Roswell weather in September 2025

Expect daytime maximum temperatures of 86°F in Roswell, New Mexico in September based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 1.8 inches of rainfall in the month.

  • 86°F maximum daytime temperature in September in Roswell86
    86°F max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in September in Roswell7
    7 days with some rainfall
  • 59°F minimum night-time temperature in September in Roswell59
    59°F min night temperature
  • 12 hours of daylight per day in September in Roswell12
    12 hours of daylight per day
  • Moderate heat & humidity in September in RoswellM
    Moderate heat & humidity
  • 1.8 inches monthly rainfall in September in Roswell1.8
    1.8 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Roswell9
    9 (Very High) UV index

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The September weather guide for New Mexico (Roswell) 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)

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How hot is it in Roswell in September?

Daytime temperatures usually reach 86°F in Roswell in September with moderate heat and humidity, falling to 59°F at night.

How sunny is it in Roswell in September?

There are normally 9 hours of bright sunshine each day in Roswell in September - that's 71% of daylight hours.

Does it rain in Roswell in September?

There are usually 7 days with some rain in Roswell in September and the average monthly rainfall is 1.8 inches.

Roswell September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:33 18:23
Monday, 15th September 2025 05:42 18:04
Tuesday, 30th September 2025 05:52 17:43

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