World Resorts USA Dover Weather

Dover weather in September

Weather in Dover: September

Average day temperature: 66.8°F
Average night temperature: 53.3°F
Number of sunny days: 11 days
Day length: 11.8 - 13.2 hours
Number of rainy days: 2 days
Precipitation totals: 1.1 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 75°F. At the same time the lowest night temperature was 38°F. Daily and nightly averages during September were 67.8°F and 53.5°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in September is almost equal.

Precipitation total in September, in.

Precipitation total value in Dover in September is 1.1 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 4.7 mph It makes September one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 6.8.

Best time for vacation in Dover

Sunniest months:
October 11 days
September 11 days
November 10 days
Warmest months:
July 75.7 °F
August 73.1 °F
June 70.4 °F
Coldest months:
January 25.7 °F
February 27.6 °F
December 31.7 °F
Rainiest months:
July 5 days
August 4 days
June 3 days
Windiest months:
March 7.7 mph
April 7.4 mph
November 7.4 mph

Dover on a weather map

Dover
+28°F
N 4 mph
Feels like: +25°F
Precip.: 0%
Places in USA:
Name
°F
+37°F
+72°F
+72°F
+68°F
+59°F
+70°F
+72°F
+68°F
+34°F
+61°F
+55°F
+66°F
+66°F
+63°F
+50°F
24 Hours Forecast
Dover
Local time: 06:40
April 09, thursday
0900
37°F
N
6 mph
1200
48°F
N
10 mph
1500
55°F
N
12 mph
1800
52°F
N
9 mph
2100
41°F
N
5 mph
April 10, friday
0000
37°F
NE
5 mph
0300
37°F
NE
4 mph
0600
39°F
NE
4 mph
Units of measurement: °C / °F