Verdict

In Denver, August has a distinct summer feel. As the season moves along, the air is cooling down. You can usually expect a warm month that feels manageable day to day. Breezes can be part of the character, especially in exposed spots.

It suits travellers who want straightforward weather for sightseeing and day trips. Sun exposure can add up quickly around the middle of the day.

Avg High
Avg Low
Rain
Daylight
14h
What to expect
  • Temperature feel - Heat-forward afternoons where evenings can feel like a different season. The “feels like” is usually in line with the air temperature.
  • Wet weather - Changeable skies. It’s often more stop-start than all-day. Wet breaks can interrupt outdoor plans.
  • Midday sun - Very high UV is common. Outdoor time is best in the morning or late afternoon. It's the kind of sun you notice immediately.
  • Exposure - Generally still, and gusts can catch you in exposed spots. Sheltered streets can feel fine, but open areas feel very different.
August in context

How it compares to the rest of the year in Denver.

Hottest (avg)
#2 / 12
Wettest (avg)
#6 / 12
Daylight Hours
#4 / 12
Windiest (avg)
#12 / 12
Highest UV
#4 / 12
Most Humid
#10 / 12

Temperature

Daytime high
Nighttime low
Feels like (avg)

Sunshine

Daylight
13.7 hours
UV index (max)
8
Typical sun hours
05:12 – 18:53

Rain & Snow

Total
Rainy days
11
Cloud cover
40%
Snowfall

Humidity & Wind

Humidity (avg)
50%
Wind (avg)
Wind (max gusts)

Frequently asked questions

Is August a good time to visit Denver?

Typical August days in Denver reach highs of 29°C (84°F) with nights around 14°C (57°F). It usually feels hot by day and cool after dark. Overall, August sits in the middle of the Denver climate range.

What are temperatures like in August?

Daytime temperatures in August typically peak near 29°C (84°F), while nights drop to around 14°C (57°F). Expect hot afternoons and cool evenings.

How much does it rain in August?

Rainfall in August averages 37 mm (1.5 in) across roughly 11 days. Overall it is a quite rainy time of year, so a light rain jacket and waterproof shoes are very handy.

How many hours of daylight are there in August?

You can expect about 14 hours of daylight in August. Sunrise is typically around 05:12 and sunset near 18:53. You get long days with comfortable amounts of daylight.

How strong is the sun in August?

UV levels frequently reach very high levels (around 8), so strong sun protection is essential, especially around midday.

Is it windy in August?

In August, average wind speeds are around 8 km/h (5 mph), with gusts on the windiest days reaching about 42 km/h (26 mph). On the ground, it is it often feels breezy, especially in more exposed spots or along the coast.

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