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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
48hr Weather and Surf, issued 3 am Monday 18 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
15.4° C
(Which is 1.7°C warmer than normal for this time of year)How big are the waves at Marion Bay today?
The current surf forecast for Marion Bay at 6AM is: 1.6m 9s primary swell from a East-northeast direction and 0.2m 14s secondary swell from a South direction (forecast issued at 03:00am May 18). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.6m) | 9s |
| Afternoon (18 May) | 4.5ft (1.4m) | 9s |
| Evening (18 May) | 4.5ft (1.4m) | 9s |
Table - waves today at Marion Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 15°C on Tue morning, min 9°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | ||||||||||||||||||||||
1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 11 | ENE 11 | |
297 | 389 | 398 | 398 | 377 | 354 | 333 | 340 | 348 | 355 | 348 | 305 | 305 | 299 | 242 | 253 | 264 | 264 | 248 | 314 | 411 | 427 | 387 | 387 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | cross-off | off | off | off | cross-off | cross | cross | cross-off | off | off | off | off | cross-off | cross-off | cross-off | off | |
High Tide | 10:03AM0.84m | 9:02PM1.23m | 11:07AM0.82m | 9:58PM1.23m | 12:09PM0.81m | |||||||||||||||||||
Low Tide | 3:25AM-0.05m | 2:48PM0.50m | 4:25AM-0.07m | 3:44PM0.53m | 5:24AM-0.06m | 4:43PM0.54m | ||||||||||||||||||
 | | |  | |  |  |  | | | | | | |  | | | | | |  | | | | |
 | — | — | 7:15 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — |
 | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:51 | — | — |
1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 14 | 13 | 13 | 13 | 13 | 11 | 12 | 12 | 10 | 9 | 12 | 15 | 14 | 11 | 11 | 10 | 9 | 9 | 12 | 13 | 14 | 11 | 10 |
14 | 13 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 9 | 7 | 9 | 11 | 10 | 8 | 8 | 8 | 6 | 6 | 8 | 10 | 10 | 7 | 8 | |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 11 | ENE 11 | ENE 11 |
 kJ | 297 | 389 | 398 | 398 | 377 | 354 | 333 | 340 | 348 | 355 | 348 | 305 | 305 | 299 | 242 | 253 | 264 | 264 | 248 | 314 | 411 | 427 | 387 | 387 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 3 | S 14 | S 13 | S 13 | S 12 | S 12 | S 18 | S 18 | S 18 | S 18 | S 18 | S 4 | S 4 | S 17 | S 16 | SSE 16 | SSE 16 | SSE 16 |
| kJ | 38 | 16 | 15 | 15 | 16 | 16 | 1 | 15 | 14 | 3 | 3 | 3 | 6 | 6 | 25 | 25 | 25 | 3 | 3 | 23 | 47 | 51 | 50 | 50 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | S 22 | S 21 | S 14 | — | S 20 | S 20 | S 20 | S 19 | S 12 | S 12 | S 11 | — | SW 11 | S 17 | S 17 | SSW 17 | — | — | — | — |
| kJ | — | — | — | — | 9 | 9 | 16 | — | 8 | 7 | 7 | 7 | 3 | 3 | 3 | — | 4 | 24 | 24 | 55 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SW 3 | SSW 3 | SSW 3 | SSW 4 | — | — | — | — | — | — | SW 11 | S 3 | S 4 | S 4 | SSW 5 | SSW 4 | W 3 | SSW 16 | SSW 3 | SSW 4 | SSW 4 |
| kJ | — | — | — | 2 | 8 | 1 | 4 | — | — | — | — | — | — | 19 | 6 | 13 | 10 | 25 | 13 | 1 | 234 | 6 | 17 | 15 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 21 | 21 | 25 | 25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 25 | 25 | 0 | 0 | 0 | 0 | 0 | 25 | 25 |
Best forecast wave conditions in East Coast of Tasmania | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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