Denali National Park in september: average Weather, Temperature and Climate
Weather in Denali National Park in september 2025
The weather in Denali National Park in september comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
very bad weather 34.2cm
Weather at 6am
40°F
Clear/Sunny
27% of time
25%
19%
12%
Weather at 12pm
43°F
Clear/Sunny
31% of time
27%
21%
12%
Weather at 6pm
41°F
Clear/Sunny
32% of time
24%
22%
16%
Weather at 3am
40°F
31%
25%
19%
10%
Evolution of daily average temperature and precipitation in Denali National Park in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Denali National Park in september.
The climate of Denali National Park in september is very bad
In september in Denali National Park, the climate is wet (with 4.8in of precipitation over 6 days). It should be noted an improvement from the previous month since in august it receives an average of 4.8in of precipitation over 8 days.
The climate is rather cold around this city september. Plan a sweater! The high seasonal norm is 45°F. In the morning the temperature drops to 38°F. Thus, the mean temperature average on this month of september in Denali National Park is 41°F. These temperatures are far removed from those records observed in Denali National Park in september with a maximum record of 63°F in 2009 and a minimum record of 18°F in 2010. You need to prepare to have about 7 days with temperatures down below 32°F, or 23% of the month.
Day length in Denali National Park in september is 12:58. Sunrise is at 06:30 and sunset is at 19:28.
September: another location in Alaska?
If you want to go to Alaska in september, there are destinations with better weather than Denali National Park:
In september, Anchorage, Dillingham, Ketchikan, Katmai National Park, Kodiak and Sitka have a tolerable climate, but better than Denali National Park.
Seasonal average climate and temperature of Denali National Park in september
Check below seasonal norms These datas are compiled from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 41°F | ||||
| Highest temperature | 45°F | ||||
| Lowest temperature | 38°F | ||||
| Highest record temperature | 63°F (2009) | ||||
| Lowest record temperature | 18°F (2010) | ||||
| Number of days at +65°F | 0 day(s) (0%) | ||||
| Number of days at -32°F | 7 day(s) (23%) | ||||
| Wind | |||||
| Wind speed | 11km/h | ||||
| Wind temperature | 34°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.8in | ||||
| Number of days with rainfall | 6 day(s) (21%) | ||||
| Record daily rainfall | 2.6in (2016) | ||||
| Snowfall | 34.2cm | ||||
| Other climate data | |||||
| Humidity | 88% | ||||
| Visibility | 8.63km | ||||
| Cloud cover | 44% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:30 | ||||
| Time of sunset | 19:28 | ||||
| Length of day | 12:58 | ||||
| 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 Denali National Park in september 2024:
41°F to 47°F
41°F to 49°F
41°F to 52°F
41°F to 49°F
45°F to 54°F
45°F to 49°F
41°F to 47°F
41°F to 47°F
45°F to 47°F
40°F to 45°F
41°F to 43°F
41°F to 49°F
41°F to 47°F
38°F to 41°F
34°F to 41°F
34°F to 41°F
36°F to 41°F
36°F to 40°F
36°F to 41°F
31°F to 38°F
27°F to 38°F
34°F to 41°F
36°F to 43°F
36°F to 40°F
32°F to 40°F
36°F to 45°F
36°F to 43°F
36°F to 45°F
29°F to 41°F
29°F to 43°F
Map: other cities in Alaska in september
Cities near Denali National Park:
| Healy in september | very bad weather |
| Anchorage in september | tolerable weather |
| Tanana in september | very bad weather |
| Fairbanks in september | very bad weather |
| Kenai in september | bad weather |
| Valdez in september | very bad weather |
| Lake Clark National Park in september | very bad weather |
| Anchor Point in september | bad weather |
| Cordova in september | very bad weather |
| Tok in september | very bad weather |
| Wrangell-St. Elias National Park in september | very bad weather |
| Gates of the Arctic National Park in september | very bad weather |
Click over cities on the map for information about the weather in september.
Denali National Park
perfect weather
good
tolerable
bad
very bad
Weather data for Denali National Park in september:
Weather data for Denali National Park for september are derived from an average of the weather forecast since 2009 in Denali National Park. There is a margin of error and these forecasts are to be considered as general information only. The weather in Denali 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 Denali National Park.