
Surf Forecasts:
How big are the waves at Big Rock today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 5ft (1.6m), 14s period with WSW swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 4.5ft (1.4m), 13s period with WSW swell.
- Evening surf: Evening surf (17 Sep, local time) - 5ft (1.5m), 13s period with WSW swell.
The current surf forecast for Big Rock at 7AM is: 1.5m 14s primary swell from a West-southwest direction and 0.6m 11s secondary swell from a South direction (forecast issued at 01:00am September 17). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 5ft (1.6m) | 14s |
| Afternoon (17 Sep) | 4.5ft (1.4m) | 13s |
| Evening (17 Sep) | 5ft (1.5m) | 13s |
Table - waves today at Big Rock. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Sat morning. Warm (max 21°C on Thu morning, min 15°C on Fri night). Winds increasing (light winds from the NNE on Thu morning, near gales from the NW by Fri night). | ||||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map | ||||||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 17 | WSW 17 | WSW 17 | WSW 16 | NW 9 | WNW 10 | WNW 11 | W 14 | W 14 | W 13 | W 12 | WSW 12 | WSW 11 |
Wave Graph | ||||||||||||||||||||||||
1220 | 850 | 889 | 902 | 768 | 615 | 745 | 711 | 715 | 703 | 666 | 921 | 1217 | 1977 | 2388 | 2590 | 5086 | 8592 | 20212 | 17542 | 12092 | 7839 | 5816 | 3429 | |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | on | on | on | on | on | cross-on |
High Tide | 11:28PM0.79m | 11:55PM0.81m | 00:25AM0.81m | |||||||||||||||||||||
Low Tide | 2:13PM0.28m | 2:26PM0.27m | 2:39PM0.27m | |||||||||||||||||||||
— | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | |
— | — | — | — | — | 6:12 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 1 | 1 | 3 | 2 | 1 | — | — | 1 |
Temp °C | 20 | 18 | 19 | 21 | 20 | 18 | 17 | 17 | 16 | 16 | 17 | 20 | 21 | 20 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 17 | 16 |
Feels °C | 20 | 18 | 18 | 19 | 17 | 15 | 15 | 15 | 14 | 13 | 14 | 15 | 15 | 15 | 9 | 7 | 7 | 4 | 4 | 5 | 7 | 9 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | — | — | — | — | W 12 | WSW 12 | WSW 11 |
1220 | 850 | 889 | 902 | 768 | 615 | 745 | 711 | 715 | 703 | 666 | 593 | 1217 | 1977 | 2388 | 2107 | 2491 | — | — | — | — | 7839 | 5816 | 3429 | |
Swell 2 Height (m) Direction Period (s) | WSW 21 | S 11 | S 11 | S 10 | SW 18 | WSW 18 | WSW 19 | WSW 18 | WSW 19 | WSW 18 | WSW 16 | WSW 17 | WSW 12 | W 10 | W 11 | — | — | — | — | — | — | — | — | WSW 13 |
42 | 88 | 57 | 56 | 162 | 211 | 140 | 270 | 241 | 289 | 559 | 921 | 559 | 312 | 163 | — | — | — | — | — | — | — | — | 746 | |
Swell 3 Height (m) Direction Period (s) | WSW 21 | SW 20 | SW 20 | WSW 20 | SSW 11 | S 11 | S 10 | — | — | — | — | — | — | W 12 | — | — | — | — | — | — | — | — | — | — |
42 | 61 | 61 | 39 | 37 | 20 | 19 | — | — | — | — | — | — | 134 | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | N 3 | NW 4 | NW 4 | NW 5 | NW 5 | NNW 4 | N 5 | N 5 | N 6 | NNW 6 | NW 8 | NW 9 | WNW 10 | WNW 11 | W 14 | W 14 | W 13 | — | — | — |
— | — | — | — | 5 | 21 | 34 | 30 | 25 | 30 | 52 | 100 | 187 | 341 | 975 | 2590 | 5086 | 8592 | 20212 | 17542 | 12092 | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 53 | 202 | 302 | 53 | 53 | 53 | 44 | 44 | 44 | 144 | 144 | 144 | 159 | 630 | 459 | 630 | 753 | 1900 | 1689 | 1689 | 359 |
Best forecast wave conditions in Margaret River | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
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)












