Napa Valley Trail Marathon
Race Day Weather
Warm up, steady winds
Runners will face a temperature rise from 61°F at the start to a peak of 82°F. Winds will be light at 5 mph from the SE, creating minimal impact. With humidity at 46% and comfortable dew point, it's advisable to start conservatively and adjust pace as temperatures climb, ensuring adequate hydration throughout.
Pace Calculator
Babbling streams will be your soundtrack as you challenge yourself on the lush single-track within Bothe-Napa Valley State Park. The course is a bit challenging with the hills, streams and rocks - which makes it all the more exciting and rewarding. This state park is a local treasure that is untapped by tourists and located just minutes from the area's great restaurants and wineries. The event is limited to 300 participants and sells out every year so don't wait too long to register! Source
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | | 48°/62° | - | 50° | |
2024 |  | 46°/57° | Light | 48° | |
2023 |  | 40°/61° | - | 44° |