Normal weather for Dayton in September
It's hot in September in Dayton with an average temperature of 33°C. Temperatures this month range from a low of 30°C to a high of 35°C. At night, you can expect temperatures between 21°C and 24°C.
In September, there is an average of 277 mm of precipitation, spread over 15 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Dayton in September |
London | ||
|---|---|---|---|
 Average Temperature |
33°C | 20°C | |
 High Temp |
35°C | 22°C | |
| Low Temp |
30°C | 17°C | |
 Total Precipitation |
277 mm | 44 mm | |
| Rainy Days |
15 days | 8 days | |
Start of September
The month of September starts in Dayton with hot temperatures, averaging around 35°C during the day and nights close to 24°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature drops to around 33°C, with nights close to 24°C. The chance of precipitation is high during this period. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of September
By the end of September, the average daytime temperature in Dayton will be around 32°C, with nights close to 23°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Discover cheap trips to Dayton 
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Dayton?
After some sun? Then September isn’t the best time to be in Dayton. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in Dayton runs from June to November.
Temperature records for Dayton in September
With 40°C, Dayton hit the highest temperature in the last 10 years in September 2023. The lowest daytime temperature in this month was 23°C in 2020. The extreme night temperatures ranged from a low of 11°C to a high of 28°C.
Check out the climate of Dayton for all months and discover the best travel time
August
Plan your next holiday
Don’t miss the best holiday deals for Dayton and see what our partners have for you.
Daily Temperature in September in Dayton
This chart shows the average daily temperatures, both day and night, for each day in September in Dayton, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Dayton
The chart below shows the average daily precipitation in September for Dayton, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 15 days of rain in Dayton.
Daily UV Index in September in Dayton
This chart shows the average daily UV index in September in Dayton, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Dayton Over the Years
This chart shows the average temperature in September in Dayton, measured in degrees Celsius, over the past years.
Total Precipitation in September in Dayton Over the Years
This chart shows the average precipitation in September in Dayton, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Dayton
Click on a specific day in September for detailed info on the typical weather on that day in Dayton. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Dayton
Have you been to Dayton in September?
Share your weather experience in September in Dayton.
Average Weather in Dayton by Month
Click on a month below to see detailed weather info for Dayton. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
