Late summer · Weather & things to do
Denver in August
Denver edges cooler than July, with highs of 89°F (32°C), lows of 61°F (16°C) and about 2.0 in (52 mm) of rain.
Our comfort score puts it mid-table at 75/100, 8th of 12.
- Avg high
- 89°F (32°C)
- Avg low
- 61°F (16°C)
- Rain
- 2.0 in (52 mm)
- Humidity
- 46%
- Cloud cover
- 47%
- Daylight
- ~13 h 34 min
- Comfort score
- 75/100 · Great
What August feels like
Afternoons run hot at about 89°F (32°C), which leaves mornings and evenings as the time for walking.
Mornings start much cooler: lows average 61°F (16°C), about 15°C (28°F) below the afternoon high.
About 2.0 in (52 mm) of rain falls in a typical year's August.
Plan around August
August sits mid-table; the best months are April & May and September & October.
- Comfort improves from 67/100 in July to 75/100.
- August sits inside the Jun – Sep window our Colorado Rockies route recommends.
What to pack for August
- Light, breathable clotheshighs average 89°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Refillable water bottleeasy to dehydrate in the heat
- A warm layer for eveningslows near 61°F
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Denver in August
Afternoons run hot (89°F), so these picks mix early-start outdoor spots with cool indoor breaks.
Red Rocks Park and Amphitheatre
Concert venue set between 300-foot sandstone monoliths with views back to the Denver skyline.
Why now Our curated notes say it's best sunset or summer concert.
Denver Botanic Gardens
24 acres of themed gardens including a Japanese garden and a high-plains alpine collection.
Why now Our curated notes say it's best May–Sep.
Denver Art Museum
Strong Western American and Indigenous art collections in a jagged titanium-clad Libeskind building.
Why now A break from 89°F afternoons.
Larimer Square
Denver's oldest block, lined with Victorian buildings, string lights, shops and restaurants.
Why now August scores 75/100 for comfort, good conditions for being outside.
Buckhorn Exchange
Denver's oldest restaurant (1893), packed with taxidermy and serving steaks and game.
Why now Somewhere to sit out the hottest hours.
Nearby in August
- Rocky Mountain NP in August~56 mi · highs 71°F, 1.7 in rain · 10°C (17°F) cooler by day, about as wet
- Breckenridge in August~59 mi · highs 70°F, 1.9 in rain · 11°C (19°F) cooler by day, about as wet
- Vail in August~73 mi · highs 75°F, 1.9 in rain · 8°C (14°F) cooler by day, about as wet
- Aspen in August~105 mi · highs 76°F, 1.8 in rain · 7°C (12°F) cooler by day, about as wet
These averages also cover City Park and Downtown Denver & 16th Street.
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~2,095 m to Denver's ~1,597 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Denver in August: quick answers
Is August a good time to visit Denver?
It's middling, scoring 75/100. The best months are April & May and September & October, at up to 95. Expect highs of 89°F (32°C) and 2.0 in (52 mm) of rain. August is inside the Jun – Sep window our Colorado Rockies route recommends.
How hot is Denver in August?
Average highs are 89°F (32°C) and average lows 61°F (16°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Denver in August?
Not much: about 2.0 in (52 mm) of rain falls across August on average, the 3rd-wettest month of the year. The annual total is about 17.3 in (440 mm).
What should I pack for Denver in August?
Bring light, breathable clothes (highs average 89°F), sunscreen, sunglasses and a hat (high UV on clear days), refillable water bottle (easy to dehydrate in the heat), a warm layer for evenings (lows near 61°F) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Routes in season in August
- Colorado Rockies Jun – Sep
Planning Denver in August?
Share this August plan with your group, poll everyone on dates and keep the packing list in one place.