Best Time to Drive from San Francisco to Napa

Right now (8:49 pm PDT): about 52 minutes via I-80 East, usually 52 at this time.

Only 63% 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 San Francisco to Napa 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	51	57	63	63	60	59	59	59	58	59	67	68	70	65	55	53	52
Tue	51	57	62	63	59	58	57	57	57	58	67	74	78	71	56	54	52
Wed	51	57	63	63	58	57	58	58	57	59	66	75	80	71	58	54	52
Thu	51	57	63	64	59	58	58	58	57	59	67	75	80	72	59	54	52
Fri	51	55	57	57	57	57	58	59	61	67	77	82	84	71	59	54	52
Sat	51	51	51	52	53	55	58	58	59	59	59	60	58	55	54	54	52
Sun	51	51	51	51	52	54	57	58	58	61	58	57	57	54	55	54	52

About this drive

On weekdays the 49-mile drive from San Francisco to Napa (via I-80 East) usually takes as little as 51 minutes and up to 84 minutes, when leaving around 4:30 pm on Fridays. The fastest times to leave are before 6 am or after 7:30 pm. Midday (11 am to 2 pm) it takes about 58 minutes. On weekends it is slowest around 2 pm on Sundays (61 minutes).

About 34 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 15 miles surface streets (21 to 32 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from downtown San Francisco to central Napa 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 San Francisco to Napa?

On weekdays, leave before 6 am or after 7:30 pm. The drive usually takes about 51 minutes then, versus up to 84 minutes at the worst times.

How long does it take to drive from San Francisco to Napa?

The 49-mile drive usually takes 51 to 84 minutes on weekdays, depending on when you leave, and about 58 minutes midday.

When is traffic worst from San Francisco to Napa?

Leaving around 4:30 pm on Fridays is usually slowest, about 84 minutes.

Freeways on this drive

I-80 East in Bay Area (31 miles) · US-101 South in Bay Area (3 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

Napa to San Francisco (return trip) · San Francisco to San Jose · San Francisco to Palo Alto · San Francisco to Berkeley · San Francisco to Fremont · San Francisco to Walnut Creek · San Francisco to San Mateo · San Francisco to Hayward · San Francisco to Mountain View · San Francisco to Pleasanton · San Francisco to Santa Clara · San Francisco to Richmond

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	51	57	63	63	60	59	59	59	58	59	67	68	70	65	55	53	52
Tue	51	57	62	63	59	58	57	57	57	58	67	74	78	71	56	54	52
Wed	51	57	63	63	58	57	58	58	57	59	66	75	80	71	58	54	52
Thu	51	57	63	64	59	58	58	58	57	59	67	75	80	72	59	54	52
Fri	51	55	57	57	57	57	58	59	61	67	77	82	84	71	59	54	52
Sat	51	51	51	52	53	55	58	58	59	59	59	60	58	55	54	54	52
Sun	51	51	51	51	52	54	57	58	58	61	58	57	57	54	55	54	52

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	51	57	63	63	60	59	59	59	58	59	67	68	70	65	55	53	52
Tue	51	57	62	63	59	58	57	57	57	58	67	74	78	71	56	54	52
Wed	51	57	63	63	58	57	58	58	57	59	66	75	80	71	58	54	52
Thu	51	57	63	64	59	58	58	58	57	59	67	75	80	72	59	54	52
Fri	51	55	57	57	57	57	58	59	61	67	77	82	84	71	59	54	52
Sat	51	51	51	52	53	55	58	58	59	59	59	60	58	55	54	54	52
Sun	51	51	51	51	52	54	57	58	58	61	58	57	57	54	55	54	52

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	51	57	63	63	60	59	59	59	58	59	67	68	70	65	55	53	52
Tue	51	57	62	63	59	58	57	57	57	58	67	74	78	71	56	54	52
Wed	51	57	63	63	58	57	58	58	57	59	66	75	80	71	58	54	52
Thu	51	57	63	64	59	58	58	58	57	59	67	75	80	72	59	54	52
Fri	51	55	57	57	57	57	58	59	61	67	77	82	84	71	59	54	52
Sat	51	51	51	52	53	55	58	58	59	59	59	60	58	55	54	54	52
Sun	51	51	51	51	52	54	57	58	58	61	58	57	57	54	55	54	52