Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Bruny Island - Mabel Bay surfForecast / TAS – East Coast / Australia
48hr Weather and Surf, issued 10 pm Thursday 18 Dec 2025 AEDTForecast update in hr min s Forecast update imminent
Bruny Island - Mabel Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bruny Island - Mabel Bay sea temperature is
13.3° C
(Which is slightly cooler than normal)How big are the waves at Bruny Island - Mabel Bay today?
The current surf forecast for Bruny Island - Mabel Bay at 4AM is: 1.6m 12s primary swell from a South-southwest direction and 1.3m 5s secondary swell from a Southeast direction (forecast issued at 10:00pm December 18). An open ocean swell of 0.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Dec) | 4.5ft (1.4m) | 12s |
| Afternoon (19 Dec) | 4.5ft (1.3m) | 11s |
| Evening (19 Dec) | 3.5ft (1.0m) | 11s |
Table - waves today at Bruny Island - Mabel Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 6 | 10 | 10 | 10 | 10 | 9 | 7 | 7 | 7 | 8 | 7 | 11 | 11 | 11 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 932 | 890 | 771 | 658 | 595 | 492 | 372 | 366 | 281 | 263 | 160 | 154 | 151 | 61 | 180 | 67 | 771 | 294 | 57 | 51 | 97 | 97 | 121 | 167 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- off | cross- off | cross- on | on | cross- on | cross | cross- off | cross- off | glass | glass | cross- on | cross- on | cross- on |
High Tide / height (m) | 4:52AM 0.75 | 5:20AM 0.76 | 5:51AM 0.76 | |||||||||||||||||||||
Low Tide / height (m) | 2:30PM 0.13 | 3:16PM 0.12 | 4:02PM 0.11 | |||||||||||||||||||||
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:24 | - | - | - | - | - | - | - | 5:24 | - | - | - | - | - | - | - | 5:26 | - | - | - |
| Sunset | 8:49 | - | - | - | - | - | - | - | 8:50 | - | - | - | - | - | - | - | 8:51 | - | - | - | - | - | - | - |
 |  | | |  | | | | | | | |  | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 12 | 12 | 12 | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 14 | 15 | 15 | 16 | 16 | 15 | 14 | 13 | 12 | 13 | 13 | 14 | 15 |
| Feels °C (?) | 12 | 8 | 7 | 6 | 4 | 5 | 5 | 6 | 6 | 6 | 6 | 9 | 13 | 12 | 15 | 14 | 13 | 12 | 11 | 11 | 12 | 10 | 11 | 10 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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