Lake Chabot Trail Half Marathon

Castro Valley, CA, USA · November 7, 2026·
partly-cloudy-day55°·65° high·Calm·Dry
8
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Lake Chabot Trail Half Marathon race day weather

partly-cloudy-day
55°at start
71° high
Light
Dry
Your goal
0:00:00

Comfortable temps, big temp swing

Mild 55°F temps at gun time mean comfortable early miles without overheating risk. Temps will climb significantly to 71°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

clear-night10
clear-day10
clear-day10
partly-cloudy-day7
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partly-cloudy-day6
partly-cloudy-day5
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partly-cloudy-day6
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Pace Calculator

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About the Lake Chabot Trail Half Marathon

The half marathon is one lap of the Pink Loop, which travels around the Lake Chabot reservoir and into the surrounding hills from the Marina. About 60 percent of the course is dirt road, with the rest split between asphalt and single track. It climbs roughly 1,450 feet.

Race weekend

Saturday, November 7
8:30 AM50K (31.1 mi)8:30 AMMarathon (26.2 mi)8:30 AM30K (18.6 mi)
8:30 AMHalf Marathon (13.1 mi)
8:45 AM8K (5.0 mi)
9:00 AM5K (3.1 mi)
Area Map
Course Map

Lake Chabot Trail Half Marathon FAQ

When is the 2026 Lake Chabot Trail Half Marathon?

The 2026 Lake Chabot Trail Half Marathon will be held on Saturday November 7, 2026.

What is the time limit for the Lake Chabot Trail Half Marathon?

The time limit for the Lake Chabot Trail Half Marathon is 8.5 hours.

What will the weather be like for the 2026 Lake Chabot Trail Half Marathon?

The forecast calls for a high of 71°F and a low of 52°F with a 0% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

What is the weather usually like for the Lake Chabot Trail Half Marathon?

Over the 3 years racecast.io has race-day weather for (2023 to 2025), it averaged 53°F at the start and 60°F by a typical finish. It has not rained during race hours in any of those years.

What was the hottest Lake Chabot Trail Half Marathon?

Of the 3 years on record, 2025 was the warmest, reaching 63°F during race hours. The coldest start was 2024, at 46°F.

What was the windiest Lake Chabot Trail Half Marathon?

Of the 3 years on record, 2023 was the windiest, with wind averaging 4 mph during race hours. The calmest was 2024, at 2 mph.

Lake Chabot Trail Half Marathon weather history

Based on 3 years of data
Avg Temp
57°F
L:53° H:60°
RunScore
8
Conditions
Rain Freq
0%
0 of 3 yrs
Wind3mph
Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
clear-day
56°/63°-
7
2024
clear-day
46°/56°-
10
2023
partly-cloudy-day
58°/62°-
6