Secret Harbour surf break

Secret Harbour surfForecast / WA – Perth City / Australia

information circle16 Day Weather and Surf, issued 7 am Monday 25 May 2026 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
20.1° C
(Which is 1.1°C colder than average for this time of year)

Best Forecast Surf Conditions for Secret Harbour this week:

The surf forecast for Secret Harbour over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 25) at 8PM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.6m and 6s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Secret Harbour in the next 16 days are 6.5m 15s and forecast to arrive on Monday (Jun 01) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Wednesday (May 27) at 11AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 25th May)3.5ft (1.0m) 14s
Best Surf 5PM (Sun 31st May)21ft (6.5m) 14s
Most Powerful 2AM (Mon 1st Jun)21ft (6.5m) 15s

Table - best surf conditions forecast for Secret Harbour over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 12mm), heaviest on Wed night. Warm (max 21°C on Tue afternoon, min 13°C on Mon morning). Winds increasing (light winds from the NE on Tue night, fresh winds from the WNW by Wed night).

Days 4-6 Weather Summary

Heavy rain (total 23mm), heaviest during Sat morning. Warm (max 21°C on Sat morning, min 16°C on Fri night). Winds increasing (calm on Fri morning, near gales from the WNW by Sat night).

Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
0
1
2
1
1
0
0
1
3
2
1
0
0
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)
1
WSW
16
1
W
15
0.9
W
12
0.6
WSW
13
0.7
W
19
1
W
17
1.3
W
16
1.6
W
16
3.5
WNW
9
2.4
W
13
2.5
W
13
2.1
W
12
1.7
W
11
1.1
SW
11
1.2
WSW
11
2.2
NW
7
3
WNW
8
4.5
WNW
11
6
W
13
6.5
W
14
6.5
W
15
Wave Graph
Metric surfscale
Energy kJ
527
441
251
133
351
600
864
1226
2053
2012
2243
1229
733
288
302
489
1178
4618
11021
17125
20340
Wind (km/h)
25
NNE
10
NW
20
NE
30
N
10
NW
20
NE
30
N
30
NNW
35
WNW
25
WSW
20
WSW
10
WSW
10
NNW
20
NNW
35
NE
45
WNW
40
NW
55
WNW
65
WNW
65
WNW
55
WSW
cross-off
cross-on
cross-off
cross-off
cross-on
cross-off
cross-off
cross
cross-on
on
on
on
cross
cross
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
8:32AM0.86m
7:33AM0.88m
7:15AM0.92m
7:28AM0.96m
7:53AM0.99m
8:22AM1.02m
8:52AM1.05m
Low Tide
11:38PM0.68m
5:44PM0.65m
4:40PM0.56m
4:53PM0.49m
5:16PM0.44m
5:45PM0.40m
6:17PM0.39m
part cloud
part cloud
cloud
clear
part cloud
cloud
part cloud
cloud
rain showers
rain showers
clear
cloud
cloud
part cloud
light rain
thunderstorm
clear
rain showers
light rain
light rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:05
7:07
7:07
7:07
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:21
5:21
5:21
5:20
5:20
5:20
12
1
5
7
10
4
5
11
Temp °C
16
20
20
19
21
20
19
21
20
19
19
18
17
19
18
21
20
19
17
17
17
10
15
16
12
16
19
12
15
16
14
14
15
17
16
15
14
14
12
5
5
6
Swell 1
Height (m)
Direction
Period (s)
1
WSW
16
1
W
15
0.9
W
12
0.6
WSW
13
0.7
W
19
1
W
17
1.3
W
16
1.6
W
16
1.3
NW
9
2.5
W
13
2.1
W
12
1.7
W
11
1.1
SW
11
1.2
WSW
11
0.7
SW
10
0.6
WSW
14
Energy kJ
527
441
251
133
351
600
864
1226
275
2243
1229
733
288
302
110
149
Swell 2
Height (m)
Direction
Period (s)
0.5
WSW
15
0.6
W
11
0.6
W
11
0.8
W
11
0.8
W
10
1
W
10
0.4
WSW
16
0.5
WSW
14
Energy kJ
121
82
82
163
133
204
84
118
Swell 3
Height (m)
Direction
Period (s)
0.1
W
23
0.3
W
20
0.6
WSW
13
0.7
NW
6
0.2
WSW
17
0.1
W
11
Energy kJ
10
73
129
35
29
2
Wind waves
Height (m)
Direction
Period (s)
0.9
N
4
0.7
NNW
5
0.8
N
6
1.2
N
5
1.1
NW
6
1.4
NNW
5
2.1
NW
10
3.5
WNW
9
2.4
W
13
0.8
N
4
2.2
NW
7
3
WNW
8
4.5
WNW
11
6
W
13
6.5
W
14
6.5
W
15
Energy kJ
27
24
46
78
85
94
784
2053
2012
18
489
1178
4618
11021
17125
20340
Nearest Offshore or Glassy
Rating
(10 max)
4
2
2
3
3
3
5
4
2
4
4
4
3
2
3
2
2
2
2
2
2
Distance (km)
218
46
101
272
278
46
272
272
360
1184
177
56
24
102
282
594
328
442
1620
1742
1620
Best forecast wave conditions in Perth City Coast
Rating
(10 max)
3
3
4
4
3
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
4
4
5
4
5
5
4
4
4
4
3
4
3
4
5
4
6
Header Global
Rating
(10 max)
4
4
4
4
9
9
7
6
7
7
7
9
9
6
5
5
5
7
7
5
7
  • 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 16 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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