Philadelphia experiences a humid subtropical climate, resulting in distinct seasons with small temperature fluctuations. Summers in the city are marked by high temperatures, often reaching 40 degrees. If you struggle with intense heat, it's worth considering whether visiting Philadelphia during this time is advisable.
The most merciless in terms of heat are July and August. Although the average temperature during this period is considered to be 24-25ºC, at this time of year the weather in Philadelphia for 3 days or more can shock with temperatures of 40-42ºC.
In winter, the weather forecast in Philadelphia is also capable of surprising the air temperature. January and February are considered the coldest months, when the weather in Philadelphia for 5 days can surprise with frosts below -20ºC. However, this does not happen every year. On average, the weather in Philadelphia for a week stays at -2-3ºC.
But spring and fall are mild and pleasant in the city. These are the seasons when tourists most often decide, "I'm going to Philadelphia!" The average temperature stays at 10-14ºC, so walking around the city promises to be comfortable. However, it's not the cheapest time to visit Philadelphia.
When it comes to rainfall, it's hard to say when it's best to go to Philadelphia - it's almost uniform year-round and fairly heavy.
