Nine Mile Surf Forecast

/ West Coast South Island (21 surf breaks) /

New Zealand (466 surf breaks) / Lat Long: (42.34° S 171.26° E)

Surf Forecasts:

Nine Mile surfForecast / West Coast South Island / New Zealand

12 Day Weather and Surf, issued 5 pm Thursday 04 Sep 2025 NZST

Forecast update in hr min s Forecast update imminent

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

Today's Nine Mile sea temperature is 12.7° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Nine Mile this week:

The surf forecast for Nine Mile over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 07) at 9PM. The primary swell is predicted to be 3.0m and 13s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Nine Mile in the next 12 days are 4.0m 12s and forecast to arrive on Sunday (Sep 07) 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 0.3m 3s period and expected on Tuesday (Sep 09) at 3PM.

Wave Type	Time (NZST) & Date	Wave Height & Period
Next good surf (1 star+)	9PM (Sun 7th Sep)	10ft (3.0m) 13s
Best Surf	9PM (Sun 7th Sep)	10ft (3.0m) 13s
Most Powerful	12PM (Sun 7th Sep)	13ft (4.0m) 12s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 53mm), heaviest during Fri afternoon. Very mild (max 14°C on Thu night, min 8°C on Fri night). Winds increasing (light winds from the NNW on Thu afternoon, strong winds from the WSW by Sat night).											Days 3-6 Weather Summary Moderate rain (total 19mm), heaviest on Tue afternoon. Very mild (max 12°C on Mon afternoon, min 7°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the SW by Wed morning).
	Thu 04		Friday 05			Saturday 06			Sunday 07			Monday 08			Tuesday 09			Wednesday 10
	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	0	0	0	0	0	0	0	0	0	4	3	2	1	2	1	4	0	0	1	3
Swell Height Map See all maps
Wave Height (m) & direction (?)	W	W	NW	WNW	WSW	W	W	W	W	W	W	WSW	WSW	W	W	W	W	W	W	W	W
Period(s) (?)	14	14	8	9	13	13	13	14	11	13	13	13	13	12	12	9	11	10	9	10	10
Wave Graph (?)
Energy (?)	790	1174	1521	2032	2236	2940	3116	3543	4118	4764	2547	972	634	472	226	267	1474	1398	1578	1514	976
Wind (km/h)	NNW	NNW	NNW	W	W	SW	SW	WSW	SW	WSW	ESE	ENE	N	NNW	NNE	NE	NE	SW	WSW	SW	SE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- on	cross- on	on	on	cross- on	cross- on	on	cross- on	cross- on	glass	cross- off	cross	cross	cross- off	cross- off	cross- off	cross- on	cross- on	cross- on	glass
High Tide / height (m)		8:23PM 2.33	8:52AM 2.37		9:09PM 2.53	9:35AM 2.55		9:51PM 2.73	10:16AM 2.72		10:31PM 2.90	10:55AM 2.85		11:12PM 3.01	11:36AM 2.92		11:53PM 3.05		12:17PM 2.93	12:36AM 3.00
Low Tide / height (m)		2:39AM 0.56		2:58PM 0.54		3:23AM 0.34	3:40PM 0.34		4:05AM 0.14	4:21PM 0.16		4:46AM -0.02	5:01PM 0.03		5:26AM -0.11	5:42PM -0.04		6:07AM -0.12		6:25PM -0.04	6:50AM -0.04

	Thu 04		Friday 05			Saturday 06			Sunday 07			Monday 08			Tuesday 09			Wednesday 10
Sunrise	-	-	6:54	-	-	6:52	-	-	6:50	-	-	6:48	-	-	6:48	-	-	6:46	-	-	6:43
Sunset	6:12	-	-	6:13	-	-	6:14	-	-	6:15	-	-	6:15	-	-	6:16	-	-	6:17	-	-

Rain (mm)	2	12	6	10	11	2	2	6	2	-	-	-	-	-	2	9	6	2	2	4	-
Temp. °C	12	14	14	11	10	9	10	10	10	11	9	11	12	10	8	10	11	11	10	9	10
Feels °C (?)	11	8	8	6	5	3	2	3	2	4	6	7	8	7	4	8	10	4	3	3	9

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 West Coast South Island

Wind Update The cross-on wind has turned onshore at Cobden Beach - The Channel (light winds from the NNW at HokitikaAeroAws 35 km from Cobden Beach - The Channel). A 2.1m groundswell from the W is too big for here
1 hour 6 minutes ago Cobden Beach - The Channel

Expand

View all

48 km away, 1 h 6 min ago

19 km/h

NNW

0.0

12.7

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 Nine Mile 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 Nine Mile Surf forecast

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

Nine Mile is 177 km (110 miles) from the city of Christchurch. If you plan a holiday in West Coast South Island, look for hotels and other accommodation in Christchurch. Christchurch has rooms for a wide range of budgets as well as car hire and transport links.