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Flat Rocks Beach (WA) Surf Forecast
/ WA – North West (27 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Flat Rocks Beach (WA) surfForecast / WA – North West / Australia
16 Day Weather and Surf, issued 1 pm Saturday 18 Apr 2026 AWSTForecast update in hr min s Forecast update imminent
Flat Rocks Beach (WA) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Flat Rocks Beach (WA) sea temperature is
23.0° C
(Which is slightly cooler than normal)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 Tuesday (Apr 21) at 5PM. The primary swell is predicted to be 3.5m and 14s period with a secondary swell of 3.0m and 14s. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Flat Rocks Beach (WA) in the next 16 days are 3.0m 16s and forecast to arrive on Tuesday (Apr 21) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Tue 21st Apr) | 11ft (3.5m) 14s |
| Best Surf | 5PM (Tue 21st Apr) | 11ft (3.5m) 14s |
| Most Powerful | 5AM (Tue 21st Apr) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Flat Rocks Beach (WA) over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Some drizzle, heaviest during Mon night. Warm (max 21°C on Sat afternoon, min 17°C on Sat night). Winds increasing (light winds from the S on Mon morning, strong winds from the SW by Mon night). | Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Thu morning, min 15°C on Tue night). Winds increasing (calm on Wed morning, fresh winds from the W by Thu afternoon). | ||||||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 12 | 11 | 14 | 14 | 14 | 13 | 13 | 17 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 15 | 14 | 14 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 897 | 701 | 1290 | 1459 | 790 | 976 | 744 | 3974 | 2213 | 4141 | 2371 | 1460 | 1228 | 777 | 919 | 1561 | 1632 | 1779 | 1833 | 1418 | 938 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross | cross- on | cross | on | cross- on | cross- on | cross | cross | cross- off | glass | cross- on | on | cross- on | on | on | cross | cross- on | cross- off | cross | ||
High Tide / height (m) | 1:03AM 0.32 | 10:08AM 0.75 | 10:42AM 0.77 | 11:21AM 0.76 | 12:07PM 0.71 | 1:03PM 0.65 | 2:24PM 0.57 | 11:18AM 0.49 | |||||||||||||||
Low Tide / height (m) | 5:39PM 0.07 | 1:46AM 0.32 | 6:54PM 0.05 | 8:40PM 0.05 | 10:24PM 0.05 | 11:38PM 0.06 | 12:32AM 0.09 | 1:09AM 0.13 | 1:08PM 0.48 | ||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||||
| Sunrise | - | - | 6:39 | - | - | 6:41 | - | - | 6:41 | - | - | 6:41 | - | - | 6:43 | - | - | 6:43 | - | - | 6:43 | ||
| Sunset | 6:00 | - | - | 5:59 | - | - | 5:58 | - | - | 5:57 | - | - | 5:55 | - | - | 5:54 | - | - | 5:53 | - | - | ||
 |  | | | |  | |  | | | | | |  | | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 21 | 20 | 20 | 20 | 19 | 19 | 21 | 21 | 19 | 19 | 18 | 20 | 19 | 19 | 21 | 21 | 21 | 20 | 20 | 20 | 23 | ||
| Feels °C (?) | 17 | 16 | 17 | 16 | 15 | 17 | 16 | 16 | 13 | 14 | 13 | 18 | 14 | 16 | 16 | 16 | 19 | 18 | 16 | 16 | 22 | ||
- Map Icons:
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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.
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