St Joseph weather in September 2025

Expect 26°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Joseph in September. Check more long-term weather averages for St Joseph in September before you book your next holiday to Missouri in 2025/2026.

  • 26°C maximum daytime temperature in September in St Joseph26
    26°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in St Joseph8
    8 days with some rainfall
  • 13°C minimum night-time temperature in September in St Joseph13
    13°C min night temperature
  • 12 hours of daylight per day in September in St Joseph12
    12 hours of daylight per day
  • Low heat & humidity in September in St JosephL
    Low heat & humidity
  • 110 mm monthly rainfall in September in St Joseph110
    110 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in St Joseph7
    7 (High) UV index

More about St Joseph

St Joseph by month

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

Recommended for Missouri

Avalon Waterways: Top deals on 2025 river cruises

  • Book early & save on 2025 river cruises with Avalon Waterways
  • Filter deals by promotion, month, destination & more
  • Travel between 1st Jan & 31st Dec 2025 (inclusive)
Go to Avalon Waterways deal >>

Expires at 23:59 on Wednesday 31st Dec 2025 · View all Avalon Waterways offers

The September weather guide for Missouri (St Joseph) 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 the USA

How hot is it in St Joseph in September?

Daytime temperatures usually reach 26°C in St Joseph in September with low heat and humidity, falling to 13°C at night.

How sunny is it in St Joseph in September?

There are normally 8 hours of bright sunshine each day in St Joseph in September - that's 64% of daylight hours.

Does it rain in St Joseph in September?

There are usually 8 days with some rain in St Joseph in September and the average monthly rainfall is 110mm.

St Joseph September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:48 18:50
Monday, 15th September 2025 06:01 18:27
Tuesday, 30th September 2025 06:15 18:03

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^