Friday, January 1, 2027Castro Valley, CA
Brazen New Year's Eve
3 events
- NYE HALF MARATHONHalfRoadStarts 8:30 AM
- NYE 10K10KRoadStarts 8:55 AM
- NYE 5K5KRoadStarts 9:10 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherIdeal weather · 94/100
- High / low
- 56° / 39°F
- 13° / 4°C
- Humidity
- 84%
- Dew point 41°F
- Chance of rain
- 29%
- Wind
- 6 mph
- Average
- Usually ideal weather for a half marathon.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.