Best Time to Drive from Riverside to Monrovia

Right now (6:48 pm PDT): about 53 minutes via SR-91 West and SR-71 South and I-210 West, usually 48 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.

Typical drive time by departure time

Minutes from Riverside to Monrovia 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	48	83	87	78	65	57	54	52	50	53	56	59	58	50	46	46	45
Tue	47	86	93	82	72	59	54	51	51	54	55	58	56	53	47	46	44
Wed	48	85	92	85	74	60	54	52	53	54	57	59	60	54	48	46	44
Thu	47	84	91	78	68	60	54	53	54	55	59	61	60	55	48	46	45
Fri	45	64	63	60	59	55	53	54	57	61	61	60	61	55	49	46	44
Sat	44	46	46	47	48	51	55	56	56	57	55	56	55	51	48	46	45
Sun	44	45	45	46	46	49	52	54	54	52	51	48	47	47	47	47	44

About this drive

On weekdays the 49-mile drive from Riverside to Monrovia (via SR-91 West and SR-71 South and I-210 West) usually takes as little as 44 minutes and up to 97 minutes, when leaving around 6:30 am on Tuesdays. The fastest times to leave are before 5:30 am or after 7 pm. Midday (11 am to 2 pm) it takes about 53 minutes. On weekends it is slowest around 1:30 pm on Saturdays (58 minutes).

About 46 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 2 miles surface streets (3 to 8 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Riverside to central Monrovia 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 Monrovia?

On weekdays, leave before 5:30 am or after 7 pm. The drive usually takes about 44 minutes then, versus up to 97 minutes at the worst times.

How long does it take to drive from Riverside to Monrovia?

The 49-mile drive usually takes 44 to 97 minutes on weekdays, depending on when you leave, and about 53 minutes midday.

When is traffic worst from Riverside to Monrovia?

Leaving around 6:30 am on Tuesdays is usually slowest, about 97 minutes.

Freeways on this drive

SR-91 West in Orange County (18 miles) · I-210 West in Los Angeles (10 miles) · SR-71 South in Los Angeles (9 miles) · SR-57 North in Los Angeles (4 miles) · SR-71 South in Inland Empire (2 miles) · SR-71 South in Orange County (2 miles)

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

More drives

Monrovia 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	48	83	87	78	65	57	54	52	50	53	56	59	58	50	46	46	45
Tue	47	86	93	82	72	59	54	51	51	54	55	58	56	53	47	46	44
Wed	48	85	92	85	74	60	54	52	53	54	57	59	60	54	48	46	44
Thu	47	84	91	78	68	60	54	53	54	55	59	61	60	55	48	46	45
Fri	45	64	63	60	59	55	53	54	57	61	61	60	61	55	49	46	44
Sat	44	46	46	47	48	51	55	56	56	57	55	56	55	51	48	46	45
Sun	44	45	45	46	46	49	52	54	54	52	51	48	47	47	47	47	44

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	48	83	87	78	65	57	54	52	50	53	56	59	58	50	46	46	45
Tue	47	86	93	82	72	59	54	51	51	54	55	58	56	53	47	46	44
Wed	48	85	92	85	74	60	54	52	53	54	57	59	60	54	48	46	44
Thu	47	84	91	78	68	60	54	53	54	55	59	61	60	55	48	46	45
Fri	45	64	63	60	59	55	53	54	57	61	61	60	61	55	49	46	44
Sat	44	46	46	47	48	51	55	56	56	57	55	56	55	51	48	46	45
Sun	44	45	45	46	46	49	52	54	54	52	51	48	47	47	47	47	44

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	48	83	87	78	65	57	54	52	50	53	56	59	58	50	46	46	45
Tue	47	86	93	82	72	59	54	51	51	54	55	58	56	53	47	46	44
Wed	48	85	92	85	74	60	54	52	53	54	57	59	60	54	48	46	44
Thu	47	84	91	78	68	60	54	53	54	55	59	61	60	55	48	46	45
Fri	45	64	63	60	59	55	53	54	57	61	61	60	61	55	49	46	44
Sat	44	46	46	47	48	51	55	56	56	57	55	56	55	51	48	46	45
Sun	44	45	45	46	46	49	52	54	54	52	51	48	47	47	47	47	44