Best Time to Drive from Riverside to Diamond Bar

Right now (6:18 pm PDT): about 37 minutes via SR-60 West, usually 32 at this time.

Only 50% 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 Riverside to Diamond Bar 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	31	41	43	49	41	38	37	35	34	35	40	38	36	35	31	30	30
Tue	29	40	43	47	41	39	38	35	33	32	35	41	39	36	30	30	29
Wed	29	42	44	50	50	39	35	36	34	35	37	38	40	37	31	30	29
Thu	29	39	43	49	43	38	36	35	33	33	36	42	41	37	31	30	29
Fri	29	35	34	40	37	35	36	36	36	35	41	43	39	35	32	30	29
Sat	29	30	30	30	30	31	34	33	33	32	31	31	31	31	30	29	29
Sun	29	29	29	30	29	30	32	32	31	30	29	30	29	30	30	30	29

About this drive

On weekdays the 27-mile drive from Riverside to Diamond Bar (via SR-60 West) usually takes as little as 29 minutes and up to 54 minutes, when leaving around 8:30 am on Wednesdays. The fastest times to leave are before 5:30 am or after 7 pm. Midday (11 am to 2 pm) it takes about 35 minutes. On weekends it is slowest around 11 am on Saturdays (34 minutes).

About 17 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 10 miles surface streets (14 to 26 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Riverside to central Diamond Bar 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 Riverside to Diamond Bar?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 29 minutes then, versus up to 54 minutes at the worst times.

How long does it take to drive from Riverside to Diamond Bar?

The 27-mile drive usually takes 29 to 54 minutes on weekdays, depending on when you leave, and about 35 minutes midday.

When is traffic worst from Riverside to Diamond Bar?

Leaving around 8:30 am on Wednesdays is usually slowest, about 54 minutes.

Freeways on this drive

SR-60 West in Inland Empire (10 miles) · SR-60 West in Los Angeles (7 miles)

Inland Empire traffic right now · Inland Empire traffic tomorrow · Los Angeles traffic right now · Los Angeles traffic tomorrow

More drives

Diamond Bar to Riverside (return trip) · Riverside to Los Angeles · Riverside to Santa Monica · Riverside to Pasadena · Riverside to Long Beach · Riverside to West Covina · Riverside to Burbank · Riverside to Glendale · Riverside to Van Nuys · Riverside to Torrance · Riverside to LAX · Riverside to Hollywood

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	31	41	43	49	41	38	37	35	34	35	40	38	36	35	31	30	30
Tue	29	40	43	47	41	39	38	35	33	32	35	41	39	36	30	30	29
Wed	29	42	44	50	50	39	35	36	34	35	37	38	40	37	31	30	29
Thu	29	39	43	49	43	38	36	35	33	33	36	42	41	37	31	30	29
Fri	29	35	34	40	37	35	36	36	36	35	41	43	39	35	32	30	29
Sat	29	30	30	30	30	31	34	33	33	32	31	31	31	31	30	29	29
Sun	29	29	29	30	29	30	32	32	31	30	29	30	29	30	30	30	29

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	31	41	43	49	41	38	37	35	34	35	40	38	36	35	31	30	30
Tue	29	40	43	47	41	39	38	35	33	32	35	41	39	36	30	30	29
Wed	29	42	44	50	50	39	35	36	34	35	37	38	40	37	31	30	29
Thu	29	39	43	49	43	38	36	35	33	33	36	42	41	37	31	30	29
Fri	29	35	34	40	37	35	36	36	36	35	41	43	39	35	32	30	29
Sat	29	30	30	30	30	31	34	33	33	32	31	31	31	31	30	29	29
Sun	29	29	29	30	29	30	32	32	31	30	29	30	29	30	30	30	29

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	31	41	43	49	41	38	37	35	34	35	40	38	36	35	31	30	30
Tue	29	40	43	47	41	39	38	35	33	32	35	41	39	36	30	30	29
Wed	29	42	44	50	50	39	35	36	34	35	37	38	40	37	31	30	29
Thu	29	39	43	49	43	38	36	35	33	33	36	42	41	37	31	30	29
Fri	29	35	34	40	37	35	36	36	36	35	41	43	39	35	32	30	29
Sat	29	30	30	30	30	31	34	33	33	32	31	31	31	31	30	29	29
Sun	29	29	29	30	29	30	32	32	31	30	29	30	29	30	30	30	29