Race Day Weather
Warm finish, steady breeze
Runners will face a temperature rise from 56°F at the start to a warm 80°F by the finish. With an average humidity of 67% and a steady breeze from the SW at 9 mph, pacing adjustments will be crucial. It's advisable to start conservatively and hydrate frequently to manage the heat effectively.
Pace Calculator
The Santa Rosa Marathon offers runners a scenic journey through California's renowned wine country, featuring a flat and fast course that winds through downtown Santa Rosa, along the Santa Rosa Creek Trail, and into the picturesque vineyards of west Sonoma County. A unique highlight is the route's passage through the barrel room of DeLoach Vineyards, providing a memorable experience for participants. The event fosters a festive atmosphere with a post-race celebration at Old Courthouse Square, where runners can enjoy complimentary beverages and a bottle of wine from DeLoach Vineyards. 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 |  | 56°/78° | - | 55° | |
2024 | | 50°/85° | - | 52° | |
2023 | | 55°/82° | - | 54° | |
2022 | | 56°/77° | - | 54° | |
2021 | | 55°/70° | - | 55° | |
2019 | | 55°/85° | - | 57° | |
2018 | | 53°/65° | - | 53° | |
2017 | | 55°/93° | - | 53° | |
2016 | | 58°/76° | - | 42° | |
2015 | | 60°/73° | Light | 55° | |
2014 | | 58°/75° | - | 54° | |
2013 | | 57°/77° | - | 58° | |
2012 | | 53°/72° | - | 50° | |
2011 |  | 51°/79° | - | 53° | |
2010 | | 51°/76° | - | 49° | |
2009 | | 52°/73° | - | 52° |