Temperatures in August
It's hot in August in Philadelphia with an average temperature of 30°C. Temperatures this month range from a low of 28°C to a high of 32°C. At night, you can expect temperatures between 20°C and 23°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Philadelphia in August. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of August
The month of August starts in Philadelphia with hot temperatures, averaging around 31°C during the day and nights close to 22°C. You can expect regular precipitation, but there’s also a chance for some sunny days in the first days of the month.
Mid-August
By mid-August, the average daytime temperature stays the same at 31°C, with nights close to 23°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days.
End of August
By the end of August, the average daytime temperature in Philadelphia will be around 30°C, with nights close to 21°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
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Precipitation in August
In August, there is an average of 172 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 30% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in August for Philadelphia. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Philadelphia in August |
London | ||
|---|---|---|---|
 Average Temperature |
30°C | 22°C | |
 High Temp |
32°C | 24°C | |
| Low Temp |
28°C | 19°C | |
 Total Precipitation |
172 mm | 60 mm | |
| Rainy Days |
9 days | 10 days | |
July
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is August a good time to visit Philadelphia?
After some sun? Then August isn’t the best time to be in Philadelphia. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Philadelphia in August
With 37°C, Philadelphia hit the highest temperature in the last 10 years in August 2022. The lowest daytime temperature in this month was 18°C in 2017. The extreme night temperatures ranged from a low of 14°C to a high of 28°C.
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Daily Temperature in August in Philadelphia
This chart shows the average daily temperatures, both day and night, for each day in August in Philadelphia, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in August in Philadelphia
The chart below shows the average daily precipitation in August for Philadelphia, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for August, you can expect around 9 days of rain in Philadelphia.
Daily UV Index in August in Philadelphia
This chart shows the average daily UV index in August in Philadelphia, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Philadelphia Over the Years
This chart shows the average temperature in August in Philadelphia, measured in degrees Celsius, over the past years.
Total Precipitation in August in Philadelphia Over the Years
This chart shows the average precipitation in August in Philadelphia, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in August for Philadelphia
Click on a specific day in August for detailed info on the typical weather on that day in Philadelphia. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Philadelphia
Have you been to Philadelphia in August?
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Average Weather in Philadelphia by Month
Click on a month below to see detailed weather info for Philadelphia. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Philadelphia for all months at once
