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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 Thursday 30 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
23.5° C
(Which is slightly warmer than usual)How big are the waves at Siriu today?
The current surf forecast for Siriu at 9AM is: 1.1m 11s primary swell from a South direction and 0.4m 7s secondary swell from a East-northeast direction (forecast issued at 02:00am April 30). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 3.5ft (1.1m) | 11s |
| Afternoon (30 Apr) | 3.5ft (1.0m) | 10s |
| Evening (30 Apr) | 2.5ft (0.8m) | 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 4mm), mostly falling on Sat morning. Warm (max 26°C on Fri afternoon, min 14°C on Sat night). Winds increasing (calm on Thu afternoon, fresh winds from the SSW by Sat night). | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | SSE 10 | SSE 10 | S 10 | S 10 | E 11 | E 11 | E 11 | E 10 | E 10 | NE 5 | E 10 | E 10 | NNE 6 | S 12 | S 12 | S 12 | ENE 6 | S 8 | |
351 | 345 | 286 | 275 | 212 | 204 | 167 | 131 | 94 | 90 | 82 | 61 | 57 | 53 | 51 | 53 | 50 | 48 | 104 | 75 | 73 | 72 | 35 | 697 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | cross-off | cross-off | cross | cross-on | glassy | glassy | cross-off | cross-off | cross-off | cross | cross | cross-on | cross | cross | cross-off | cross-off | glassy | cross-off | glassy | cross-off | cross-off | cross-off | |
High Tide | 1:01PM0.75m | 1:04AM0.66m | 1:36PM0.76m | 1:25AM0.65m | 2:09PM0.76m | |||||||||||||||||||
Low Tide | 7:14AM0.16m | 7:46PM0.19m | 7:38AM0.12m | 8:18PM0.24m | 8:00AM0.10m | 8:48PM0.29m | ||||||||||||||||||
 | | |  | |  |  | | | | | | | | | |  | | |  |  | |  | | |
 | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — |
 | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:42 | — | — | — | — | — | — | — | 5:40 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 1 | 1 | |
Temp °C | 17 | 18 | 17 | 19 | 22 | 22 | 20 | 20 | 19 | 19 | 19 | 22 | 25 | 26 | 23 | 21 | 22 | 22 | 22 | 22 | 23 | 24 | 20 | 18 |
17 | 18 | 17 | 19 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 21 | 23 | 24 | 21 | 20 | 22 | 24 | 25 | 23 | 26 | 25 | 17 | 13 | |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | SSE 10 | SSE 10 | S 10 | S 10 | S 9 | S 9 | S 9 | E 10 | E 10 | E 10 | ENE 5 | E 10 | NE 6 | NE 6 | ENE 6 | NE 6 | ENE 6 | E 6 |
 kJ | 351 | 345 | 286 | 275 | 212 | 204 | 167 | 131 | 94 | 90 | 64 | 61 | 43 | 53 | 51 | 50 | 33 | 48 | 44 | 40 | 47 | 39 | 35 | 31 |
Swell 2 Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 11 | E 10 | E 10 | E 10 | E 10 | E 11 | E 11 | E 11 | S 10 | SSE 10 | SSE 12 | E 10 | SSE 12 | S 12 | S 12 | S 12 | S 12 | ESE 9 | ESE 9 |
| kJ | 26 | 26 | 26 | 18 | 17 | 57 | 53 | 51 | 49 | 52 | 82 | 58 | 57 | 48 | 32 | 47 | 50 | 47 | 75 | 75 | 73 | 72 | 27 | 28 |
Swell 3 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | NE 7 | ENE 7 | ESE 5 | SSE 12 | SSE 9 | SSE 11 | SSE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 12 | — |
| kJ | 33 | 32 | 30 | 27 | 27 | 14 | 8 | 7 | 8 | 9 | 10 | 14 | 10 | 7 | 29 | 16 | 41 | 8 | 29 | 28 | 28 | 27 | 5 | — |
Wind waves Height (m) Direction Period (s) | — | WSW 3 | — | — | — | — | — | — | — | — | — | — | NE 3 | NE 3 | NE 4 | NE 5 | N 4 | NE 5 | NNE 6 | — | — | S 2 | S 6 | S 8 |
| kJ | — | 3 | — | — | — | — | — | — | — | — | — | — | 2 | 14 | 41 | 53 | 6 | 47 | 104 | — | — | 1 | 144 | 697 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 13 | 38 | 0 | 0 | 0 | 0 | 0 | 9 | 16 | 269 | 160 | 49 | 39 | 0 | 0 | 0 | 0 | 0 | 137 | 493 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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