Traffic Predict

SR-4 West Traffic in Bay Area

As of 2:45 pm PDT, SR-4 West in the San Francisco Bay Area is averaging 64 mph across 59 sensors, about normal for this time. The slowest stretch is near Alhambra Ave Rm-w-diag at 42 mph (usually 62 mph).

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 2:45 pm PDT).

Earlier in the last 24 hours

Best time to drive SR-4 West

Traffic is usually worst on Wednesday around 7 am (about 49 mph). On weekdays the morning slowdown peaks around 7 am (49 mph on Wednesdays) 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 (64 mph).

Typical average speed (mph) on SR-4 West in Bay Area, by day and hour (local time)
Day5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm
Mon6753505358616262636363646567676768
Tue6953495158616363646464656567676768
Wed6853495156626363646464656567676767
Thu6853495158626464646464656667666567
Fri6857515462636364646464656667676767
Sat6867666665656565646565656667676768
Sun6868676767666665656666656667676767

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 49 mph).

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

On weekdays, avoid around 7 am (49 mph on Wednesdays) 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 2:45 pm PDT, SR-4 West in the San Francisco Bay Area is averaging 64 mph across 59 sensors, about normal for this time. The slowest stretch is near Alhambra Ave Rm-w-diag at 42 mph (usually 62 mph).

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:

Stockton to Richmond · Brentwood to San Francisco · Oakley to San Francisco · Lodi to San Francisco · Galt to San Francisco · Antioch to San Francisco · Stockton to Vallejo · Brentwood to Oakland · Pittsburg to San Francisco · Stockton to Concord

Plan ahead: Bay Area traffic tomorrow · Christmas traffic · Fourth Of July traffic · Labor Day traffic · Memorial Day traffic · Is Bay Area traffic getting worse? · Traffic estimator

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