Des Moines skyline above the Des Moines River

Weather · September

Des Moines weather in September

Average highs of 77°F, lows of 55°F and 3.2 in of rain, from 30 years of weather records.

September is Des Moines’s 4th warmest month, with average highs of 77°F and lows of 55°F. That is 7° cooler than August, and 16° above the yearly average high.

Average high
77°F
Average low
55°F
Precipitation
3.2 in
Wet days
8
Sunrise · sunset
6:54 AM · 7:25 PM

September across the year

  1. 31°14°Jan
  2. 36°18°Feb
  3. 49°30°Mar
  4. 62°41°Apr
  5. 72°52°May
  6. 82°62°Jun
  7. 86°66°Jul
  8. 84°64°Aug
  9. 77°55°Sep
  10. 63°43°Oct
  11. 48°30°Nov
  12. 36°20°Dec

High and low Rain

What to wear in September

  • Warm days: shorts and T-shirts, with a light layer for cooler evenings.
  • Pack an umbrella or rain jacket: rain or snow falls on about 8 days this month.

September is good for

What’s on in Des Moines in September

See all upcoming events and school days off.

Around Des Moines

Gray's Lake Park Winter, Des Moines
Gray's Lake Park WinterJesse, Robbins · CC BY-SA 4.0
Skyline downtown Des Moines
Skyline downtown Des MoinesBarbaraLN · CC BY-SA 2.0
Des Moines Skyline from East Walnut Street
Des Moines Skyline from East Walnut StreetBohao Zhao · CC BY 3.0

See Des Moines

A look around town before you go.

5 things to see and do in Des Moines, Iowa from bus life travels video thumbnail

THINGS TO DO · YOUTUBE SHORT

5 things to see and do in Des Moines, Iowa from bus life travels

A local activity Short shared by The Hive Drive.

Watch on YouTube ↗
3 things to do in Des Moines (Iowa) video thumbnail

THINGS TO DO · YOUTUBE SHORT

3 things to do in Des Moines (Iowa)

A local activity Short shared by Travel Tour.

Watch on YouTube ↗

September compared with the months around it

MonthHighLowRain
August84°F64°F4.2 in
September77°F55°F3.2 in
October63°F43°F2.8 in

Planning a trip? See the best time to visit Des Moines and today’s forecast.

Questions

How hot does it get in Des Moines in September?

Average highs are 77°F and average lows 55°F, for a daily mean of 66°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Des Moines in September?

September averages 3.2 in of precipitation over about 8 days with at least 0.01 in. It is the 6th wettest month of the year.

What time is sunset in Des Moines in September?

Around mid-September the sun rises about 6:54 AM and sets about 7:25 PM, for roughly 12.5 hours of daylight.

Is September a good time to visit Des Moines?

Yes. September is one of the mildest months, with highs between 65°F and 85°F and little rain.

NOAA U.S. Climate Normals 1991–2020, Des Moines Intl Ap station (3.9 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

Des Moines AI

Your Des Moines local guide
Hey there!

I'm Des Moines AI. Ask about neighborhood food, independent shops, local history or planning a visit.

AI recommendations may be inaccurate. Verify hours and prices. Questions are processed by Cloudflare. Privacy