Aoraki/Mount Cook National Park in september: average Weather, Temperature and Climate
Weather in Aoraki/Mount Cook National Park in september 2025
The weather in Aoraki/Mount Cook National Park in september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
very bad weather 2395.4cm
Weather at 6am
31°F
Snow showers
28% of time
28%
18%
14%
Weather at 12pm
41°F
Clear/Sunny
35% of time
23%
22%
10%
Weather at 6pm
36°F
Snow showers
31% of time
24%
23%
9%
Weather at 3am
27°F
51%
25%
12%
6%
Evolution of daily average temperature and precipitation in Aoraki/Mount Cook National Park in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Aoraki/Mount Cook National Park in september.
The climate of Aoraki/Mount Cook National Park in september is very bad
the weather in Aoraki/Mount Cook National Park in september is wet (with 14.8in of rainfall over 11 days). The situation is deteriorating compared to the previous month since in august there is an average of 13.1in of precipitation over 11 days.
The climate is rather more than very fresh in that area this month. Plan a sweater! The thermometer averaged maximum of 41°F. On average, the recorded minimum temperature is 31°F. Thus, the mean temperature average on this month of september in Aoraki/Mount Cook National Park is 36°F. These temperatures are far removed from those records observed in Aoraki/Mount Cook National Park in the month of september with a maximum record of 56°F in 2013 and a minimum record of 5°F in 2010. You can expect to have about 20 days with temperatures below 32°F, or 67% of time.
In september in Aoraki/Mount Cook National Park, the days on average last 11:46. The sun rises at 07:42 and sunset is at 19:28.
September: another location in New Zealand?
If you want to go to New Zealand in september, there are destinations with better weather than Aoraki/Mount Cook National Park:
In september, Cape Reinga, Omamari, Dargaville, Kaitaia, Kerikeri and Ruakaka have good weather.
Finally, Auckland, Christchurch, Rotorua, Wellington, Tauranga and Abel Tasman National Park have a tolerable climate, but better than Aoraki/Mount Cook National Park.
Seasonal average climate and temperature of Aoraki/Mount Cook National Park in september
Check below seasonal norms These datas are set from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 36°F | ||||
| Highest temperature | 41°F | ||||
| Lowest temperature | 31°F | ||||
| Highest record temperature | 56°F (2013) | ||||
| Lowest record temperature | 5°F (2010) | ||||
| Number of days at -32°F | 20 day(s) (67%) | ||||
| Wind | |||||
| Wind speed | 15km/h | ||||
| Wind temperature | 25°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 14.8in | ||||
| Number of days with rainfall | 11 day(s) (38%) | ||||
| Record daily rainfall | 7.1in (2020) | ||||
| Snowfall | 2395.4cm | ||||
| Other climate data | |||||
| Humidity | 91% | ||||
| Visibility | 7.54km | ||||
| Cloud cover | 47% | ||||
| UV index | 2 | ||||
| Daily sunshine hours | 10 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 07:42 | ||||
| Time of sunset | 19:28 | ||||
| Length of day | 11:46 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last september?
Here is the day by day recorded weather in Aoraki/Mount Cook National Park in september 2024:
36°F to 38°F
38°F to 41°F
29°F to 40°F
22°F to 36°F
29°F to 36°F
34°F to 40°F
38°F to 43°F
27°F to 34°F
34°F to 36°F
25°F to 29°F
14°F to 29°F
25°F to 32°F
29°F to 32°F
29°F to 36°F
22°F to 34°F
22°F to 32°F
16°F to 27°F
18°F to 34°F
34°F to 36°F
25°F to 34°F
20°F to 34°F
34°F to 36°F
32°F to 36°F
27°F to 36°F
13°F to 27°F
25°F to 34°F
14°F to 31°F
16°F to 34°F
20°F to 36°F
27°F to 40°F
Map: other cities in New Zealand in september
Cities near Aoraki/Mount Cook National Park:
| Franz Josef / Waiau in september | very bad weather |
| Lake Tekapo in september | very bad weather |
| Lake Ohau in september | very bad weather |
| McKenzie Beach in september | very bad weather |
| Haast in september | bad weather |
| Hokitika in september | bad weather |
| Timaru in september | very bad weather |
| Ashburton in september | tolerable weather |
| Saint Bathans in september | very bad weather |
| Wanaka in september | very bad weather |
| Roys Peak in september | very bad weather |
| Rob Roy Glacier in september | very bad weather |
Click over cities on the map for information about the weather in september.
Aoraki/Mount Cook National Park
perfect weather
good
tolerable
bad
very bad
Weather data for Aoraki/Mount Cook National Park in september:
Weather data for Aoraki/Mount Cook National Park for september are derived from an average of the weather forecast since 2009 in Aoraki/Mount Cook National Park. There is a margin of error and these forecasts are to be considered as general information only. The weather in Aoraki/Mount Cook National Park can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Aoraki/Mount Cook National Park.