Welcome to Napa Valley. Spring/summer = sun dress with a cardigan and sandals. Rainfall: Around 4 inches and 8 to 9 rainy days per month. The best time to visit Napa is August through October or March through May. No precipitation throughout the week. . Day Details. Highs in the upper 70s to mid 90s. Monthly: 1981-2010 normals History: 2008-2019
Partly cloudy throughout the day.

Daily highs are in the upper 70s to 80s and lows in the mid-50s.

Napa Valley weather is similar to the Mediterranean, making it ideal for people as well as the grapes. Stroll through the vineyards, talk with the winemaker, or sip award-winning wines with dramatic views of the valley floor. Winter highs are usually in the comfortable 60s, with with lows occasionally just below freezing . Night Details. What to pack and wear in Napa Valley. More than 400 wineries dot the fertile soils of Napa Valley, one of the world’s premier wine regions and famous for its prized Cabernet Sauvignon. Sunny. Lows in the upper 40s to lower 60s. Clear. Napa Valley Weather in May: As the last month of spring, May brings warmer temperatures to Napa Valley. Although Napa Valley claims a year-round average temperature of 70° F, you can expect seasonal fluctuations as well as dramatic swings throughout the day. Our ideal climate creates the perfect place to grow wine grapes. Hourly. Daylight: 10 to 11 hours. Late fall and winter, sometimes called "Cabernet Season" in The Napa Valley, is a great time to visit and savor the Valley's attractions at an unhurried pace. Contrary to what you find in other places, the north end of Napa Valley is its hottest part in summer, thanks to the cooling effects of the San Francisco Bay at the south end. Northwest winds 5 to 15 mph. Daytime highs can range from the 50s in January to the 90s in July. In any year, the weather might be very different than the average. . Average rainfall decreases to 1 inch (21 mm).
Defined by mountain ranges and influenced by its proximity to the Pacific Ocean, the Napa Valley enjoys a dry Mediterranean climate perfectly suited to the growing of fine wine grapes. perfect fireplace weather. Napa Weather History for the Previous 24 Hours Show weather for: Previous 24 hours June 15, 2020 June 14, 2020 June 13, 2020 June 12, 2020 June 11, 2020 June 10, 2020 June 9, 2020 June 8, 2020 June 7, 2020 June 6, 2020 June 5, 2020 June 4, 2020 June 3, 2020 June 2, 2020 June 1, 2020 May 31, 2020 Check the forecast a few times before you go to get a better sense of what to expect during your visit. Yesterday Growing Degree Days Weather Observation Maps Powdery Mildew Satellite/Radar Miscellaneous.

Fall/Winter = denim, sweater, scarf and boots. June 11, 2020: Napa Valley weather forecast for now and the week ahead — Mostly cloudy for the hour. Denim is acceptable year round, if it is a fancier scene wear dark denim. Station Data. Despite the increase in temperature, the low temperature average and high temperature averages stay mild at 46°F (8°C) and 73°F (23°C). Always bring a light jacket for the nighttime breeze from the bay. Northern Napa County Map Map 15 Minute Data. Napa County Weather Data Links.

Average Temperatures in Napa Valley. Monthly averages Napa Longitude: -122.287, Latitude: 38.2975 Average weather Napa, CA - 94558. North winds 10 to 20 mph.