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Pennsylvania weather in August 2025
Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Pennsylvania in August. Check more long-term weather averages for Pennsylvania in August before you book your next holiday to Pennsylvania in 2025/2026.
- 29°C max day temperature
29 - 8 hours of sunshine per day
- 9 days with some rainfall
9 - 19°C min night temperature
19 - 14 hours of daylight per day
14 - Moderate heat & humidity
M - 102 mm of monthly rainfall
102 - 8 (Very High) UV index
8
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The August weather guide for Pennsylvania (Philadelphia) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Top Pennsylvania destinations
Below are average maximum temperatures at popular countries, regions and places in Pennsylvania in August. Select a holiday destination to see more weather parameters.
All Pennsylvania destinations
- Allentown
- Du Bois
- Erie
- Gettysburg
- Harrisburg
- Lancaster
- Lewisburg
- Ohiopyle
- Philadelphia
- Pittsburgh
- Stroudsburg
- Warren
- Wilkes-Barre
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How hot is it in Pennsylvania in August?
Daytime temperatures usually reach 29°C in Philadelphia, Pennsylvania in August with moderate heat and humidity, falling to 19°C at night.
How sunny is it in Pennsylvania in August?
There are normally 8 hours of bright sunshine each day in Philadelphia, Pennsylvania in August - that's 61% of daylight hours.
Does it rain in Pennsylvania in August?
There are usually 9 days with some rain in Philadelphia, Pennsylvania in August and the average monthly rainfall is 102mm.
What is the chance of a hurricane in Pennsylvania in August?
On average less than 1 day in August in Philadelphia, Pennsylvania is likely to be affected by the passage of one or more tropical storms.
Pennsylvania August sunrise & sunset times
Browse the sunrise and sunset times for Pennsylvania in August 2025. Select a month to view Pennsylvania sunrise and sunset times for the next 12 months. The Pennsylvania sunrise and sunset times shown below are for Philadelphia.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 04:59 | 19:14 |
| Saturday, 16th August 2025 | 05:14 | 18:55 |
| Sunday, 31st August 2025 | 05:28 | 18:33 |
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