New York City weather in September 2025

Expect daytime maximum temperatures of 24°C in New York City, New York in September based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 92 mm of rainfall in the month.

  • 24°C maximum daytime temperature in September in New York City24
    24°C max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in September in New York City8
    8 days with some rainfall
  • 16°C minimum night-time temperature in September in New York City16
    16°C min night temperature
  • 12 hours of daylight per day in September in New York City12
    12 hours of daylight per day
  • No heat & humidity in September in New York City0
    No heat & humidity
  • 92 mm monthly rainfall in September in New York City92
    92 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in New York City6
    6 (High) UV index
  • 21°C sea temperature in September in New York City21
    21°C sea temperature

More about New York City

New York City by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for New York

TUI: up to 8% off holidays booked online

  • Book online with TUI & save up to 8% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost
Go to TUI deal >>

View all TUI offers

TUITUI deal finder

The September weather guide for New York (New York City) 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)

Back to top

More about New York City

How hot is it in New York City in September?

Daytime temperatures usually reach 24°C in New York City in September, falling to 16°C at night.

How sunny is it in New York City in September?

There are normally 7 hours of bright sunshine each day in New York City in September - that's 59% of daylight hours.

How warm is the sea around New York City in September?

The average sea temperature around New York City in September is 21°C.

Does it rain in New York City in September?

There are usually 8 days with some rain in New York City in September and the average monthly rainfall is 92mm.

What is the chance of a hurricane in New York City in September?

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

New York City September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:23 18:28
Monday, 15th September 2025 05:37 18:04
Tuesday, 30th September 2025 05:52 17:39

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^