No matter what time of year you choose to visit the Napa Valley, you will find beautiful Mediterranean weather. There is no better climate to enjoy countless activities. Throughout the Napa Valley, and especially in Calistoga, you will find al fresco dining, wineries, hiking, shopping, and rejuvenating spa treatments.
Spring mornings and evenings are wonderfully crisp, while the days offer pleasant temperatures and abundant sunshine (rainy season is normally over by April 15th). The average spring temperature in Calistoga is 72 degrees, making it great for a weekend getaway.
Summer warms the valley with average daytime temperatures in the 90’s, with very temperate nights. While San Francisco is experiencing foggy days, the short drive to the Napa Valley will reward you with a completely different environment.
Fall is when the leaves change and Napa Valley is full of color. Summerlike temperatures warm the day, while the nights start to get cooler. This is possibly the most popular time to visit the Napa Valley, as it is harvest time for the local wineries.
Winter in the Napa Valley is mild in comparison to most other places. Temperatures in the 70’s are not unheard of, while the lows hardly ever go below freezing. While there is rain, there are also long periods of sunshine.