Las Cruces weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Las Cruces in September. Check more long-term weather averages for Las Cruces in September before you book your next holiday to New Mexico in 2025/2026.

  • 30°C maximum daytime temperature in September in Las Cruces30
    30°C max day temperature
  • 10 hours of sunshine per day
  • 5 days with some rainfall in September in Las Cruces5
    5 days with some rainfall
  • 14°C minimum night-time temperature in September in Las Cruces14
    14°C min night temperature
  • 12 hours of daylight per day in September in Las Cruces12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Las CrucesM
    Moderate heat & humidity
  • 34 mm monthly rainfall in September in Las Cruces34
    34 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Las Cruces9
    9 (Very High) UV index

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The September weather guide for New Mexico (Las Cruces) 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)

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How hot is it in Las Cruces in September?

Daytime temperatures usually reach 30°C in Las Cruces in September with moderate heat and humidity, falling to 14°C at night.

How sunny is it in Las Cruces in September?

There are normally 10 hours of bright sunshine each day in Las Cruces in September - that's 81% of daylight hours.

Does it rain in Las Cruces in September?

There are usually 5 days with some rain in Las Cruces in September and the average monthly rainfall is 34mm.

Las Cruces September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:42 18:31
Monday, 15th September 2025 05:51 18:12
Tuesday, 30th September 2025 06:01 17:53

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