The peak season in Allentown runs from May to July, making it an ideal time for those looking to immerse themselves in vibrant local festivals and outdoor activities. July, in particular, is the most popular month, where the warm weather creates a great backdrop for exploring the area's parks, markets, and seasonal events.During this time, visitors can enjoy temperatures averaging between 20 to 30 degrees Celsius, ideal for outdoor adventures like hiking and biking. The lively option, filled with fellow travellers and locals, enhances the overall experience, making it a fantastic choice for those seeking an engaging holiday.If you're considering a visit on a budget, December offers a unique charm with its festive decorations and seasonal events, while also being less crowded. This quieter month allows for a more relaxed exploration of Allentown and its nearby attractions, providing a different yet enjoyable experience.