Bay to Breakers
Race Day Weather
Cool conditions, light wind
Runners will face a temperature rise from 54°F at the start to 63°F by the finish, with average humidity at 73%. Wind will be light at 7 mph from the WSW, posing little impact. Runners should consider a conservative start pace to account for the humidity and stay hydrated throughout.
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Race Info
Bay To Breakers!
This historic 12k fun run through the streets of San Francisco is over 100 years in the making.
It’s a race made for everyone, so dress up, bring your friends and be cheered on every step of the way by SF’s finest crowds. Pushing boundaries and breaking records since 1912 – it’s your turn to join the party. Source
FAQ
When is the 2027 Bay to Breakers?
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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 |
|---|---|---|---|---|---|
2026 | | 56°/62° | - | 46° | |
2025 | | 56°/63° | - | 49° | |
2024 | | 56°/63° | - | 48° | |
2023 |  | 56°/62° | - | 52° |