Measurements:
°C
°F
Dover
86°F
E 6 mph
Feels like: 88°F
Precip: 3%
World Resorts USA Dover Weather September Weather in Dover

Dover Weather: September

Average Day Temperature: 68.7°F
Average Night Temperature: 53.7°F
Number of Sunny Days: 11 days
Sunshine Hours: 11.8 - 13.2 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.1 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 78°F. The lowest night temperature was 37°F. The average values for day and night temperatures during September were 69.8°F и 53.9°F respectivly.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Dover is 1.1 in. It makes september one of the least rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 4.7 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Dover in September is 7.0 hours.

Best Time to Visit Dover
The most sunny months:
October 11 days
July 11 days
September 11 days
The most warm months:
July 78.7 °F
August 75.6 °F
June 73.0 °F
The most cold months:
January 23.0 °F
February 25.1 °F
December 29.7 °F
The most rainy months:
July 5 days
August 4 days
October 3 days
The most windy months:
March 7 mph
November 7 mph
April 7 mph

Dover on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +82
Hawaii +82
Houston +106
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Dover
Local time: 16:14
05 aug, wednesday
1800 82°F
E
4 mph
2100 70°F
E
2 mph
06 aug, thursday
0000 68°F
NE
3 mph
0300 68°F
E
2 mph
0600 68°F
E
2 mph
0900 78°F
NE
2 mph
1200 88°F
NE
4 mph
1500 86°F
E
6 mph