- Forecast
- Maps
- Live
- Weather State
- Spot Information
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 30 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
18.6° C
(Which is 2.4°C colder than average for this time of year)How big are the waves at Siriu today (30 May):
- Morning surf: Morning surf (30 May, local time) - 4.5ft (1.4m), 10s period with SE swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 6ft (1.8m), 11s period with SE swell.
- Evening surf: Evening surf (30 May, local time) - 5ft (1.5m), 10s period with SSE swell.
The current surf forecast for Siriu at 4PM is: 1.7m 11s primary swell from a Southeast direction and 0.1m 7s secondary swell from a East direction (forecast issued at 08:00am May 30). The wind direction is predicted to be onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 4.5ft (1.4m) | 10s |
| Afternoon (30 May) | 6ft (1.8m) | 11s |
| Evening (30 May) | 5ft (1.5m) | 10s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Sat afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | Tue 2 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSE 8 | SSE 6 | S 6 | S 6 | |
225 | 392 | 616 | 716 | 652 | 445 | 353 | 281 | 275 | 214 | 210 | 125 | 123 | 128 | 101 | 99 | 97 | 95 | 93 | 75 | 88 | 56 | 105 | 58 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-off | cross-on | on | cross-on | glassy | cross-off | cross-off | glassy | glassy | cross-on | cross-on | glassy | cross-off | cross-off | glassy | glassy | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | |
High Tide | 1:35PM0.72m | 00:59AM0.61m | 2:10PM0.73m | 1:29AM0.62m | 2:44PM0.72m | 2:00AM0.63m | ||||||||||||||||||
Low Tide | 7:18AM0.10m | 8:12PM0.31m | 7:50AM0.08m | 8:49PM0.34m | 8:23AM0.07m | 9:25PM0.36m | ||||||||||||||||||
 |  |  | |  | | | | | | | |  | | | | |  | | | | | | | |
 | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | 6:58 |
 | — | — | — | 5:27 | — | — | — | — | — | — | — | 5:25 | — | — | — | — | — | — | — | 5:25 | — | — | — | 5:25 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 19 | 20 | 17 | 17 | 16 | 16 | 16 | 18 | 20 | 19 | 17 | 17 | 16 | 15 | 15 | 16 | 18 | 18 | 17 | 16 | 16 | 15 |
17 | 18 | 19 | 20 | 17 | 18 | 16 | 16 | 16 | 19 | 20 | 19 | 17 | 17 | 16 | 16 | 15 | 16 | 17 | 16 | 15 | 14 | 14 | 13 | |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSE 8 | SSE 8 | S 6 | S 6 |
 kJ | 225 | 392 | 616 | 716 | 652 | 445 | 353 | 281 | 275 | 214 | 210 | 125 | 123 | 128 | 101 | 99 | 97 | 95 | 93 | 75 | 88 | 45 | 81 | 58 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 9 | E 7 | E 7 | E 6 | E 7 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ENE 6 | SE 8 | SE 8 |
| kJ | 23 | 22 | 1 | 1 | 2 | 43 | 56 | 54 | 56 | 55 | 40 | 41 | 41 | 39 | 39 | 29 | 29 | 28 | 20 | 20 | 20 | 13 | 24 | 42 |
Swell 3 Height (m) Direction Period (s) | E 7 | E 7 | — | — | — | — | — | — | SE 10 | E 6 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 |
| kJ | 1 | 1 | — | — | — | — | — | — | 137 | 51 | 123 | 64 | 42 | 40 | 39 | 23 | 24 | 23 | 22 | 33 | 31 | 31 | 28 | 27 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 3 | NNE 3 | N 3 | N 3 | N 3 | — | — | — | — | — | — | — | — | SSW 3 | SSW 3 | S 8 | S 5 | SSE 6 | S 6 | S 6 |
| kJ | — | — | — | — | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | 1 | 3 | 21 | 15 | 56 | 105 | 86 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 9 | 27 | 9 | 0 | 0 | 0 | 0 | 0 | 13 | 38 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 15 | 56 | 0 | 0 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Siriu surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest