Sonoma Plaza Amphitheater Posted on June 1, 2022 Location No. 1 The PlazaSonomaCA95476 Next Event Sonoma Sundays in the Plaza with Music In Place - 09/21/2025 - 2:00 pm - 5:00 pm Upcoming Events Sonoma Sundays in the Plaza with Music In Place - 09/21/2025 - 2:00 pm - 5:00 pmSonoma Sundays in the Plaza with Music In Place - 09/28/2025 - 2:00 pm - 5:00 pm