The best time of year to visit the picturesque wineries of Sonoita is summer or early fall around the time of harvest. Temperatures in the wine country are generally considerably cooler, so summer temperatures will not be an issue. This is also the ideal time to take up wine tasting tours and to revel in the beauty of this place. Just keep in mind that being one of the top ten wine trails in USA, Sonoita can remain bit crowded during this time. July can be considered as the best time to visit Sonoita as the HarvestFest takes place during this month and you will get the chance to participate in the activities such as grape stomping competitions, horse-drawn vineyard tours, along with tastings and pairings.