Best Time to Drive from Tracy to South San Francisco

Right now (7:20 pm PDT): about 72 minutes via I-580 East, usually 68 at this time.

Only 58% of this drive is measured by working traffic sensors right now. The rest is estimated from nearby sensors, typical speeds and street traffic, so times can be off. Why so few sensors work.

About this drive

On weekdays the 68-mile drive from Tracy to South San Francisco (via I-580 East) usually takes as little as 65 minutes and up to 107 minutes, when leaving around 7:30 am on Thursdays. The fastest times to leave are before 6 am or after 8 pm. Midday (11 am to 2 pm) it takes about 75 minutes. On weekends it is slowest around 5:30 pm on Sundays (84 minutes).

About 59 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 9 miles surface streets (12 to 29 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Tracy to central South San Francisco along the route on the map. Starting or ending elsewhere in a big city can add or save several minutes.

Simulated from typical freeway speeds at each point of the drive for the time you would reach it, from every 5-minute reading we have recorded. We don't have sensors on surface streets yet, so the time on them is estimated from how congested the freeways around each end of the drive are at that time, in both directions: streets jam when the freeways do.

Questions

What is the best time to drive from Tracy to South San Francisco?

On weekdays, leave before 6 am or after 8 pm. The drive usually takes about 65 minutes then, versus up to 107 minutes at the worst times.

How long does it take to drive from Tracy to South San Francisco?

The 68-mile drive usually takes 65 to 107 minutes on weekdays, depending on when you leave, and about 75 minutes midday.

When is traffic worst from Tracy to South San Francisco?

Leaving around 7:30 am on Thursdays is usually slowest, about 107 minutes.

Freeways on this drive

I-580 East in Bay Area (35 miles) · US-101 North in Bay Area (10 miles) · SR-92 West in Bay Area (8 miles) · I-880 South in Bay Area (4 miles) · I-238 North in Bay Area (1.4 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

South San Francisco to Tracy (return trip) · Tracy to San Jose · Tracy to San Francisco · Tracy to Sacramento · Tracy to Oakland · Tracy to Fremont · Tracy to Elk Grove · Tracy to Hayward · Tracy to Sunnyvale · Tracy to Concord · Tracy to Santa Clara · Tracy to Vallejo

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