Mild
Average highs are around 25°C, so days are mild rather than hot.
September verdict
Denver, Colorado, United States in September
Weather score66Good
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 9h per day, so bright days are a strong part of the month. Rainfall averages 30mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
25°C
Rain
30mm
Sun
9h
Weather score
66
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 30mm, which is relatively low for holiday planning.
Bright
Sunshine averages 9h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Denver, Colorado, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September25°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to August
This stretch sets the upper range for average daytime heat.
Rain
September30mm average rain
September sits on the drier side of Denver's year, which helps with sightseeing and transfers.
Driest monthsJanuary to April, June, and August to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September9 hours average sun
September sits close to Denver's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
September66 weather score
September sits close to Denver's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
Hotels in Denver, Colorado, United States
Marriott
View all
The Ritz-Carlton, DenverDenver, Colorado, USA
Hotel Clio, a Luxury Collection Hotel, Denver Cherry CreekDenver, Colorado, USA
Denver Marriott Tech CenterDenver, Colorado, USA
Renaissance Denver Downtown City Center HotelDenver, Colorado, USA
Renaissance Denver Hotel & Conference CenterDenver, Colorado, USA
The Westin Denver DowntownDenver, Colorado, USA