Dayton Weather in September

With daytime temperatures of 28°C (82°F) and nighttime lows of 15°C (59°F), September in Dayton brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 103 mm (4.1 in) falls on average.

Rainfall in Dayton in September

Historically, the month has about 9 days of rain, averaging 103 mm (4.1 in) in total. 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 Dayton in September

In September, Dayton gets high temperatures, with highs of 28°C (82°F). Nights cool to around 15°C (59°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Dayton in September

The days are predominantly sunny, with an estimated total of around 229 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

If your ideal day consists of dry skies and pleasant temperatures, April, May, September and October typically offer the best circumstances for Dayton.

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 Dayton's climate page.

Dayton Temperature in September

Min Temperature 15°C (59°F)  

Max Temperature 28°C (82°F)  

Chance of Rain 31%  

Precipitation 103 mm (4.1 in)  

Rainy days 9 days  

Humidity 77% *  

Sunshine 229 hours *  

Percentage Sunshine 61% *  

* Data from: Chattanooga, the United States of America (56 KM, 35 Miles).

What to Wear in Dayton in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Dayton 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

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 Dayton's climate page.

More climate data for Dayton

Temperature Rainfall Sunshine Humidity

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