Denver Weather in September

September is one of the excellent months to visit Denver, with daytime temperatures of 26°C (79°F) and lows of 10°C (50°F) at night. Some rainfall is typical for this time of year.

Rainfall in Denver in September

Historically, September sees about 7 days of rain, with a monthly average of 53 mm (2.1 in). When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Denver in September

If you're visiting Denver in September, expect excellent temperatures with highs of 26°C (79°F) and overnight lows of 10°C (50°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights fall to 10°C (50°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Denver in September

The city usually sees around 270 hours of sunlight, indicating many sunny days , a great month for sightseeing.

Wind Speed in Denver in September

Wind speeds average 4 m/s (8 knots) during September. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

So this is a great month to visit if you prefer dry days with pleasant temperatures.