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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 pm Saturday 16 May 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
21.3° C
(Which is slightly cooler than normal)How big are the waves at Siriu today?
The current surf forecast for Siriu at 10PM is: 1.1m 11s primary swell from a South direction and 0.2m 8s secondary swell from a East direction (forecast issued at 02:00pm May 16). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | - | - |
| Afternoon (16 May) | 3.5ft (1.1m) | 11s |
| Evening (16 May) | 3.5ft (1.1m) | 11s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Mon morning. Warm (max 21°C on Sun morning, min 13°C on Mon night). Winds increasing (calm on Sat night, fresh winds from the SW by Mon afternoon). | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 11 | SSE 11 | SSE 11 | SSE 11 | S 11 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | S 10 | S 10 | S 10 | S 7 | S 7 | S 7 | SSE 6 | S 9 | S 7 | S 7 | S 7 | SSE 14 | SSE 18 | |
275 | 286 | 286 | 286 | 229 | 229 | 225 | 177 | 170 | 133 | 125 | 122 | 94 | 120 | 333 | 569 | 400 | 170 | 39 | 269 | 623 | 521 | 315 | 1585 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | on | cross-on | cross | glassy | glassy | glassy | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 2:04PM0.80m | 1:35AM0.55m | 2:47PM0.78m | 1:51AM0.53m | 3:30PM0.73m | 2:11AM0.55m | ||||||||||||||||||
Low Tide | 9:10PM0.23m | 8:39AM0.09m | 10:06PM0.33m | 9:18AM0.08m | 11:03PM0.43m | |||||||||||||||||||
 | |  |  |  | | |  | | |  | | | | |  | | | | | | |  | | |
 | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — |
 | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | 5:30 |
— | — | — | — | 1 | — | — | — | — | — | 1 | 2 | 2 | 2 | 3 | 4 | 3 | 2 | 1 | 1 | — | — | — | — | |
Temp °C | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 19 | 21 | 19 | 19 | 18 | 18 | 18 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 14 |
21 | 20 | 19 | 20 | 21 | 19 | 19 | 20 | 22 | 19 | 19 | 17 | 18 | 16 | 13 | 13 | 11 | 9 | 9 | 9 | 9 | 9 | 10 | 11 | |
Swell 1 Height (m) Direction Period (s) | S 11 | SSE 11 | SSE 11 | SSE 11 | S 11 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | S 10 | S 10 | S 10 | SSE 15 | SSE 7 | SSE 7 | SSE 6 | SE 6 | ESE 6 | S 7 | SSE 7 | S 7 | SSE 18 |
 kJ | 275 | 286 | 286 | 286 | 229 | 229 | 225 | 177 | 170 | 133 | 125 | 122 | 94 | 120 | 22 | 355 | 227 | 170 | 39 | 36 | 358 | 327 | 178 | 1585 |
Swell 2 Height (m) Direction Period (s) | E 4 | E 8 | E 8 | E 8 | E 4 | E 7 | E 7 | ENE 7 | ESE 5 | ESE 5 | SE 5 | SE 4 | ENE 7 | ENE 5 | ENE 5 | SSE 15 | S 10 | S 9 | S 9 | SSE 12 | SE 15 | SSE 14 | SSE 14 | S 7 |
| kJ | 1 | 4 | 4 | 4 | 1 | 4 | 4 | 5 | 2 | 2 | 3 | 3 | 5 | 5 | 5 | 42 | 30 | 42 | 38 | 51 | 56 | 82 | 269 | 116 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 7 | E 7 | SE 12 | — | SE 12 | ENE 7 | ENE 7 | ENE 5 | ENE 7 | SSE 16 | SSE 16 | — | — | SSE 14 | SSE 13 | SSE 13 | SSE 16 | S 12 | SE 20 | ESE 6 | ESE 6 |
| kJ | 5 | 4 | 4 | 4 | 4 | 6 | — | 6 | 5 | 5 | 3 | 5 | 25 | 24 | — | — | 38 | 35 | 33 | 25 | 11 | 100 | 45 | 29 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SE 5 | S 2 | S 3 | S 4 | SSW 4 | S 7 | S 7 | S 7 | SSW 6 | SSW 6 | S 7 | S 7 | S 7 | S 7 | S 7 |
| kJ | — | — | — | — | — | — | — | — | — | 3 | 1 | 7 | 5 | 13 | 333 | 569 | 400 | 255 | 101 | 269 | 623 | 521 | 315 | 198 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 27 | 20 | 6 | 0 | 0 | 0 | 0 | 13 | 10 | 0 | 0 | 0 | 13 | 13 | 10 | 10 | 15 | 15 | 10 | 10 | 10 | 0 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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