Denver weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: May – June, August – October
What is the weather like in Denver in August?
In August, Denver is hot: daytime highs average 29 °C, and nights cool down to about 14 °C. The sun shines for around 9 hours a day. Rain falls on about 8 days, adding up to 41 mm. On about 13 days the thermometer climbs to 30 °C or more. All in all, August is an excellent month for a holiday in Denver.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 71 | 80 | 92 |
| Day | 30° | 29° | 25° |
| Night | 15° | 14° | 10° |
| Sun | 10 h | 9 h | 8 h |
| Rain days | 9 | 8 | 6 |
More details for August
- Daylight
- 13 h 47 min06:11 – 19:58
- UV index
- 9 · very highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 14 km/haverage daily peakAll months
- Cloud cover
- 41 %on averageAll months
- Hot days
- 13 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−6America/Denver
How the score comes together
- Temperatureweight 50 %77 %
- Sunshineweight 20 %95 %
- Few rainy daysweight 30 %74 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- A jumper for the evenings
Denver in August: quick answers
Is Denver hot in August?
Yes. In August, Denver is hot: daytime highs average 29 °C and nights stay around 14 °C. On about 13 days the thermometer climbs to 30 °C or more.
Does it rain much in Denver in August?
Rain falls on about 8 days, adding up to 41 mm.
Denver month by month
The whole year in DenverAll destinations: USAWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences