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:
Hanson Bay surfForecast / SA – Kangaroo Island / Australia
48hr Weather and Surf, issued 9 pm Wednesday 17 Dec 2025 ACDTForecast update in hr min s Forecast update imminent
Hanson Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hanson Bay sea temperature is
17.0° C
(Which is normal for this time of year)How big are the waves at Hanson Bay today?
The current surf forecast for Hanson Bay at 4AM is: 1.0m 14s primary swell from a Southwest direction and 0.6m 9s secondary swell from a South-southeast direction (forecast issued at 09:30pm December 17). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (ACDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Dec) | 3.5ft (1.0m) | 12s |
| Afternoon (18 Dec) | 3.5ft (1.0m) | 14s |
| Evening (18 Dec) | 2.5ft (0.7m) | 13s |
Table - waves today at Hanson Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| 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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 14 | 14 | 14 | 12 | 12 | 12 | 14 | 11 | 13 | 11 | 13 | 13 | 13 | 13 | 13 | 10 | 10 | 9 | 8 | 8 | 9 | 12 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 171 | 200 | 327 | 363 | 306 | 330 | 240 | 401 | 167 | 162 | 172 | 149 | 309 | 304 | 273 | 269 | 490 | 752 | 680 | 372 | 273 | 349 | 220 | 190 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | cross- off | cross- off | off | off | cross- off | cross- off | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 1:43AM 0.84 | 1:39PM 0.24 | 2:11AM 0.89 | 2:07PM 0.24 | 2:41AM 0.93 | 2:30PM 0.25 | ||||||||||||||||||
Low Tide / height (m) | 5:31PM 0.15 | 9:43AM 0.17 | 6:13PM 0.13 | 10:00AM 0.14 | 6:52PM 0.09 | 10:20AM 0.14 | ||||||||||||||||||
Wed 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 6:00 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - | - |
| Sunset | 8:36 | - | - | - | - | - | - | - | 8:36 | - | - | - | - | - | - | - | 8:37 | - | - | - | - | - | - | - |
 |  | | | | | | | | |  |  |  |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 26 | 25 | 25 | 25 | 27 | 35 | 34 | 30 | 27 | 21 | 17 | 16 | 16 | 16 | 16 | 16 | 14 | 14 | 13 | 13 | 13 | 14 | 15 | 16 |
| Feels °C (?) | 24 | 22 | 22 | 21 | 22 | 29 | 29 | 25 | 25 | 20 | 16 | 16 | 15 | 14 | 13 | 13 | 10 | 11 | 11 | 11 | 10 | 11 | 11 | 13 |
- 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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