May is an exceptional time to visit Tarlee, South Australia, as it marks the beginning of the peak season, which runs from September to November. During May, you'll experience mild autumn temperatures, typically ranging from 10 to 20 degrees Celsius, making it ideal for outdoor activities and exploring the picturesque landscapes of the Clare Valley.This season attracts visitors eager to enjoy the region's renowned wineries, beautiful walking trails, and local produce markets. The comfortable weather during this time allows for leisurely strolls through vineyards and delightful picnics in the countryside, all while soaking in the stunning autumn colours.For those looking for a more budget-friendly experience, consider planning your trip in January, when the tourist crowds are thinner. Visiting during this time can provide a unique opportunity to experience Tarlee's charm in a quieter setting, and you might even find some great deals on holiday rentals.Ultimately, your choice of when to visit Tarlee should reflect your preferences for either the vibrant setting of the peak season or the serene charm of the quieter months.