Secret Harbour surf break

Secret Harbour surfForecast / WA – Perth City / Australia

information circle12 Day Weather and Surf, issued 1 am Wednesday 17 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
22.3° C
(Which is 2.0°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 Tuesday (Dec 23) at 8AM. The primary swell is predicted to be 1.9m and 16s 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 2.2m 16s and forecast to arrive on Tuesday (Dec 23) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Saturday (Dec 20) at 11PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 23rd Dec)6ft (1.9m) 16s
Best Surf 8AM (Tue 23rd Dec)6ft (1.9m) 16s
Most Powerful 2AM (Tue 23rd Dec)7ft (2.2m) 16s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 27°C on Thu night, min 14°C on Fri night). Mainly strong winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Sat night, min 13°C on Sat night). Winds decreasing (strong winds from the SW on Sat afternoon, light winds from the S by Sun morning).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
1
0
0
0
0
0
0
0
2
2
0
2
0
0
2
3
0
1
Swell
Height Map
Wave Height (m) & direction (?)
2.1
WSW
3
WSW
1.9
WSW
1.6
SW
1.9
SW
1.1
SW
0.7
WSW
1.4
SW
2.2
SSW
1.9
SW
2.5
SW
1
WSW
1.4
SW
2.1
SW
1.2
WSW
1.5
WSW
1.8
WSW
2.2
WSW
1.8
WSW
1.5
WSW
1.6
SW
Period(s) (?)91110106811577613131313131816151414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7231918670496224181103875284054923456891408426722199624501450930976
Wind
(km/h)
30
SW
35
SSW
25
SSE
15
SSW
35
SW
30
ESE
10
WSW
40
SSW
35
S
25
SSW
40
SSW
25
SE
10
S
35
SSW
25
SE
15
SSW
35
SSW
25
E
5
SW
25
SSW
35
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
crosscross-
on
cross-
on
cross-
off
oncross-
on
crosscross-
on
cross-
on
cross-
off
cross-
on
cross-
on
cross-
off
cross-
on
cross-
on
cross-
off
cross-
on
cross-
on
cross-
off
High Tide
/ height (m)
7:28PM
0.84
7:59PM
0.87
8:29PM
0.90
8:59PM
0.93
9:29PM
0.96
9:59PM
0.97
10:29PM
0.95
Low Tide
/ height (m)
5:07AM
0.16
5:27AM
0.13
5:53AM
0.13
6:24AM
0.15
6:56AM
0.20
7:28AM
0.26
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Sunrise5:03--5:03--5:05--5:05--5:05--5:05--5:07--
Sunset-7:20--7:21--7:22--7:22--7:22--7:22--7:23-
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C181820242427252222232326232022252223272727
Feels °C (?)131213211824241715181520201316211618252222
  • 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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