Denver in August
In August, Denver averages 30°C (86°F) during the day and 15°C (58°F) at night, with around 13 days of rain (34 mm total).
ShoulderConditions are warm and beach-friendly. Plan for unsettled weather and bring rain gear.
It's peak hurricane season in Denver during August. Travel is possible but expect storm risk, possible flight disruption, and generally lower travel insurance coverage.
How August compares to the rest of the year in Denver
August is one of the warmest months in Denver (2nd of 12) and moderately rainy compared to the rest of the year (5th of 12). Daytime temperature runs 12°C above the annual average (18°C). August runs 1°C cooler than July (31°C) and cools 3°C in September (27°C).
August sunrise & sunset in Denver
Times shown for Denver local time (America/Denver), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Denver — August
Golden-hour and blue-hour windows for the 15th of August, in Denver's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Denver in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (Shoulder) and Denver's popularity.
Crowds & pricing — August in Denver
Denver is in a shoulder season month — fewer crowds, slightly lower prices, and a calmer atmosphere than peak weeks. Most major sights stay open with normal hours, though a handful of seasonal restaurants or boat trips may run reduced schedules. Many regulars consider these months the best time to visit because you trade a small amount of weather reliability for a much more pleasant on-the-ground experience.
Why this tier: Northern Hemisphere summer holidays peak hazard season (1 active)
Sun & mosquito risk — August in Denver
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Denver in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 5°C / 41°F | -9°C / 16°F | 26 mm | 10 | — |
| February | 6°C / 43°F | -9°C / 15°F | 23 mm | 11 | — |
| March | 12°C / 53°F | -4°C / 24°F | 47 mm | 12 | — |
| April | 16°C / 61°F | 0°C / 33°F | 48 mm | 14 | — |
| May | 20°C / 68°F | 6°C / 42°F | 102 mm | 18 | — |
| June | 28°C / 83°F | 12°C / 54°F | 47 mm | 14 | — |
| July | 31°C / 88°F | 16°C / 60°F | 38 mm | 17 | — |
| August | 30°C / 86°F | 15°C / 58°F | 34 mm | 13 | — |
| September | 27°C / 81°F | 11°C / 52°F | 23 mm | 9 | — |
| October | 18°C / 65°F | 3°C / 37°F | 30 mm | 8 | — |
| November | 11°C / 52°F | -4°C / 26°F | 21 mm | 7 | — |
| December | 6°C / 43°F | -8°C / 18°F | 20 mm | 8 | — |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Denver in August →
Frequently asked questions
How hot is Denver in August?
In August, Denver averages a high of 30°C (86°F) and a low of 15°C (58°F) — generally hot.
Does it rain a lot in Denver in August?
August can be fairly wet in Denver, with about 13 rainy days on average.
Is August a good time to visit Denver?
August is hot. It suits travelers who are comfortable with hot weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Denver in August?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full August packing list for Denver for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.