The best time to go to Peterlee is during the late spring and summer months, from May to September, when the weather is generally mildest and most conducive to enjoying the local area.During this period, you'll find the most comfortable temperatures for exploring the Durham Heritage Coast or visiting nearby attractions like Durham Cathedral. The longer daylight hours also allow for more extensive sightseeing and outdoor activities, such as walks along the coastline or through the local parks.For those planning to attend local events or festivals, late spring and summer often host community gatherings and outdoor markets, offering a chance to experience the local culture.