Traffic Predict

SR-4 West Traffic in Bay Area

As of 3:31 pm PST, SR-4 West in the San Francisco Bay Area is averaging 63 mph across 43 sensors, about normal for this time.

Open the live map of SR-4 West →

Is SR-4 West moving right now?

Yes. No stretch of SR-4 West in Bay Area is under 40 mph right now (as of 3:31 pm PST).

Earlier in the last 24 hours

Best time to drive SR-4 West

Traffic is usually worst on Tuesday around 7 am (about 50 mph). On weekdays the morning slowdown peaks around 7 am (50 mph on Tuesdays) and the evening slowdown around 2 pm (63 mph on Mondays). Midday (10 am to 2 pm) averages 63 mph. On weekends it is slowest on Saturdays around 1 pm (65 mph).

Typical average speed (mph) on SR-4 West in Bay Area, by day and hour (local time)
Day5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm
Mon6754505358616262636363646567676768
Tue6953505258616363646464656567676768
Wed6854505157626364646464656567676767
Thu6954505258626364646364656666666567
Fri6858515562636363646464656667676767
Sat6867666666656565656565666667666767
Sun6868676767666665656566656666666667

Averages of every 5-minute reading we have recorded at this time of the week. Colors match the live map.

Questions

When is traffic worst on SR-4 West in Bay Area?

Traffic on SR-4 West is usually worst on Tuesday around 7 am (about 50 mph).

What is the best time to drive SR-4 West in Bay Area?

On weekdays, avoid around 7 am (50 mph on Tuesdays) and around 2 pm (63 mph on Mondays). Midday (10 am to 2 pm) averages 63 mph, and early mornings and late evenings are fastest.

Is SR-4 West busy right now?

As of 3:31 pm PST, SR-4 West in the San Francisco Bay Area is averaging 63 mph across 43 sensors, about normal for this time.

Drives that use SR-4 West

Best times to leave for these trips, from typical traffic on SR-4 West and the roads around it:

Other freeways in Bay Area