Nevada weather in September 2025

Expect 35°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Nevada in September. Check more long-term weather averages for Nevada in September before you book your next holiday to Nevada in 2025/2026.

  • 35°C maximum daytime temperature in September in Nevada (Las Vegas)35
    35°C max day temperature
  • 11 hours of sunshine per day
  • 2 days with some rainfall in September in Nevada (Las Vegas)2
    2 days with some rainfall
  • 19°C minimum night-time temperature in September in Nevada (Las Vegas)19
    19°C min night temperature
  • 12 hours of daylight per day in September in Nevada (Las Vegas)12
    12 hours of daylight per day
  • High heat & humidity in September in Nevada (Las Vegas)H
    High heat & humidity
  • 9 mm monthly rainfall in September in Nevada (Las Vegas)9
    9 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Nevada (Las Vegas)8
    8 (Very High) UV index

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The September weather guide for Nevada (Las Vegas) 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.

Top Nevada destinations

Below are average maximum temperatures at popular countries, regions and places in Nevada in September. Select a holiday destination to see more weather parameters.

All Nevada destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Nevada

How hot is it in Nevada in September?

Daytime temperatures usually reach 35°C in Las Vegas, Nevada in September with high heat and humidity, falling to 19°C at night.

How sunny is it in Nevada in September?

There are normally 11 hours of bright sunshine each day in Las Vegas, Nevada in September - that's 90% of daylight hours.

Does it ever rain in Nevada in September?

There are usually 2 days with some rain in Las Vegas, Nevada in September and the average monthly rainfall is 9mm.

Nevada September sunrise & sunset times

Browse the sunrise and sunset times for Nevada in September 2025. Select a month to view Nevada sunrise and sunset times for the next 12 months. The Nevada sunrise and sunset times shown below are for Las Vegas.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:13 18:08
Monday, 15th September 2025 05:23 17:47
Tuesday, 30th September 2025 05:35 17:25

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