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Weather in Denali National Park, Alaska for September 2025

Your guide to Denali National Park weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Denali National Park is slightly cooler than the historical average by -1.5 °F.

  • The forecast for the next days in Denali National Park predicts a temperature of 7.4 °F, which is cooler than the historical average.

  • In general, the average temperature in Denali National Park at the beginning of September is 14.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 6.1 °F by the end of September.

    • Rain 🌧️

  • The climate of Denali National Park in September is notably wet, with an average of 14 rainy days, and a total of 79.8 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
16
Dry days
Average rainy days
14
Rainy days
Average snowy days
0
Snow days
Average temperatures
10°/4°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Denali National Park Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
14°
2
Partly cloudy
15°
3
Overcast
14°
4
Cloudy
13°
5
Overcast
14°
6
Moderate or heavy rain shower
16°
7
Patchy rain possible
14°
8
Heavy rain at times
12°
9
Patchy rain possible
13°
10
Moderate or heavy rain shower
11°
11
Cloudy
10°
12
Patchy rain possible
8°
13
Patchy rain possible
7°
14
Patchy rain possible
8°
15
Mist
5°
16
Partly cloudy
12°
17
Overcast
8°
18
Partly cloudy
11°
19
Patchy rain possible
10°
20
Patchy rain possible
6°
21
Patchy rain possible
8°
22
Patchy rain possible
8°
23
Patchy rain possible
8°
24
Partly cloudy
7°
25
Partly cloudy
6°
26
Partly cloudy
6°
27
Partly cloudy
5°
28
Light freezing rain
3°
29
Partly cloudy
8°
30
Partly cloudy
8°

Temperatures trend during September in Denali National Park

See the weather trend as well as the moving average line

September weather in Denali National Park day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
Sept. 1 Partly cloudy
Partly cloudy
 14° /6° 1.3 mm 0 cm
Sept. 2 Partly cloudy
Partly cloudy
 15° /6° 1.5 mm 0 cm
Sept. 3 Overcast
Overcast
 14° /7° 4.8 mm 0 cm
Sept. 4 Cloudy
Cloudy
 13° /7° 0.7 mm 0 cm
Sept. 5 Overcast
Overcast
 14° /6° 0.4 mm 0 cm
Sept. 6 Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /6° 3.6 mm 0 cm
Sept. 7 Patchy rain possible
Patchy rain possible
 14° /8° 1.2 mm 0 cm
Sept. 8 Heavy rain at times
Heavy rain at times
 12° /8° 3.1 mm 0 cm
Sept. 9 Patchy rain possible
Patchy rain possible
 13° /6° 0.2 mm 0 cm
Sept. 10 Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /7° 7.8 mm 0 cm
Sept. 11 Cloudy
Cloudy
 10° /3° 0.4 mm 0 cm
Sept. 12 Patchy rain possible
Patchy rain possible
 8° /2° 1.3 mm 0 cm
Sept. 13 Patchy rain possible
Patchy rain possible
 7° /3° 1.7 mm 0.3 cm
Sept. 14 Patchy rain possible
Patchy rain possible
 8° /2° 0.2 mm 0 cm
Sept. 15 Mist
Mist
 5° /3° 0.1 mm 0 cm
Sept. 16 Partly cloudy
Partly cloudy
 12° /5° 0 mm 0 cm
Sept. 17 Overcast
Overcast
 8° /4° 0 mm 0 cm
Sept. 18 Partly cloudy
Partly cloudy
 11° /4° 0 mm 0 cm
Sept. 19 Patchy rain possible
Patchy rain possible
 10° /5° 0.1 mm 0 cm
Sept. 20 Patchy rain possible
Patchy rain possible
 6° /5° 2 mm 0 cm
Sept. 21 Patchy rain possible
Patchy rain possible
 8° /5° 0.4 mm 0 cm
Sept. 22 Patchy rain possible
Patchy rain possible
 8° /2° 0.1 mm 0 cm
Sept. 23 Patchy rain possible
Patchy rain possible
 8° /2° 0.1 mm 0 cm
Sept. 24 Partly cloudy
Partly cloudy
 7° /3° 0 mm 0 cm
Sept. 25 Partly cloudy
Partly cloudy
 6° /2° 0 mm 0 cm
Sept. 26 Partly cloudy
Partly cloudy
 6° /2° 0 mm 0 cm
Sept. 27 Partly cloudy
Partly cloudy
 5° /0° 0.1 mm 0 cm
Sept. 28 Light freezing rain
Light freezing rain
 3° /0° 0 mm 0 cm
Sept. 29 Partly cloudy
Partly cloudy
 8° /-1° 0 mm 0 cm
Sept. 30 Partly cloudy
Partly cloudy
 8° /0° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Denali National Park in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Denali National Park forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Denali National Park in September - FAQ

What are the expected maximum and minimum temperatures in Denali National Park during September?
Prepare for cooler days with highs just around 10° and colder nights, dipping below 4°.
How much rainfall should be expected in Denali National Park during September?
Moderate rainfall is anticipated in Denali National Park during September, with a total of 79.8 mm spread over approximately 14 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Denali National Park during September?
The average wind speed in Denali National Park during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.

Denali National Park snow forecast September 2025

Track daily snowfall levels and discover Denali National Park’s snowy potential this September ❄️

September rainfall patterns in Denali National Park

Explore the daily rainfall trends and prepare for Denali National Parks September weather 💧

Quick links

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Location coordinates Where is Denali National Park?

Get accurate weather forecasts for Denali National Park, located at latitude 63.541 and longitude -151.724. Stay updated with localized weather information tailored for Denali National Park.

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