Napa Valley Trail Marathon
Napa Valley Trail Marathon race day weather
Cool morning, warming afternoon
Runners will face a temperature increase from 53°F at the start to 61°F by midday. With light southwest winds at 7 mph and 61% humidity, maintaining hydration is key. As conditions warm, participants should consider adjusting their pace to stay comfortable, especially in the later stages of the race.
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About the Napa Valley Trail Marathon
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
Race weekend
Napa Valley Trail Marathon FAQ
When is the 2027 Napa Valley Trail Marathon?
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Napa Valley Trail Marathon weather history
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2026 |  | 61°/80° | - | 54° | |
2025 | | 53°/59° | - | 51° | |
2024 |  | 50°/55° | Light | 48° | |
2023 | | 47°/60° | - | 45° |