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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 Wednesday 25 Mar 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
27.1° C
(Which is 2.0°C warmer than normal for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 11PM is: 0.9m 10s primary swell from a South direction and 0.5m 7s secondary swell from a East-northeast direction (forecast issued at 08:00pm March 25). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Mar) | - | - |
| Afternoon (25 Mar) | - | - |
| Evening (25 Mar) | 3ft (0.9m) | 10s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wed 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||
| 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) (?) | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 7 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 153 | 153 | 146 | 106 | 80 | 80 | 80 | 61 | 53 | 81 | 54 | 54 | 61 | 61 | 54 | 68 | 73 | 93 | 104 | 122 | 122 | 150 | 100 | 140 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- off | cross- off | cross- off | cross- on | on | on | cross- on | cross | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on |
High Tide / height (m) | 12:10AM 0.71 | 12:09PM 0.34 | 12:44AM 0.75 | 12:13PM 0.41 | 1:12AM 0.76 | 12:03PM 0.49 | ||||||||||||||||||
Low Tide / height (m) | 9:19AM 0.28 | 3:53PM 0.21 | 9:23AM 0.36 | 5:04PM 0.13 | 6:44AM 0.39 | |||||||||||||||||||
Wed 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:22 | - | - |
| Sunset | 6:20 | - | - | - | - | - | - | - | 6:19 | - | - | - | - | - | - | - | 6:17 | - | - | - | - | - | - | - |
 |  | | | |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 24 | 23 | 23 | 22 | 25 | 28 | 27 | 26 | 24 | 24 | 23 | 23 | 26 | 29 | 29 | 26 | 24 | 24 | 23 | 23 | 25 | 30 | 29 |
| Feels °C (?) | 27 | 27 | 26 | 26 | 24 | 27 | 29 | 28 | 29 | 27 | 27 | 26 | 26 | 28 | 29 | 29 | 27 | 25 | 25 | 24 | 25 | 26 | 29 | 28 |
- Map Icons:
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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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