In 139 days · Sat, Mar 20, 2027
Don't let race day sneak up
One email during race week. That's it.
When
Saturday, March 20th, 2027
Where
Chabot Space & Science Center, Oakland CA
Distances
Half · Marathon · Ultra
Typical weather
46–61°F · some rain risk
See last 10 years
On this date: rain 3 of the last 10 years
2026
60–89°F
dry
2025
43–59°F
dry
2024
44–62°F
dry
2023
45–52°F
dry
2022
41–60°F
dry
2021
44–54°F
dry
2020
41–59°F
dry
2019
48–55°F
rain
2018
49–56°F
rain
2017
51–60°F
rain
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