Average temperatures, rainfall and packing tips for Philadelphia, United States in May
May in Philadelphia is typically warm, with average daytime highs around 24°C and nights near 13°C. Temperature-wise it sits mid-range for Philadelphia (the 5th warmest month).
May is one of the wetter months in Philadelphia, with around 86 mm of rain - plan around showers.
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In May, Philadelphia averages a daytime high of about 24°C and a night-time low of around 13°C, based on recent historical data.
May is one of the wetter months in Philadelphia, with around 86 mm of rain - plan around showers.
May is one of the most comfortable months to visit Philadelphia - daytime temperatures sit in a pleasant range and it's a good pick for sightseeing and time outdoors.