Flat Rocks Beach (WA) Surf Break

Lat Long: 29.02° S 114.78° E

Flat Rocks Beach (WA) 48 hour detailed Surf Forecast

Issued: 7 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Flat Rocks Beach (WA) sea temperature is
18.7° C
1.3° 

Flat Rocks Beach (WA) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Flat Rocks Beach (WA) today (20 Aug):

  • Afternoon surf: Afternoon surf (20 Aug, local time) - 8ft (2.5m), 16s period with SW swell.
  • Evening surf: Evening surf (20 Aug, local time) - 7.5ft (2.3m), 16s period with SW swell.

The current surf forecast for Flat Rocks Beach (WA) at 11PM is: 2.4m 16s primary swell from a Southwest direction (forecast issued at 07:00pm August 20). The wind direction is predicted to be cross-offshore.

Time (AWST) & DateWave HeightWave Period
Morning (20 Aug)--
Afternoon (20 Aug)8ft (2.5m)16s
Evening (20 Aug)7.5ft (2.3m)16s

Table - waves today at Flat Rocks Beach (WA). (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 3mm), mostly falling on Fri night. Warm (max 23°C on Fri afternoon, min 14°C on Thu night). Winds increasing (light winds from the SSE on Fri afternoon, fresh winds from the S by Sat night).

Thu
20
Friday
21
Saturday
22
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
1
3
3
3
3
4
3
2
4
4
3
4
4
3
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
SW
16
2.3
SW
16
2.4
SW
16
2.3
SW
16
2.3
SW
16
2.2
SW
16
2.2
SW
15
2.1
SW
15
2.1
SW
15
2.1
SW
15
2.2
SW
15
1.9
SW
15
2
SW
15
1.8
SW
14
1.7
SW
14
2.1
SW
17
2
SW
16
1.8
SW
16
1.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
3039
2668
2832
2653
2453
2285
2197
1968
1915
1760
2027
1526
1647
1402
1163
2622
1978
1513
1265
Wind (km/h)
25
S
25
SSE
25
SE
20
ESE
20
ESE
20
ESE
15
E
10
SSE
20
S
15
SE
15
NE
15
NNE
15
NNE
15
NNE
10
NW
20
W
30
SSW
35
S
35
S
Wind State
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
off
cross-off
cross-off
cross-off
cross-on
on
cross-on
cross
cross
High Tide
2:59AM0.59m
4:10AM0.58m
Low Tide
4:11PM0.16m
3:49PM0.14m
3:50PM0.12m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
rain showers
clear
clear
clear
clear
rain showers
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:59
6:00
6:00
 mm
1
1
Temp °C
18
17
16
15
14
14
20
23
21
19
18
17
16
17
20
19
19
18
18
Feels °C
13
12
12
10
9
10
17
21
17
17
16
15
15
16
20
17
15
13
12
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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