Denver running guide
October · City Guide

What to Wear Running in Denver in October

In October, Denver averages a high of 65°F (18°C) and a low of 36°F (2°C). Most runs feel like about 51°F (11°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

65°F (18°C)

Average Low

36°F (2°C)

Dress For

Feels like 51°F (11°C)

Best Time to Run

Almost any time works this month. Early mornings are coolest if you prefer to avoid the 65°F (18°C) afternoon high.

What to Wear

Upper Body

Short Sleeve Tech Shirt

Breathable running tee

Essential

Lower Body

Capris or Light Tights

3/4 length for moderate warmth

Essential

Footwear

Running Shoes

Your regular training shoes

Essential

Pro Tips for October Running in Denver

  • Dress for about 51°F (11°C), not the reading on your phone — you warm up 10–15°F within the first mile.
  • This is close to ideal running weather. A short or long sleeve tech shirt covers most runs.
  • Bring a light layer you can tie around your waist if the wind picks up.
  • Denver swings roughly 29°F between the October 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 October?

In October, Denver runs feel like about 51°F (11°C). A short or long-sleeve tech shirt with shorts or light tights is ideal. Carry a packable layer if it is windy.

Is October a good time to run in Denver?

October is some of the best running weather of the year in Denver, with average highs near 65°F (18°C) and lows near 36°F (2°C).

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

It is a toss-up in October. Many runners are comfortable in shorts once moving, while capris or light tights suit anyone who runs cold at feels-like 51°F (11°C).

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