Denver running guide
July · City Guide

What to Wear Running in Denver in July

In July, Denver averages a high of 89°F (32°C) and a low of 59°F (15°C). Most runs feel like about 74°F (23°C) once you factor in a typical morning or evening start, so dress for that number rather than the thermometer. Altitude, sun, and dry air mean big day-to-night temperature swings in Denver.

Average High

89°F (32°C)

Average Low

59°F (15°C)

Dress For

Feels like 74°F (23°C)

Best Time to Run

Run at dawn or after sunset. July highs near 89°F (32°C) make midday runs hot and slow in Denver.

What to Wear

Upper Body

Singlet or Tank

Maximum breathability for hot conditions

Essential

Lower Body

Running Shorts

Lightweight with built-in brief

Essential

Accessories

Sunglasses

UV protection

Recommended

Sunscreen

SPF 30+ water-resistant

Essential

Footwear

Running Shoes

Your regular training shoes

Essential

Pro Tips for July Running in Denver

  • Dress for about 74°F (23°C), not the reading on your phone — you warm up 10–15°F within the first mile.
  • Hydrate before you leave and carry water or plan a route past fountains for anything over 30 minutes.
  • Light colors and a breathable singlet beat a technical tee once temps climb past 75°F (24°C).
  • Denver swings roughly 30°F between the July high and low, so a run at 6am and one at noon call for different gear.
  • Skip cotton in any season — it holds sweat and chills you. Choose moisture-wicking synthetics or merino.

Recommended Gear

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Frequently Asked Questions

What should I wear running in Denver in July?

In July, Denver runs feel like about 74°F (23°C). Wear a breathable singlet or light short-sleeve, running shorts, a cap, and sunglasses. Prioritize sunscreen and hydration.

Is July a good time to run in Denver?

July is on the warm side but very runnable early and late in Denver, with average highs near 89°F (32°C) and lows near 59°F (15°C).

Should I wear shorts or tights running in Denver in July?

Shorts are the standard in Denver in July. At feels-like 74°F (23°C) tights will leave you overheating.

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