Estes Park weather in September 2025

Expect 16°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Estes Park in September. Check more long-term weather averages for Estes Park in September before you book your next holiday to Colorado in 2025/2026.

  • 16°C maximum daytime temperature in September in Estes Park16
    16°C max day temperature
  • 8 hours of sunshine per day
  • 9 days with some rainfall in September in Estes Park9
    9 days with some rainfall
  • -1°C minimum night-time temperature in September in Estes Park-1
    -1°C min night temperature
  • 12 hours of daylight per day in September in Estes Park12
    12 hours of daylight per day
  • No heat & humidity in September in Estes Park0
    No heat & humidity
  • 39 mm monthly rainfall in September in Estes Park39
    39 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Estes Park8
    8 (Very High) UV index

More about Estes Park

Estes Park by month

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

Recommended for Colorado

  • 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)

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

The September weather guide for Colorado (Estes Park) 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 warm is it in Estes Park in September?

Daytime temperatures usually reach 16°C in Estes Park in September, falling to -1°C at night.

How sunny is it in Estes Park in September?

There are normally 8 hours of bright sunshine each day in Estes Park in September - that's 68% of daylight hours.

Does it rain in Estes Park in September?

There are usually 9 days with some rain in Estes Park in September and the average monthly rainfall is 39mm.

Estes Park September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:30 18:33
Monday, 15th September 2025 05:43 18:10
Tuesday, 30th September 2025 05:58 17:45

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^