Secret Harbour Surf Break

Lat Long: 32.40° S 115.74° E

Secret Harbour Surf Forecast and Surf Report

Issued: 7 pm 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Secret Harbour sea temperature is
17.4° C
1.4° 

Secret Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Secret Harbour surf forecast from 30 Jul 2026:

  • Best quality surf: Wednesday 5 Aug, 11AM (local time) - 10ft (3.0m), 16s period, WSW swell with glassy winds.
  • Most powerful swell: Friday 7 Aug, 2AM (local time) - 10ft (3.0m), 15s period, W swell with 4,475 kJ wave energy.
  • Next surfable swell (1★+): Friday 31 Jul, 5AM (local time) - 5ft (1.6m), 18s period with WSW swell.

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 Friday (Jul 31) at 5AM. The primary swell is predicted to be 1.6m and 18s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Secret Harbour in the next 16 days are 3.0m 15s and forecast to arrive on Friday (Aug 07) 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 0.6m 3s period and expected on Friday (Jul 31) at 11AM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 31st Jul)5ft (1.6m) 18s
Best Surf11AM (Wed 5th Aug)10ft (3.0m) 16s
Most Powerful 2AM (Fri 7th Aug)10ft (3.0m) 15s

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


The Lowdown

Alright, surfers, Rusty here. We’ve got the full 16-day outlook for Secret Harbour, so let’s paddle out and see what’s cookin’.

Overall, the pattern is a slow burn. The first few days are a bit of a write-off, but we’ve got some serious standouts on the horizon. The water temp is sitting about average for this time of year, so nothing crazy there.

The week kicks off with a bit of a bust. Friday the 31st and Saturday the 1st are looking rough with cross-offshore and cross-shore winds, messy conditions, and moderate wave energy. The swell is there, but it’s not clean. You’re better off staying on the beach.

Things start to turn around on Sunday the 2nd. We’ve got a solid 7ft swell from the WSW, with a 14-second period, and the wind goes offshore in the morning. That’s a proper session. Then, in the afternoon, it goes glassy with a 6ft swell. That’s clean, fun surf. The energy is moderate, but it’s got some push. This is a solid window for experienced surfers.

Monday the 3rd keeps the good vibes going with a glassy morning and 5ft swell. It’s a bit smaller but still fun. The energy is lighter.

Tuesday the 4th and Wednesday the 5th are a mixed bag. Tuesday gets blown out with onshore winds, but the swell is pumping at 8ft with a very long 18-second period. Not worth it. Wednesday the 5th, however, is a standout. Wednesday morning is the real deal. We’ve got a 10ft groundswell from the WSW, a 16-second period, and it’s glassy. The combined energy is huge. That’s strong, powerful surf. It’s for experts only, but it will be excellent. The afternoon gets a bit messy with cross-on winds, so get on it early.

Thursday the 6th is a washout again with strong winds, and Friday the 7th sees a massive 15ft swell but with atrocious onshore winds. That’s a complete no-go.

The weekend of the 8th and 9th is a write-off. After that, the conditions are so poor or the swell is too big with bad wind that it’s not worth looking at until the end of the period.

Now, if you’ve got patience, the real gem is Wednesday the 12th of August. This is the standout of the entire outlook. The early morning session is a dream. We’ve got an 12ft groundswell from the WSW, a very long 19-second period, and it’s glassy. The wind is calm. The combined energy is massive. That’s some serious power. This is an exceptional day for expert surfers. The afternoon is still good with an 12ft swell and light cross-on wind, but the morning is the magic hour.

Thursday the 13th morning is also fantastic for experts with a 10ft swell, 18-second period, and cross-offshore winds. Energy is high. Another great session.

The last few days of the window are a fade-out. Friday the 14th and Saturday the 15th are marginal with cross-shore winds and strong breezes, so it’s time to hang up the board.

So, to sum it up: the best on offer is Wednesday morning the 12th of August for the big, glassy, powerful groundswell. The next best is Sunday the 2nd and Wednesday the 5th for cleaner, more manageable conditions. The rest is a waiting game.

Rusty out.

Short Range Forecast

Light rain (total 3mm), mostly falling on Fri night. Very mild (max 19°C on Fri afternoon, min 8°C on Sun morning). Winds increasing (calm on Thu night, fresh winds from the SW by Fri night).

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Tue morning. Very mild (max 17°C on Tue morning, min 11°C on Mon morning). Wind will be generally light.

Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
3
0
0
2
2
3
4
4
4
3
1
3
2
0
2
5
2
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
WSW
18
1.7
WSW
16
2.1
WSW
16
2
WSW
16
2.4
WSW
15
2.5
WSW
15
2.5
WSW
15
2
WSW
14
1.9
WSW
13
1.6
WSW
13
1.4
WSW
14
1.3
WSW
16
1.5
WSW
15
2.4
WSW
18
2.3
WSW
17
1.9
WSW
17
3
WSW
16
3
WSW
16
2.5
WSW
16
Wave Graph
Metric surfscale
Energy kJ
1464
1464
2271
1913
2474
2738
2550
1487
1249
905
800
806
1001
3713
2947
1886
4161
3752
3216
Wind (km/h)
10
NNE
20
N
25
NW
30
SSW
20
S
20
S
15
ESE
20
ENE
5
ENE
10
ENE
5
WSW
15
SSW
5
SW
20
WSW
20
SW
15
WSW
5
NNE
15
NW
20
N
Wind State
cross-off
cross-off
cross-on
cross-on
cross
cross
cross-off
off
glassy
off
glassy
cross-on
on
on
on
on
glassy
cross-on
cross-off
High Tide
10:08AM1.02m
00:56AM0.68m
10:41AM0.98m
00:44AM0.71m
11:13AM0.91m
00:46AM0.76m
11:39AM0.81m
1:02AM0.80m
11:42AM0.69m
1:34AM0.84m
2:25AM0.87m
Low Tide
6:09PM0.48m
3:09AM0.67m
6:19PM0.53m
4:16AM0.67m
6:18PM0.58m
5:25AM0.66m
6:05PM0.60m
7:00AM0.66m
5:38PM0.58m
4:54PM0.52m
clear
clear
clear
rain showers
cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
rain showers
part cloud
light rain
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:07
7:05
7:05
7:05
7:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:38
5:38
5:39
5:40
5:40
5:42
 mm
3
1
1
2
2
1
Temp °C
18
16
19
19
13
14
13
12
17
15
13
15
15
17
16
16
15
16
16
Feels °C
18
12
14
14
8
9
8
7
15
11
11
12
12
14
12
12
14
13
15
  • 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 
submit an eyeball surf report

Quick surf report for Secret Harbour:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Secret Harbour surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest