Best Time to Drive from San Ramon to Petaluma

Right now (4:50 pm PST): about 65 minutes via I-680 North, usually 65 at this time.

Only 54% 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 62-mile drive from San Ramon to Petaluma (via I-680 North) usually takes as little as 64 minutes and up to 88 minutes, when leaving around 3:30 pm on Fridays. The fastest times to leave are before 8 am or after 6:30 pm. Midday (11 am to 2 pm) it takes about 68 minutes. On weekends it is slowest around 4 pm on Saturdays (68 minutes).

About 41 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 21 miles surface streets (28 to 35 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central San Ramon to central Petaluma 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 San Ramon to Petaluma?

On weekdays, leave before 8 am or after 6:30 pm. The drive usually takes about 64 minutes then, versus up to 88 minutes at the worst times.

How long does it take to drive from San Ramon to Petaluma?

The 62-mile drive usually takes 64 to 88 minutes on weekdays, depending on when you leave, and about 68 minutes midday.

When is traffic worst from San Ramon to Petaluma?

Leaving around 3:30 pm on Fridays is usually slowest, about 88 minutes.

Freeways on this drive

I-680 North in Bay Area (23 miles) · US-101 North in Bay Area (8 miles) · SR-37 West in Bay Area (4 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

Petaluma to San Ramon (return trip) · San Ramon to San Jose · San Ramon to San Francisco · San Ramon to Sacramento · San Ramon to Oakland · San Ramon to Stockton · San Ramon to Fremont · San Ramon to Modesto · San Ramon to Santa Rosa · San Ramon to Elk Grove · San Ramon to Sunnyvale · San Ramon to Concord

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