Hanson Bay Surf Forecast

/ SA – Kangaroo Island (8 breaks) / South Australia (91 breaks) /

Australia (828 breaks)

Surf Forecasts:

Hanson Bay surfForecast / SA – Kangaroo Island / Australia

12 Day Weather and Surf, issued 8 am Wednesday 17 Sep 2025 ACST

Forecast 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 15.3° C
(Which is 1.1°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Hanson Bay this week:

The surf forecast for Hanson Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 17) at 6PM. The primary swell is predicted to be 2.5m and 13s period with a secondary swell of 2.5m and 13s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Hanson Bay in the next 12 days are 6.5m 14s and forecast to arrive on Saturday (Sep 20) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Sep 19) at 6AM.

Wave Type	Time (ACST) & Date	Wave Height & Period
Next good surf (1 star+)	6PM (Wed 17th Sep)	8ft (2.5m) 13s
Best Surf	12AM (Sat 20th Sep)	21ft (6.5m) 14s
Most Powerful	12AM (Sat 20th Sep)	21ft (6.5m) 14s

Table - best surf conditions forecast for Hanson Bay over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 3mm), mostly falling on Fri afternoon. Very mild (max 19°C on Thu morning, min 10°C on Fri night). Winds increasing (light winds from the NW on Thu night, strong winds from the WNW by Fri morning).									Days 3-6 Weather Summary Mostly dry. Very mild (max 14°C on Sun morning, min 10°C on Mon night). Mainly fresh winds.
	Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	!	5	4	4	2	4	2	0	!	0	!	4	3	2	2	0	0	4	4	0	4
Swell Height Map See all maps
Wave Height (m) & direction (?)	WSW	SW	SW	W	WSW	WSW	W	WSW	SW	SW	SW	SW	SW	SW	SW	SSW	SSW	SSW	SW	SW	SW
Period(s) (?)	14	14	12	12	12	12	12	10	14	13	13	14	13	13	13	13	12	14	13	13	17
Wave Graph (?)
kJ (?)	8656	2986	1739	1010	1569	1496	2043	4349	15089	9467	7524	5574	4332	3818	3267	2626	3986	5810	4169	3385	6014
Wind (km/h)	W	WNW	N	NNW	WNW	NW	WNW	WSW	WSW	WSW	W	W	W	W	WSW	SSW	SSW	SW	WSW	WSW	SW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- off	off	off	cross- off	cross- off	cross- off	cross	cross- on	cross- on	cross	cross	cross	cross	cross	on	cross- on	cross- on	cross	cross- on	cross- on
High Tide / height (m)	12:11PM 0.72				12:35PM 0.76	1:52AM 0.32		12:56PM 0.77	1:28AM 0.41		1:14PM 0.76	1:31AM 0.51		1:32PM 0.73	1:44AM 0.61		1:47PM 0.69	2:01AM 0.70		2:00PM 0.64	2:20AM 0.77
Low Tide / height (m)			8:49PM 0.06			8:21PM 0.10	5:44AM 0.23		8:00PM 0.12	6:29AM 0.16		7:50PM 0.11	7:05AM 0.11		7:49PM 0.09	7:37AM 0.08		7:53PM 0.07	8:07AM 0.08		8:00PM 0.04

	Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
Sunrise	6:20	-	-	6:18	-	-	6:16	-	-	6:16	-	-	6:13	-	-	6:13	-	-	6:11	-	-
Sunset	-	6:14	-	-	6:15	-	-	6:15	-	-	6:15	-	-	6:16	-	-	6:17	-	-	6:19	-

Rain (mm)	-	-	-	-	-	-	-	3	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	14	15	12	19	19	13	15	11	11	12	13	13	14	14	14	12	12	11	12	13	13
Feels °C (?)	9	10	9	13	14	11	9	3	2	6	8	8	10	9	9	5	6	6	7	9	10

Map Icons:
Break
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 SA - Kangaroo Island

Wind Update Cross-off wind 43 km from Hanson Bay has become light (light winds from the SSW at ParndanaCfsAws). Waves should be turning clean at Hanson Bay. A 4.3m groundswell from the WSW is too big for here
44 minutes ago Hanson Bay

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43 km away, 44 min ago

7 km/h

SSW

0.0

15.3

Air / Water (°C)

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Hanson 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 Hanson Bay Surf forecast

The above surf forecast table for Hanson Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Hanson Bay can be found by selecting the local surf guide option on the grey menu. Our Hanson 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 (Hanson 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 Hanson 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.

Are you planning a holiday in Kangaroo Island? If you are looking for accommodation near Hanson Bay, camping, hotels and holiday cottages in Kangaroo Island, consider staying in Kingscote which is 81 km (50 miles) away.