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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 am Monday 23 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
26.8° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 1PM is: 0.8m 9s primary swell from a East-southeast direction and 0.8m 4s secondary swell from a Northeast direction (forecast issued at 08:00am March 23). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Mar) | 2.5ft (0.8m) | 9s |
| Afternoon (23 Mar) | 2.5ft (0.8m) | 9s |
| Evening (23 Mar) | 2.5ft (0.7m) | 9s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 23 | Tuesday 24 | Wednesday 25 | Thu 26 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 5 | 5 | 5 | 5 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 98 | 98 | 96 | 94 | 71 | 71 | 62 | 59 | 45 | 45 | 80 | 56 | 42 | 44 | 45 | 44 | 56 | 75 | 94 | 121 | 116 | 111 | 104 | 76 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | glass | glass | glass | glass | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross- off | cross- off |
High Tide / height (m) | 3:32AM 0.55 | 4:37PM 0.64 | 10:26PM 0.53 | 3:40AM 0.52 | 5:35PM 0.54 | 11:28PM 0.64 | 12:03PM 0.29 | 12:10AM 0.71 | ||||||||||||||||
Low Tide / height (m) | 8:35AM 0.20 | 8:10PM 0.50 | 1:19AM 0.48 | 8:40AM 0.19 | 7:44PM 0.50 | 8:59AM 0.22 | 2:12PM 0.27 | |||||||||||||||||
Monday 23 | Tuesday 24 | Wednesday 25 | Thu 26 | |||||||||||||||||||||
| Sunrise | - | 6:18 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:21 | - | - | - | - | - | - | - | 6:20 | - | - | - |
 |  | | | |  | | |  | |  | |  |  | | |  |  | | | | | | | |
Rain (mm) | - | - | - | - | - | 1 | 2 | 4 | 1 | - | 1 | 2 | 2 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 26 | 28 | 28 | 26 | 24 | 24 | 23 | 23 | 25 | 27 | 26 | 25 | 24 | 24 | 24 | 23 | 24 | 28 | 28 | 25 | 24 | 23 | 22 |
| Feels °C (?) | 27 | 28 | 27 | 27 | 26 | 24 | 25 | 25 | 24 | 26 | 31 | 31 | 29 | 29 | 28 | 28 | 26 | 27 | 29 | 28 | 27 | 27 | 26 | 24 |
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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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