Plattsburgh weather in September 2025

Expect 21°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Plattsburgh in September. Check more long-term weather averages for Plattsburgh in September before you book your next holiday to New York in 2025/2026.

  • 21°C maximum daytime temperature in September in Plattsburgh21
    21°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in September in Plattsburgh12
    12 days with some rainfall
  • 9°C minimum night-time temperature in September in Plattsburgh9
    9°C min night temperature
  • 12 hours of daylight per day in September in Plattsburgh12
    12 hours of daylight per day
  • No heat & humidity in September in Plattsburgh0
    No heat & humidity
  • 72 mm monthly rainfall in September in Plattsburgh72
    72 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Plattsburgh5
    5 (Moderate) UV index

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The September weather guide for New York (Plattsburgh) 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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More about New York

How hot is it in Plattsburgh in September?

Daytime temperatures usually reach 21°C in Plattsburgh in September, falling to 9°C at night.

How sunny is it in Plattsburgh in September?

There are normally 6 hours of bright sunshine each day in Plattsburgh in September - that's 50% of daylight hours.

Does it rain in Plattsburgh in September?

There are usually 12 days with some rain in Plattsburgh in September and the average monthly rainfall is 72mm.

What is the chance of a hurricane in Plattsburgh in September?

On average less than 1 day in September in Plattsburgh is likely to be affected by the passage of one or more tropical storms.

Plattsburgh September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:17 18:30
Monday, 15th September 2025 05:33 18:04
Tuesday, 30th September 2025 05:51 17:36

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