October in the Napa Valley is perhaps the most beautiful time of year to come to wine country. Visitors from around the world plan their vacations to coincide with the marvelous tapestry of color that adorns the Napa Valley in autumn and the famous crush of Napa Valley’s famous wine.
The average October temperature in Calistoga is 62 degrees, with an average high of 79, and an average low of 46 degrees. The average rainfall in Calistoga for October is 2.1 inches. It is hard to think of more perfect weather conditions.
Don’t be surprised if you experience an Indian summer during your October visit to Napa Valley. While average high temperatures have cooled down from those in August, we usually have a period of very warm weather during October. In 2014, for example, the temperature hit 90 degrees or higher on 6 days of the month. The weather most evenings should be ideal, and at night, you will probably want a light jacket or sweater.