Surf Forecasts:
Nine Mile surf forecast from 10 Aug 2026:
- Best quality surf: Saturday 15 Aug, 9AM (local time) - 8ft (2.4m), 18s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 15 Aug, 12PM (local time) - 8ft (2.5m), 18s period, W swell with 4,632 kJ wave energy.
- Next surfable swell (1★+): Tuesday 11 Aug, 12AM (local time) - 3.5ft (1.0m), 13s period with W swell.
Best Forecast Surf Conditions for Nine Mile this week:
The surf forecast for Nine Mile over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 12AM. The primary swell is predicted to be 1.0m and 13s period with a secondary swell of 0.8m and 6s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Nine Mile in the next 16 days are 2.5m 18s and forecast to arrive on Saturday (Aug 15) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Thursday (Aug 13) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 11th Aug) | 3.5ft (1.0m) 13s |
| Best Surf | 9AM (Sat 15th Aug) | 8ft (2.4m) 18s |
| Most Powerful | 12PM (Sat 15th Aug) | 8ft (2.5m) 18s |
Table - best surf conditions forecast for Nine Mile over the next 16 days.
Short Range ForecastModerate rain (total 12mm), heaviest on Wed afternoon. Very mild (max 13°C on Tue afternoon, min 8°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 15°C on Sat afternoon, min 6°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | WSW 14 | W 13 | WSW 13 | W 18 | WSW 17 | W 16 | NNW 11 | NW 10 | WNW 11 | WNW 10 | WSW 16 | W 18 | W 19 | W 17 | WSW 18 | W 18 | WSW 16 | WSW 16 | WSW 15 | WSW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 443 | 366 | 222 | 243 | 315 | 181 | 1326 | 1175 | 661 | 436 | 357 | 311 | 470 | 1537 | 3403 | 4580 | 3169 | 1493 | 1063 | 639 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | off | cross-off | cross | off | off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-on | glassy | cross-off | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 8:46PM2.64m | 9:21AM2.64m | 9:42PM2.81m | 10:13AM2.77m | 10:32PM2.95m | 11:00AM2.85m | 11:18PM3.02m | 11:44AM2.88m | 00:02AM3.01m | 12:26PM2.85m | 00:44AM2.93m | 1:07PM2.76m | 1:25AM2.78m | |||||||
Low Tide | 3:04AM0.24m | 3:28PM0.28m | 3:59AM0.08m | 4:19PM0.14m | 4:49AM-0.04m | 5:06PM0.04m | 5:34AM-0.09m | 5:51PM0.01m | 6:18AM-0.07m | 6:34PM0.04m | 6:59AM0.03m | 7:16PM0.15m | ||||||||
 |  |  | |  |  |  |  | | |  |  | | | | | | | | | |
 | — | — | 7:33 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — |
 | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — |
mm | 1 | — | — | — | — | — | 3 | 6 | 2 | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 10 | 12 | 13 | 10 | 11 | 11 | 12 | 13 | 13 | 11 | 14 | 14 | 11 | 13 | 15 | 10 | 10 | 12 | 6 |
Feels °C | 10 | 8 | 10 | 10 | 8 | 8 | 7 | 8 | 12 | 11 | 9 | 12 | 11 | 10 | 11 | 12 | 5 | 5 | 6 | 0 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 13 | WSW 13 | WSW 13 | NNW 7 | NNW 8 | NNW 11 | NW 10 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 8 | W 17 | WSW 18 | W 18 | WSW 16 | WSW 16 | WSW 15 | WSW 15 |
| kJ | 97 | 366 | 222 | 170 | 89 | 130 | 1326 | 1175 | 661 | 436 | 325 | 169 | 119 | 1537 | 3403 | 4580 | 3169 | 1493 | 1063 | 639 |
Swell 2 Height (m) Direction Period (s) | WSW 14 | W 6 | N 8 | W 18 | WSW 17 | W 16 | WSW 15 | WSW 14 | N 8 | N 8 | WSW 16 | WSW 14 | WSW 16 | W 7 | W 9 | — | — | W 10 | W 10 | W 10 |
| kJ | 443 | 47 | 34 | 243 | 315 | 181 | 75 | 69 | 219 | 111 | 357 | 215 | 348 | 150 | 313 | — | — | 273 | 284 | 240 |
Swell 3 Height (m) Direction Period (s) | NNW 9 | NNW 8 | W 19 | N 8 | W 6 | WNW 13 | WSW 19 | WSW 18 | WSW 15 | WSW 17 | N 7 | W 18 | W 19 | — | — | — | — | — | — | — |
| kJ | 90 | 57 | 190 | 33 | 3 | 118 | 37 | 106 | 184 | 237 | 46 | 311 | 470 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 36 | 0 | 0 | 12 | 0 | 0 | 0 | 116 | 0 | 0 | 0 | 0 | 73 | 0 | 0 | 5 | 4 | 5 | 4 | 0 |
Best forecast wave conditions in West Coast South Island | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
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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 16 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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