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Big Rock Surf Forecast
/ WA – Margaret River (57 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Big Rock surfForecast / WA – Margaret River / Australia
48hr Weather and Surf, issued 1 am Monday 25 May 2026 AWSTForecast update in hr min s Forecast update imminent
Big Rock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Big Rock sea temperature is
20.8° C
(Which is slightly warmer than usual)How big are the waves at Big Rock today?
The current surf forecast for Big Rock at 4AM is: 1.6m 13s primary swell from a West-southwest direction and 0.8m 16s secondary swell from a West-southwest direction (forecast issued at 01:00am May 25). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (AWST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 3.5ft (1.0m) | 16s |
| Afternoon (25 May) | 5ft (1.6m) | 14s |
| Evening (25 May) | 5ft (1.6m) | 14s |
Table - waves today at Big Rock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 24mm), heaviest during Wed night. Warm (max 21°C on Wed morning, min 13°C on Mon morning). Winds increasing (light winds from the NNE on Mon night, strong winds from the N by Wed afternoon). | ||||||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
WSW 13 | WSW 13 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | SW 13 | SW 13 | SW 13 | WSW 19 | WSW 18 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WNW 14 | |
775 | 768 | 519 | 1139 | 1024 | 996 | 1083 | 731 | 599 | 400 | 394 | 382 | 379 | 692 | 799 | 1073 | 1165 | 1240 | 1428 | 1913 | 1818 | 1873 | 1948 | 5462 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off | cross | cross | cross | cross | cross | cross-on | cross-on | |
High Tide | 8:30AM0.79m | 8:53PM0.63m | 7:58AM0.82m | 7:44AM0.87m | ||||||||||||||||||||
Low Tide | 00:49AM0.57m | 4:08PM0.59m | 00:15AM0.61m | 4:14PM0.50m | 4:38PM0.43m | |||||||||||||||||||
 |  |  | | |  | | | | | | | |  | | | | | |  |  |  |  | | |
 | — | 7:11 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:21 | — | — | — | — | — | — | — | 5:21 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 6 | 6 | 9 | 1 | |
Temp °C | 14 | 13 | 13 | 16 | 18 | 18 | 18 | 17 | 16 | 18 | 18 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 18 | 18 | 19 | 19 |
11 | 9 | 8 | 10 | 12 | 14 | 14 | 14 | 11 | 14 | 13 | 13 | 14 | 15 | 16 | 16 | 16 | 15 | 16 | 16 | 12 | 12 | 13 | 13 | |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 12 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 18 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WNW 10 | WSW 15 | WSW 14 |
 kJ | 775 | 768 | 481 | 1139 | 1024 | 996 | 1083 | 731 | 599 | 400 | 394 | 382 | 286 | 692 | 799 | 1073 | 1165 | 1240 | 1428 | 1913 | 1818 | 838 | 1948 | 1939 |
Swell 2 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 16 | S 10 | S 10 | S 9 | S 9 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 11 | W 11 | W 10 | WNW 10 | SW 11 | WSW 15 | — | — |
| kJ | 452 | 334 | 519 | 8 | 7 | 7 | 6 | 171 | 213 | 195 | 189 | 185 | 185 | 231 | 212 | 257 | 323 | 517 | 609 | 586 | 19 | 1873 | — | — |
Swell 3 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | — | — | — | — | S 9 | W 22 | WSW 21 | WSW 20 | W 20 | WSW 19 | SW 13 | SW 13 | SW 12 | SW 12 | — | — | SW 11 | — | — | — | — |
| kJ | 33 | 18 | 17 | — | — | — | — | 2 | 9 | 45 | 82 | 196 | 379 | 190 | 190 | 116 | 92 | — | — | 33 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 4 | NNE 3 | NNE 4 | N 5 | N 6 | N 6 | NNW 6 | NNW 6 | N 6 | N 6 | N 6 | N 6 | N 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | N 6 | NW 7 | N 7 | NW 9 | WNW 14 |
| kJ | 6 | 6 | 29 | 83 | 100 | 110 | 101 | 104 | 118 | 110 | 169 | 214 | 251 | 273 | 273 | 235 | 205 | 253 | 205 | 193 | 820 | 636 | 1426 | 5462 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 44 | 53 | 53 | 44 | 44 | 44 | 44 | 44 | 44 | 144 | 159 | 144 | 53 | 89 | 144 | 144 | 144 | 221 | 159 | 159 | 279 | 251 |
Best forecast wave conditions in Margaret River | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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