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Surf Forecasts:

Flat Rocks Beach (WA) surfForecast / WA – North West / Australia

information circle12 Day Weather and Surf, issued 7 am Thursday 20 Nov 2025 AWST
Forecast 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
21.8° C
 (Which is 1.2°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Flat Rocks Beach (WA) this week:

The surf forecast for Flat Rocks Beach (WA) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Nov 21) at 8AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.8m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Flat Rocks Beach (WA) in the next 12 days are 2.3m 19s and forecast to arrive on Thursday (Nov 27) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 21st Nov)2.5ft (0.8m) 12s
Best Surf 8AM (Fri 21st Nov)2.5ft (0.8m) 12s
Most Powerful 2PM (Thu 27th Nov)7.5ft (2.3m) 19s

Table - best surf conditions forecast for Flat Rocks Beach (WA) over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 22°C on Thu afternoon, min 19°C on Fri night). Winds increasing (calm on Fri morning, fresh winds from the SSW by Sat night).

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Sun afternoon, min 16°C on Sun night). Mainly fresh winds.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SW
1.2
SW
0.9
SW
0.8
SW
0.7
SW
0.5
SW
0.7
SW
0.6
SW
0.6
SW
0.7
SW
1.4
SW
1.3
SSW
1
SW
1.7
SW
1.1
SW
1.3
SW
2.1
SSW
1.2
SW
1.5
SSW
1.7
SSW
1.6
SSW
Period(s) (?)1413131212141312121212614131312121110107
Wave
Graph
(?)Metric surfscale
Energy kJ (?)513503277172134971681261141425681213669964114631138360453555251
Wind
(km/h)
15
W
20
SSW
15
SSW
15
W
20
SSW
20
SSW
20
SW
25
SW
30
SSW
25
SSW
35
SSW
25
SE
20
S
30
SSW
35
S
30
S
30
S
30
SSE
25
SSW
35
S
30
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		cross-
on		oncross-
on		cross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		cross-
off		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		cross-
on		cross
High Tide
/ height (m)
8:44PM
0.70
9:07PM
0.71
9:33PM
0.70
10:00PM
0.69
10:26PM
0.68
10:52PM
0.65
11:16PM
0.62
Low Tide
/ height (m)
5:34AM
0.09
6:07AM
0.09
6:45AM
0.10
7:25AM
0.11
8:07AM
0.11
8:48AM
0.12
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Sunrise5:16--5:16--5:16--5:15--5:15--5:15--5:15--
Sunset-6:55--6:55--6:57--6:58--6:59--7:00--7:00-
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C212221222220202020192018171818191918192019
Feels °C (?)222120212118181716151513131313141412151513
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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View detailed surf forecast for Flat Rocks Beach (WA) at:
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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 12 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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