Bay to Breakers

San Francisco, CA, USA · May 17, 2026
partly-cloudy-day56°·62° high·Light·Dry
9
Register

Race Day Weather

partly-cloudy-day
56°at start
64° high
Breezy
Dry

Mild conditions, steady pace

Runners will face temperatures starting at 55°F and rising to 62°F. With an average humidity of 73% and a light wind at 7 mph, conditions are favorable for maintaining pace. Runners should stay hydrated and can maintain their planned pace throughout, as the weather will remain stable.

partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9

Get forecast alerts for Bay to Breakers

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

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

Area Map

Course Map

FAQ

When is the 2026 Bay to Breakers?

The 2026 Bay to Breakers will be held on Sunday May 17, 2026.

What is the time limit for the Bay to Breakers?

The time limit for the Bay to Breakers is 3 hours.

What will the weather be like for the 2026 Bay to Breakers?

The forecast calls for a high of 67°F and a low of 52°F with a 5% chance of rain.

Historical Weather

Based on 3 years of data
Avg Temp
62°F
L:56° H:62°
RunScore
9
Conditions
Rain Freq
0%
0 of 3 yrs
Wind4mph
Dew50°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
partly-cloudy-day
56°/63°-
9
2024
partly-cloudy-day
56°/63°-
9
2023
cloudy
56°/62°-
9