Surf Forecasts:
How big are the waves at Siriu today (12 Aug):
- Morning surf: Morning surf (12 Aug, local time) - 6ft (1.8m), 12s period with SSE swell.
- Afternoon surf: Afternoon surf (12 Aug, local time) - 5.5ft (1.7m), 12s period with SSE swell.
- Evening surf: Evening surf (12 Aug, local time) - 5ft (1.6m), 12s period with SSE swell.
The current surf forecast for Siriu at 5AM is: 1.9m 12s primary swell from a South-southeast direction and 0.2m 7s secondary swell from a East-northeast direction, 0.4m 7s secondary swell from a North-northeast direction (forecast issued at 08:00pm August 11). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Aug) | 6ft (1.8m) | 12s |
| Afternoon (12 Aug) | 5.5ft (1.7m) | 12s |
| Evening (12 Aug) | 5ft (1.6m) | 12s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 40mm), heaviest during Thu night. Very mild (max 18°C on Fri morning, min 12°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Tue 11 | Wednesday 12 | Thursday 13 | ||||||||||||||||
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) | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 |
Wave Graph  | ||||||||||||||||||
 kJ | 985 | 1016 | 1016 | 1016 | 1016 | 918 | 824 | 838 | 852 | 730 | 762 | 1187 | 1321 | 1318 | 1214 | 1161 | 1319 | 1259 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross |
High Tide | 00:59AM0.63m | 3:02PM0.76m | 1:25AM0.70m | 3:05PM0.70m | ||||||||||||||
Low Tide | 8:33PM0.34m | 8:17AM-0.08m | 8:57PM0.36m | 8:54AM-0.06m | ||||||||||||||
 | | | | |  | |  |  |  | |  | | | | | | | |
 | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:51 | — | — |
mm | 1 | 2 | 1 | 1 | 1 | 2 | 1 | — | — | — | — | — | — | — | 4 | 2 | 4 | 5 |
Temp °C | 13 | 12 | 12 | 12 | 13 | 13 | 14 | 16 | 16 | 15 | 15 | 16 | 16 | 17 | 17 | 17 | 17 | 17 |
Feels °C | 13 | 11 | 11 | 9 | 11 | 11 | 11 | 13 | 13 | 13 | 13 | 16 | 15 | 17 | 16 | 15 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 |
| kJ | 985 | 1016 | 1016 | 1016 | 1016 | 918 | 824 | 838 | 852 | 730 | 762 | 1187 | 1321 | 1318 | 1214 | 1161 | 1319 | 1259 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | NE 5 | NE 5 | NE 5 | NE 5 | ENE 5 | ENE 6 | ENE 6 |
| kJ | 12 | 11 | 6 | 6 | 5 | 8 | 5 | 5 | 5 | 1 | 1 | 22 | 19 | 13 | 13 | 17 | 13 | 13 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NE 5 | — | — | — | — | — | E 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 37 | — | — | — | — | — | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 7 | N 3 | NNE 3 | NNE 4 | NE 4 | NE 4 | NE 4 | NNE 5 | — | — | — | S 3 | SSW 3 | — |
| kJ | — | — | — | — | 21 | 5 | 4 | 9 | 12 | 14 | 21 | 49 | — | — | — | 8 | 7 | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 9 | 9 | 9 | 18 | 27 | 27 | 27 | 9 | 0 | 0 | 0 | 0 | 13 | 0 | 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)
Latest Updates
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