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Weather in Denali, Alaska for September 2026

Your guide to Denali weather in September - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Denali during September is quite rare, with fewer than 2 snowy days on average.
    According to Denali snow forecast for September 2026, 1 snowy day is expected until the end of the month at Wednesday, September 30.

    • Temperatures

  • Until now, September 2026 in Denali has been nearly identical to the historical average, with a temperature of 9.7 °F (showing only a slight deviation of 0 °F).

  • In general, the average temperature in Denali at the beginning of September is 11.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 6.6 °F by the end of September.

    • Rain 🌧️

  • Denali in September brings notable rainfall, with an average of 16 rainy days and a total precipitation of 102.4 mm.

    • More

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

Average dry days
14
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
9°/4°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Denali Weather September

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

Temperatures trend during September in Denali

See the weather trend as well as the moving average line

September weather in Denali day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
Sept. 1 Overcast
Overcast
 10° /1° 0 mm 0 cm
Sept. 2 Overcast
Overcast
 9° /1° 0 mm 0 cm
Sept. 3 Moderate rain at times
Moderate rain at times
 8° /3° 2.7 mm 0 cm
Sept. 4 Heavy rain at times
Heavy rain at times
 11° /9° 12.8 mm 0 cm
Sept. 5 Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /9° 15.3 mm 0 cm
Sept. 6 Overcast
Overcast
 14° /7° 0 mm 0 cm
Sept. 7 Patchy rain possible
Patchy rain possible
 17° /9° 3.6 mm 0 cm
Sept. 8 Moderate or heavy rain shower
Moderate or heavy rain shower
 12° /8° 21.2 mm 0 cm
Sept. 9 Patchy rain possible
Patchy rain possible
 8° /6° 2.5 mm 0 cm
Sept. 10 Patchy rain possible
Patchy rain possible
 12° /6° 3.4 mm 0 cm
Sept. 11 Heavy rain at times
Heavy rain at times
 11° /7° 7.6 mm 0 cm
Sept. 12 Overcast
Overcast
 11° /6° 3.8 mm 0 cm
Sept. 13 Patchy rain possible
Patchy rain possible
 11° /5° 0.6 mm 0 cm
Sept. 14 Overcast
Overcast
 12° /3° 0 mm 0 cm
Sept. 15 Heavy rain at times
Heavy rain at times
 9° /5° 7.3 mm 0 cm
Sept. 16 Moderate rain at times
Moderate rain at times
 7° /5° 8.8 mm 0 cm
Sept. 17 Patchy rain possible
Patchy rain possible
 9° /5° 1.3 mm 0 cm
Sept. 18 Patchy rain possible
Patchy rain possible
 11° /5° 0.9 mm 0 cm
Sept. 19 Patchy rain possible
Patchy rain possible
 10° /5° 0.2 mm 0 cm
Sept. 20 Patchy rain possible
Patchy rain possible
 6° /3° 4.1 mm 0 cm
Sept. 21 Moderate rain at times
Moderate rain at times
 7° /2° 5.9 mm 0 cm
Sept. 22 Overcast
Overcast
 4° /0° 0 mm 0 cm
Sept. 23 Overcast
Overcast
 5° /1° 0 mm 0 cm
Sept. 24 Cloudy
Cloudy
 8° /0° 0 mm 0 cm
Sept. 25 Overcast
Overcast
 8° /0° 0 mm 0 cm
Sept. 26 Overcast
Overcast
 9° /2° 0 mm 0 cm
Sept. 27 Overcast
Overcast
 9° /2° 0 mm 0 cm
Sept. 28 Patchy rain possible
Patchy rain possible
 9° /1° 0.2 mm 0 cm
Sept. 29 Light freezing rain
Light freezing rain
 2° /0° 0.2 mm 0 cm
Sept. 30 Overcast
Overcast
 1° /-4° 0.2 mm 0.1 cm
Next
Important Notice
Our weather forecast for Denali 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 forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Denali in September - FAQ

What are the expected maximum and minimum temperatures in Denali during September?
Prepare for cooler days with highs just around 9° and colder nights, dipping below 4°.

How much rainfall should be expected in Denali during September?
Significant rainfall exceeding 102.4 mm is expected in Denali during September, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.

Will it snow in Denali in September 2026?
Denali typically sees 0 cm of snowfall during September.

What are the typical wind conditions in Denali during September?
The average wind speed in Denali during September is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

Denali snow forecast September 2026

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

September rainfall patterns in Denali

Explore the daily rainfall trends and prepare for Denalis September weather 💧
Typically, Denali has 16 rainy days in September with a total of 102.4 mm of rainfall.

Quick links

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Location coordinates Where is Denali?

Get accurate weather forecasts for Denali, located at latitude 63.069 and longitude -151.006. Stay updated with localized weather information tailored for Denali.

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