Colorado weather in September 2020

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Below are average maximum temperatures at popular destinations in Colorado in September. Select a destination to see more weather parameters.

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The September weather guide for Colorado shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How hot is it in Colorado in September?

Daytime temperatures usually reach 25°C in Denver, Colorado in September with no heat and humidity, falling to 8°C at night.

How sunny is it in Colorado in September?

There are normally 9 hours of bright sunshine each day in Denver, Colorado in September - that's 73% of daylight hours.

Does it rain in Colorado in September?

There are usually 7 days with some rain in Denver, Colorado in September and the average monthly rainfall is 30mm.

Colorado sunrise & sunset times for September 2020

Browse the sunrise & sunset times for Colorado in September 2020. Select a month to view Colorado sunrise & sunset times for the next twelve months. The Colorado sunrise & sunset times shown below are for Denver.


Date Sunrise times Sunset times
Tuesday, 1st September 2020 06:29 19:30
Tuesday, 15th September 2020 06:42 19:07
Wednesday, 30th September 2020 06:56 18:43
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Metric (°C / mm)  |  Imperial (°F / inches)

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