Des Moines Weather in August

August in Des Moines brings high temperatures around 29°C (84°F) during the day, dropping to 18°C (64°F) at night, with quite a bit of rainfall expected, averaging around 121 mm (4.8 in) for the month.

Rainfall in Des Moines in August

Typically, about 11 days will experience rainfall, with an average of 121 mm (4.8 in) for the month. 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 Des Moines in August

August in Des Moines brings typical temperatures with highs around 29°C (84°F) and lows of 18°C (64°F). Overall, the month follows a fairly predictable daily temperature pattern. With overnight lows of 18°C (64°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 August

With approximately 299 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Wind Speed in Des Moines in August

August has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

Should you favor a climate that's both dry and comfortably warm, September typically offers the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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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 August

Min Temperature 18°C (64°F)  

Max Temperature 29°C (84°F)  

Chance of Rain 37%  

Precipitation 121 mm (4.8 in)  

Rainy days 11 days  

Humidity 68%  

Windspeed 3 m/s (6 knots)  

Sunshine 299 hours  

Percentage Sunshine 70%  

What to Wear in Des Moines in August

Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Des Moines in August

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

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.