Secret Harbour surf break

Secret Harbour surfForecast / WA – Perth City / Australia

information circle12 Day Weather and Surf, issued 7 pm Saturday 13 Dec 2025 AWST
Forecast update in hr  min  s Forecast update imminent
Secret Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Secret Harbour sea temperature is
21.8° C
(Which is 1.6°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Secret Harbour this week:

The surf forecast for Secret Harbour over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 14) at 11AM. The primary swell is predicted to be 0.9m and 11s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Secret Harbour in the next 12 days are 1.6m 13s and forecast to arrive on Saturday (Dec 20) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Dec 14) at 8PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Sun 14th Dec)3ft (0.9m) 11s
Best Surf 2PM (Sun 14th Dec)3ft (0.9m) 11s
Most Powerful 2PM (Sat 20th Dec)5ft (1.6m) 13s

Table - best surf conditions forecast for Secret Harbour over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 2mm), mostly falling on Sun afternoon. Warm (max 35°C on Sun afternoon, min 21°C on Mon night). Winds decreasing (near gales from the ENE on Sun afternoon, calm by Mon night).

Days 3-6 Weather Summary Mostly dry. Warm (max 29°C on Fri morning, min 16°C on Wed night). Mainly fresh winds.

Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
1
0
0
0
1
2
0
0
0
0
0
0
1
0
0
2
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
SW
0.9
WSW
0.9
WSW
0.9
WSW
0.9
WSW
0.9
WSW
0.6
W
1.2
WSW
0.7
W
0.8
W
1.2
WSW
1.2
WSW
1
WSW
1.3
SW
0.9
WSW
0.9
WSW
0.9
WSW
1.5
SW
2.2
SW
0.9
WSW
2.1
SW
Period(s) (?)1111111212111615151514131212121111117136
Wave
Graph
(?)Metric surfscale
Energy kJ (?)347170176215215170179573229275580515329503199176180515450277290
Wind
(km/h)
25
E
20
NE
50
ENE
30
NE
15
WNW
10
NNW
5
SSE
20
WSW
25
SW
15
S
25
SW
25
SW
25
SE
15
S
30
SW
25
E
10
NNE
35
SSW
40
SSW
40
SSW
50
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffcross-
off
cross-
on
crossglassoncross-
on
cross-
on
oncross-
on
cross-
off
cross-
on
cross-
on
cross-
off
cross-
off
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
6:18PM
0.74
6:32PM
0.78
6:58PM
0.81
7:28PM
0.84
7:59PM
0.87
8:29PM
0.90
Low Tide
/ height (m)
6:37AM
0.38
6:08AM
0.32
5:24AM
0.26
5:01AM
0.20
5:07AM
0.16
5:27AM
0.13
5:53AM
0.13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
Sunrise-5:03--5:03--5:03--5:03--5:03--5:05--5:05-
Sunset--7:17--7:19--7:20--7:20--7:21--7:22--7:22
clear
part cloud
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
cloud
cloud
clear
part cloud
clear
Rain (mm)
--2------------------
Temp. °C313435282825222222202020222624262923211820
Feels °C (?)283033222725242322181716182318212719181111
  • 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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Information about the Secret Harbour Surf forecast

The above surf forecast table for Secret Harbour provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Secret Harbour can be found by selecting the local surf guide option on the grey menu. Our Secret Harbour 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 (Secret Harbour) 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 Secret Harbour 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.

Secret Harbour is 13 km (8 miles) from Mandurah. If you plan a holiday in Perth City Coast, look for hotels and other accommodation in Mandurah. Mandurah has rooms for a wide range of budgets as well as car hire and transport links.

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