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Connecticut weather in September 2023
- 2323°C max day temperature
- 99 days with some rainfall
- 1111°C min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 9595 mm of monthly rainfall
- 66 (High) UV index
Below are average maximum temperatures at popular destinations in Connecticut in September. Select a destination to see more weather parameters.
Recommended for Connecticut
The September weather guide for Connecticut (Hartford) 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.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Metric (°C / mm) | Imperial (°F / inches)
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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 September sunrise & sunset times
Browse the sunrise and sunset times for Connecticut in September 2023. Select a month to view Connecticut sunrise and sunset times for the next 12 months. The Connecticut sunrise and sunset times shown below are for Hartford.
|Date||Sunrise times||Sunset times|
|Friday, 1st September 2023||06:16||19:24|
|Friday, 15th September 2023||06:31||19:01|
|Saturday, 30th September 2023||06:46||18:35|
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