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New Haven weather in September 2021
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- 2323°C max day temperature
- 88 days with some rainfall
- 1313°C min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 8585 mm of monthly rainfall
- 66 (High) UV index
- 2121°C sea temperature
Recommended for Connecticut
The September weather guide for New Haven, 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.
How hot is it in New Haven in September?
Daytime temperatures usually reach 23°C in New Haven in September, falling to 13°C at night.
How sunny is it in New Haven in September?
There are normally 7 hours of bright sunshine each day in New Haven in September - that's 60% of daylight hours.
How warm is the sea around New Haven in September?
The average sea temperature around New Haven in September is 21°C.
Does it rain in New Haven in September?
There are usually 8 days with some rain in New Haven in September and the average monthly rainfall is 85mm.
What is the chance of a hurricane in New Haven in September?
On average less than 1 day in September in New Haven is likely to be affected by the passage of one or more tropical storms.
New Haven sunrise & sunset times for September 2021
Browse the sunrise & sunset times for New Haven in September 2021. Select a month to view New Haven sunrise & sunset times for the next twelve months.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st September 2021||06:18||19:24|
|Wednesday, 15th September 2021||06:32||19:00|
|Thursday, 30th September 2021||06:48||18:35|
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Metric (°C / mm) | Imperial (°F / inches)
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Where is hot in Connecticut in September for 2021/2022?
Below are average maximum temperatures at popular destinations in Connecticut in September. Select a destination to see more weather parameters.
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