Best Time to Drive from Sunnyvale to San Ramon

Right now (6:48 pm PDT): about 43 minutes via I-680 North, usually 40 at this time.

Only 60% 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 Sunnyvale to San Ramon 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	38	38	40	43	44	41	41	41	42	43	51	51	52	49	41	39	38
Tue	37	38	40	43	49	44	43	41	40	43	54	65	74	68	49	42	37
Wed	37	38	40	44	44	43	40	40	40	43	56	65	75	64	50	42	37
Thu	37	38	40	46	45	42	40	40	40	44	55	64	74	62	50	42	37
Fri	37	38	39	40	40	40	40	40	41	45	51	52	49	47	43	40	38
Sat	37	37	37	37	38	38	39	39	39	39	40	40	41	40	40	40	39
Sun	37	37	37	38	37	38	39	39	39	39	39	39	40	40	39	39	38

About this drive

On weekdays the 39-mile drive from Sunnyvale to San Ramon (via I-680 North) usually takes as little as 37 minutes and up to 81 minutes, when leaving around 4:30 pm on Wednesdays. The fastest times to leave are before 7:30 am or after 8:30 pm. Midday (11 am to 2 pm) it takes about 41 minutes. On weekends it is slowest around 5 pm on Saturdays (41 minutes).

About 34 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 5 miles surface streets (7 to 16 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Sunnyvale to central San Ramon 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 Sunnyvale to San Ramon?

On weekdays, leave before 7:30 am or after 8:30 pm. The drive usually takes about 37 minutes then, versus up to 81 minutes at the worst times.

How long does it take to drive from Sunnyvale to San Ramon?

The 39-mile drive usually takes 37 to 81 minutes on weekdays, depending on when you leave, and about 41 minutes midday.

When is traffic worst from Sunnyvale to San Ramon?

Leaving around 4:30 pm on Wednesdays is usually slowest, about 81 minutes.

Freeways on this drive

I-680 North in Bay Area (22 miles) · I-880 North in Bay Area (6 miles) · SR-237 East in Bay Area (6 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

San Ramon to Sunnyvale (return trip) · Sunnyvale to Stockton · Sunnyvale to Modesto · Sunnyvale to Concord · Sunnyvale to Vallejo · Sunnyvale to Fairfield · Sunnyvale to Antioch · Sunnyvale to Daly City · Sunnyvale to Vacaville · Sunnyvale to San Leandro · Sunnyvale to Livermore · Sunnyvale to Tracy

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	38	38	40	43	44	41	41	41	42	43	51	51	52	49	41	39	38
Tue	37	38	40	43	49	44	43	41	40	43	54	65	74	68	49	42	37
Wed	37	38	40	44	44	43	40	40	40	43	56	65	75	64	50	42	37
Thu	37	38	40	46	45	42	40	40	40	44	55	64	74	62	50	42	37
Fri	37	38	39	40	40	40	40	40	41	45	51	52	49	47	43	40	38
Sat	37	37	37	37	38	38	39	39	39	39	40	40	41	40	40	40	39
Sun	37	37	37	38	37	38	39	39	39	39	39	39	40	40	39	39	38

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	38	38	40	43	44	41	41	41	42	43	51	51	52	49	41	39	38
Tue	37	38	40	43	49	44	43	41	40	43	54	65	74	68	49	42	37
Wed	37	38	40	44	44	43	40	40	40	43	56	65	75	64	50	42	37
Thu	37	38	40	46	45	42	40	40	40	44	55	64	74	62	50	42	37
Fri	37	38	39	40	40	40	40	40	41	45	51	52	49	47	43	40	38
Sat	37	37	37	37	38	38	39	39	39	39	40	40	41	40	40	40	39
Sun	37	37	37	38	37	38	39	39	39	39	39	39	40	40	39	39	38

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	38	38	40	43	44	41	41	41	42	43	51	51	52	49	41	39	38
Tue	37	38	40	43	49	44	43	41	40	43	54	65	74	68	49	42	37
Wed	37	38	40	44	44	43	40	40	40	43	56	65	75	64	50	42	37
Thu	37	38	40	46	45	42	40	40	40	44	55	64	74	62	50	42	37
Fri	37	38	39	40	40	40	40	40	41	45	51	52	49	47	43	40	38
Sat	37	37	37	37	38	38	39	39	39	39	40	40	41	40	40	40	39
Sun	37	37	37	38	37	38	39	39	39	39	39	39	40	40	39	39	38