Best Time to Drive from Berkeley to Mountain View

Right now (7:50 pm PST): about 55 minutes via I-880 South, usually 48 at this time.

Only 45% 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 Berkeley to Mountain View 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	45	54	71	69	63	58	55	55	54	55	56	61	66	57	50	48	47
Tue	45	56	78	79	70	60	56	54	53	55	58	68	73	62	51	47	47
Wed	44	55	77	78	68	60	55	54	54	57	60	73	74	63	52	47	47
Thu	45	56	76	78	69	61	56	54	54	57	60	71	76	65	52	48	47
Fri	45	52	56	56	56	54	54	54	55	59	61	66	68	60	52	47	46
Sat	46	47	51	51	51	54	56	56	56	57	58	60	60	58	53	52	48
Sun	46	46	46	48	51	53	55	56	57	58	57	57	58	57	54	54	48

About this drive

On weekdays the 45-mile drive from Berkeley to Mountain View (via I-880 South) usually takes as little as 44 minutes and up to 80 minutes, when leaving around 7:30 am on Tuesdays. The fastest times to leave are before 6 am or after 8 pm. Midday (11 am to 2 pm) it takes about 55 minutes. On weekends it is slowest around 4 pm on Saturdays (60 minutes).

About 39 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 7 miles surface streets (12 to 21 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Berkeley (Martin Luther King Junior Way) to central Mountain View (Castro Street) 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 Berkeley to Mountain View?

On weekdays, leave before 6 am or after 8 pm. The drive usually takes about 44 minutes then, versus up to 80 minutes at the worst times.

How long does it take to drive from Berkeley to Mountain View?

The 45-mile drive usually takes 44 to 80 minutes on weekdays, depending on when you leave, and about 55 minutes midday.

When is traffic worst from Berkeley to Mountain View?

Leaving around 7:30 am on Tuesdays is usually slowest, about 80 minutes.

Freeways on this drive

I-880 South in Bay Area (22 miles) · US-101 South in Bay Area (6 miles) · SR-84 South in Bay Area (6 miles) · I-980 West in Bay Area (2 miles) · SR-85 South in Bay Area (1.5 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

Berkeley to Mountain View over Thanksgiving: when to leave →

More drives

Mountain View to Berkeley (return trip) · Berkeley to San Francisco · Berkeley to San Jose · Berkeley to Palo Alto · Berkeley to Fremont · Berkeley to Walnut Creek · Berkeley to San Mateo · Berkeley to Pleasanton · Berkeley to Santa Clara · Berkeley to SFO · Berkeley to OAK · Berkeley to SJC

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	45	54	71	69	63	58	55	55	54	55	56	61	66	57	50	48	47
Tue	45	56	78	79	70	60	56	54	53	55	58	68	73	62	51	47	47
Wed	44	55	77	78	68	60	55	54	54	57	60	73	74	63	52	47	47
Thu	45	56	76	78	69	61	56	54	54	57	60	71	76	65	52	48	47
Fri	45	52	56	56	56	54	54	54	55	59	61	66	68	60	52	47	46
Sat	46	47	51	51	51	54	56	56	56	57	58	60	60	58	53	52	48
Sun	46	46	46	48	51	53	55	56	57	58	57	57	58	57	54	54	48

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	45	54	71	69	63	58	55	55	54	55	56	61	66	57	50	48	47
Tue	45	56	78	79	70	60	56	54	53	55	58	68	73	62	51	47	47
Wed	44	55	77	78	68	60	55	54	54	57	60	73	74	63	52	47	47
Thu	45	56	76	78	69	61	56	54	54	57	60	71	76	65	52	48	47
Fri	45	52	56	56	56	54	54	54	55	59	61	66	68	60	52	47	46
Sat	46	47	51	51	51	54	56	56	56	57	58	60	60	58	53	52	48
Sun	46	46	46	48	51	53	55	56	57	58	57	57	58	57	54	54	48

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	45	54	71	69	63	58	55	55	54	55	56	61	66	57	50	48	47
Tue	45	56	78	79	70	60	56	54	53	55	58	68	73	62	51	47	47
Wed	44	55	77	78	68	60	55	54	54	57	60	73	74	63	52	47	47
Thu	45	56	76	78	69	61	56	54	54	57	60	71	76	65	52	48	47
Fri	45	52	56	56	56	54	54	54	55	59	61	66	68	60	52	47	46
Sat	46	47	51	51	51	54	56	56	56	57	58	60	60	58	53	52	48
Sun	46	46	46	48	51	53	55	56	57	58	57	57	58	57	54	54	48