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Surf Forecasts:
Siriu surfForecast / Santa Catarina – Sul / Brazil
48hr Weather and Surf, issued 2 am Tuesday 09 Dec 2025 -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
22.4° C
(Which is 1.2°C colder than average for this time of year)Updates in hr min s Forecast update imminent
Tuesday 09 | Wednesday 10 | Thursday 11 | ||||||||||||||||||||||
| 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 | 6 PM | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 69 | 104 | 146 | 175 | 335 | 542 | 761 | 800 | 440 | 352 | 555 | 634 | 558 | 261 | 268 | 230 | 741 | 1374 | 1987 | 2165 | 2393 | 2233 | 2197 | 2013 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | cross- off | off | cross- on | cross- on | cross | glass |
High Tide / height (m) | 4:54AM 0.55 | 9:54AM 0.59 | 3:21PM 0.65 | 5:32AM 0.50 | 10:53AM 0.57 | 4:10PM 0.63 | 6:20AM 0.47 | 11:26AM 0.54 | 5:08PM 0.59 | |||||||||||||||
Low Tide / height (m) | 11:06PM 0.09 | 6:41AM 0.53 | 12:16PM 0.56 | 12:05AM 0.15 | 7:11AM 0.48 | 1:00PM 0.55 | 1:08AM 0.20 | 7:42AM 0.46 | 1:55PM 0.51 | |||||||||||||||
Tuesday 09 | Wednesday 10 | Thursday 11 | ||||||||||||||||||||||
| Sunrise | - | - | 5:09 | - | - | - | - | - | - | - | 5:09 | - | - | - | - | - | - | - | 5:11 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:02 | - | - | - | - | - | - | - | 7:04 | - |
 | |  |  | | |  |  |  | |  |  |  | | | | | | | | | | | | |
Rain (mm) | - | - | 3 | 18 | 15 | 22 | 5 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 22 | 21 | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 22 | 24 | 26 | 26 | 24 | 23 | 21 | 21 | 19 | 24 | 27 | 26 | 24 | 22 |
| Feels °C (?) | 21 | 23 | 22 | 22 | 22 | 22 | 24 | 22 | 23 | 22 | 22 | 24 | 25 | 24 | 24 | 22 | 19 | 19 | 18 | 23 | 26 | 26 | 25 | 23 |
- 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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