SR-4 West Traffic in Bay Area

As of 8:45 am PDT, SR-4 West in the San Francisco Bay Area is averaging 66 mph across 73 sensors, about normal for this time.

Open the live map of SR-4 West →

Best time to drive SR-4 West

Traffic is usually worst on Wednesday around 7 am (about 51 mph). On weekdays the morning slowdown peaks around 7 am (51 mph on Wednesdays) and the evening slowdown around 2 pm (62 mph on Mondays). Midday (10 am to 2 pm) averages 62 mph. On weekends it is slowest on Saturdays around 1 pm (64 mph).

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 Wednesday around 7 am (about 51 mph).

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

On weekdays, avoid around 7 am (51 mph on Wednesdays) and around 2 pm (62 mph on Mondays). Midday (10 am to 2 pm) averages 62 mph, and early mornings and late evenings are fastest.

Is SR-4 West busy right now?

As of 8:45 am PDT, SR-4 West in the San Francisco Bay Area is averaging 66 mph across 73 sensors, about normal for this time.

Other freeways in Bay Area

SR-1 North · SR-1 South · SR-4 East · I-5 North · I-5 South · SR-12 East · SR-12 West · SR-17 North · SR-17 South · SR-24 East · SR-24 West · SR-25 North · SR-25 South · SR-29 South · SR-37 East · SR-37 West · I-80 East · I-80 West · SR-84 North · SR-84 South · SR-85 North · SR-85 South · SR-87 North · SR-87 South · SR-92 East · SR-92 West · SR-99 North · SR-99 South · US-101 North · US-101 South · SR-120 East · SR-120 West · SR-132 East · SR-132 West · I-205 East · I-205 West · SR-237 East · SR-237 West · I-238 North · I-238 South · SR-242 North · SR-242 South · I-280 North · I-280 South · I-580 East · I-580 West · I-680 North · I-680 South · I-880 North · I-880 South · I-980 East · I-980 West