Best Time to Drive from Concord to South San Francisco

Right now (5:49 pm PDT): about 42 minutes via SR-24 West and I-80 West, usually 46 at this time.

Only 79% 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.

Typical drive time by departure time

Minutes from Concord to South San Francisco by day and time you leave (local time)
Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	44	49	59	53	44	41	39	39	38	38	39	42	39	37	36	35
Tue	34	43	55	62	60	49	43	39	37	38	38	40	47	46	37	36	35
Wed	34	43	53	61	57	47	45	40	37	38	39	40	50	46	37	36	35
Thu	34	43	53	61	58	48	44	41	39	39	39	44	59	48	38	36	35
Fri	34	39	44	46	43	40	38	38	38	39	40	42	49	45	39	36	35
Sat	35	36	38	38	39	40	47	51	51	49	49	45	45	46	41	40	36
Sun	35	35	35	37	39	40	42	45	48	48	48	46	46	44	42	41	36

About this drive

On weekdays the 38-mile drive from Concord to South San Francisco (via SR-24 West and I-80 West) usually takes as little as 34 minutes and up to 62 minutes, when leaving around 8:30 am on Tuesdays. The fastest times to leave are before 6 am or after 7:30 pm. Midday (11 am to 2 pm) it takes about 39 minutes. On weekends it is slowest around 12:30 pm on Saturdays (52 minutes).

About 35 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 3 miles surface streets (4 to 8 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Concord 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 Concord to South San Francisco?

On weekdays, leave before 6 am or after 7:30 pm. The drive usually takes about 34 minutes then, versus up to 62 minutes at the worst times.

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

The 38-mile drive usually takes 34 to 62 minutes on weekdays, depending on when you leave, and about 39 minutes midday.

When is traffic worst from Concord to South San Francisco?

Leaving around 8:30 am on Tuesdays is usually slowest, about 62 minutes.

Freeways on this drive

SR-24 West in Bay Area (14 miles) · I-80 West in Bay Area (10 miles) · US-101 South in Bay Area (5 miles) · I-680 South in Bay Area (5 miles) · I-580 East in Bay Area (1.2 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

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

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	44	49	59	53	44	41	39	39	38	38	39	42	39	37	36	35
Tue	34	43	55	62	60	49	43	39	37	38	38	40	47	46	37	36	35
Wed	34	43	53	61	57	47	45	40	37	38	39	40	50	46	37	36	35
Thu	34	43	53	61	58	48	44	41	39	39	39	44	59	48	38	36	35
Fri	34	39	44	46	43	40	38	38	38	39	40	42	49	45	39	36	35
Sat	35	36	38	38	39	40	47	51	51	49	49	45	45	46	41	40	36
Sun	35	35	35	37	39	40	42	45	48	48	48	46	46	44	42	41	36

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	44	49	59	53	44	41	39	39	38	38	39	42	39	37	36	35
Tue	34	43	55	62	60	49	43	39	37	38	38	40	47	46	37	36	35
Wed	34	43	53	61	57	47	45	40	37	38	39	40	50	46	37	36	35
Thu	34	43	53	61	58	48	44	41	39	39	39	44	59	48	38	36	35
Fri	34	39	44	46	43	40	38	38	38	39	40	42	49	45	39	36	35
Sat	35	36	38	38	39	40	47	51	51	49	49	45	45	46	41	40	36
Sun	35	35	35	37	39	40	42	45	48	48	48	46	46	44	42	41	36

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	35	44	49	59	53	44	41	39	39	38	38	39	42	39	37	36	35
Tue	34	43	55	62	60	49	43	39	37	38	38	40	47	46	37	36	35
Wed	34	43	53	61	57	47	45	40	37	38	39	40	50	46	37	36	35
Thu	34	43	53	61	58	48	44	41	39	39	39	44	59	48	38	36	35
Fri	34	39	44	46	43	40	38	38	38	39	40	42	49	45	39	36	35
Sat	35	36	38	38	39	40	47	51	51	49	49	45	45	46	41	40	36
Sun	35	35	35	37	39	40	42	45	48	48	48	46	46	44	42	41	36