Surf Forecasts:
How big are the waves at Siriu today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 6ft (1.9m), 8s period with E swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 4.5ft (1.3m), 9s period with ENE swell.
- Evening surf: Evening surf (31 Aug, local time) - 3ft (0.9m), 9s period with ENE swell.
The current surf forecast for Siriu at 12PM is: 1.6m 8s primary swell from a East direction (forecast issued at 08:00am August 31). The wind direction is predicted to be cross-onshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 6ft (1.9m) | 8s |
| Afternoon (31 Aug) | 4.5ft (1.3m) | 9s |
| Evening (31 Aug) | 3ft (0.9m) | 9s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 56mm), heaviest during Mon morning. Very mild (max 19°C on Tue morning, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||||||||
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 | ENE 9 | ESE 8 | ENE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 |
Wave Graph | ||||||||||||||||||||||
343 | 466 | 341 | 233 | 140 | 137 | 212 | 231 | 284 | 352 | 381 | 467 | 439 | 439 | 450 | 471 | 418 | 349 | 365 | 382 | 382 | 415 | |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-on | cross | cross | cross | glassy | cross-on | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-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 | 2 | 2 | 17 | 11 | 5 | 5 | 8 | 2 | — | — | 1 | 3 | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 18 | 17 | 17 | 16 | 15 | 14 | 14 | 16 | 18 | 18 | 16 | 15 |
Feels °C | 18 | 19 | 19 | 19 | 19 | 19 | 20 | 18 | 19 | 19 | 16 | 15 | 15 | 13 | 13 | 12 | 12 | 14 | 16 | 16 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | 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 | SE 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 |
260 | 350 | 341 | 111 | 140 | 137 | 212 | 231 | 284 | 352 | 381 | 467 | 439 | 439 | 450 | 471 | 418 | 349 | 365 | 382 | 382 | 415 | |
Swell 2 Height (m) Direction Period (s) | SSE 6 | — | — | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 |
56 | — | — | 131 | 108 | 106 | 58 | 44 | 43 | 35 | 23 | 23 | 23 | 23 | 24 | 71 | 140 | 180 | 189 | 156 | 124 | 121 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSE 6 | SSE 6 | SSE 6 | — | — | SE 10 | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 19 | 24 | 23 | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | — | ENE 9 | — | — | — | — | — | — | S 4 | S 5 | S 6 | — | — | — | — | — | — | — | — | — |
343 | 466 | — | 233 | — | — | — | — | — | — | 22 | 65 | 50 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 0 | 15 | 15 | 9 | 9 | 9 | 0 | 9 | 0 | 0 | 15 | 38 | 13 | 13 | 0 | 0 | 0 | 0 | 10 | 38 | 15 | 6 |
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)












