- 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 Thursday 28 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
18.2° C
(Which is 3.0°C colder than average for this time of year)How big are the waves at Siriu today (28 May):
- Morning surf: Morning surf (28 May, local time) - 4ft (1.2m), 8s period with SE swell.
- Afternoon surf: Afternoon surf (28 May, local time) - 3.5ft (1.1m), 8s period with SE swell.
- Evening surf: Evening surf (28 May, local time) - 3.5ft (1.0m), 7s period with SE swell.
The current surf forecast for Siriu at 2PM is: 1.1m 8s primary swell from a Southeast direction and 0.3m 10s secondary swell from a South-southeast direction (forecast issued at 08:00am May 28). The wind direction is predicted to be onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 May) | 4ft (1.2m) | 8s |
| Afternoon (28 May) | 3.5ft (1.1m) | 8s |
| Evening (28 May) | 3.5ft (1.0m) | 7s |
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 21°C on Sat afternoon, min 15°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 30 | Sun 31 | |||||||||||||||||||||
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 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | SSE 8 | SSE 8 | SSE 8 | SSE 9 | SE 9 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SSE 10 | SSE 10 | |
226 | 164 | 141 | 141 | 125 | 107 | 89 | 71 | 47 | 47 | 41 | 31 | 32 | 38 | 48 | 52 | 136 | 338 | 490 | 599 | 576 | 580 | 346 | 281 | |
Wind (km/h) | ||||||||||||||||||||||||
off | glassy | on | on | glassy | glassy | off | off | off | glassy | glassy | cross-on | cross-on | cross | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross-off | |
High Tide | 12:21PM0.67m | 00:04AM0.60m | 12:59PM0.70m | 00:31AM0.61m | 1:35PM0.72m | 00:59AM0.61m | ||||||||||||||||||
Low Tide | 6:13AM0.19m | 6:52PM0.26m | 6:46AM0.14m | 7:33PM0.28m | 7:18AM0.10m | 8:12PM0.31m | ||||||||||||||||||
 |  | | | | | |  | |  | | | | |  | | | | | | | | | | |
 | 6:54 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | 6:56 |
 | — | — | — | 5:27 | — | — | — | — | — | — | — | 5:27 | — | — | — | — | — | — | — | 5:27 | — | — | — | 5:25 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 18 | 19 | 19 | 17 | 16 | 15 | 15 | 15 | 16 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 17 | 20 | 21 | 18 | 17 | 18 | 16 |
16 | 18 | 18 | 18 | 18 | 16 | 14 | 15 | 15 | 16 | 18 | 18 | 17 | 17 | 17 | 15 | 15 | 16 | 19 | 19 | 18 | 17 | 17 | 15 | |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SSE 8 | SSE 8 | SSE 9 | SE 9 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SSE 10 | SSE 10 |
 kJ | 226 | 164 | 141 | 141 | 125 | 107 | 89 | 71 | 47 | 47 | 41 | 31 | 32 | 28 | 48 | 52 | 136 | 338 | 490 | 599 | 576 | 580 | 346 | 281 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SSE 8 | SSE 8 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | — | — | E 6 | ESE 7 | ESE 7 |
| kJ | 19 | 32 | 19 | 32 | 18 | 28 | 16 | 16 | 16 | 16 | 26 | 18 | 13 | 38 | 27 | 18 | 18 | 1 | 1 | — | — | 52 | 62 | 66 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | SSE 12 | SSE 12 | SSE 11 | SSE 12 | S 8 | SE 12 | SSE 10 | E 7 | E 7 | E 7 | E 7 | — | — | — | — | — | SE 12 | SE 12 |
| kJ | 1 | 1 | 1 | 5 | 1 | 1 | 14 | 13 | 13 | 14 | 6 | 6 | 10 | 1 | 1 | 1 | 1 | — | — | — | — | — | 37 | 40 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 2 | N 2 | N 7 | NE 3 | NNE 3 | NNE 3 | NNE 3 | NNE 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 2 | 4 | 7 | 4 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 9 | 16 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 27 | 6 | 0 | 6 | 6 | 6 | 9 | 16 | 9 | 6 | 6 | 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