Surf Forecasts:
Secret Harbour surf forecast from 18 Oct 2026:
- Best quality surf: Friday 23 Oct, 5AM (local time) - 10ft (3.0m), 16s period, WSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 21 Oct, 11PM (local time) - 11ft (3.5m), 17s period, WSW swell with 7,176 kJ wave energy.
- Next surfable swell (1★+): Monday 19 Oct, 5AM (local time) - 7ft (2.2m), 13s 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 Monday (Oct 19) at 5AM. The primary swell is predicted to be 2.2m and 13s 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 3.5m 17s and forecast to arrive on Wednesday (Oct 21) at 11PM. Winds are predicted to be onshore 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 (Oct 24) at 11PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 19th Oct) | 7ft (2.2m) 13s |
| Best Surf | 5AM (Fri 23rd Oct) | 10ft (3.0m) 16s |
| Most Powerful | 11PM (Wed 21st Oct) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Secret Harbour over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 16°C on Sun morning, min 13°C on Sun night). Winds decreasing (fresh winds from the WSW on Sun morning, calm by Mon night). | Days 4-6 Weather SummarySome drizzle, heaviest during Wed night. Very mild (max 18°C on Wed morning, min 13°C on Thu night). Winds decreasing (fresh winds from the WSW on Wed night, light winds from the ESE by Fri night). | ||||||||||||||||||||
Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 17 | WSW 16 | WSW 16 | W 17 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | SW 14 | SW 13 | WSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3108 | 2540 | 1831 | 1295 | 889 | 688 | 1125 | 3756 | 4233 | 4116 | 5653 | 7117 | 5968 | 4972 | 4343 | 3460 | 3013 | 1752 | 2560 | 2870 | 1237 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross | cross-on | on | cross-on | cross-on | cross | on | cross-on | cross | cross-off | cross | cross |
High Tide | 00:16AM0.77m | 1:37AM0.73m | 10:25PM0.68m | 9:01PM0.66m | 6:22AM0.67m | 8:20PM0.67m | 7:45AM0.63m | 8:10PM0.70m | 8:55AM0.59m | 8:18PM0.75m | |||||||||||
Low Tide | 12:32PM0.33m | 12:49PM0.35m | 1:05PM0.38m | 00:44AM0.67m | 1:19PM0.40m | 1:28AM0.59m | 1:34PM0.43m | 2:09AM0.49m | 1:45PM0.45m | 2:51AM0.40m | 1:52PM0.46m | 3:36AM0.31m | |||||||||
 |  |  | | |  | | | | | |  | | | | | |  |  |  | | |
 | 5:33 | — | — | 5:33 | — | — | 5:31 | — | — | 5:31 | — | — | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — |
 | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — | 6:32 | — | — | 6:32 | — | — | 6:34 | — | — | 6:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 5 | 11 | 1 |
Temp °C | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 16 | 18 | 18 | 18 | 15 | 16 | 15 | 15 | 15 | 15 | 12 | 11 | 11 |
Feels °C | 10 | 9 | 11 | 13 | 12 | 12 | 14 | 13 | 14 | 14 | 13 | 13 | 9 | 10 | 10 | 12 | 11 | 11 | 8 | 4 | 4 |
Swell 1 Height (m) Direction Period (s) | — | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 17 | WSW 16 | WSW 16 | W 17 | — | WSW 16 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | — | WSW 12 |
| kJ | — | 2540 | 1831 | 1295 | 889 | 688 | 1125 | 3756 | 4233 | 4116 | 5653 | — | 5968 | 4972 | 4343 | 3460 | 3013 | 1752 | 2136 | — | 1237 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 26 | WSW 22 | WSW 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 13 | 91 | 507 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 14 | — | — | — | — | — | — | — | — | — | — | WSW 17 | — | — | — | — | — | SW 5 | SW 14 | SW 13 | SE 4 |
| kJ | 3108 | — | — | — | — | — | — | — | — | — | — | 7117 | — | — | — | — | — | 51 | 2560 | 2870 | 41 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1830 | 1620 | 60 | 21 | 1903 | 171 | 360 | 2004 | 328 | 405 | 589 | 369 | 177 | 177 | 101 | 44 | 143 | 21 | 0 | 1979 | 102 |
Best forecast wave conditions in Perth City Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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