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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 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 4PM is: 1.1m 11s primary swell from a South-southeast direction and 0.2m 8s secondary swell from a East direction (forecast issued at 08:00am May 16). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 3.5ft (1.1m) | 11s |
| 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 23mm), heaviest during Sun night. Warm (max 21°C on Sun morning, min 13°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 11 | S 11 | 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 7 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 8 | S 8 | |
281 | 275 | 275 | 286 | 286 | 286 | 229 | 229 | 225 | 177 | 170 | 133 | 125 | 94 | 266 | 243 | 491 | 437 | 243 | 211 | 205 | 493 | 441 | 399 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | on | cross-on | cross-on | cross | cross | cross | 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 | |
High Tide | 2:04PM0.80m | 1:35AM0.55m | 2:47PM0.78m | 1:51AM0.53m | 3:30PM0.73m | 2:11AM0.55m | ||||||||||||||||||
Low Tide | 8:02AM0.11m | 9:10PM0.23m | 8:39AM0.09m | 10:06PM0.33m | 9:18AM0.08m | 11:03PM0.43m | ||||||||||||||||||
 |  | |  |  | | | | | | | |  | | | | |  | | | | | | | |
 | 6:48 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | 6:50 |
 | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — | — | 5:30 |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 5 | 3 | 1 | 3 | 2 | 3 | 2 | — | — | — | |
Temp °C | 16 | 17 | 20 | 20 | 19 | 19 | 19 | 19 | 18 | 19 | 21 | 20 | 19 | 18 | 17 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 |
16 | 17 | 20 | 20 | 19 | 20 | 20 | 20 | 19 | 20 | 22 | 19 | 18 | 16 | 15 | 11 | 11 | 12 | 10 | 8 | 9 | 10 | 10 | 10 | |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | SSE 11 | SSE 11 | SSE 11 | S 11 | S 11 | S 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | S 10 | ENE 5 | S 10 | SSE 7 | S 7 | S 7 | S 7 | S 9 | S 7 | S 7 | SSE 7 |
 kJ | 281 | 275 | 275 | 286 | 286 | 286 | 229 | 229 | 225 | 177 | 170 | 133 | 125 | 94 | 2 | 47 | 327 | 262 | 243 | 211 | 41 | 290 | 277 | 238 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 4 | E 4 | E 8 | E 8 | E 8 | ENE 4 | ENE 4 | ENE 4 | ENE 7 | E 5 | ENE 7 | E 5 | ENE 5 | SSE 16 | ENE 5 | SSE 15 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SE 15 | SSE 14 |
| kJ | 5 | 1 | 1 | 4 | 4 | 4 | 1 | 1 | 1 | 5 | 4 | 5 | 2 | 2 | 25 | 3 | 22 | 42 | 38 | 59 | 33 | 50 | 56 | 160 |
Swell 3 Height (m) Direction Period (s) | E 3 | E 8 | E 8 | E 8 | E 8 | SE 13 | E 7 | E 7 | E 7 | E 4 | E 4 | SE 12 | E 7 | SE 16 | E 7 | SSE 16 | NE 6 | NE 6 | NE 5 | SE 17 | SSE 16 | SE 16 | S 12 | SE 20 |
| kJ | 1 | 5 | 5 | 4 | 4 | 6 | 4 | 4 | 4 | 1 | 2 | 6 | 1 | 11 | 1 | 24 | 1 | 1 | 1 | 11 | 25 | 11 | 11 | 102 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ENE 4 | NE 7 | NE 7 | NE 7 | — | — | SE 4 | S 4 | S 4 | S 10 | S 7 | S 8 | S 7 | S 7 | SSW 7 | S 7 | S 7 | S 8 | S 8 |
| kJ | — | — | — | — | — | 3 | 9 | 9 | 19 | — | — | 3 | 6 | 18 | 266 | 243 | 491 | 437 | 414 | 340 | 205 | 493 | 441 | 399 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 9 | 27 | 9 | 6 | 6 | 6 | 0 | 0 | 10 | 15 | 13 | 10 | 15 | 10 | 10 | 10 | 10 | 10 | 10 | 0 | 10 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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