Typical Weather in Denver, CO in September

83° F Avg High

50° F Avg Low

3 Rainy Days

☀️ Temperature Summary

September is a popular time to visit, with an inviting climate featuring warm temperatures. Highs in September are typically around 83°F, which is warmer than usual in Denver. You can expect overnight lows near 50°F most days. Daily high temperatures can range between 86°F and 75°F for the month of September.

The warm, dry temperatures in September make Denver a great destination to relax and soak up the sun.

High Temps Throughout the Year

☔ Rain Summary

You can expect about a 11% chance of rain for any given day in September. It's one of the rainier months of the year for Denver, with total rainfall for the month around 1 inches.