Erie weather in September 2025

Expect 22°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Erie in September. Check more long-term weather averages for Erie in September before you book your next holiday to Pennsylvania in 2025/2026.

  • 22°C maximum daytime temperature in September in Erie22
    22°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in September in Erie11
    11 days with some rainfall
  • 12°C minimum night-time temperature in September in Erie12
    12°C min night temperature
  • 12 hours of daylight per day in September in Erie12
    12 hours of daylight per day
  • No heat & humidity in September in Erie0
    No heat & humidity
  • 111 mm monthly rainfall in September in Erie111
    111 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Erie6
    6 (High) UV index
  • 19°C sea temperature in September in Erie19
    19°C sea temperature

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The September weather guide for Pennsylvania (Erie) 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.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Erie in September?

Daytime temperatures usually reach 22°C in Erie in September, falling to 12°C at night.

How sunny is it in Erie in September?

There are normally 6 hours of bright sunshine each day in Erie in September - that's 51% of daylight hours.

How warm is the sea around Erie in September?

The average sea temperature around Erie in September is 19°C.

Does it rain in Erie in September?

There are usually 11 days with some rain in Erie in September and the average monthly rainfall is 111mm.

Erie September sunrise & sunset times

Browse the sunrise and sunset times for Erie in September 2025. Select a month to view Erie sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:46 18:54
Monday, 15th September 2025 06:01 18:29
Tuesday, 30th September 2025 06:17 18:03

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