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Best time to visit Colorado
The best times to visit Colorado (Denver) are in May, June and September based on our default weather conditions. Update your weather preferences to see which months best match.
- Best time to visit
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Colorado by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Colorado
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Top Colorado destinations
Below are the temperatures expected today at popular countries, regions and places in Colorado. Select a destination to compare today's forecast with average weather conditions.
All Colorado destinations
- Alamosa
- Aspen
- Breckenridge
- Colorado Springs
- Denver
- Durango
- Estes Park
- Fort Collins
- Glenwood Springs
- Grand Junction
- Pueblo
- Telluride
- Vail
When is the best time to visit Colorado?
The best times to visit Colorado (Denver) are in May, June and September based on the following average weather conditions.
Maximum daytime temperature = 22 - 30°C [remove]
Change the criteria to reflect your weather preferences.
Max Day Temperature (°C)
- Jan
6 - Feb
8 - Mar11
- Apr
17 - May
22 - Jun
27 - Jul
31 - Aug30
- Sep
25 - Oct
19 - Nov
12 - Dec7
Best time to visit
The weather guide for Colorado (Denver) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Colorado
Explore our complete guide to Colorado with the latest travel advice for travellers and holidaymakers including official updates and local travel tips for Colorado.
Colorado travel guide - essential info
Below is a beginner's guide to Colorado with essential travel facts such as dominant language spoken, typical flight time from the UK and the local currency. You can also check whether visas are required and what plug adapter you need to pack.
| Colorado - quick facts | |
|---|---|
| Flight time✝ | 10 hours |
| Time difference | UK -7 hours |
| Language(s) | English |
| Currency | US Dollar |
| Electricity | A + B plug (120V) |
| Driving side | Right |
| Visa✝ | Yes |
✝ = Typical flight time from the UK and visa requirements for UK travellers.
Travelling to Colorado?
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Accommodation in Colorado
Things to do in Colorado
Buses & trains in Colorado
Car hire in Colorado
Money transfers to Colorado
Airport taxis for Colorado
Skiing holidays in Colorado
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Colorado travel deals
Check out the latest deals, discount codes and special offers on holidays, flights, hotels and more for Colorado in 2026/2027. Pay low deposits and save with last minute holidays, early bird offers and free kids places where available.
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Colorado travel guidance
Check the latest travel guidance and advice on visiting Colorado from official government sources (in english) from around the world including entry requirements and travel restrictions.
- UK traveller advice for the Colorado - UK FCDO
- Irish traveller advice for the Colorado - Department of Foreign Affairs, Ireland
- Canadian travel advice for the Colorado - Government of Canada
- Safe travel advisories for the Colorado - Ministry of Foreign Affairs, New Zealand
- Smarter traveller advice for the Colorado - Department of Foreign Affairs, Australia
Learn more about the current safety and security risks from terrorism, natural disasters and more. Read about the local laws and customs to consider when travelling around Colorado.
Note: UK FCDO - UK Foreign, Commonwealth & Development Office
Colorado travel health
Find out more about staying safe when travelling to Colorado with the latest guidance on required vaccinations and recommended medication to take with you.
- Vaccines & medicines for the Colorado - CDC
- Health & vaccinations for the Colorado - TravelHealthPro, NaTHNac
- How to stay safe & healthy in the Colorado - Fit for Travel, Public Health Scotland
Check out the general travel tips for staying safe and healthy in Colorado, risks of preventable diseases and what to pack.
Note: CDC - Centers for Disease Control and Prevention
Colorado travel features
Do you want to learn more about Colorado? Read our latest features covering travel tips and insider destination guides on where to go and what to do in Colorado.
Colorado FAQs
Read our frequently asked questions about travelling to Colorado including the current entry restrictions, driving side, electrical plugs used and much more.
Which is the hottest month in Colorado?
The hottest time of year in Denver, Colorado is normally July. Expect maximum daytime temperatures to reach 31°C with moderate heat and humidity.
Which month has the most rain in Colorado?
In terms of rainfall, May is usually the wettest month in Denver, Colorado with 71mm on average. There are normally 10 days in May with some rain.
When is it sunniest in Colorado?
The sunniest time of year in Denver, Colorado is normally September with bright sunshine on average for 73% of daylight hours; that's 9 hours of sunshine per day.
What is the flight time to Colorado from the UK?
The flight time to Colorado from the UK is typically 10 hours.
What is the time difference between Colorado and the UK?
The time difference between Colorado and the UK is UK time-7 hours.
What is the main language spoken in Colorado?
The main language spoken in Colorado is English.
Learn a language for Colorado with Busuu*, Rocket Languages* and Rosetta Stone*.
What is the currency in Colorado?
The currency in Colorado is the US Dollar (USD).
Send money to Colorado with TransferGo*.
Which plugs are used in Colorado?
Colorado uses electrical plug type A + B (120 Volts).
Which side of the road do they drive on in Colorado?
They drive on the right side of the road in Colorado.
Find out more about driving in USA with International Drivers Association*.
Do you need a visa for Colorado?
Yes, UK passport holders do need a visa to enter Colorado.
Check USA visa requirements for all passport holders with VisaHQ*.
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