Surf Forecasts:
How big are the waves at Siriu today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 6ft (1.8m), 9s period with ENE swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 5.5ft (1.7m), 9s period with ENE swell.
- Evening surf: Evening surf (21 Sep, local time) - 5ft (1.5m), 9s period with ENE swell.
The current surf forecast for Siriu at 2AM is: 2.4m 9s primary swell from a Northeast direction and 1.8m 9s secondary swell from a East-northeast direction, 0.2m 10s secondary swell from a South direction (forecast issued at 08:00pm September 20). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 6ft (1.8m) | 9s |
| Afternoon (21 Sep) | 5.5ft (1.7m) | 9s |
| Evening (21 Sep) | 5ft (1.5m) | 9s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Mon night. Warm (max 26°C on Mon morning, min 12°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | ||||||||||||||||
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) | NE 10 | NE 10 | NE 10 | NE 9 | NE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | S 7 | S 8 | S 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 1480 | 1476 | 1161 | 924 | 924 | 520 | 495 | 435 | 405 | 343 | 249 | 203 | 151 | 122 | 119 | 178 | 328 | 529 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:19PM0.46m | 12:28PM0.69m | 11:34PM0.55m | 12:45PM0.73m | ||||||||||||||
Low Tide | 5:46PM0.40m | 4:51AM0.17m | 5:58PM0.35m | 5:37AM0.09m | 6:22PM0.30m | |||||||||||||
 |  | | | | |  |  |  |  | |  | | |  | | |  | |
 | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — |
 | 6:08 | — | — | — | — | — | — | — | 6:08 | — | — | — | — | — | — | — | 6:09 | — |
mm | — | — | — | — | — | — | — | 1 | 2 | 2 | 2 | 4 | 1 | 1 | — | — | — | — |
Temp °C | 22 | 21 | 21 | 21 | 22 | 26 | 22 | 20 | 19 | 19 | 16 | 16 | 16 | 14 | 14 | 13 | 14 | 13 |
Feels °C | 21 | 21 | 21 | 20 | 21 | 27 | 21 | 21 | 20 | 20 | 13 | 15 | 14 | 10 | 9 | 8 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 942 | 799 | 672 | 561 | 561 | 520 | 495 | 435 | 405 | 343 | 249 | 203 | 151 | 122 | 119 | 90 | 92 | 96 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 12 | S 12 | S 6 | S 11 | S 11 | S 11 | E 13 | E 13 | SE 13 |
| kJ | 10 | 9 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 3 | 3 | 50 | 2 | 2 | 2 | 3 | 3 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 12 | — | — | S 11 | E 14 | E 14 | E 14 | — | E 16 | — |
| kJ | — | — | — | — | — | — | — | — | 3 | — | — | 2 | 4 | 4 | 4 | — | 5 | — |
Wind waves Height (m) Direction Period (s) | NE 10 | NE 10 | NE 10 | NE 9 | NE 9 | N 5 | N 5 | N 5 | — | SSW 3 | S 5 | SSW 6 | S 6 | S 6 | S 6 | S 7 | S 8 | S 8 |
| kJ | 1480 | 1476 | 1161 | 924 | 924 | 75 | 45 | 40 | — | 4 | 54 | 104 | 43 | 49 | 105 | 178 | 328 | 529 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 33 | 25 | 33 | 33 | 9 | 6 | 15 | 15 | 15 | 0 | 25 | 0 | 15 | 25 | 71 | 13 | 551 | 38 |
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