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Marion Bay Surf Forecast
/ TAS – East Coast (46 breaks) / Tasmania (59 breaks) /
Surf Forecasts:
Marion Bay surfForecast / TAS – East Coast / Australia
12 Day Weather and Surf, issued 3 am Friday 26 Sep 2025 AEST
Best Forecast Surf Conditions for Marion Bay this week:
The surf forecast for Marion Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 26) at 7AM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.7m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Marion Bay in the next 12 days are 2.0m 9s and forecast to arrive on Thursday (Oct 02) at 1PM. 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 Friday (Oct 03) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 26th Sep) | 2.5ft (0.8m) 15s |
| Best Surf | 4AM (Sun 28th Sep) | 3.5ft (1.0m) 16s |
| Most Powerful | 1PM (Thu 2nd Oct) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Marion Bay over the next 12 days.
Short Range Forecast Light rain (total 3mm), mostly falling on Fri morning. Very mild (max 12°C on Fri afternoon, min 4°C on Sun night). Winds decreasing (fresh winds from the WNW on Sat afternoon, calm by Sun night). | Days 3-6 Weather Summary Heavy rain (total 44mm), heaviest during Tue night. Very mild (max 16°C on Wed morning, min 6°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 01 | Thursday 02 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 15 | 15 | 15 | 13 | 14 | 16 | 17 | 16 | 10 | 9 | 9 | 9 | 9 | 14 | 13 | 9 | 9 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 222 | 157 | 172 | 92 | 61 | 318 | 566 | 257 | 151 | 115 | 115 | 90 | 42 | 71 | 135 | 405 | 264 | 125 | 240 | 281 | 117 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | off | off | off | cross- off | cross | off | cross- off | cross- on | cross- off | cross- on | cross- on | off | off | off | cross- off | cross | off | off |
High Tide / height (m) | 10:35AM 0.94 | 11:53PM 0.74 | 11:13AM 0.94 | 12:46AM 0.71 | 11:54AM 0.94 | 1:40AM 0.70 | 12:40PM 0.94 | 2:33AM 0.70 | 1:28PM 0.95 | 3:24AM 0.71 | 2:20PM 0.97 | 4:12AM 0.73 | 3:13PM 1.00 | ||||||||
Low Tide / height (m) | 5:33PM 0.30 | 4:55AM 0.51 | 6:22PM 0.30 | 5:34AM 0.54 | 7:11PM 0.29 | 6:16AM 0.55 | 8:01PM 0.29 | 7:05AM 0.56 | 8:51PM 0.27 | 7:58AM 0.55 | 9:40PM 0.24 | 8:55AM 0.54 | 10:28PM 0.21 | ||||||||
Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 01 | Thursday 02 | |||||||||||||||
| Sunrise | 5:52 | - | - | 5:50 | - | - | 5:48 | - | - | 5:47 | - | - | 5:45 | - | - | 5:43 | - | - | 5:41 | - | - |
| Sunset | - | 6:07 | - | - | 6:08 | - | - | 6:09 | - | - | 6:10 | - | - | 6:13 | - | - | 6:14 | - | - | 6:15 | - |
 |  |  | |  | | | |  |  | | |  |  |  | | | | | |  | |
Rain (mm) | 1 | - | - | - | 1 | - | 1 | - | - | - | - | - | - | 20 | 24 | - | - | - | - | - | - |
| Temp. °C | 11 | 12 | 11 | 12 | 9 | 8 | 10 | 9 | 6 | 12 | 13 | 8 | 12 | 12 | 11 | 16 | 15 | 12 | 14 | 13 | 10 |
| Feels °C (?) | 8 | 8 | 5 | 5 | 1 | -1 | 3 | 2 | 2 | 7 | 9 | 6 | 8 | 10 | 9 | 12 | 10 | 7 | 10 | 9 | 5 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for TAS - East Coast
The wind is still cross-off at Marion Bay (light winds from the N at Dunalley (Stroud Point) 14 km from Marion Bay). 1.8m 9s swell from the SSE with a 0.6m 15s groundswell, also from the SSE. 2 swells combining so expect closeout sets.
1 h 8 min ago
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 Marion Bay 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 Marion Bay Surf forecast
The above surf forecast table for Marion Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Marion Bay can be found by selecting the local surf guide option on the grey menu. Our Marion Bay 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 (Marion Bay) 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 Marion Bay 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.
Marion Bay is 39 km (24 miles) from Port Arthur. If you plan a holiday in East Coast of Tasmania, look for hotels and other accommodation in Port Arthur. Port Arthur has rooms for a wide range of budgets as well as car hire and transport links.
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