Dunedin - St Clair Surf Forecast

/ Otago (35 surf breaks) /

New Zealand (466 surf breaks) / Lat Long: (45.91° S 170.50° E)

Surf Forecasts:

Dunedin - St Clair surfForecast / Otago / New Zealand

12 Day Weather and Surf, issued 12 am Tuesday 21 Oct 2025 NZDT

Forecast update in hr min s Forecast update imminent

Dunedin - St Clair surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Dunedin - St Clair sea temperature is 11.9° C
(Which is 2.4°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Dunedin - St Clair this week:

The surf forecast for Dunedin - St Clair over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Oct 21) at 7PM. The primary swell is predicted to be 3.5m and 15s period with a secondary swell of 2.2m and 15s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Dunedin - St Clair in the next 12 days are 3.5m 15s and forecast to arrive on Tuesday (Oct 21) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 9s period and expected on Monday (Oct 27) at 4PM.

Wave Type	Time (NZDT) & Date	Wave Height & Period
Next good surf (1 star+)	7PM (Tue 21st Oct)	11ft (3.5m) 15s
Best Surf	7PM (Tue 21st Oct)	11ft (3.5m) 15s
Most Powerful	7PM (Tue 21st Oct)	11ft (3.5m) 15s

Table - best surf conditions forecast for Dunedin - St Clair over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 7mm), mostly falling on Wed night. Warm (max 20°C on Thu morning, min 8°C on Tue afternoon). Winds increasing (light winds from the NW on Mon night, near gales from the W by Thu afternoon).										Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Thu night. Very mild (max 15°C on Sat morning, min 6°C on Thu night). Winds decreasing (strong winds from the W on Thu night, calm by Sun morning).
		Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Mon 27
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	1	1	1	2	2	!	2	2	0	!	0	3	2	2	0	!	3	3	2	0	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SSW	SSW	SSW	SSW	SW	SSW	S	S	SSW	SSW	S	S	S	SSW	SW	SSW	SSW	S	S	S
Period(s) (?)	15	16	16	15	16	15	14	13	10	13	11	10	10	9	12	13	14	13	11	10	9
Wave Graph (?)
kJ (?)	71	337	978	1271	1428	4413	994	434	102	1622	972	584	384	169	400	3409	691	563	238	94	57
Wind (km/h)	N	W	WSW	W	W	WSW	NE	N	W	W	W	W	NNW	WNW	WSW	W	W	NE	NE	NNE	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross- off	off	cross- off	cross- off	cross- off	cross- off	off	cross- off	cross	cross- off	cross- off	cross- off	cross- off	cross- off	glass
High Tide / height (m)		4:21AM 1.69	4:41PM 1.65		5:02AM 1.67	5:21PM 1.60		5:43AM 1.63	6:03PM 1.55		6:25AM 1.59	6:46PM 1.50		7:10AM 1.55		7:33PM 1.45	7:58AM 1.52		8:23PM 1.41	8:49AM 1.50
Low Tide / height (m)	10:18PM 0.23	10:40AM 0.24		10:57PM 0.24	11:20AM 0.26		11:34PM 0.27	11:58AM 0.29		12:12AM 0.31	12:38PM 0.33		12:51AM 0.35		1:18PM 0.37	1:31AM 0.38		2:00PM 0.41	2:13AM 0.41		2:45PM 0.43

		Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sunday 26			Mon 27
Sunrise	-	6:33	-	-	6:31	-	-	6:31	-	-	6:28	-	-	6:26	-	-	6:24	-	-	6:24	-
Sunset	-	-	8:10	-	-	8:13	-	-	8:14	-	-	8:15	-	-	8:16	-	-	8:19	-	-	8:20

Rain (mm)	1	1	1	-	-	-	4	-	-	2	-	1	-	-	-	-	1	1	-	1	-
Temp. °C	11	13	10	10	16	16	12	20	16	9	12	14	8	15	15	10	12	14	11	15	17
Feels °C (?)	8	8	0	3	8	8	9	13	6	-1	5	10	4	9	8	5	8	11	6	10	16

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 Otago

Wind Update Continuing clean conditions at Dunedin - St Clair (calm at DunedinAeroAws 24 km from Dunedin - St Clair). 1.3m 16s long period groundswell from the S with a 0.3m 8s swell from the SSW. 2 swells combining to make bigger set waves.
1 hour 6 minutes ago Dunedin - St Clair

Expand

View all

24 km away, 1 h 6 min ago

4 km/h

SSE

0.0

11.9

Air / Water (°C)

Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

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

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

Dunedin - St Clair is 5 km (3 miles) from Dunedin. If you plan a holiday in Otago, look for hotels and other accommodation in Dunedin. Dunedin has rooms for a wide range of budgets as well as car hire and transport links.