Colorado (Colorado Springs)
September
Weather in Colorado for September 2025
Your guide to Colorado weather in September - trends and predictions
In general, the average temperature in Colorado at the beginning of September is 27.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.6 °F by the end of September.
The climate of Colorado in September is notably wet, with an average of 12 rainy days, and a total of 50 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
12
Rainy days
0
Snow days
24°/9°
Temperatures
15 km/h
Avg max wind
42 %
Avg humidity
Colorado Weather September
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What’s the Weather Like in Colorado This September?
Discover the average temperatures and weather trends across Colorado’s cities this September.
Temperatures trend during September in Colorado
See the weather trend as well as the moving average line
September weather in Colorado day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 29° /11° | 0.7 mm | 7 | |
| Sept. 2 |  Heavy rain at times | 28° /11° | 0.4 mm | 6 | |
| Sept. 3 | Heavy rain at times | 26° /10° | 3.6 mm | 6 | |
| Sept. 4 |  Moderate or heavy rain shower | 27° /10° | 1.2 mm | 7 | |
| Sept. 5 | Sunny | 26° /8° | 2.6 mm | 6 | |
| Sept. 6 | Sunny | 29° /9° | 0 mm | 7 | |
| Sept. 7 | Sunny | 29° /11° | 0.1 mm | 7 | |
| Sept. 8 | Sunny | 28° /11° | 0.1 mm | 7 | |
| Sept. 9 | Sunny | 28° /11° | 0.4 mm | 6 | |
| Sept. 10 | Sunny | 23° /8° | 4.1 mm | 5 | |
| Sept. 11 | Sunny | 23° /8° | 4.5 mm | 6 | |
| Sept. 12 |  Patchy rain possible | 25° /8° | 0.1 mm | 6 | |
| Sept. 13 |  Partly cloudy | 25° /9° | 4.1 mm | 6 | |
| Sept. 14 | Moderate or heavy rain shower | 23° /9° | 7.3 mm | 6 | |
| Sept. 15 | Sunny | 23° /8° | 1.9 mm | 6 | |
| Sept. 16 | Patchy rain possible | 25° /8° | 0.2 mm | 6 | |
| Sept. 17 | Sunny | 24° /9° | 0 mm | 6 | |
| Sept. 18 | Sunny | 26° /8° | 0.8 mm | 7 | |
| Sept. 19 | Sunny | 25° /9° | 0 mm | 6 | |
| Sept. 20 | Patchy rain possible | 24° /8° | 0.4 mm | 6 | |
| Sept. 21 | Patchy rain possible | 20° /5° | 6.3 mm | 5 | |
| Sept. 22 | Sunny | 19° /4° | 7 mm | 5 | |
| Sept. 23 | Partly cloudy | 23° /4° | 1 mm | 6 | |
| Sept. 24 | Sunny | 22° /7° | 0 mm | 6 | |
| Sept. 25 | Sunny | 24° /6° | 0 mm | 7 | |
| Sept. 26 | Sunny | 26° /9° | 0 mm | 7 | |
| Sept. 27 | Partly cloudy | 24° /10° | 0.2 mm | 6 | |
| Sept. 28 |  Cloudy | 24° /10° | 0.3 mm | 6 | |
| Sept. 29 | Moderate rain at times | 24° /9° | 2.4 mm | 6 | |
| Sept. 30 | Patchy rain possible | 21° /8° | 0.4 mm | 5 | |
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Important Notice
Our weather forecast for Colorado 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 Colorado forecast closer to your planned date for the most up-to-date weather information.
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Colorado in September - FAQ
What are the expected maximum and minimum temperatures in Colorado during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Colorado during September?
Moderate rainfall is anticipated in Colorado during September, with a total of 50 mm spread over approximately 12 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Colorado during September?
The average wind speed in Colorado during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Colorado
Explore the daily rainfall trends and prepare for Colorados September weather 💧
UV exposure in Colorado during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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