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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 Tuesday 19 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
20.7° C
(Which is 1.0°C colder than average for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 7AM is: 0.9m 14s primary swell from a South-southeast direction and 1.2m 7s secondary swell from a South-southeast direction, 1.6m 7s secondary swell from a South direction (forecast issued at 02:00am May 19). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 6.5ft (2.0m) | 13s |
| Afternoon (19 May) | 7ft (2.2m) | 16s |
| Evening (19 May) | 6.5ft (2.0m) | 14s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Tue morning, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 19 | Wednesday 20 | Thursday 21 | ||||||||||||||||||||||
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 7 | S 7 | SSE 14 | S 13 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | S 13 | SSE 13 | S 13 | SSE 13 | SSE 14 | SSE 14 | S 15 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | |
341 | 321 | 326 | 1412 | 2282 | 2186 | 1902 | 1644 | 1384 | 989 | 787 | 669 | 764 | 943 | 1360 | 1704 | 4021 | 3216 | 3204 | 2880 | 2702 | 2436 | 2049 | 1831 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | |
High Tide | 2:11AM0.55m | 4:16PM0.65m | 8:00PM0.64m | 2:35AM0.57m | 5:10PM0.58m | 9:36PM0.65m | 3:05AM0.59m | |||||||||||||||||
Low Tide | 10:05AM0.09m | 6:31PM0.63m | 00:01AM0.51m | 11:05AM0.11m | 6:10PM0.57m | 00:59AM0.56m | 12:14PM0.14m | |||||||||||||||||
 | |  |  |  | |  | | | | | | | | | | | | | | | | | | |
 | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — |
 | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — | — | — | — | — | — | 5:30 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 14 | 13 | 14 | 17 | 17 | 16 | 15 | 14 | 13 | 13 | 15 | 17 | 17 | 15 | 14 | 13 | 12 | 12 | 14 | 17 | 17 | 15 | 14 |
11 | 11 | 10 | 11 | 15 | 16 | 15 | 14 | 13 | 12 | 12 | 15 | 16 | 15 | 13 | 11 | 11 | 9 | 9 | 11 | 14 | 13 | 12 | 12 | |
Swell 1 Height (m) Direction Period (s) | S 7 | SSE 7 | SSE 7 | S 14 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | S 13 | SSE 13 | S 13 | SSE 13 | SSE 14 | SSE 14 | SSE 15 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 |
 kJ | 187 | 191 | 143 | 849 | 2282 | 2186 | 1902 | 1644 | 1384 | 989 | 787 | 669 | 764 | 943 | 1360 | 1704 | 2560 | 3216 | 3204 | 2880 | 2702 | 2436 | 2049 | 1831 |
Swell 2 Height (m) Direction Period (s) | SSE 12 | SSE 14 | SSE 14 | SSE 18 | SSE 16 | — | ESE 5 | ESE 5 | ESE 6 | E 6 | E 6 | E 6 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | — | — | — | — | — | — | E 8 |
| kJ | 29 | 118 | 326 | 486 | 686 | — | 10 | 10 | 10 | 10 | 9 | 6 | 8 | 9 | 9 | 9 | 4 | — | — | — | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | SSE 15 | SE 20 | SSE 19 | ESE 6 | — | — | — | ENE 7 | ENE 7 | — | — | — | — | — | E 9 | — | — | — | — | — | — | — | — | — |
| kJ | 44 | 61 | 243 | 21 | — | — | — | 5 | 5 | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 13 | — | — | — | — | — | — | — | — | — | — | — | — | S 15 | — | — | — | — | — | — | — |
| kJ | 341 | 321 | 253 | 1412 | — | — | — | — | — | — | — | — | — | — | — | — | 4021 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 10 | 13 | 10 | 0 | 0 | 0 | 0 | 0 | 13 | 13 | 10 | 0 | 6 | 0 | 0 | 0 | 13 | 15 | 0 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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