World Resorts USA Philadelphia Weather

Philadelphia weather in August

Weather in Philadelphia: August

Average day temperature: 84.0°F
Average night temperature: 70.6°F
Number of sunny days: 14 days
Day length: 13.1 - 14.2 hours
Number of rainy days: 5 days
Precipitation totals: 2.7 in.

Air temperature in August, °F

Show year:
2026
2025
2024

The highest day temperature during August of 2026 was 95°F. At the same time the lowest night temperature was 62°F. Daily and nightly averages during August were 85.1°F and 70.7°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in August, in.

Precipitation total value in Philadelphia in August is 2.4 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 6.2 mph It makes August 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 August is: 8.4.

Best time for vacation in Philadelphia

Sunniest months:
June 14 days
July 14 days
August 14 days
Warmest months:
July 86.9 °F
August 84.0 °F
June 80.3 °F
Coldest months:
January 35.9 °F
February 39.2 °F
December 42.3 °F
Rainiest months:
August 5 days
June 5 days
July 5 days
Windiest months:
March 9.2 mph
April 9.1 mph
January 8.7 mph

Philadelphia on a weather map

Philadelphia
+84°F
NE 10 mph
Feels like: +84°F
Precip.: 2%
Places in USA:
Name
°F
+73°F
+90°F
+82°F
+97°F
+97°F
+88°F
+70°F
+82°F
+86°F
+81°F
+77°F
+91°F
+86°F
+88°F
+75°F
24 Hours Forecast
Philadelphia
Local time: 17:44
September 09, wednesday
1800
84°F
NE
10 mph
2100
77°F
N
11 mph
September 10, thursday
0000
73°F
NE
11 mph
0300
72°F
NE
11 mph
0600
72°F
NE
8 mph
0900
70°F
NE
6 mph
1200
72°F
E
6 mph
1500
75°F
E
9 mph
Units of measurement: °C / °F