Surf Forecasts:
How big are the waves at Siriu today (30 Aug):
- Morning surf: Morning surf (30 Aug, local time) - 3.5ft (1.0m), 8s period with E swell.
- Afternoon surf: Afternoon surf (30 Aug, local time) - 3.5ft (1.0m), 8s period with E swell.
- Evening surf: Evening surf (30 Aug, local time) - 5ft (1.5m), 8s period with E swell.
The current surf forecast for Siriu at 12AM is: 1.1m 8s primary swell from a East-northeast direction and 0.6m 4s secondary swell from a South direction (forecast issued at 08:00pm August 29). An open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Aug) | 3.5ft (1.0m) | 8s |
| Afternoon (30 Aug) | 3.5ft (1.0m) | 8s |
| Evening (30 Aug) | 5ft (1.5m) | 8s |
Table - waves today at Siriu. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 135mm), heaviest during Mon night. Warm (max 21°C on Tue morning, min 17°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the SW by Tue afternoon). | ||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | ||||||||||||||||
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 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph | ||||||||||||||||||
211 | 202 | 171 | 165 | 161 | 134 | 130 | 130 | 234 | 313 | 343 | 528 | 496 | 501 | 698 | 551 | 558 | 558 | |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | glassy | glassy | glassy | cross-on | on | on | on | on | cross-on | cross | glassy | cross-off | glassy | cross-on | off |
High Tide | 2:33AM0.82m | 3:14PM0.70m | 3:07AM0.80m | 3:37PM0.65m | ||||||||||||||
Low Tide | 9:14PM0.24m | 9:40AM0.04m | 9:42PM0.24m | 10:20AM0.13m | ||||||||||||||
— | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | |
— | — | — | — | — | — | — | 5:59 | — | — | — | — | — | — | — | — | 6:00 | — | |
mm | 3 | 3 | — | — | — | — | — | 3 | 1 | 3 | 9 | 16 | 11 | 14 | 7 | 15 | 11 | 7 |
Temp °C | 18 | 18 | 18 | 18 | 17 | 18 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 18 | 19 | 18 | 19 |
Feels °C | 17 | 17 | 18 | 19 | 18 | 20 | 20 | 18 | 18 | 19 | 18 | 17 | 18 | 19 | 20 | 21 | 18 | 20 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 6 | — | E 8 | — | E 8 | E 8 | E 8 | E 8 |
211 | 202 | 171 | 165 | 161 | 134 | 130 | 130 | 161 | 201 | 11 | — | 496 | — | 545 | 551 | 558 | 558 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | S 4 | S 5 | S 5 | S 5 | SSE 5 | S 5 | SSE 6 | SSE 6 | — | — | — | — | — | ENE 9 | — | — |
10 | 9 | 15 | 17 | 12 | 12 | 9 | 15 | 10 | 10 | — | — | — | — | — | 154 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SE 9 | — | — | — | — | — | — | — | — |
— | — | 9 | 9 | 10 | 9 | 9 | 9 | 4 | 3 | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | S 3 | S 4 | S 5 | — | — | — | — | — | E 8 | E 8 | E 8 | ESE 8 | — | E 8 | E 8 | — | — | ENE 9 |
3 | 11 | 27 | — | — | — | — | — | 234 | 313 | 343 | 528 | — | 501 | 698 | — | — | 252 | |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 25 | 15 | 0 | 0 | 0 | 0 | 9 | 16 | 71 | 15 | 31 | 16 | 15 | 0 | 0 | 0 | 9 | 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)











