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 Valleys 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.
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 the month. In 2014, the temperature hit 90 degrees or higher on 6 days of the month. The weather most evening should be ideal, and at night, you will probably want a light jacket or sweater.
Because the weather is almost ideal in October, and because the wine crush is in full swing, reservations for hotels are particularly difficult to come by if you wait until the last minute.