Des Moines Weather in September

During September, Des Moines experiences high daytime temperatures of 25°C (77°F) and cooler nights around 13°C (55°F). Expect quite a bit of rainfall. Around 86 mm (3.4 in) is typical.

Rainfall in Des Moines in September

Rain is expected on roughly 9 days, totalling around 86 mm (3.4 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Des Moines in September

Des Moines has perfect weather in September, with days reaching 25°C (77°F) and nights cooling to 13°C (55°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Des Moines in September

The days are predominantly sunny, with an estimated total of around 240 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Des Moines in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Des Moines.

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• January
• February
• March
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• May
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• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Des Moines's climate page.

Des Moines Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 30%  

Precipitation 86 mm (3.4 in)  

Rainy days 9 days  

Humidity 65%  

Windspeed 3 m/s (6 knots)  

Sunshine 240 hours  

Percentage Sunshine 64%  

What to Wear in Des Moines in September

Warm but pleasant conditions in Des Moines in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Des Moines in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

8/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Des Moines's climate page.

More climate data for Des Moines

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Des Moines climate overview or explore weather in the United States of America.