Weather in Philadelphia: September
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Average day temperature: | 76.4°F |
| Average night temperature: | 64.5°F | |
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Number of sunny days: | 12 days |
| Day length: | 11.8 - 13.1 hours | |
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Number of rainy days: | 3 days |
| Precipitation totals: | 2.3 in. | |
| more information | ||
14 days
forecast
forecast
| Philadelphia |
weather in
October
October
| Philadelphia |
Air temperature in September, °F
Show year:
2026
2025
2024
The highest day temperature during September of 2026 was 89°F. At the same time the lowest night temperature was 54°F. Daily and nightly averages during September were 75.7°F and 65.2°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 Philadelphia in September is 1.8 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 6.6 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: 6.7.
Best time for vacation in Philadelphia
Philadelphia on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Philadelphia
Local time: 02:56
September 30, wednesday
0300
63°F
SE
2 mph
2 mph
0600
64°F
NE
2 mph
2 mph
0900
66°F
E
2 mph
2 mph
1200
72°F
NE
5 mph
5 mph
1500
77°F
E
6 mph
6 mph
1800
73°F
E
4 mph
4 mph
2100
70°F
NE
4 mph
4 mph
October 01, thursday
0000
66°F
N
6 mph
6 mph
