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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
16 Day Weather and Surf, issued 9 pm Monday 11 May 2026 AESTForecast update in hr min s Forecast update imminent
Marion Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Marion Bay sea temperature is
15.2° C
(Which is 1.3°C warmer than normal for this time of year)Best Forecast Surf Conditions for Marion Bay this week:
The surf forecast for Marion Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (May 12) at 1AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.4m and 14s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Marion Bay in the next 16 days are 0.7m 19s and forecast to arrive on Tuesday (May 12) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Monday (May 18) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 12th May) | 1.5ft (0.4m) 14s |
| Best Surf | 7AM (Tue 12th May) | 1.5ft (0.4m) 22s |
| Most Powerful | 1PM (Tue 12th May) | 2.5ft (0.7m) 19s |
Table - best surf conditions forecast for Marion Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Thu morning, min 11°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Sat morning, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Mon 18 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
ENE 14 | S 20 | SSE 18 | S 16 | SSE 14 | SSE 14 | SSE 13 | NE 4 | NE 5 | NE 6 | S 18 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | |
66 | 293 | 322 | 177 | 70 | 65 | 34 | 18 | 30 | 131 | 96 | 52 | 130 | 61 | 71 | 77 | 277 | 255 | 165 | 273 | 261 | |
Wind (km/h) | |||||||||||||||||||||
glassy | glassy | cross-on | cross-off | cross | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 3:07AM0.91m | 4:30PM0.91m | 4:14AM0.89m | 5:08PM0.98m | 5:24AM0.88m | 5:49PM1.05m | 6:35AM0.87m | 6:33PM1.11m | 7:46AM0.86m | 7:19PM1.17m | 8:56AM0.85m | 8:09PM1.21m | 10:03AM0.84m | ||||||||
Low Tide | 9:52AM0.23m | 10:24PM0.43m | 10:37AM0.25m | 11:26PM0.33m | 11:24AM0.30m | 00:26AM0.21m | 12:13PM0.35m | 1:26AM0.10m | 1:03PM0.41m | 2:25AM0.01m | 1:54PM0.47m | 3:25AM-0.05m | 2:48PM0.50m | ||||||||
 |  |  |  | | | | | | | | | |  | | | | | | | | |
 | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — |
 | — | — | 4:59 | — | — | 4:58 | — | — | 4:57 | — | — | 4:55 | — | — | 4:54 | — | — | 4:53 | — | — | 4:52 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 14 | 13 | 12 | 13 | 13 | 12 | 17 | 16 | 15 | 17 | 17 | 16 | 18 | 17 | 15 | 18 | 17 | 14 | 20 | 19 |
11 | 12 | 11 | 10 | 10 | 10 | 9 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 14 | 14 | 12 | 17 | 16 | |
Swell 1 Height (m) Direction Period (s) | SSE 9 | S 20 | SSE 18 | S 16 | SSE 14 | SSE 14 | SSE 13 | NE 4 | S 8 | NE 6 | ENE 6 | S 16 | ENE 6 | NE 6 | NE 6 | NE 6 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 |
 kJ | 66 | 293 | 322 | 177 | 70 | 65 | 34 | 6 | 6 | 66 | 44 | 47 | 71 | 61 | 45 | 34 | 133 | 255 | 165 | 273 | 261 |
Swell 2 Height (m) Direction Period (s) | ENE 14 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | S 8 | SSE 9 | S 16 | S 20 | S 18 | SE 13 | S 16 | S 15 | S 14 | S 16 | S 15 | S 15 | S 14 | S 13 | S 12 |
| kJ | 61 | 48 | 47 | 26 | 14 | 13 | 5 | 16 | 5 | 68 | 96 | 7 | 19 | 4 | 4 | 48 | 41 | 39 | 15 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | S 15 | ENE 13 | ENE 13 | ENE 12 | E 12 | E 11 | E 11 | S 12 | E 10 | S 8 | S 8 | — | E 13 | E 12 | E 10 | E 9 | — | — | — | — | S 21 |
| kJ | 17 | 32 | 32 | 14 | 11 | 2 | 2 | 3 | 2 | 5 | 1 | — | 3 | 3 | 2 | 7 | — | — | — | — | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 2 | — | NE 3 | NNE 4 | NE 4 | NE 5 | NE 6 | NE 6 | NE 6 | NE 6 | — | NE 6 | NE 6 | NE 8 | — | — | NNE 4 | — |
| kJ | — | — | — | 1 | — | 3 | 10 | 18 | 30 | 131 | 80 | 52 | 130 | — | 71 | 77 | 277 | — | — | 20 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 21 | 0 | 21 | 21 | 21 | 0 | 41 | 0 | 0 | 21 | 0 | 0 | 21 | 0 | 0 | 0 | 0 | 0 | 21 |
Best forecast wave conditions in East Coast of Tasmania | |||||||||||||||||||||
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 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 16 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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