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

Pennsylvania is a region in the United States of America. September in has maximum daytime temperatures ranging from pleasant in Mount Pocono with 21°C to high temperatures in Philadelphia with 26°C. Nighttime temperatures generally drop to 17°C in Philadelphia and 11°C in Mount Pocono.

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

Find the average daytime temperatures in September for the most popular destinations in Pennsylvania on the map below. Click on a destination dot for more detailed information.

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 Pennsylvania?
    • Philadelphia tops the warmest city list in our database with average maximum daytime temperatures around 26°C and a minimum nighttime temperature of around 17°C.

  • What is the coldest city in September in Pennsylvania?
    • Our database indicates that in September, Mount Pocono is the city with the coolest temperatures in Pennsylvania. You can expect daytime highs of 21°C and nighttime lows close to 11°C.

  • How much sun does Pennsylvania get in September?
    • The weather is predominantly sunny, with an estimated total of around 218 hours of sunshine in Philadelphia. This means many sunny days, which creates a cheerful atmosphere during this month.

  • What is the water's temperature in September?
    • The water temperature averages approximately 22°C in Philadelphia this month, a rehreshing temperature for swimming and cooling off.

    Interested in more climate information?

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

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