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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 14 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
21.6° C
(Which is normal for this time of year)How big are the waves at Siriu today?
The current surf forecast for Siriu at 7AM is: 1.9m 14s primary swell from a South-southeast direction and 0.3m 9s secondary swell from a East-northeast direction (forecast issued at 02:00am May 14). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 May) | 6.5ft (2.0m) | 13s |
| Afternoon (14 May) | 5.5ft (1.7m) | 13s |
| Evening (14 May) | 5ft (1.6m) | 12s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 20°C on Sat morning, min 16°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 14 | Friday 15 | Saturday 16 | ||||||||||||||||||||||
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 12 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 10 | S 11 | S 11 | S 11 | S 11 | S 10 | S 11 | S 11 | S 11 | |
596 | 528 | 1341 | 1319 | 1144 | 995 | 847 | 786 | 773 | 786 | 748 | 604 | 410 | 326 | 319 | 320 | 326 | 332 | 332 | 326 | 270 | 275 | 275 | 229 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | glassy | glassy | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | glassy | cross-off | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross | |
High Tide | 12:39PM0.75m | 1:06AM0.64m | 1:22PM0.79m | 1:21AM0.59m | 2:04PM0.80m | |||||||||||||||||||
Low Tide | 6:48AM0.18m | 7:22PM0.09m | 7:25AM0.14m | 8:15PM0.15m | 8:02AM0.11m | |||||||||||||||||||
 | | |  | | | | |  |  | |  |  | | | | | | | | | | | | |
 | — | — | 6:47 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — |
 | — | — | — | — | — | 5:32 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 15 | 17 | 19 | 19 | 18 | 17 | 16 | 16 | 16 | 17 | 18 | 18 | 17 | 17 | 16 | 16 | 17 | 18 | 20 | 20 | 19 | 19 |
14 | 14 | 14 | 17 | 19 | 18 | 18 | 16 | 15 | 14 | 14 | 15 | 16 | 16 | 16 | 17 | 15 | 16 | 18 | 19 | 21 | 20 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | S 11 | S 12 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 10 | S 11 | S 11 | S 11 | S 11 | S 10 | S 11 | S 11 | S 11 |
 kJ | 596 | 528 | 1341 | 1319 | 1144 | 995 | 847 | 786 | 773 | 786 | 748 | 604 | 410 | 326 | 319 | 320 | 326 | 332 | 332 | 326 | 270 | 275 | 275 | 229 |
Swell 2 Height (m) Direction Period (s) | ENE 9 | SSE 14 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | E 8 | E 4 | E 5 |
| kJ | 28 | 419 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 11 | 4 | 10 | 16 |
Swell 3 Height (m) Direction Period (s) | SE 14 | ENE 9 | ENE 9 | ESE 14 | SE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | ESE 14 | SE 14 | SE 14 | SE 14 | SE 14 | SE 14 | SE 13 | SE 13 | E 4 | SE 13 | SE 13 | E 8 | E 8 |
| kJ | 8 | 28 | 28 | 19 | 8 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 8 | 8 | 7 | 8 | 7 | 7 | 7 | 1 | 7 | 7 | 4 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 3 | SSW 3 | SSW 4 | SSW 4 | SSW 4 | — | — | — | — | — | — | — | — | ENE 5 | ENE 4 | ENE 5 |
| kJ | — | — | — | — | — | — | — | — | 4 | 4 | 20 | 18 | 11 | — | — | — | — | — | — | — | — | 4 | 20 | 33 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 9 | 27 | 9 | 6 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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