What is the weather like in Denver throughout the year?

Denver experiences varying weather throughout the year. The warmest month is July with average highs of 31°C. The coolest month is January.

What is the weather like in Denver in September?

Denver in September scores 68/100 based on 30 years of climate data. Recommended for planning your trip.

Who should visit Denver in September?

September in Denver is ideal for: Families with children, Elderly travelers, Outdoor enthusiasts, Photographers, Cultural tourists.

Best Time to Visit Denver | 30-Year Weather Analysis

Why September is the Best Time to Visit Denver

Is September a Good Time to Visit Denver?

👍Recommended for planning your trip(68/100)

Short Answer

Denver's September delivers on its reputation: 26°C, 12% rain, 10.6h sunshine. The trade-off? Peak crowds and prices at 96% capacity.

Decision Factors

Peak tourist season

96% of annual peak - expect crowds and peak prices

Ideal temperature range

26°C - perfect for sightseeing and outdoor activities

Excellent dry conditions

Only 12% rain probability - ideal for outdoor activities

Large day-night temperature swing

10.3°C to 26°C - pack layers

Comfortable humidity levels

48% humidity - pleasant conditions

Plenty of sunshine

10.6h of sunshine daily

Good For

👨‍👩‍👧‍👦
Families with children
Comfortable 26°C temperatures and low 12% rain risk
👴
Elderly travelers
Comfortable 26°C temperature range with manageable humidity
🥾
Outdoor enthusiasts
Ideal hiking conditions: 26°C, 12% rain chance
📸
Photographers
10.6h sunshine, 65% clear skies for golden hour shots
🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere

Warmest

July

31°C avg

Coolest

January

5°C avg

Driest

December

8% rain

Wettest

May

25% rain

Planning Your Trip to Denver, United States

Wondering when is the best time to visit Denver? Based on our analysis of 30 years of NASA satellite weather data, the ideal months to travel to Denver are September, October, June. During these months, you'll experience optimal temperatures around 26°C with only 12% chance of rain.

The Denver climate varies throughout the year. July is the hottest month with average highs of 31°C, while January is the coldest at 5°C. If you're planning outdoor activities or sightseeing in Denver, avoid May when rainfall peaks at 25% probability.

For the best Denver weather experience, we recommend visiting during December for the driest conditions or the shoulder months of September and October for a perfect balance of weather and fewer crowds.

Denver Weather by Month: Climate Guide

Click any month to explore detailed daily forecasts for Denver

🏆 85-100: Excellent👍 70-84: Great👌 55-69: Good🤔 40-54: Fair⚠️ 0-39: Challenging

When to Visit Denver: Travel Style Guide

Personalized Denver travel recommendations based on 30-year weather data

Beach Lovers

Warmest months with comfortable temperatures for outdoor activities

JulyAugustJune

Budget Travelers

Shoulder season with good weather and lower prices

FebruaryMarchApril

Avoiding Crowds

Fewer tourists with acceptable weather conditions

January

Photography

Best light conditions with clear skies

NovemberSeptemberOctober

Winter Escape

Escape the cold with warmest temperatures

JuneJulyAugust

Honeymoon

Perfect conditions for a romantic getaway

FebruaryMarchApril

Denver Weather FAQ: Your Questions Answered

What is the best time to visit Denver?

Based on 30 years of weather data, the best months to visit Denver are September, October, June. These months offer the optimal combination of pleasant temperatures (26°C avg) and low rainfall (12% chance).

When is the hottest time of year in Denver?

July is historically the warmest month in Denver with average highs of 31°C. If you prefer cooler weather, consider visiting in January when temperatures average around 5°C.

When is the rainy season in Denver?

May typically sees the most rainfall in Denver with a 25% chance of rain. For the driest conditions, plan your visit in December when rain probability drops to just 8%.

How accurate is the Denver weather forecast?

Our Denver climate analysis is based on 30 years of NASA POWER satellite observations (1995-2024), providing highly accurate historical averages. While weather can vary year to year, these long-term patterns are excellent indicators for planning your trip to Denver.

What should I pack for Denver?

Packing depends on when you visit. In July (warmest month), pack light summer clothes for 31°C weather. In January (coolest month), bring layers for 5°C temperatures.

Is Denver good for a destination wedding?

Yes! The best months for an outdoor wedding in Denver are December (only 8% rain chance) and September for optimal weather conditions. Avoid May when rain probability peaks at 25%.