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Weather in Alta for September 2025

Your guide to Alta weather in September - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Alta usually enjoys a light touch of snow in September.
    According to Alta snow forecast for September 2025, no snow is expected until the end of the month.

    • Temperatures

  • So far, September 2025 in Alta is slightly warmer than the historical average by 1.2 °C.

  • The forecast for the next days in Alta predicts a temperature of 9.5 °C, which is cooler than the historical average.

  • In general, the average temperature in Alta at the beginning of September is 14.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 10 °C by the end of September.

    • Rain 🌧️

  • Alta in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 82.8 mm.

Average dry days
10
Dry days
Average rainy days
18
Rainy days
Average snowy days
2
Snow days
Average temperatures
10°/6°
Temperatures
Average wind speed
25 km/h
Avg max wind
Average humidity
79 %
Avg humidity

Alta Weather September

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

Temperatures trend during September in Alta

See the weather trend as well as the moving average line

September weather in Alta day by day

Click on a date for more information
August October
Date Weather Temperatures Rain Snow More
1 Sept. Light drizzle
Light drizzle
 14° /9° 1.3 mm 0 cm
2 Sept. Light drizzle
Light drizzle
 16° /9° 1.7 mm 0 cm
3 Sept. Cloudy
Cloudy
 16° /9° 0.6 mm 0 cm
4 Sept. Light rain shower
Light rain shower
 16° /10° 5.1 mm 0 cm
5 Sept. Light drizzle
Light drizzle
 13° /7° 1.9 mm 0 cm
6 Sept. Light rain shower
Light rain shower
 13° /7° 2.5 mm 0 cm
7 Sept. Overcast
Overcast
 12° /7° 1 mm 0 cm
8 Sept. Partly cloudy
Partly cloudy
 15° /7° 0.2 mm 0 cm
9 Sept. Light drizzle
Light drizzle
 17° /11° 0.5 mm 0 cm
10 Sept. Light drizzle
Light drizzle
 16° /11° 0.1 mm 0 cm
11 Sept. Cloudy
Cloudy
 15° /9° 2.3 mm 0 cm
12 Sept. Mist
Mist
 14° /9° 0.1 mm 0 cm
13 Sept. Overcast
Overcast
 13° /7° 0 mm 0 cm
14 Sept. Mist
Mist
 11° /6° 0.8 mm 0 cm
15 Sept. Overcast
Overcast
 12° /4° 0 mm 0 cm
16 Sept. Moderate rain
Moderate rain
 13° /10° 10 mm 0 cm
17 Sept. Patchy rain possible
Patchy rain possible
 13° /10° 4.6 mm 0 cm
18 Sept. Moderate rain
Moderate rain
 9° /8° 5.1 mm 0 cm
19 Sept. Patchy rain possible
Patchy rain possible
 7° /7° 0.7 mm 0 cm
20 Sept. Patchy rain possible
Patchy rain possible
 8° /6° 1.5 mm 0 cm
21 Sept. Patchy rain possible
Patchy rain possible
 7° /5° 3.3 mm 0 cm
22 Sept. Patchy rain possible
Patchy rain possible
 6° /5° 2 mm 0 cm
23 Sept. Patchy rain possible
Patchy rain possible
 7° /4° 1.1 mm 0 cm
24 Sept. Patchy rain possible
Patchy rain possible
 8° /4° 0.6 mm 0 cm
25 Sept. Patchy rain possible
Patchy rain possible
 10° /8° 4 mm 0 cm
26 Sept. Partly cloudy
Partly cloudy
 12° /8° 0 mm 0 cm
27 Sept. Patchy rain possible
Patchy rain possible
 13° /8° 0.4 mm 0 cm
28 Sept. Patchy rain possible
Patchy rain possible
 10° /9° 0.3 mm 0 cm
29 Sept. Moderate rain
Moderate rain
 10° /5° 6.3 mm 0 cm
30 Sept. Patchy rain possible
Patchy rain possible
 7° /4° 2.4 mm 1.7 cm
Next
Important Notice
Our weather forecast for Alta 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 Alta forecast closer to your planned date for the most up-to-date weather information.
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Alta in September - FAQ

What are the expected maximum and minimum temperatures in Alta during September?
During September, expect a variety of temperatures with highs around 10° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Alta during September?
Moderate rainfall is anticipated in Alta during September, with a total of 82.8 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
Will it snow in Alta in September 2025?
Alta experiences an average snowfall of 2.095 cm during September, occurring over 2 days.
What are the typical wind conditions in Alta during September?
The average wind speed in Alta during September is 25 km/h, suggesting breezy to windy conditions, depending on your activities.

Alta snow forecast September 2025

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

September rainfall patterns in Alta

Explore the daily rainfall trends and prepare for Altas September weather 💧

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Location coordinates Where is Alta?

Get accurate weather forecasts for Alta, located at latitude 69.969 and longitude 23.272. Stay updated with localized weather information tailored for Alta.

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