Best Time to Drive from Rancho Penasquitos to San Marcos

Right now (12:20 am PDT): about 17 minutes via I-15 North.

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 18-mile drive from Rancho Penasquitos to San Marcos (via I-15 North) usually takes as little as 16 minutes and up to 34 minutes, when leaving around 8 am on Tuesdays. The fastest times to leave are before 7 am or after 7 pm. Midday (11 am to 2 pm) it takes about 18 minutes. On weekends it is slowest around 1 pm on Saturdays (18 minutes).

About 17 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 1.6 miles surface streets (2 to 6 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Rancho Penasquitos to central San Marcos 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 Rancho Penasquitos to San Marcos?

On weekdays, leave before 7 am or after 7 pm. The drive usually takes about 16 minutes then, versus up to 34 minutes at the worst times.

How long does it take to drive from Rancho Penasquitos to San Marcos?

The 18-mile drive usually takes 16 to 34 minutes on weekdays, depending on when you leave, and about 18 minutes midday.

When is traffic worst from Rancho Penasquitos to San Marcos?

Leaving around 8 am on Tuesdays is usually slowest, about 34 minutes.

Freeways on this drive

I-15 North in San Diego (12 miles) · SR-78 West in San Diego (3 miles) · SR-56 East in San Diego (1.6 miles)

San Diego traffic right now · San Diego traffic tomorrow

More drives

San Marcos to Rancho Penasquitos (return trip) · Rancho Penasquitos to San Diego · Rancho Penasquitos to Anaheim · Rancho Penasquitos to Santa Ana · Rancho Penasquitos to Chula Vista · Rancho Penasquitos to Irvine · Rancho Penasquitos to Moreno Valley · Rancho Penasquitos to Oceanside · Rancho Penasquitos to Corona · Rancho Penasquitos to Escondido · Rancho Penasquitos to Carlsbad · Rancho Penasquitos to Costa Mesa

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