Surf Forecasts:
How big are the waves at Siriu today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 6ft (1.8m), 8s period with NE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 6ft (1.8m), 8s period with NE swell.
- Evening surf: Evening surf (18 Aug, local time) - 4.5ft (1.3m), 8s period with ENE swell.
The current surf forecast for Siriu at 4AM is: 2.0m 8s primary swell from a Northeast direction and 1.6m 8s secondary swell from a East-northeast direction, 0.2m 11s secondary swell from a South direction (forecast issued at 08:00pm August 17). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 6ft (1.8m) | 8s |
| Afternoon (18 Aug) | 6ft (1.8m) | 8s |
| Evening (18 Aug) | 4.5ft (1.3m) | 8s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 32°C on Tue afternoon, min 18°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||
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) | ENE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 423 | 640 | 582 | 519 | 555 | 448 | 448 | 428 | 284 | 239 | 239 | 185 | 181 | 149 | 113 | 107 | 83 | 83 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | glassy | glassy | cross-off | cross-off | cross | cross | cross | cross | glassy |
High Tide | 3:57PM0.60m | 4:19AM0.67m | 4:18PM0.58m | 5:03AM0.59m | 4:39PM0.55m | |||||||||||||
Low Tide | 9:15PM0.26m | 9:51AM0.35m | 9:35PM0.25m | 9:21AM0.40m | ||||||||||||||
 | | | | |  | | | | | | |  |  | | | |  | |
 | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | — | 5:53 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 20 | 21 | 21 | 26 | 31 | 32 | 23 | 23 | 21 | 18 | 18 | 19 | 21 | 20 | 19 | 18 |
Feels °C | 20 | 19 | 19 | 20 | 20 | 26 | 30 | 31 | 24 | 25 | 23 | 18 | 19 | 19 | 20 | 20 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 19 | 400 | 351 | 323 | 323 | 264 | 270 | 270 | 284 | 239 | 239 | 185 | 181 | 149 | 113 | 107 | 83 | 83 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SSE 10 | SSE 11 | SSE 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 9 | SSW 3 | S 3 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 |
| kJ | 3 | 18 | 11 | 11 | 9 | 8 | 8 | 2 | 2 | 7 | 1 | 1 | 2 | 2 | 1 | 1 | 5 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | E 14 | S 9 | S 9 | SE 8 | SE 12 | SE 13 | SE 13 | SE 13 | S 3 |
| kJ | — | — | — | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 6 | 2 | 2 | 6 | 6 | 7 | 7 | 2 |
Wind waves Height (m) Direction Period (s) | ENE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NNW 4 | SSW 3 | — | SSW 3 | SSW 3 | S 3 | S 3 | S 3 | S 3 | — |
| kJ | 423 | 640 | 582 | 519 | 555 | 448 | 448 | 428 | 7 | 1 | — | 1 | 3 | 1 | 1 | 1 | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 39 | 91 | 43 | 39 | 9 | 9 | 27 | 9 | 0 | 0 | 0 | 0 | 0 | 15 | 15 | 25 | 15 | 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