Nine Mile surf break

Nine Mile surfForecast / West Coast South Island / New Zealand

information circle12 Day Weather and Surf, issued 6 am Monday 12 Jan 2026 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
18.6° C
(Which is 1.7°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 Tuesday (Jan 13) at 7AM. The primary swell is predicted to be 1.7m and 10s period with a secondary swell of 0.2m and 15s. 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 2.1m 11s and forecast to arrive on Tuesday (Jan 13) at 1AM. 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 2s period and expected on Sunday (Jan 18) at 7AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Tue 13th Jan)5.5ft (1.7m) 10s
Best Surf 7AM (Tue 13th Jan)5.5ft (1.7m) 10s
Most Powerful 1AM (Tue 13th Jan)7ft (2.1m) 11s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 3mm), mostly falling on Mon morning. Very mild (max 17°C on Wed afternoon, min 11°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Sat morning, min 14°C on Thu night). Wind will be generally light.

Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
1
3
2
0
1
2
0
2
1
0
2
2
0
2
1
0
1
1
0
1
Swell
Height Map
Wave Height (m) & direction (?)
2.5
WNW
1.8
WSW
2.1
W
1.6
W
1.4
W
1.3
W
1
W
0.9
W
0.9
WSW
0.8
WSW
0.7
WSW
0.9
WSW
0.6
WSW
0.9
WSW
0.8
WSW
0.6
WSW
0.6
WSW
0.5
WSW
0.4
WSW
0.4
WSW
0.4
WSW
Period(s) (?)1112111010910109101114141313121211111112
Wave
Graph
(?)Metric surfscale
Energy kJ (?)154192899953038629317915414713112529714530718611110670473956
Wind
(km/h)
20
SW
20
SW
10
SSW
5
SW
15
WSW
10
SW
0
SW
15
WSW
10
SSE
5
SW
15
WSW
5
ESE
5
N
10
WNW
5
SE
5
ESE
10
WSW
15
ESE
10
E
10
W
10
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
glasscross-
on
cross-
off
cross-
on
cross-
on
offglassoncross-
off
glasscross-
on
offoffonoff
High Tide
/ height (m)
6:49PM
2.10
7:23AM
2.10
7:54PM
2.08
8:24AM
2.13
8:54PM
2.13
9:20AM
2.21
9:48PM
2.22
10:09AM
2.32
10:34PM
2.32
10:52AM
2.43
11:16PM
2.43
11:32AM
2.54
11:54PM
2.52
Low Tide
/ height (m)
12:35PM
0.82
1:04AM
0.83
1:38PM
0.86
2:06AM
0.85
2:40PM
0.82
3:05AM
0.81
3:35PM
0.74
3:57AM
0.73
4:23PM
0.63
4:42AM
0.62
5:06PM
0.51
5:23AM
0.51
5:46PM
0.39
Monday
12
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Sunrise6:11--6:13--6:13--6:15--6:16--6:16--6:18--
Sunset-9:13--9:12--9:12--9:12--9:10--9:10--9:09-
rain showers
clear
part cloud
part cloud
part cloud
light rain
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
Rain (mm)
1----2---------------
Temp. °C161614151614161715181815191816222118201917
Feels °C (?)111111121313131414161615181717212216171817
  • 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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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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