Miwok 100K
Race Day Weather
Cool conditions, steady pace recommended
Runners will face temperatures ranging from 54°F to 62°F, with high humidity at 87%. Winds will be a light headwind throughout at 13 mph, with gusts up to 17 mph. Given the humidity, pacing adjustments are advised, particularly in the latter stages of the race.
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Race Info
The Miwok 100K Trail Race is a 62.2 miles (100.1 km) long ultramarathon that takes place annually in southern Marin County, California, typically on the first Saturday of May.
The race starts and ends in the town of Stinson Beach. Almost all of the course is on fire roads and single-track trails, first to the south of Stinson Beach and then to the north. Runners climb a total of approximately 11,800 feet (3,600 m). Wikipedia
FAQ
When is the 2026 Miwok 100K?
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Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 | | 52°/64° | - | 48° | |
2024 | | 49°/56° | Light | 48° | |
2023 | | 53°/62° | Light | 49° |