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Connecticut United States of America
Temperatures in September
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Connecticut temperatures in September

Connecticut is a region in the United States of America. In September the average maximum daytime temperatures are high and range from 23°C in Cornwall Bridge to 25°C in East Hartford. Nighttime temperatures generally drop to 14°C in East Hartford and 11°C in Cornwall Bridge.

What is the temperature of the different cities in Connecticut in September?

Explore the map below to discover average September temperatures at the top destinations in Connecticut. For a deeper dive, simply click on any destination dot.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in September in Connecticut?
    • According to our recent database analysis, East Hartford is the warmest city. It experiences an average maximum daytime temperature of approximately 25°C and rarely drops below 14°C during the night.

  • What is the coldest city in September in Connecticut?
    • Our database indicates that in September, Cornwall Bridge is the city with the coolest temperatures in Connecticut. You can expect daytime highs of 23°C and nighttime lows close to 11°C.

  • How much sun does Connecticut get in September?
    • Stamford enjoys close to 218 hours of sunlight. This not only brightens the days but also uplifts the atmosphere during the month.

    Interested in more climate information?

    We have much more information about the climate in Connecticut. Interested in the weather conditions in a specific month? Select the month below.

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