San Diego International Airport is the closet airport, approximately 64 miles.
Europa has limited rooms located onsite. Temecula has plenty AirBnB's and major hotel chains located near the winery.
Expect mid 70's during the day and mid 50's in the evening.
Semi-formal admired
From I-15, take the Rancho California Road exit. Pass the main entrance, then turn left onto La Serena Way to access the Vienza parking lot—this is the closest parking to the venue.