Surf Forecasts:
Flat Rocks Beach (WA) surf forecast from 23 Sep 2026:
- Best quality surf: Sunday 27 Sep, 2AM (local time) - 6ft (1.9m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 25 Sep, 8PM (local time) - 11ft (3.5m), 19s period, SW swell with 7,554 kJ wave energy.
- Next surfable swell (1★+): Thursday 24 Sep, 5AM (local time) - 4ft (1.2m), 12s period with SW swell.
Best Forecast Surf Conditions for Flat Rocks Beach (WA) this week:
The surf forecast for Flat Rocks Beach (WA) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 24) at 5AM. The primary swell is predicted to be 1.2m and 12s period with a secondary swell of 0.6m and 16s. Another secondary swell of 0.4m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Flat Rocks Beach (WA) in the next 16 days are 3.5m 19s and forecast to arrive on Friday (Sep 25) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 24th Sep) | 4ft (1.2m) 12s |
| Best Surf | 2AM (Sun 27th Sep) | 6ft (1.9m) 15s |
| Most Powerful | 8PM (Fri 25th Sep) | 11ft (3.5m) 19s |
Table - best surf conditions forecast for Flat Rocks Beach (WA) over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 19°C on Wed afternoon, min 13°C on Wed night). Winds increasing (light winds from the E on Wed morning, strong winds from the S by Fri afternoon). | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Mon morning. Very mild (max 18°C on Sun afternoon, min 10°C on Sat night). Winds decreasing (fresh winds from the ESE on Sat morning, calm by Sun morning). | ||||||||||||||||||||
Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tuesday 29 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SSW 14 | SW 14 | SW 21 | SW 19 | SW 18 | SW 17 | SW 16 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 18 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 834 | 732 | 537 | 398 | 1095 | 726 | 1096 | 6538 | 3681 | 3598 | 3668 | 1655 | 1016 | 711 | 577 | 366 | 1027 | 1087 | 479 | 485 | 432 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-on | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross-off | cross-off | on | on | cross-on | on | on | on | cross-on | cross-on | cross-off |
High Tide | 10:14PM0.41m | 7:43AM0.56m | 9:52PM0.43m | 8:30AM0.55m | 9:48PM0.47m | 9:17AM0.51m | 9:53PM0.53m | 10:07AM0.46m | 10:06PM0.58m | 11:00AM0.40m | 10:24PM0.64m | 12:03PM0.33m | 10:48PM0.68m | ||||||||
Low Tide | 2:57PM0.14m | 1:24AM0.38m | 3:06PM0.16m | 2:18AM0.33m | 3:15PM0.18m | 3:06AM0.28m | 3:22PM0.22m | 3:54AM0.23m | 3:26PM0.25m | 4:43AM0.19m | 3:26PM0.28m | 5:38AM0.16m | 3:20PM0.28m | ||||||||
 | |  | | | | |  |  | | | | | |  |  | | | | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | 6:16 | — | — | 6:16 | — | — | 6:17 | — | — | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 1 | 2 | — | — | — |
Temp °C | 17 | 19 | 18 | 17 | 18 | 17 | 17 | 18 | 18 | 16 | 16 | 12 | 15 | 18 | 18 | 17 | 18 | 18 | 17 | 17 | 17 |
Feels °C | 15 | 15 | 15 | 13 | 12 | 12 | 12 | 12 | 11 | 9 | 9 | 6 | 13 | 13 | 13 | 13 | 13 | 14 | 13 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SW 25 | SW 14 | SW 14 | — | SW 18 | SW 17 | SW 16 | SSW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 |
| kJ | 834 | 732 | 537 | 398 | 25 | 726 | 696 | — | 3681 | 3598 | 3668 | 1655 | 1016 | 711 | 577 | 321 | 1027 | 1087 | 479 | 485 | 432 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 16 | — | SSW 6 | SW 21 | — | SSW 10 | — | — | — | — | SW 22 | SW 20 | SW 18 | — | — | SSW 10 | SSW 9 | SSW 9 |
| kJ | — | — | — | 245 | — | 67 | 1096 | — | 664 | — | — | — | — | 18 | 97 | 366 | — | — | 192 | 135 | 132 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 23 | SW 16 | — | — | — | — | — | — | SW 21 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 192 | 375 | — | — | — | — | — | — | 18 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | S 4 | SSW 4 | SSW 14 | — | S 6 | SW 19 | — | — | SSW 16 | — | — | WSW 3 | — | — | — | — | — | — | — |
| kJ | — | 3 | 7 | 3 | 1095 | — | 66 | 6538 | — | — | 2936 | — | — | 3 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 33 | 502 | 22 | 156 | 484 | 33 | 484 | 2036 | 1969 | 799 | 2177 | 0 | 339 | 484 | 592 | 592 | 710 | 2185 | 597 | 2074 | 0 |
Best forecast wave conditions in North West WA | |||||||||||||||||||||
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)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Flat Rocks Beach (WA) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Flat Rocks Beach (WA) Surf forecast
The above surf forecast table for Flat Rocks Beach (WA) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Flat Rocks Beach (WA) can be found by selecting the local surf guide option on the grey menu. Our Flat Rocks Beach (WA) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Flat Rocks Beach (WA)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Flat Rocks Beach (WA) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Nearest