Surf Forecasts:
How big are the waves at Siriu today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 5ft (1.5m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 4.5ft (1.4m), 8s period with ENE 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 7AM is: 2.0m 8s primary swell from a Northeast direction and 1.6m 8s secondary swell from a East-northeast direction, 0.2m 10s secondary swell from a South direction (forecast issued at 02:00am August 18). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 5ft (1.5m) | 8s |
| Afternoon (18 Aug) | 4.5ft (1.4m) | 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 34°C on Tue afternoon, min 18°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||||||
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 | 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 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 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | S 9 | ENE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 569 | 555 | 517 | 287 | 270 | 277 | 284 | 239 | 207 | 190 | 153 | 125 | 113 | 105 | 83 | 81 | 75 | 75 | 94 | 75 | 99 | 114 | 42 | 41 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross-off | glassy | glassy | cross-off | cross-off | cross | cross | cross-on | cross | glassy | cross | glassy | glassy | cross | cross-on | cross-on | cross | cross |
High Tide | 4:19AM0.67m | 4:18PM0.58m | 5:03AM0.59m | 4:39PM0.55m | 6:01AM0.51m | 12:32PM0.51m | 4:54PM0.51m | |||||||||||||||||
Low Tide | 9:51AM0.35m | 9:35PM0.25m | 9:21AM0.40m | 10:01PM0.27m | 9:02AM0.45m | 2:44PM0.49m | ||||||||||||||||||
 | | |  | | | | | |  | |  | | |  | | | | | | | | | | |
 | — | — | 6:43 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — |
 | — | — | — | — | — | 5:53 | — | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | — | 5:53 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 22 | 26 | 31 | 34 | 23 | 23 | 22 | 19 | 18 | 19 | 21 | 20 | 18 | 18 | 18 | 18 | 18 | 19 | 22 | 23 | 20 | 20 |
Feels °C | 19 | 20 | 21 | 26 | 30 | 33 | 23 | 25 | 23 | 19 | 19 | 19 | 21 | 20 | 18 | 20 | 19 | 20 | 20 | 19 | 20 | 21 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | 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 | ENE 8 | ENE 8 | ENE 8 | S 9 | S 9 | ENE 7 | ENE 7 |
| kJ | 351 | 323 | 323 | 287 | 270 | 277 | 284 | 239 | 207 | 190 | 153 | 125 | 113 | 105 | 83 | 81 | 75 | 75 | 94 | 75 | 76 | 55 | 42 | 41 |
Swell 2 Height (m) Direction Period (s) | SSE 11 | SSE 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 3 | S 9 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | SE 12 | SE 12 | S 9 | S 8 |
| kJ | 11 | 11 | 9 | 8 | 8 | 8 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 5 | 1 | 9 | 15 | 23 | 21 | 21 | 6 | 6 | 36 | 22 |
Swell 3 Height (m) Direction Period (s) | — | SE 8 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | S 9 | SE 12 | SE 13 | SE 13 | S 7 | S 3 | S 11 | S 10 | S 10 | S 9 | SE 12 | — | SE 12 | SSE 6 |
| kJ | — | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 6 | 6 | 7 | 1 | 1 | 20 | 31 | 45 | 41 | 6 | — | 5 | 3 |
Wind waves Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | N 4 | N 4 | N 4 | SSW 2 | SSW 3 | S 3 | SSW 3 | SSW 4 | S 3 | S 3 | S 3 | S 3 | SSW 3 | — | — | — | — | ENE 8 | ENE 7 | NE 4 | NE 4 |
| kJ | 569 | 555 | 517 | 31 | 31 | 22 | 1 | 1 | 1 | 1 | 5 | 1 | 1 | 1 | 1 | 2 | — | — | — | — | 99 | 114 | 26 | 20 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 43 | 39 | 9 | 9 | 9 | 6 | 0 | 0 | 0 | 0 | 0 | 15 | 15 | 15 | 15 | 0 | 9 | 0 | 0 | 9 | 16 | 16 | 9 | 33 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
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