The best time to visit Napa is August through October or March through May. Highs in the upper 70s to mid 90s. 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. Denim is acceptable year round, if it is a fancier scene wear dark denim. Average rainfall decreases to 1 inch (21 mm). Monthly averages Napa Longitude: -122.287, Latitude: 38.2975 Average weather Napa, CA - 94558. Welcome to Napa Valley. Clear. Spring/summer = sun dress with a cardigan and sandals. Sunny. Night Details. Daylight: 10 to 11 hours. Yesterday Growing Degree Days Weather Observation Maps Powdery Mildew Satellite/Radar Miscellaneous. Napa Valley Weather in May: As the last month of spring, May brings warmer temperatures to Napa Valley. Stroll through the vineyards, talk with the winemaker, or sip award-winning wines with dramatic views of the valley floor. 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. Partly cloudy throughout the day. 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. Hourly. Lows in the upper 40s to lower 60s. Napa County Weather Data Links. Our ideal climate creates the perfect place to grow wine grapes. Rainfall: Around 4 inches and 8 to 9 rainy days per month. Daily highs are in the upper 70s to 80s and lows in the mid-50s. Monthly: 1981-2010 normals History: 2008-2019
Fall/Winter = denim, sweater, scarf and boots. 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 . 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. 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). Northern Napa County Map Map 15 Minute Data. What to pack and wear in 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. No precipitation throughout the week. Station Data.
North winds 10 to 20 mph. Average Temperatures in Napa Valley. Day Details. . Winter highs are usually in the comfortable 60s, with with lows occasionally just below freezing . Always bring a light jacket for the nighttime breeze from the bay. June 11, 2020: Napa Valley weather forecast for now and the week ahead — Mostly cloudy for the hour. 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. Check the forecast a few times before you go to get a better sense of what to expect during your visit. Napa Valley weather is similar to the Mediterranean, making it ideal for people as well as the grapes.