The best time to visit Union, New Jersey, is during the shoulder seasons of spring (April to May) and fall (September to October), when the weather is pleasant for outdoor activities and exploring.During these months, the temperatures are mild, typically ranging from the mid-50s to the low 70s Fahrenheit, making it comfortable for walking and sightseeing. You'll find less humidity compared to summer and fewer crowds than peak travel times in some areas. This period is ideal for travelers who appreciate comfortable weather for exploring parks or attending local events without the intensity of summer heat or winter cold.Summer (June to August) is also a popular time, especially for families, due to school holidays and a wider array of outdoor events. While temperatures can be warmer and humidity higher, there are numerous local festivals, farmers' markets, and outdoor concerts to enjoy. Many local attractions extend their hours during the summer, offering more opportunities for daytime and evening activities.Winter (November to March) can be cold with potential for snow, which might appeal to those who enjoy winter sports or a cozy, festive holiday experience. While some outdoor activities might be limited, indoor attractions like museums and entertainment venues remain open.