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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 23 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
19.6° C
(Which is 1.8°C colder than average for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 2PM is: 1.5m 12s primary swell from a South-southeast direction and 0.6m 6s secondary swell from a East direction (forecast issued at 08:00am May 23). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 5ft (1.6m) | 12s |
| Afternoon (23 May) | 5ft (1.5m) | 12s |
| Evening (23 May) | 4ft (1.2m) | 12s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Mon night. Warm (max 21°C on Mon morning, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | S 11 | S 11 | S 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | SSE 10 | SE 17 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 13 | |
903 | 715 | 599 | 603 | 579 | 411 | 320 | 303 | 286 | 238 | 233 | 187 | 170 | 163 | 131 | 128 | 122 | 125 | 295 | 539 | 848 | 857 | 756 | 577 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | glassy | off | glassy | cross-off | cross | cross-on | cross-on | cross | cross | cross | cross | |
High Tide | 4:48AM0.57m | 11:54PM0.61m | 6:16AM0.53m | 00:07AM0.57m | 8:32AM0.53m | 11:55PM0.55m | ||||||||||||||||||
Low Tide | 2:35PM0.19m | 3:37AM0.49m | 3:37PM0.20m | 4:20AM0.42m | 4:33PM0.22m | |||||||||||||||||||
 |  |  | |  | |  | | |  | | | | | | | | | | | | | | | |
 | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | 6:54 |
 | — | — | — | 5:29 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:28 | — | — | — | 5:28 |
4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | |
Temp °C | 14 | 15 | 16 | 17 | 16 | 16 | 16 | 14 | 14 | 17 | 20 | 19 | 17 | 17 | 17 | 16 | 16 | 19 | 21 | 21 | 18 | 18 | 18 | 18 |
13 | 14 | 15 | 17 | 15 | 15 | 15 | 12 | 12 | 16 | 18 | 17 | 17 | 18 | 17 | 16 | 16 | 19 | 20 | 19 | 16 | 17 | 17 | 17 | |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | ESE 6 | SSE 11 | S 11 | S 11 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SSE 10 | ESE 6 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 13 |
 kJ | 903 | 715 | 599 | 603 | 579 | 411 | 107 | 303 | 286 | 238 | 80 | 78 | 68 | 66 | 68 | 66 | 58 | 125 | 68 | 539 | 848 | 857 | 756 | 577 |
Swell 2 Height (m) Direction Period (s) | E 6 | ESE 6 | ESE 6 | E 6 | E 5 | SE 6 | SSE 11 | E 6 | E 7 | SSE 6 | S 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | ESE 6 | SSE 10 | ESE 6 | ESE 6 | E 6 | E 6 | E 6 |
| kJ | 60 | 74 | 42 | 21 | 13 | 34 | 320 | 78 | 72 | 67 | 233 | 187 | 170 | 163 | 131 | 128 | 122 | 52 | 120 | 68 | 56 | 51 | 38 | 38 |
Swell 3 Height (m) Direction Period (s) | SE 6 | SSE 6 | SSE 6 | E 9 | E 9 | E 5 | — | SSE 6 | SSE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | ENE 7 | E 7 | E 6 | SE 17 | S 9 | ENE 6 | NE 6 | E 14 | NE 6 |
| kJ | 9 | 25 | 14 | 2 | 2 | 20 | — | 44 | 58 | 84 | 89 | 91 | 86 | 62 | 45 | 35 | 32 | 20 | 295 | 85 | 4 | 13 | 4 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 6 | ESE 6 | ESE 6 | — | — | SSE 6 | — | — | — | — | — | — | — | — | — | NE 6 | NE 6 | NE 3 | NNE 6 | NNE 3 |
| kJ | — | — | — | — | 31 | 100 | 161 | — | — | 129 | — | — | — | — | — | — | — | — | — | 6 | 14 | 4 | 14 | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 15 | 0 | 0 | 0 | 0 | 0 | 6 | 9 | 9 | 9 | 9 | 9 | 9 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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