Lake Chabot Trail 30K

Castro Valley, CA, USA · November 7, 2026·
partly-cloudy-day55°·68° high·Calm·Dry
7
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Lake Chabot Trail 30K 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.

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Pace Calculator

18.6mi
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About the Lake Chabot Trail 30K

The 30K combines the Pink Loop used by the half marathon with the shorter Yellow Loop, all within Lake Chabot Regional Park in Castro Valley. It starts and finishes at the Marina. The route is about half dirt road and the rest mostly asphalt and single track, with roughly 1,830 feet of climbing.

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 30K FAQ

When is the 2026 Lake Chabot Trail 30K?

The 2026 Lake Chabot Trail 30K will be held on Saturday November 7, 2026.

What is the time limit for the Lake Chabot Trail 30K?

The time limit for the Lake Chabot Trail 30K is 8.5 hours.

What will the weather be like for the 2026 Lake Chabot Trail 30K?

The forecast calls for a high of 71°F and a low of 52°F with a 0% chance of rain.

What is the weather usually like for the Lake Chabot Trail 30K?

Over the 3 years racecast.io has race-day weather for (2023 to 2025), it averaged 53°F at the start and 62°F by a typical finish. It has not rained during race hours in any of those years.

What was the hottest Lake Chabot Trail 30K?

Of the 3 years on record, 2025 was the warmest, reaching 66°F during race hours. The coldest start was 2024, at 46°F.

What was the windiest Lake Chabot Trail 30K?

Of the 3 years on record, 2025 was the windiest, with wind averaging 4 mph during race hours. The calmest was 2023, at 3 mph.

Lake Chabot Trail 30K weather history

Based on 3 years of data
Avg Temp
58°F
L:53° H:62°
RunScore
7
Conditions
Rain Freq
0%
0 of 3 yrs
Wind4mph
Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
clear-day
56°/66°-
6
2024
clear-day
46°/57°-
10
2023
partly-cloudy-day
58°/64°-
6