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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 01 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
20.4° C
(Which is 2.7°C colder than average for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 2PM is: 0.8m 9s primary swell from a South direction and 0.4m 8s secondary swell from a East-southeast direction, 0.6m 4s secondary swell from a East-northeast direction (forecast issued at 08:00am December 01). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Dec) | 2.5ft (0.8m) | 8s |
| Afternoon (01 Dec) | 3ft (0.9m) | 10s |
| Evening (01 Dec) | 2.5ft (0.8m) | 9s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 01 | Tuesday 02 | Wednesday 03 | Thu 04 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 10 | 9 | 9 | 9 | 6 | 6 | 6 | 6 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 7 | 7 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 86 | 86 | 90 | 148 | 101 | 99 | 74 | 87 | 88 | 80 | 79 | 77 | 167 | 91 | 86 | 191 | 249 | 240 | 125 | 102 | 118 | 328 | 330 | 285 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross- off | cross- off | cross- off |
High Tide / height (m) | 12:25PM 0.65 | 12:18AM 0.71 | 12:43PM 0.60 | 1:05AM 0.77 | 12:52PM 0.55 | 1:49AM 0.79 | ||||||||||||||||||
Low Tide / height (m) | 5:48AM 0.11 | 6:09PM 0.21 | 6:47AM 0.13 | 6:49PM 0.15 | 7:44AM 0.18 | 7:27PM 0.10 | ||||||||||||||||||
Monday 01 | Tuesday 02 | Wednesday 03 | Thu 04 | |||||||||||||||||||||
| Sunrise | 5:09 | - | - | - | - | - | - | - | 5:09 | - | - | - | - | - | - | - | 5:09 | - | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:55 | - | - | - | - | - | - | - | 6:57 | - | - | - | - | - | - | - | 6:58 | - | - | - |
 |  |  | |  |  | |  |  | |  | | |  | | | | | | | | | | | |
Rain (mm) | 4 | 2 | - | - | - | - | - | 3 | 1 | 2 | - | 4 | 3 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 19 | 20 | 23 | 23 | 22 | 21 | 21 | 21 | 21 | 22 | 27 | 23 | 22 | 21 | 20 | 19 | 19 | 22 | 24 | 23 | 22 | 20 | 19 | 18 |
| Feels °C (?) | 21 | 20 | 23 | 23 | 23 | 22 | 23 | 23 | 22 | 23 | 27 | 26 | 23 | 21 | 20 | 20 | 20 | 21 | 22 | 22 | 22 | 20 | 19 | 18 |
- 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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