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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 6 am Thursday 20 Nov 2025 NZDT
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
15.2° C
 (Which is 1.1°C warmer than 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 Thursday (Nov 20) at 10PM. The primary swell is predicted to be 1.7m and 13s period with a secondary swell of 0.4m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Nine Mile in the next 12 days are 1.9m 13s and forecast to arrive on Thursday (Nov 20) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Nov 26) at 1PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+)10PM (Thu 20th Nov)5.5ft (1.7m) 13s
Best Surf10PM (Thu 20th Nov)5.5ft (1.7m) 13s
Most Powerful 1PM (Thu 20th Nov)6ft (1.9m) 13s

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 Some drizzle, heaviest during Sat afternoon. Very mild (max 17°C on Fri morning, min 12°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Tue morning, min 10°C on Sun night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
2
4
2
2
3
3
2
2
1
0
0
1
0
2
1
0
1
1
0
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
W
1.8
W
1.7
W
1.5
W
1.5
W
1.5
W
1.5
W
1.3
WSW
1.4
WSW
1.4
WSW
1
WSW
0.9
WSW
0.8
WSW
0.7
WSW
0.7
WSW
0.9
WSW
0.7
WSW
0.5
WSW
0.8
WNW
1.3
WNW
1.5
WNW
Period(s) (?)141313131314151414131312121212111111998
Wave
Graph
(?)Metric surfscale
Energy kJ (?)14621121100180679485598471478867935624018614514518012866110286315
Wind
(km/h)
10
WSW
10
WSW
10
SE
5
WSW
10
WNW
5
E
0
NNW
5
WNW
5
SW
10
WSW
20
WSW
10
SSW
10
SW
15
WSW
5
ESE
5
W
10
WSW
5
ESE
5
W
10
WSW
5
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
off		ononoffglasscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		offglasscross-
on		offglasscross-
on		glass
High Tide
/ height (m)
11:30AM
2.58
11:49PM
2.55
12:05PM
2.59
12:26AM
2.54
12:41PM
2.57
1:03AM
2.49
1:18PM
2.52
1:41AM
2.43
1:57PM
2.45
2:22AM
2.35
2:39PM
2.38
3:06AM
2.27
3:25PM
2.32
3:57AM
2.21
Low Tide
/ height (m)
5:42PM
0.37
5:58AM
0.41
6:18PM
0.38
6:34AM
0.44
6:55PM
0.41
7:11AM
0.49
7:33PM
0.47
7:49AM
0.56
8:14PM
0.53
8:30AM
0.62
8:57PM
0.59
9:15AM
0.68
9:46PM
0.63
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Sunrise6:00--5:58--5:58--5:56--5:56--5:56--5:56--
Sunset-8:40--8:42--8:43--8:44--8:45--8:46--8:47-
clear
clear
clear
clear
clear
part cloud
cloud
light rain
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
Rain (mm)
-------1-------------
Temp. °C161614171715161513141412141411171714171714
Feels °C (?)14141316161615151312109101110141413161514
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Latest Updates

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Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

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View detailed surf forecast for Nine Mile at:
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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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