Alta
September
Weather in Alta for September 2025
Your guide to Alta weather in September - trends and predictions
In general, the average temperature in Alta at the beginning of September is 13.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 6.6 °C by the end of September.
The climate of Alta in September is notably wet, with an average of 12 rainy days, and a total of 165.6 mm of precipitation.
Temperatures
Rain 🌧️
18
Dry days
12
Rainy days
0
Snow days
12°/4°
Temperatures
25 km/h
Avg max wind
80 %
Avg humidity
Alta Weather September
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  14° | 2 14° | 3  16° | 4  15° | 5 12° | 6 12° | 7  10° |
| 8 15° | 9 17° | 10 16° | 11 14° | 12  13° | 13 11° | 14 9° |
| 15 12° | 16  11° | 17 10° | 18 9° | 19  8° | 20 6° | 21 6° |
| 22 4° | 23  6° | 24 5° | 25 6° | 26 7° | 27 7° | 28 7° |
| 29 7° | 30 7° |
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Temperatures trend during September in Alta
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Sept. | Light drizzle | 14° /9° | 2 mm | 0 cm | |
| 2 Sept. | Light drizzle | 14° /9° | 2.4 mm | 0 cm | |
| 3 Sept. | Cloudy | 16° /9° | 0.1 mm | 0 cm | |
| 4 Sept. | Light rain shower | 15° /10° | 7.3 mm | 0 cm | |
| 5 Sept. | Light drizzle | 12° /5° | 1 mm | 0 cm | |
| 6 Sept. | Light rain shower | 12° /6° | 3.8 mm | 0 cm | |
| 7 Sept. | Overcast | 10° /6° | 1.5 mm | 0 cm | |
| 8 Sept. | Patchy light drizzle | 15° /6° | 0.4 mm | 0 cm | |
| 9 Sept. | Light drizzle | 17° /10° | 0.8 mm | 0 cm | |
| 10 Sept. | Light drizzle | 16° /11° | 0.2 mm | 0 cm | |
| 11 Sept. | Cloudy | 14° /9° | 3.5 mm | 0 cm | |
| 12 Sept. | Mist | 13° /7° | 0.2 mm | 0 cm | |
| 13 Sept. | Overcast | 11° /6° | 0 mm | 0 cm | |
| 14 Sept. | Mist | 9° /5° | 0 mm | 0 cm | |
| 15 Sept. | Overcast | 12° /4° | 0 mm | 0 cm | |
| 16 Sept. | Partly cloudy | 11° /5° | 0.1 mm | 0 cm | |
| 17 Sept. | Light rain shower | 10° /6° | 1 mm | 0 cm | |
| 18 Sept. | Light drizzle | 9° /3° | 3.6 mm | 0 cm | |
| 19 Sept. | Light snow showers | 8° /4° | 2.6 mm | 0 cm | |
| 20 Sept. | Patchy rain possible | 6° /2° | 4.3 mm | 0 cm | |
| 21 Sept. | Overcast | 6° /2° | 3.3 mm | 0 cm | |
| 22 Sept. | Light rain | 4° /2° | 7.2 mm | 0 cm | |
| 23 Sept. | Moderate rain | 6° /2° | 8.6 mm | 0 cm | |
| 24 Sept. | Patchy rain possible | 5° /3° | 4.2 mm | 0 cm | |
| 25 Sept. | Fog | 6° /3° | 4.8 mm | 0 cm | |
| 26 Sept. | Light drizzle | 7° /3° | 8.3 mm | 0 cm | |
| 27 Sept. | Patchy rain possible | 7° /4° | 0.4 mm | 0 cm | |
| 28 Sept. | Light drizzle | 7° /5° | 7 mm | 0 cm | |
| 29 Sept. | Light drizzle | 7° /4° | 1.9 mm | 0.3 cm | |
| 30 Sept. | Patchy rain possible | 7° /4° | 2.4 mm | 1.7 cm | |
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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.
Alta in September - FAQ
What are the expected maximum and minimum temperatures in Alta during September?
Prepare for cooler days with highs just around 12° and colder nights, dipping below 4°.
How much rainfall should be expected in Alta during September?
Significant rainfall exceeding 165.6 mm is expected in Alta during September, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Alta in September 2025?
Alta typically sees 4.2 cm of snowfall during September.
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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