 | 23 | 23 | 22 | 21 | 21 | 21 | 22 | 24 | 23 | 23 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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