Tunkalilla Surf Forecast

/ SA – Adelaide (17 breaks) / South Australia (91 breaks) /

Australia (828 breaks) / Lat Long: (35.64° S 138.34° E)

Surf Forecasts:

Tunkalilla surfForecast / SA – Adelaide / Australia

12 Day Weather and Surf, issued 2 pm Thursday 18 Sep 2025 ACST

Forecast update in hr min s Forecast update imminent

Tunkalilla surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Tunkalilla sea temperature is 14.1° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Tunkalilla this week:

The surf forecast for Tunkalilla over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 18) at 6PM. The primary swell is predicted to be 1.2m and 12s period with a secondary swell of 0.2m and 18s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Tunkalilla in the next 12 days are 3.0m 16s and forecast to arrive on Monday (Sep 22) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 13s period and expected on Saturday (Sep 20) at 6AM.

Wave Type	Time (ACST) & Date	Wave Height & Period
Next good surf (1 star+)	6PM (Thu 18th Sep)	4ft (1.2m) 12s
Best Surf	12AM (Sat 20th Sep)	8ft (2.5m) 14s
Most Powerful	12PM (Mon 22nd Sep)	10ft (3.0m) 16s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Light rain (total 3mm), mostly falling on Fri afternoon. Warm (max 20°C on Thu afternoon, min 10°C on Fri night). Winds increasing (light winds from the WNW on Thu night, strong winds from the WNW by Fri afternoon).											Days 3-6 Weather Summary Mostly dry. Very mild (max 14°C on Sun afternoon, min 10°C on Tue night). Mainly fresh winds.
	Thu 18		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	2	2	0	0	!	!	!	!	2	1	0	0	0	0	!	1	3	3	3	4	!
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	S	S	SSW	SSW	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S	S
Period(s) (?)	11	12	12	12	14	14	13	13	13	13	13	15	15	14	13	13	13	17	16	15	17
Wave Graph (?)
kJ (?)	357	341	294	317	2776	2637	2215	1684	1359	1379	1189	3103	3922	2846	1866	1387	839	1624	1402	1654	3347
Wind (km/h)	NNW	WNW	WNW	WNW	WSW	WSW	WSW	W	W	WSW	SW	SSW	SSW	S	S	SW	WSW	WSW	SW	W	NW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	cross- off	cross- off	cross- off	cross	cross	cross	cross- off	cross- off	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross	cross	cross	cross- off	cross- off
High Tide / height (m)			4:45AM 0.90	3:19PM 1.25		4:21AM 1.03	3:47PM 1.33		4:24AM 1.19	4:13PM 1.37		4:35AM 1.35	4:36PM 1.38		4:50AM 1.48	4:59PM 1.36		5:07AM 1.59	5:20PM 1.31		5:25AM 1.66
Low Tide / height (m)		10:16PM 0.27	9:18AM 0.66		10:11PM 0.21	9:44AM 0.46		10:17PM 0.16	10:11AM 0.29		10:29PM 0.11	10:37AM 0.16		10:42PM 0.09	11:02AM 0.06		10:56PM 0.08	11:27AM 0.01		11:11PM 0.08	11:52AM 0.00

	Thu 18		Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23			Wednesday 24
Sunrise	-	-	6:11	-	-	6:09	-	-	6:09	-	-	6:07	-	-	6:05	-	-	6:03	-	-	6:03
Sunset	6:08	-	-	6:09	-	-	6:09	-	-	6:10	-	-	6:12	-	-	6:13	-	-	6:13	-	-

Rain (mm)	-	-	-	2	1	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	20	16	15	15	11	12	13	13	15	14	13	13	13	11	13	13	12	14	14	11	15
Feels °C (?)	15	13	7	7	5	6	8	8	11	9	9	6	6	5	10	9	10	11	11	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 - Adelaide

Wind Update The wind is still offshore at Tunkalilla (light winds from the N at Mount Terrible Radar 38 km from Tunkalilla). 1.6m 11s groundswell from the S to make surfable waves.
47 minutes ago Tunkalilla

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38 km away, 47 min ago

15 km/h

0.0

14.1

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 Tunkalilla 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 Tunkalilla Surf forecast

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