Surf Forecasts:
Flat Rocks Beach (WA) surf forecast from 4 Aug 2026:
- Best quality surf: Saturday 8 Aug, 8PM (local time) - 11ft (3.5m), 15s period, SW swell with cross-shore winds.
- Most powerful swell: Tuesday 11 Aug, 2AM (local time) - 13ft (4.0m), 19s period, SSW swell with 11,186 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 5AM (local time) - 7ft (2.2m), 16s 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 Wednesday (Aug 05) at 5AM. The primary swell is predicted to be 2.2m and 16s period. 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 4.0m 19s and forecast to arrive on Tuesday (Aug 11) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 5th Aug) | 7ft (2.2m) 16s |
| Best Surf | 8PM (Sat 8th Aug) | 11ft (3.5m) 15s |
| Most Powerful | 2AM (Tue 11th Aug) | 13ft (4.0m) 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 Fri afternoon, min 14°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Fri night. Very mild (max 18°C on Fri night, min 13°C on Sun morning). Winds decreasing (strong winds from the SSW on Sat morning, calm by Sun morning). | ||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 17 | SW 17 | SW 17 | SW 16 | SW 15 | SSW 14 | SSW 19 |
Wave Graph  | |||||||||||||||||||
 kJ | 3016 | 2140 | 3263 | 4274 | 3964 | 3482 | 2612 | 2516 | 2567 | 2516 | 3580 | 4436 | 8124 | 7795 | 6404 | 3573 | 1875 | 2448 | 11186 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-on | cross-off | cross-on | on | on | cross | cross-on | on | cross-on | cross-on | cross | glassy | on | glassy | cross-off | cross | cross-off |
High Tide | 2:07AM0.56m | 2:44AM0.61m | 3:35AM0.65m | 4:40AM0.69m | 5:53AM0.73m | 7:04AM0.76m | |||||||||||||
Low Tide | 5:52PM0.21m | 4:32PM0.19m | 2:48PM0.10m | 3:18PM0.03m | 3:55PM-0.02m | 4:32PM-0.04m | |||||||||||||
 |  | | | |  |  | | |  |  | | | |  | | | | | |
 | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — |
 | 5:51 | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:53 | — |
mm | — | — | — | — | — | — | — | — | — | 4 | 1 | — | — | — | — | 1 | 3 | 1 | — |
Temp °C | 17 | 16 | 17 | 17 | 16 | 18 | 17 | 16 | 19 | 18 | 17 | 15 | 15 | 14 | 14 | 16 | 15 | 17 | 15 |
Feels °C | 14 | 14 | 14 | 14 | 15 | 15 | 14 | 14 | 15 | 14 | 10 | 8 | 9 | 13 | 12 | 15 | 13 | 13 | 7 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | — | — | SW 17 | SW 17 | SW 17 | SW 16 | SW 15 | SW 17 | SSW 19 |
| kJ | 3016 | 2140 | 3263 | 4274 | 3964 | 3482 | 2612 | 2516 | 2567 | 2516 | — | — | 8124 | 7795 | 6404 | 3573 | 1875 | 663 | 11186 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 20 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 377 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SW 15 | SW 14 | — | — | — | — | SSW 6 | SSW 14 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 3580 | 4436 | — | — | — | — | 142 | 2448 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 22 | 0 | 22 | 0 | 156 | 720 | 22 | 6 | 720 | 1774 | 2161 | 2177 | 41 | 30 | 2177 | 0 | 0 | 156 | 290 |
Best forecast wave conditions in North West WA | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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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.
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