July is the most popular time to visit Costa Mesa, California, making it an ideal month for holiday rentals. This period falls within the peak season from May to July, where the city buzzes with vibrant energy and numerous events. Visitors flock to enjoy the beautiful weather, with average temperatures typically ranging from 18 to 28 degrees Celsius, superb for outdoor activities and beach outings.During these summer months, Costa Mesa hosts a variety of festivals and events, including the famed OC Fair, providing ample opportunities for entertainment and cultural experiences. With a warm and inviting atmosphere, this is a time when families, couples, and friends come together to explore the local attractions, including the nearby beaches and shopping districts.For those looking for a more budget-friendly option, consider visiting in October. This month offers a more tranquil experience, allowing you to soak in the pleasant weather while enjoying the city's offerings without the summer crowds. It's a wonderful time for leisurely strolls in the parks or exploring the art scene with fewer tourists around.Ultimately, your choice of when to visit Costa Mesa will depend on whether you're seeking the lively, bustling environment of peak season or the more relaxed, intimate experience available during the shoulder months.