Best Time to Drive from Napa to San Mateo

Right now (3:20 pm PST): about 90 minutes via I-80 West and US-101 South, usually 83 at this time.

Only 47% 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 Napa to San Mateo 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	67	82	105	103	88	81	78	76	76	78	79	76	77	70	68	67	66
Tue	65	83	110	109	93	83	79	74	74	77	80	78	82	72	67	67	66
Wed	65	83	106	105	90	84	80	75	75	77	82	83	87	74	67	67	66
Thu	66	84	107	107	92	84	80	77	77	82	85	90	92	78	69	67	65
Fri	66	75	84	87	78	76	75	77	78	82	84	85	88	78	71	68	65
Sat	66	65	66	67	69	74	84	86	84	84	84	83	84	78	73	71	67
Sun	65	66	65	66	67	70	76	80	85	85	85	81	83	80	78	71	66

About this drive

On weekdays the 66-mile drive from Napa to San Mateo (via I-80 West and US-101 South) usually takes as little as 65 minutes and up to 112 minutes, when leaving around 7:30 am on Tuesdays. The fastest times to leave are before 5:30 am or after 6:30 pm. Midday (11 am to 2 pm) it takes about 77 minutes. On weekends it is slowest around 12 pm on Saturdays (86 minutes).

About 51 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 15 miles surface streets (20 to 29 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Napa to central San Mateo 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 Napa to San Mateo?

On weekdays, leave before 5:30 am or after 6:30 pm. The drive usually takes about 65 minutes then, versus up to 112 minutes at the worst times.

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

The 66-mile drive usually takes 65 to 112 minutes on weekdays, depending on when you leave, and about 77 minutes midday.

When is traffic worst from Napa to San Mateo?

Leaving around 7:30 am on Tuesdays is usually slowest, about 112 minutes.

Freeways on this drive

I-80 West in Bay Area (37 miles) · US-101 South in Bay Area (14 miles)

Bay Area traffic right now · Bay Area traffic tomorrow

More drives

San Mateo to Napa (return trip) · Napa to San Jose · Napa to San Francisco · Napa to Sacramento · Napa to Oakland · Napa to Stockton · Napa to Fremont · Napa to Santa Rosa · Napa to Elk Grove · Napa to Hayward · Napa to Sunnyvale · Napa to Roseville

Open the live traffic map →

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	67	82	105	103	88	81	78	76	76	78	79	76	77	70	68	67	66
Tue	65	83	110	109	93	83	79	74	74	77	80	78	82	72	67	67	66
Wed	65	83	106	105	90	84	80	75	75	77	82	83	87	74	67	67	66
Thu	66	84	107	107	92	84	80	77	77	82	85	90	92	78	69	67	65
Fri	66	75	84	87	78	76	75	77	78	82	84	85	88	78	71	68	65
Sat	66	65	66	67	69	74	84	86	84	84	84	83	84	78	73	71	67
Sun	65	66	65	66	67	70	76	80	85	85	85	81	83	80	78	71	66

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	67	82	105	103	88	81	78	76	76	78	79	76	77	70	68	67	66
Tue	65	83	110	109	93	83	79	74	74	77	80	78	82	72	67	67	66
Wed	65	83	106	105	90	84	80	75	75	77	82	83	87	74	67	67	66
Thu	66	84	107	107	92	84	80	77	77	82	85	90	92	78	69	67	65
Fri	66	75	84	87	78	76	75	77	78	82	84	85	88	78	71	68	65
Sat	66	65	66	67	69	74	84	86	84	84	84	83	84	78	73	71	67
Sun	65	66	65	66	67	70	76	80	85	85	85	81	83	80	78	71	66

Leave	5am	6am	7am	8am	9am	10am	11am	12pm	1pm	2pm	3pm	4pm	5pm	6pm	7pm	8pm	9pm
Mon	67	82	105	103	88	81	78	76	76	78	79	76	77	70	68	67	66
Tue	65	83	110	109	93	83	79	74	74	77	80	78	82	72	67	67	66
Wed	65	83	106	105	90	84	80	75	75	77	82	83	87	74	67	67	66
Thu	66	84	107	107	92	84	80	77	77	82	85	90	92	78	69	67	65
Fri	66	75	84	87	78	76	75	77	78	82	84	85	88	78	71	68	65
Sat	66	65	66	67	69	74	84	86	84	84	84	83	84	78	73	71	67
Sun	65	66	65	66	67	70	76	80	85	85	85	81	83	80	78	71	66