Connecticut weather in September 2021

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

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The September weather guide for Connecticut 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 Connecticut in September?

Daytime temperatures usually reach 23°C in Hartford, Connecticut in September, falling to 11°C at night.

How sunny is it in Connecticut in September?

There are normally 7 hours of bright sunshine each day in Hartford, Connecticut in September - that's 59% of daylight hours.

Does it rain in Connecticut in September?

There are usually 9 days with some rain in Hartford, Connecticut in September and the average monthly rainfall is 95mm.

What is the chance of a hurricane in Connecticut in September?

On average less than 1 day in September in Hartford, Connecticut is likely to be affected by the passage of one or more tropical storms.

Connecticut sunrise & sunset times for September 2021

Browse the sunrise & sunset times for Connecticut in September 2021. Select a month to view Connecticut sunrise & sunset times for the next twelve months. The Connecticut sunrise & sunset times shown below are for Hartford.


Date Sunrise times Sunset times
Wednesday, 1st September 2021 06:17 19:24
Wednesday, 15th September 2021 06:31 19:00
Thursday, 30th September 2021 06:47 18:34
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Metric (°C / mm)  |  Imperial (°F / inches)

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