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Surf Forecasts:

Nine Mile surf break

Nine Mile surfForecast / West Coast South Island / New Zealand

information circle12 Day Weather and Surf, issued 5 am Sunday 14 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
13.0° C
 (Which is slightly warmer than usual)

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 14) at 9PM. The primary swell is predicted to be 2.1m and 13s period with a secondary swell of 2.1m and 10s. 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 4.5m 16s and forecast to arrive on Thursday (Sep 18) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Sep 20) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 14th Sep)7ft (2.1m) 13s
Best Surf 6AM (Sun 21st Sep)13ft (4.0m) 11s
Most Powerful 6PM (Thu 18th Sep)15ft (4.5m) 16s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 19mm), heaviest on Mon night. Very mild (max 14°C on Mon night, min 10°C on Sun morning). Mainly fresh winds.

Days 3-6 Weather Summary Heavy rain (total 49mm), heaviest during Wed afternoon. Very mild (max 14°C on Wed morning, min 7°C on Fri night). Winds decreasing (strong winds from the NW on Wed afternoon, calm by Fri afternoon).

Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
3
4
3
1
0
2
3
0
1
0
2
0
0
0
3
3
4
3
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
4.5
W
3.5
W
2.5
W
2.2
W
2
W
1.9
W
2.4
W
2.3
W
2
W
1.3
WSW
3
WNW
3.5
WNW
4
WNW
4
W
4
W
3.5
W
2.5
W
2.1
W
1.5
W
1.2
W
3.5
NW
Period(s) (?)13121313138913131491111111313131212129
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6381395622531667134942483717831305694171129103774422362113612227212276813961693
Wind
(km/h)
30
WSW
10
WSW
5
SW
10
WSW
20
W
20
W
15
WSW
10
WNW
20
NW
25
NNW
40
NNW
15
WNW
30
W
35
WSW
30
SW
10
SW
5
W
5
ENE
10
NE
25
N
35
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		onglasscross-
on		onononcross-
on		cross-
on		crosscross-
on		cross-
on		ononcross-
on		cross-
on		onoffcross-
off		cross-
off		cross-
off
High Tide
/ height (m)
3:40PM
2.42
4:22AM
2.29
4:56PM
2.30
5:46AM
2.21
6:20PM
2.28
7:06AM
2.24
7:33PM
2.37
8:11AM
2.34
8:31PM
2.50
9:01AM
2.47
9:18PM
2.62
9:43AM
2.57
9:58PM
2.71
Low Tide
/ height (m)
9:25AM
0.53
10:02PM
0.54
10:36AM
0.70
11:21PM
0.65
11:56AM
0.76
12:42AM
0.64
1:13PM
0.70
1:52AM
0.54
2:16PM
0.58
2:47AM
0.41
3:06PM
0.44
3:32AM
0.29
3:48PM
0.32
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunrise6:39--6:37--6:35--6:33--6:31--6:30--6:28--
Sunset-6:22--6:22--6:23--6:24--6:25--6:27--6:29-
light rain
part cloud
rain showers
rain showers
rain showers
light rain
rain showers
rain showers
rain showers
light rain
heavy rain
heavy rain
thunderstorm
thunderstorm
rain showers
light rain
part cloud
part cloud
cloud
rain showers
rain showers
Rain (mm)
1-2225223312184651---144
Temp. °C11111011121414141414141311101010119111212
Feels °C (?)67898912131010710522797776
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for West Coast South Island

  1. weather stationWind Update Cross-shore wind has turned cross-on at Cobden Beach - The Channel (moderate winds from the WSW at HokitikaAeroAws 35 km from Cobden Beach - The Channel). A 4.0m groundswell from the W is too big for here

    57 minutes ago Cobden Beach - The Channel
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48 km away, 57 min ago

20 km/h
WSW
0.0
13.0
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.

View detailed surf forecast for Nine Mile at:
surf-forecast.com

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.

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