Dave can be called for that determination at 781-2301.
The only disadvantage of either day is crowd levels, said to be high in July, forcing some parking down on the road, Patton Road.
The Winery offers free 1 oz wine tastings of 4 wine selections ( along with questionnaires to complete ), bottle-only wine purchases for outside use on deck bistro seating ( bring your own wine glasses and opener ), lawn-side picnic tables ( bring your own picnic lunch and other non-alcoholic beverages ) and Jazz music in the courtyard from 4pm to 8pm on Saturday ( bring your own seating ).
Winery hours are 11am to 9pm. No pets or outside alcoholic beverages allowed. No reservations are taken. They suggest arriving by 2pm for Jazz.
Some shade relief from the sun should be available on the hillside beyond the picnic tables, but the jazz-on-the-courtyard is open to the sky.