St Louis weather in September 2024

Expect 27°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Louis in September. Check more long-term weather averages for St Louis in September before you book your next holiday to Missouri in 2024/2025.

  • 27°C maximum daytime temperature in September in St Louis27
    27°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in September in St Louis8
    8 days with some rainfall
  • 15°C minimum night-time temperature in September in St Louis15
    15°C min night temperature
  • 12 hours of daylight per day in September in St Louis12
    12 hours of daylight per day
  • Low heat & humidity in September in St LouisL
    Low heat & humidity
  • 78 mm monthly rainfall in September in St Louis78
    78 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in St Louis7
    7 (High) UV index

More about St Louis

St Louis by month

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

Recommended for Missouri

Avalon Waterways: Current offers on 2024 river cruises

  • Save on river cruises in 2024 with Avalon Waterways
  • Book river cruises in Europe, Asia, Africa & Americas
  • Filter deals by promotion, month, destination & more
Go to Avalon Waterways deal >>

Expires at 23:59 on Tuesday 31st Dec 2024 · View all Avalon Waterways offers

The September weather guide for Missouri (St Louis) 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 Louis in September?

Daytime temperatures usually reach 27°C in St Louis in September with low heat and humidity, falling to 15°C at night.

How sunny is it in St Louis in September?

There are normally 8 hours of bright sunshine each day in St Louis in September - that's 63% of daylight hours.

Does it rain in St Louis in September?

There are usually 8 days with some rain in St Louis in September and the average monthly rainfall is 78mm.

St Louis September sunrise & sunset times

Browse the sunrise and sunset times for St Louis in September 2024. Select a month to view St Louis sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st September 2024 06:31 19:30
Sunday, 15th September 2024 06:43 19:08
Monday, 30th September 2024 06:56 18:44

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^