World Resorts USA Dover Weather

Dover weather in September

Weather in Dover: September

Average day temperature: 75.5°F
Average night temperature: 64.7°F
Number of sunny days: 14 days
Day length: 11.8 - 13.0 hours
Number of rainy days: 2 days
Precipitation totals: 1.3 in.

Air temperature in September, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
112
Day temperature   
Night temperature

The highest day temperature during September of 2024 was 83°F. At the same time the lowest night temperature was 53°F. Daily and nightly averages during September were 74.8°F and 64.9°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
47%
23%
30%

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.4
0.8
1.1
1.5
1.9
2.3
2.7
1.4
1.5
2.2
2.1
1.4
1.6
1.3
1.2
1.2
1.4
1.5
1.3
2.2
2.1
1.4
1.6
1.3
1.2
1.2

Precipitation total value in Dover in September is 1.3 in. Other months of the year show relatively similar values.

Wind speed in September, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.9
3.7
5.6
7.5
9.3
11.2
13.1
9.5
9.3
8.4
7.2
6.8
8.5
9.4
10.4
10.9
10.3
10.4
9.5
9.3
8.4
8.4
7.2
6.8
8.5
9.4
10.4
10.9
10.3
10.4

The average wind speed value in September is 8.4 mph It makes September one of the least windy months of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.6
3.2
4.8
6.4
8.0
9.6
11.2
5.0
6.9
7.2
8.0
8.5
9.3
7.5
6.9
6.9
5.6
5.5
5.0
6.9
7.2
7.6
8.0
8.5
9.3
7.5
6.9
6.9
5.6
5.5

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: 7.6.

Best time for vacation in Dover

Sunniest months:
November 16 days
October 15 days
September 14 days
Warmest months:
July 84.4 °F
August 82.0 °F
June 78.6 °F
Coldest months:
January 40.3 °F
February 43.8 °F
December 45.4 °F
Rainiest months:
August 5 days
July 5 days
March 3 days
Windiest months:
March 10.9 mph
April 10.4 mph
January 10.4 mph

Dover on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+45°F
+54°F
+75°F
+75°F
+73°F
+61°F
+73°F
+46°F
+68°F
+59°F
+54°F
+64°F
+66°F
+68°F
+54°F
24 Hours Forecast
Dover
Local time: 00:10
April 14, monday
0300
46°F
SE
5 mph
0600
46°F
SE
4 mph
0900
52°F
N
3 mph
1200
61°F
N
6 mph
1500
63°F
N
6 mph
1800
63°F
NE
6 mph
2100
59°F
N
3 mph
April 15, tuesday
0000
57°F
N
6 mph
Units of measurement: °C / °F