Trenton weather in September 2025

Expect 79°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Trenton in September. Check more long-term weather averages for Trenton in September before you book your next holiday to New Jersey in 2025/2026.

  • 79°F maximum daytime temperature in September in Trenton79
    79°F max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in September in Trenton8
    8 days with some rainfall
  • 55°F minimum night-time temperature in September in Trenton55
    55°F min night temperature
  • 12 hours of daylight per day in September in Trenton12
    12 hours of daylight per day
  • No heat & humidity in September in Trenton0
    No heat & humidity
  • 4.0 inches monthly rainfall in September in Trenton4.0
    4.0 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Trenton6
    6 (High) UV index

More about Trenton

Trenton by month

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

Recommended for New Jersey

Travelsphere: Last minute holiday deals

  • Save on last minute on holidays with Travelsphere
  • Book tours to Africa, Asia, Europe, America & Oceania
  • Check out holidays departing in the next few months
Go to Travelsphere deal >>

View all Travelsphere offers

The September weather guide for New Jersey (Trenton) 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)  |  Imperial (°F)

Back to top

More about the USA

How hot is it in Trenton in September?

Daytime temperatures usually reach 79°F in Trenton in September with no heat and humidity, falling to 55°F at night.

How sunny is it in Trenton in September?

There are normally 7 hours of bright sunshine each day in Trenton in September - that's 58% of daylight hours.

Does it rain in Trenton in September?

There are usually 8 days with some rain in Trenton in September and the average monthly rainfall is 4.0 inches.

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

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

Trenton September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:27 18:30
Monday, 15th September 2025 05:40 18:07
Tuesday, 30th September 2025 05:55 17:42

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^