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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 Saturday 25 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
23.3° C
(Which is normal for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 1PM is: 0.5m 10s primary swell from a South direction and 0.5m 5s secondary swell from a East-northeast direction (forecast issued at 08:00am April 25). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 1.5ft (0.5m) | 10s |
| Afternoon (25 Apr) | 1.5ft (0.5m) | 10s |
| Evening (25 Apr) | 1.5ft (0.5m) | 10s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Sun night. Warm (max 27°C on Sun afternoon, min 18°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | S 5 | S 6 | S 8 | S 9 | S 9 | S 10 | |
52 | 49 | 48 | 47 | 68 | 48 | 30 | 28 | 26 | 25 | 25 | 34 | 44 | 31 | 29 | 17 | 17 | 17 | 29 | 63 | 110 | 262 | 383 | 455 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | cross | cross-on | cross | cross-off | glassy | glassy | cross-on | cross | cross | cross | cross-off | off | glassy | glassy | cross-off | glassy | cross | cross-on | cross-on | cross | cross | cross | |
High Tide | 11:12AM0.42m | 00:43AM0.69m | 10:53AM0.51m | 00:51AM0.66m | 11:19AM0.60m | 00:42AM0.64m | ||||||||||||||||||
Low Tide | 9:55AM0.42m | 4:27PM0.15m | 5:35AM0.42m | 5:18PM0.12m | 5:56AM0.36m | 6:01PM0.11m | ||||||||||||||||||
 |  | |  |  | | | |  |  |  | |  |  | | | | |  | | | | | | |
 | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | 6:37 |
 | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | 5:45 |
— | — | — | — | — | — | — | — | 1 | 1 | — | — | — | 2 | — | — | — | — | 1 | — | — | — | — | — | |
Temp °C | 21 | 22 | 23 | 25 | 22 | 21 | 21 | 21 | 20 | 21 | 26 | 27 | 25 | 22 | 21 | 21 | 21 | 22 | 22 | 22 | 20 | 20 | 19 | 18 |
22 | 24 | 24 | 26 | 24 | 23 | 24 | 24 | 22 | 23 | 27 | 28 | 27 | 24 | 23 | 24 | 23 | 24 | 22 | 23 | 21 | 19 | 18 | 17 | |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | S 9 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | S 5 | S 6 | S 8 | S 9 | S 9 | S 10 |
 kJ | 52 | 49 | 48 | 47 | 68 | 48 | 15 | 22 | 22 | 23 | 23 | 24 | 44 | 31 | 29 | 17 | 17 | 17 | 29 | 63 | 110 | 262 | 383 | 455 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | ENE 5 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | S 5 | S 9 | S 9 | S 9 | ESE 7 | S 9 | S 9 | S 8 | S 6 | S 6 | S 5 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 20 | 8 | 15 | 17 | 12 | 13 | 22 | 14 | 26 | 25 | 25 | 5 | 13 | 13 | 6 | 2 | 5 | 5 | 19 | 19 | 19 | 19 | 19 | 19 |
Swell 3 Height (m) Direction Period (s) | NE 4 | ESE 7 | SE 7 | SE 7 | ESE 7 | S 6 | S 10 | S 9 | S 5 | S 4 | ESE 7 | SE 11 | ESE 7 | ESE 7 | S 6 | S 8 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | NE 4 | N 4 | — |
| kJ | 4 | 19 | 11 | 12 | 9 | 10 | 30 | 28 | 8 | 4 | 5 | 5 | 5 | 4 | 2 | 5 | 10 | 10 | 11 | 10 | 11 | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | NNE 4 | — | SW 2 | SSW 3 | S 3 | S 6 | — | — | — | — | NNE 3 | NE 6 | N 4 | N 4 | — | — | SSW 3 | S 4 | — | — | — | — | — | — |
| kJ | 13 | — | 1 | 1 | 3 | 30 | — | — | — | — | 2 | 34 | 22 | 12 | — | — | 1 | 8 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 10 | 15 | 10 | 0 | 0 | 0 | 9 | 9 | 9 | 9 | 0 | 0 | 15 | 534 | 614 | 0 | 25 | 38 | 13 | 10 | 13 | 13 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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