The month in detail
What to expect in October
Autumn in Denver is often underrated: 21°C, golden light and declining crowds. An interesting window. Rain risk remains low (11% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if September (9.2/10) remains theoretically better.
October ranks 5 out of 12 months in Denver. Compared to September: −7°C daytime, −1.1h of sun per day.
This month's conditions
What it's like in October
UV index
5 · moderate
protect during midday hours
Feels like
dry air
-2°
Daylight
10.9h of daylight
Air quality
good
AQI 23
Compare
Is October the right month?
The best month in Denver is September (9.2/10), 1.0 pt higher than October.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Denver
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Denver
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.
Country · United States
🗣️LanguageEnglish
💶CurrencyUS Dollar ($)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘExpensive · 4/5
🌡️ Climate
🌍Climate typeTemperate
📈Climate trend ⓘStable
🔥Hottest monthJuly · 32°C
❄️Coolest monthJanuary · 5°C
🌧️Rainiest month ⓘMay · 27%
🏛️ City break
📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
Explore
Other destinations in October
If October doesn't convince you for this destination, compare with others.
Location
Where is Denver ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
United StatesTemperate climate with a 9.2 → 4.2 gap between best and worst month. 10 years of ERA5 data to choose by project.
39.74°N · 104.99°W
Questions
Frequently asked questions
What is the best time to visit Denver?
September is the best month with 28.0°C highs, 11.0°C lows, 9.1h of sunshine and 11.0% rainy days. The months of September & June offer comparable conditions.
How many hours of sunshine does Denver get in September?
Denver averages 9.1 sunshine hours per day in September. It is the sunniest month with a climate score of 8.9/10.
What is the rainiest month in Denver?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Denver in September?
In September, overnight lows reach 11.0°C, while afternoon highs average 28.0°C.
Is Denver good in winter?
In winter (December-February), Denver scores 4.1/10 on average — Difficult period — prefer the peak season.. The best month overall remains September with a score of 8.9/10.
When should you avoid Denver?
January is the most difficult month to visit Denver, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Denver in October?
The average UV index reaches 5 in October in Denver (moderate), with about 10.9h of daylight. Protect during midday hours.