Surf Forecasts:
How big are the waves at Siriu today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 6.5ft (2.0m), 8s period with E swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 4.5ft (1.3m), 7s period with ESE swell.
- Evening surf: Evening surf (31 Aug, local time) - 3.5ft (1.1m), 9s period with ENE swell.
The current surf forecast for Siriu at 6AM is: 1.4m 8s primary swell from a East direction and 0.9m 6s secondary swell from a South-southeast direction, 1.0m 7s secondary swell from a East-southeast direction (forecast issued at 02:00am August 31). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 6.5ft (2.0m) | 8s |
| Afternoon (31 Aug) | 4.5ft (1.3m) | 7s |
| Evening (31 Aug) | 3.5ft (1.1m) | 9s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 39mm), heaviest during Mon morning. Warm (max 20°C on Tue morning, min 13°C on Wed night). Winds increasing (calm on Mon morning, strong winds from the SW by Tue afternoon). | ||||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 7 | E 8 | ENE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 10 | SE 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 205 | 200 | 260 | 516 | 341 | 151 | 418 | 192 | 196 | 221 | 270 | 319 | 318 | 413 | 517 | 459 | 361 | 540 | 433 | 375 | 402 | 471 | 535 | 517 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | glassy | cross-on | cross | cross | cross | cross-off | cross | off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | on | cross |
High Tide | 3:07AM0.80m | 3:37PM0.65m | 3:45AM0.75m | 4:01PM0.59m | 4:28AM0.68m | 4:25PM0.53m | ||||||||||||||||||
Low Tide | 10:20AM0.13m | 10:09PM0.25m | 11:11AM0.24m | 10:22PM0.27m | 12:29PM0.35m | |||||||||||||||||||
 |  | |  |  |  | | | | |  |  |  |  | |  | | | | | | | | | |
 | — | — | 6:30 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — |
 | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — |
mm | 7 | 4 | 3 | 3 | 16 | 8 | 2 | 1 | 3 | 1 | — | — | 1 | 4 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 20 | 19 | 16 | 16 | 15 | 14 | 14 | 16 | 18 | 18 | 16 | 15 |
Feels °C | 17 | 17 | 18 | 20 | 18 | 19 | 18 | 19 | 19 | 18 | 19 | 19 | 20 | 13 | 11 | 12 | 11 | 11 | 11 | 13 | 15 | 16 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | ESE 8 | E 8 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 10 | SE 10 |
| kJ | 205 | 200 | 260 | 350 | 341 | 151 | 207 | 192 | 196 | 221 | 270 | 319 | 318 | 330 | 355 | 459 | 361 | 423 | 433 | 375 | 402 | 471 | 535 | 517 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SSE 6 | SSE 6 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | ENE 9 |
| kJ | 3 | 61 | 56 | 221 | 181 | 137 | 111 | 106 | 78 | 45 | 43 | 26 | 25 | 23 | 23 | 22 | 78 | 77 | 82 | 147 | 154 | 159 | 124 | 96 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSE 6 | SSE 6 | SSE 6 | — | SE 10 | SE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 12 | 15 | 15 | — | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 6 | SSE 6 | ESE 7 | E 8 | — | — | E 8 | ENE 9 | — | NE 8 | — | SW 3 | SSW 5 | SE 8 | SE 8 | SSW 5 | S 6 | SE 8 | — | — | — | — | — | — |
| kJ | 36 | 75 | 105 | 516 | — | — | 418 | 186 | — | 132 | — | 4 | 45 | 413 | 517 | 66 | 60 | 540 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 13 | 68 | 16 | 0 | 0 | 0 | 9 | 0 | 0 | 16 | 6 | 0 | 0 | 10 | 113 | 275 | 15 | 13 | 10 | 0 | 0 | 10 | 13 |
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