Philadelphia
August
Weather in Philadelphia for August 2025
Your guide to Philadelphia weather in August - trends and predictions
In general, the average temperature in Philadelphia at the beginning of August is 30.3 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 29 °F by the end of August.
Expect significant rainfall in Philadelphia during August, with an average of 17 rainy days.
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14
Dry days
17
Rainy days
0
Snow days
29°/20°
Temperatures
16 km/h
Avg max wind
65 %
Avg humidity
Philadelphia in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  31° | 2  30° | 3  31° | ||||
| 4 29° | 5  32° | 6 32° | 7  27° | 8 27° | 9 29° | 10 28° |
| 11  29° | 12 30° | 13 30° | 14 30° | 15 31° | 16 31° | 17 29° |
| 18 28° | 19 28° | 20 27° | 21 28° | 22 26° | 23 27° | 24 26° |
| 25 29° | 26 32° | 27 32° | 28 30° | 29 24° | 30 29° | 31 27° |
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Temperatures trend during August in Philadelphia
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 | Sunny | 31° /21° | 0.8 mm | 8 | |
| Aug. 2 | Partly cloudy | 30° /21° | 0.5 mm | 8 | |
| Aug. 3 | Patchy rain possible | 31° /21° | 3.3 mm | 7 | |
| Aug. 4 | Patchy rain possible | 29° /21° | 7.7 mm | 7 | |
| Aug. 5 | Overcast | 32° /21° | 0.3 mm | 8 | |
| Aug. 6 | Overcast | 32° /21° | 15.7 mm | 7 | |
| Aug. 7 | Moderate or heavy rain shower | 27° /19° | 12.5 mm | 6 | |
| Aug. 8 | Patchy rain possible | 27° /20° | 6.1 mm | 6 | |
| Aug. 9 | Overcast | 29° /20° | 8.8 mm | 7 | |
| Aug. 10 | Moderate or heavy rain shower | 28° /21° | 8.1 mm | 6 | |
| Aug. 11 | Cloudy | 29° /19° | 0 mm | 7 | |
| Aug. 12 | Moderate rain at times | 30° /19° | 0.4 mm | 7 | |
| Aug. 13 | Overcast | 30° /21° | 0.1 mm | 7 | |
| Aug. 14 | Patchy rain possible | 30° /20° | 1.2 mm | 7 | |
| Aug. 15 | Patchy rain possible | 31° /22° | 6.4 mm | 8 | |
| Aug. 16 | Patchy rain possible | 31° /21° | 2.2 mm | 8 | |
| Aug. 17 | Patchy rain possible | 29° /21° | 0.6 mm | 7 | |
| Aug. 18 | Moderate or heavy rain shower | 28° /19° | 17.1 mm | 6 | |
| Aug. 19 | Cloudy | 28° /18° | 0.7 mm | 6 | |
| Aug. 20 | Partly cloudy | 27° /16° | 0 mm | 7 | |
| Aug. 21 | Overcast | 28° /17° | 0 mm | 7 | |
| Aug. 22 | Sunny | 26° /17° | 0 mm | 7 | |
| Aug. 23 | Patchy rain possible | 27° /17° | 0.3 mm | 7 | |
| Aug. 24 | Moderate or heavy rain shower | 26° /18° | 12.5 mm | 7 | |
| Aug. 25 | Light rain shower | 29° /19° | 13.8 mm | 7 | |
| Aug. 26 | Light rain shower | 32° /20° | 0.3 mm | 8 | |
| Aug. 27 | Partly cloudy | 32° /20° | 0 mm | 8 | |
| Aug. 28 | Patchy rain possible | 30° /21° | 0.9 mm | 8 | |
| Aug. 29 | Light rain shower | 24° /19° | 9.4 mm | 5 | |
| Aug. 30 | Light rain shower | 29° /20° | 2.4 mm | 7 | |
| Aug. 31 | Overcast | 27° /18° | 0.2 mm | 6 | |
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Important Notice
Our weather forecast for Philadelphia in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Philadelphia forecast closer to your planned date for the most up-to-date weather information.
Philadelphia in August - FAQ
What are the expected maximum and minimum temperatures in Philadelphia during August?
During August, expect a variety of temperatures with highs around 29° and lows near 20°, suitable for diverse activities and preferences.
How much rainfall should be expected in Philadelphia during August?
Significant rainfall exceeding 145.7 mm is expected in Philadelphia during August, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Philadelphia during August?
The average wind speed in Philadelphia during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
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