Best Time to Drive from Diamond Bar to San Pedro

Right now (7:06 pm PDT): about 50 minutes via SR-91 West and SR-57 South, usually 48 at this time.

Only 11% 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 Diamond Bar to San Pedro 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	42	47	56	56	52	48	47	48	47	49	52	52	53	49	44	43	42
Tue	43	55	69	68	61	55	54	52	51	51	56	58	58	54	46	44	43
Wed	43	54	69	67	63	56	53	53	51	52	56	58	61	57	48	44	43
Thu	44	53	66	65	61	54	54	52	52	53	57	58	60	56	46	44	43
Fri	43	55	64	60	57	53	52	53	53	57	58	60	60	58	48	44	43
Sat	43	44	45	45	45	46	49	50	52	52	53	53	55	52	48	45	43
Sun	43	43	43	43	44	45	46	47	48	49	49	48	47	46	46	45	43

About this drive

On weekdays the 48-mile drive from Diamond Bar to San Pedro (via SR-91 West and SR-57 South) usually takes as little as 42 minutes and up to 70 minutes, when leaving around 7:30 am on Wednesdays. The fastest times to leave are before 5:30 am or after 7:30 pm. Midday (11 am to 2 pm) it takes about 51 minutes. On weekends it is slowest around 4:30 pm on Saturdays (55 minutes).

About 47 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 1.2 miles surface streets (1 to 4 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Diamond Bar to central San Pedro 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 Diamond Bar to San Pedro?

On weekdays, leave before 5:30 am or after 7:30 pm. The drive usually takes about 42 minutes then, versus up to 70 minutes at the worst times.

How long does it take to drive from Diamond Bar to San Pedro?

The 48-mile drive usually takes 42 to 70 minutes on weekdays, depending on when you leave, and about 51 minutes midday.

When is traffic worst from Diamond Bar to San Pedro?

Leaving around 7:30 am on Wednesdays is usually slowest, about 70 minutes.

Freeways on this drive

SR-91 West in Orange County (14 miles) · SR-91 West in Los Angeles (11 miles) · I-110 South in Los Angeles (8 miles) · SR-57 South in Orange County (7 miles) · SR-57 South in Los Angeles (5 miles) · SR-60 West in Los Angeles (1.4 miles)

Los Angeles traffic right now · Los Angeles traffic tomorrow

More drives

San Pedro to Diamond Bar (return trip) · Diamond Bar to Los Angeles · Diamond Bar to Long Beach · Diamond Bar to Anaheim · Diamond Bar to Riverside · Diamond Bar to Santa Ana · Diamond Bar to Irvine · Diamond Bar to San Bernardino · Diamond Bar to Fontana · Diamond Bar to Moreno Valley · Diamond Bar to Huntington Beach · Diamond Bar to Glendale

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	42	47	56	56	52	48	47	48	47	49	52	52	53	49	44	43	42
Tue	43	55	69	68	61	55	54	52	51	51	56	58	58	54	46	44	43
Wed	43	54	69	67	63	56	53	53	51	52	56	58	61	57	48	44	43
Thu	44	53	66	65	61	54	54	52	52	53	57	58	60	56	46	44	43
Fri	43	55	64	60	57	53	52	53	53	57	58	60	60	58	48	44	43
Sat	43	44	45	45	45	46	49	50	52	52	53	53	55	52	48	45	43
Sun	43	43	43	43	44	45	46	47	48	49	49	48	47	46	46	45	43

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	42	47	56	56	52	48	47	48	47	49	52	52	53	49	44	43	42
Tue	43	55	69	68	61	55	54	52	51	51	56	58	58	54	46	44	43
Wed	43	54	69	67	63	56	53	53	51	52	56	58	61	57	48	44	43
Thu	44	53	66	65	61	54	54	52	52	53	57	58	60	56	46	44	43
Fri	43	55	64	60	57	53	52	53	53	57	58	60	60	58	48	44	43
Sat	43	44	45	45	45	46	49	50	52	52	53	53	55	52	48	45	43
Sun	43	43	43	43	44	45	46	47	48	49	49	48	47	46	46	45	43

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	42	47	56	56	52	48	47	48	47	49	52	52	53	49	44	43	42
Tue	43	55	69	68	61	55	54	52	51	51	56	58	58	54	46	44	43
Wed	43	54	69	67	63	56	53	53	51	52	56	58	61	57	48	44	43
Thu	44	53	66	65	61	54	54	52	52	53	57	58	60	56	46	44	43
Fri	43	55	64	60	57	53	52	53	53	57	58	60	60	58	48	44	43
Sat	43	44	45	45	45	46	49	50	52	52	53	53	55	52	48	45	43
Sun	43	43	43	43	44	45	46	47	48	49	49	48	47	46	46	45	43