Napa Valley Marathon
Race Day Weather
Cool start, gradual warming trend
Runners will face a cool start at 47°F, gradually warming to 64°F. With light winds from the WNW at 7 mph, the first half offers a tailwind, providing some assistance through miles 1-6. As temperatures rise, runners should focus on hydration and consider pacing conservatively to manage the heat, especially during the crosswind sections from miles 4-6 and 17-27.
The finish is 23 miles from the start, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 48° and finish around 11:25 AM in 58°.
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Race Info
The Napa Valley Marathon is an annual marathon, half marathon, and 5K in Napa County, California. The USATF-certified marathon course begins in Calistoga at the northwestern tip of Napa County, and then traverses the Silverado Trail, ending in downtown Napa. The race's course is primarily rolling hills or flat as it moves through rural California Wine Country. The Napa Valley Marathon has been run in March since 1979, accepts only about 3,000 runners, and is widely considered one of the most scenic marathons in the United States. The men's and women's winners of the race win their weight in wine. Wikipedia
