Best Time to Drive from Brentwood to Santa Rosa

Right now (5:51 pm PDT): about 90 minutes via SR-4 West and US-101 North, usually 89 at this time.

Only 48% 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 Brentwood to Santa Rosa 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	95	112	113	101	101	102	101	100	101	108	107	102	93	90	90	89	89
Tue	92	116	126	103	100	99	98	98	97	103	106	105	95	93	90	89	89
Wed	92	116	125	105	100	100	98	98	98	103	106	105	95	90	89	89	90
Thu	92	118	127	103	99	99	96	95	96	104	111	106	96	90	91	92	92
Fri	90	103	111	99	98	98	99	99	102	109	114	107	96	91	90	90	89
Sat	89	90	90	90	91	91	92	92	93	93	91	90	90	89	89	89	89
Sun	89	89	89	89	90	91	91	92	92	91	91	91	90	89	89	89	90

About this drive

On weekdays the 81-mile drive from Brentwood to Santa Rosa (via SR-4 West and US-101 North) usually takes as little as 89 minutes and up to 128 minutes, when leaving around 6:30 am on Thursdays. The fastest times to leave are before 5:30 am or after 5 pm. Midday (11 am to 2 pm) it takes about 100 minutes. On weekends it is slowest around 1:30 pm on Saturdays (94 minutes).

About 50 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 31 miles surface streets (43 to 54 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Brentwood to central Santa Rosa 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 Brentwood to Santa Rosa?

On weekdays, leave before 5:30 am or after 5 pm. The drive usually takes about 89 minutes then, versus up to 128 minutes at the worst times.

How long does it take to drive from Brentwood to Santa Rosa?

The 81-mile drive usually takes 89 to 128 minutes on weekdays, depending on when you leave, and about 100 minutes midday.

When is traffic worst from Brentwood to Santa Rosa?

Leaving around 6:30 am on Thursdays is usually slowest, about 128 minutes.

Freeways on this drive

SR-4 West in Bay Area (23 miles) · US-101 North in Bay Area (14 miles) · I-680 North in Bay Area (5 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

Santa Rosa to Brentwood (return trip) · Brentwood to San Jose · Brentwood to San Francisco · Brentwood to Sacramento · Brentwood to Oakland · Brentwood to Upper West Side

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	95	112	113	101	101	102	101	100	101	108	107	102	93	90	90	89	89
Tue	92	116	126	103	100	99	98	98	97	103	106	105	95	93	90	89	89
Wed	92	116	125	105	100	100	98	98	98	103	106	105	95	90	89	89	90
Thu	92	118	127	103	99	99	96	95	96	104	111	106	96	90	91	92	92
Fri	90	103	111	99	98	98	99	99	102	109	114	107	96	91	90	90	89
Sat	89	90	90	90	91	91	92	92	93	93	91	90	90	89	89	89	89
Sun	89	89	89	89	90	91	91	92	92	91	91	91	90	89	89	89	90

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	95	112	113	101	101	102	101	100	101	108	107	102	93	90	90	89	89
Tue	92	116	126	103	100	99	98	98	97	103	106	105	95	93	90	89	89
Wed	92	116	125	105	100	100	98	98	98	103	106	105	95	90	89	89	90
Thu	92	118	127	103	99	99	96	95	96	104	111	106	96	90	91	92	92
Fri	90	103	111	99	98	98	99	99	102	109	114	107	96	91	90	90	89
Sat	89	90	90	90	91	91	92	92	93	93	91	90	90	89	89	89	89
Sun	89	89	89	89	90	91	91	92	92	91	91	91	90	89	89	89	90

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	95	112	113	101	101	102	101	100	101	108	107	102	93	90	90	89	89
Tue	92	116	126	103	100	99	98	98	97	103	106	105	95	93	90	89	89
Wed	92	116	125	105	100	100	98	98	98	103	106	105	95	90	89	89	90
Thu	92	118	127	103	99	99	96	95	96	104	111	106	96	90	91	92	92
Fri	90	103	111	99	98	98	99	99	102	109	114	107	96	91	90	90	89
Sat	89	90	90	90	91	91	92	92	93	93	91	90	90	89	89	89	89
Sun	89	89	89	89	90	91	91	92	92	91	91	91	90	89	89	89	90