Surf Forecasts:
Flat Rocks Beach (WA) surf forecast from 14 Jul 2026:
- Best quality surf: Sunday 19 Jul, 5AM (local time) - 8ft (2.5m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 18 Jul, 5PM (local time) - 10ft (3.0m), 17s period, SW swell with 4,766 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 8PM (local time) - 3.5ft (1.1m), 17s 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 (Jul 15) at 8PM. The primary swell is predicted to be 1.1m and 17s period with a secondary swell of 1.3m and 14s. 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 3.0m 17s and forecast to arrive on Saturday (Jul 18) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Jul 15) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 15th Jul) | 3.5ft (1.1m) 17s |
| Best Surf | 5AM (Sun 19th Jul) | 8ft (2.5m) 16s |
| Most Powerful | 5PM (Sat 18th Jul) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Flat Rocks Beach (WA) over the next 16 days.
Short Range ForecastModerate rain (total 15mm), heaviest on Fri afternoon. Warm (max 26°C on Wed afternoon, min 18°C on Fri afternoon). Winds increasing (light winds from the NNE on Wed night, strong winds from the NW by Fri afternoon). | Days 5-7 Weather SummaryHeavy rain (total 22mm), heaviest during Fri night. Very mild (max 19°C on Fri night, min 13°C on Sun night). Winds decreasing (fresh winds from the W on Fri night, light winds from the SSE by Sun morning). | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 16 | SW 15 | SW 15 | WSW 14 | SW 13 | SW 13 | WSW 14 | SW 14 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 15 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1108 | 874 | 747 | 1314 | 930 | 894 | 1463 | 618 | 591 | 1748 | 2103 | 4766 | 3490 | 2229 | 1665 | 1135 | 796 | 649 | 844 | 667 | 1289 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | cross-off | cross | cross | cross-off | cross | cross-on | on | on | cross-on | cross | cross | cross-on | cross-off | cross-off | cross-on | cross | cross | on |
High Tide | 9:49AM0.80m | 10:35AM0.74m | 11:14AM0.65m | 2:00AM0.38m | 11:41AM0.55m | 2:12AM0.45m | 11:00AM0.44m | 2:35AM0.51m | 3:05AM0.56m | ||||||||||||
Low Tide | 6:51PM-0.01m | 7:15PM0.06m | 7:14PM0.14m | 4:12AM0.36m | 6:41PM0.20m | 5:38AM0.40m | 6:15PM0.21m | 6:03PM0.20m | 5:51PM0.18m | ||||||||||||
 |  | | | | |  |  |  |  |  | | | | | | | |  |  | | |
 | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — |
 | 5:38 | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 |
mm | — | — | — | — | — | — | 1 | 1 | 13 | 17 | 1 | 1 | 3 | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 26 | 23 | 22 | 22 | 20 | 21 | 21 | 19 | 18 | 17 | 16 | 16 | 17 | 16 | 15 | 16 | 16 | 16 | 17 |
Feels °C | 18 | 13 | 20 | 21 | 18 | 17 | 18 | 17 | 14 | 15 | 13 | 13 | 13 | 14 | 14 | 12 | 13 | 14 | 14 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 16 | SW 15 | SW 15 | WSW 14 | SW 13 | SW 13 | WSW 14 | SW 14 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 15 | SW 14 | SW 14 |
| kJ | 1108 | 874 | 747 | 1314 | 930 | 894 | 1463 | 618 | 591 | 1065 | 2103 | 4766 | 3490 | 2229 | 1665 | 1135 | 796 | 649 | 844 | 667 | 1289 |
Swell 2 Height (m) Direction Period (s) | — | SW 19 | SW 18 | — | — | — | — | — | WNW 7 | — | SW 20 | — | — | — | — | — | SW 18 | SW 16 | — | — | — |
| kJ | — | 236 | 522 | — | — | — | — | — | 117 | — | 136 | — | — | — | — | — | 50 | 201 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 3 | NNE 4 | NNW 5 | — | NW 4 | WNW 5 | — | WNW 7 | — | WSW 14 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 10 | 15 | — | 10 | 64 | — | 261 | — | 1748 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 157 | 353 | 308 | 0 | 525 | 504 | 387 | 539 | 694 | 859 | 799 | 1774 | 30 | 22 | 36 | 0 | 0 | 22 | 6 | 6 | 720 |
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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