Surf Forecasts:
Trial Harbour surf forecast from 26 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 7PM (local time) - 18ft (5.5m), 13s period, W swell with cross-onshore winds.
- Most powerful swell: Friday 28 Aug, 10AM (local time) - 13ft (4.0m), 17s period, WSW swell with 10,033 kJ wave energy.
- Next surfable swell (1★+): Tuesday 1 Sep, 7PM (local time) - 18ft (5.5m), 13s period with W swell.
Best Forecast Surf Conditions for Trial Harbour this week:
The surf forecast for Trial Harbour over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 01) at 7PM. The primary swell is predicted to be 5.5m and 13s period with a secondary swell of 5.0m and 13s. Another secondary swell of 3.5m and 10s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Trial Harbour in the next 16 days are 4.0m 17s and forecast to arrive on Friday (Aug 28) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 7s period and expected on Tuesday (Sep 01) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Tue 1st Sep) | 18ft (5.5m) 13s |
| Best Surf | 7PM (Tue 1st Sep) | 18ft (5.5m) 13s |
| Most Powerful | 10AM (Fri 28th Aug) | 13ft (4.0m) 17s |
Table - best surf conditions forecast for Trial Harbour over the next 16 days.
Short Range ForecastLight rain (total 4mm), mostly falling on Thu night. Very mild (max 12°C on Thu morning, min 9°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Tue afternoon. Very mild (max 17°C on Tue morning, min 9°C on Sun night). Winds increasing (light winds from the NNW on Sun night, strong winds from the NNW by Tue morning). | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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 12 | WSW 13 | WSW 13 | WSW 17 | WSW 16 | WSW 16 | WSW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 15 | SW 14 | SW 16 | WSW 15 | SW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 |
Wave Graph | |||||||||||||||||||||
384 | 755 | 3462 | 10033 | 8588 | 6652 | 4767 | 4936 | 4735 | 4976 | 5716 | 5945 | 6678 | 4586 | 6895 | 5386 | 3665 | 7927 | 6409 | 4780 | 9038 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | on | cross-on | cross-on | on |
High Tide | 1:14PM0.72m | 00:00AM0.37m | 1:25PM0.71m | 00:37AM0.43m | 1:35PM0.69m | 1:10AM0.50m | 1:43PM0.65m | 1:43AM0.56m | 1:48PM0.61m | 2:16AM0.61m | 1:49PM0.58m | 2:51AM0.65m | 1:46PM0.56m | 3:28AM0.66m | |||||||
Low Tide | 8:39PM0.33m | 5:53AM0.17m | 8:11PM0.32m | 6:31AM0.17m | 7:59PM0.29m | 7:06AM0.19m | 7:57PM0.25m | 7:39AM0.22m | 8:01PM0.19m | 8:10AM0.27m | 8:09PM0.13m | 8:37AM0.33m | 8:23PM0.08m | ||||||||
6:54 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:46 | — | — | 6:43 | — | — | |
— | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | |
mm | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 1 | 1 | 2 | 6 |
Temp °C | 12 | 12 | 12 | 11 | 10 | 9 | 11 | 11 | 11 | 11 | 12 | 10 | 13 | 13 | 12 | 17 | 12 | 10 | 11 | 11 | 11 |
Feels °C | 8 | 8 | 7 | 6 | 7 | 7 | 8 | 8 | 8 | 9 | 10 | 8 | 9 | 9 | 6 | 7 | 3 | 5 | 4 | 4 | 4 |
Swell 1 Height (m) Direction Period (s) | W 12 | WSW 13 | WSW 13 | WSW 17 | WSW 16 | WSW 16 | WSW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 15 | SW 14 | SW 16 | WSW 15 | SW 14 | WSW 14 | WSW 14 | WSW 13 | SSW 16 |
384 | 755 | 3462 | 10033 | 8588 | 6652 | 4767 | 4936 | 4735 | 4976 | 5716 | 5945 | 6678 | 4586 | 6895 | 5386 | 3665 | 7927 | 5122 | 4780 | 95 | |
Swell 2 Height (m) Direction Period (s) | SSW 10 | WSW 20 | WSW 19 | — | — | — | SW 24 | WSW 23 | SW 21 | SW 20 | — | SW 23 | SW 20 | SW 18 | — | — | — | NW 10 | — | — | — |
210 | 469 | 2205 | — | — | — | 23 | 50 | 220 | 244 | — | 131 | 1551 | 3579 | — | — | — | 883 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SW 14 | SSW 10 | — | — | — | — | — | WSW 23 | — | — | — | — | — | — | — | — | — | WNW 12 | — | — | — |
301 | 102 | — | — | — | — | — | 51 | — | — | — | — | — | — | — | — | — | 491 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 7 | WNW 9 | — | WSW 14 | NW 9 | WSW 13 |
— | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | 170 | 2354 | — | 6409 | 906 | 9038 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 222 | 222 | 237 | 218 | 218 | 218 | 218 | 218 | 218 | 218 | 218 | 218 | 218 | 218 | 222 | 238 | 242 | 218 | 225 | 242 | 218 |
Best forecast wave conditions in West Coast of Tasmania | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
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Information about the Trial Harbour Surf forecast
The above surf forecast table for Trial Harbour provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trial Harbour can be found by selecting the local surf guide option on the grey menu. Our Trial 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 (Trial 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 Trial 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.
Trial Harbour is 27 km (17 miles) from Strahan. If you plan a holiday in West Coast of Tasmania, look for hotels and other accommodation in Strahan. Strahan has rooms for a wide range of budgets as well as car hire and transport links.











