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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 2 am Monday 27 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
23.9° C
(Which is slightly warmer than usual)How big are the waves at Siriu today?
The current surf forecast for Siriu at 7AM is: 0.4m 7s primary swell from a East-northeast direction and 0.3m 5s secondary swell from a South direction (forecast issued at 02:00am April 27). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Apr) | 1.5ft (0.4m) | 7s |
| Afternoon (27 Apr) | 2.5ft (0.8m) | 7s |
| Evening (27 Apr) | 7.5ft (2.3m) | 9s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 15mm), heaviest on Wed afternoon. Warm (max 23°C on Mon morning, min 17°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | S 7 | S 8 | S 9 | S 9 | S 9 | S 11 | S 12 | S 12 | S 12 | S 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | S 13 | S 12 | SSE 12 | S 12 | S 11 | |
29 | 20 | 20 | 17 | 18 | 60 | 396 | 932 | 912 | 763 | 621 | 647 | 537 | 519 | 1077 | 1251 | 1197 | 1042 | 901 | 825 | 661 | 569 | 456 | 418 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | glassy | glassy | cross-on | cross-on | cross | cross | cross | cross | cross-off | glassy | glassy | cross-on | cross | glassy | glassy | cross-off | glassy | glassy | glassy | cross-off | glassy | cross-off | |
High Tide | 11:19AM0.60m | 00:42AM0.64m | 11:53AM0.67m | 00:37AM0.65m | 12:27PM0.72m | |||||||||||||||||||
Low Tide | 5:56AM0.36m | 6:01PM0.11m | 6:22AM0.28m | 6:38PM0.12m | 6:48AM0.22m | 7:13PM0.15m | ||||||||||||||||||
 |  |  |  |  | | | | | | |  | | |  | | | | |  | | | |  | |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — |
 | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:44 | — | — |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 2 | 4 | 7 | — | |
Temp °C | 22 | 21 | 21 | 22 | 23 | 22 | 19 | 19 | 18 | 18 | 18 | 18 | 19 | 20 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 19 |
24 | 23 | 23 | 25 | 23 | 22 | 17 | 16 | 15 | 15 | 16 | 17 | 19 | 19 | 17 | 18 | 18 | 19 | 19 | 21 | 21 | 21 | 21 | 19 | |
Swell 1 Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | S 5 | E 7 | S 9 | S 9 | S 9 | S 9 | S 11 | S 12 | S 12 | S 12 | S 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | S 13 | S 12 | SSE 12 | S 12 | S 11 |
 kJ | 29 | 20 | 20 | 17 | 13 | 17 | 286 | 563 | 551 | 492 | 621 | 647 | 537 | 519 | 1077 | 1251 | 1197 | 1042 | 901 | 825 | 661 | 569 | 456 | 418 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 6 | S 6 | S 5 | ENE 7 | SSE 10 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 7 |
| kJ | 12 | 5 | 5 | 5 | 18 | 10 | 18 | 19 | 19 | 11 | 10 | 10 | 19 | 19 | 19 | 28 | 28 | 30 | 29 | 28 | 25 | 32 | 25 | 25 |
Swell 3 Height (m) Direction Period (s) | ESE 7 | S 8 | SSE 10 | SSE 10 | SSE 10 | — | — | — | — | ENE 8 | — | ESE 8 | SE 10 | SE 11 | E 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 9 | ESE 10 | ESE 10 |
| kJ | 4 | 5 | 10 | 10 | 11 | — | — | — | — | 20 | — | 6 | 4 | 5 | 29 | 17 | 16 | 16 | 16 | 14 | 24 | 15 | 34 | 33 |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | SSW 3 | SSW 3 | S 5 | S 7 | S 8 | S 9 | S 9 | S 9 | — | — | — | — | — | — | — | — | — | — | SSW 4 | SW 4 | — | SW 4 |
| kJ | — | 1 | 1 | 4 | 25 | 60 | 396 | 932 | 912 | 763 | — | — | — | — | — | — | — | — | — | — | 11 | 16 | — | 11 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 551 | 551 | 27 | 38 | 893 | 10 | 10 | 10 | 10 | 0 | 0 | 0 | 20 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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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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