Traffic Predict

SR-99 South Traffic in Bay Area

As of 12:15 pm PDT, SR-99 South in the San Francisco Bay Area is averaging 39 mph across 12 sensors, 19 mph slower than usual for this time. The slowest stretch is near 99sb At Eschinger Rd at 4 mph. 4 sensors report stop-and-go traffic under 30 mph.

Open the live map of SR-99 South →

Incidents on SR-99 South right now

Is SR-99 South moving right now?

Slow stretches as of 12:15 pm PDT, and why:

Earlier in the last 24 hours

Best time to drive SR-99 South

Traffic is usually worst on Friday around 4 pm (about 43 mph). On weekdays the morning slowdown peaks around 9 am (56 mph on Mondays) and the evening slowdown around 4 pm (43 mph on Fridays). Midday (10 am to 2 pm) averages 58 mph. On weekends it is slowest on Saturdays around 4 pm (59 mph).

Typical average speed (mph) on SR-99 South in Bay Area, by day and hour (local time)
Day5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm
Mon6862615956565657585758555662656366
Tue6862626057575858606160606667666567
Wed6862626160595859596159556466666567
Thu6863636258585859606060536067666568
Fri6962605856565858595547434756676668
Sat6767646363636364636461596767666668
Sun6867676666656564646363656566656568

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

Questions

Why is SR-99 South slow right now?

Near 99sb At Eschinger Rd: 4 mph, likely a nearby incident: CFIRE-Car Fire (Sr99 S / Dillard Rd). Near 99sb At Grant Line: 5 mph, likely heavier traffic than usual for this time (usually 55 mph). Near 99sb At Dillard Rd: 29 mph, likely a nearby incident: CFIRE-Car Fire (Sr99 S / Dillard Rd).

When is traffic worst on SR-99 South in Bay Area?

Traffic on SR-99 South is usually worst on Friday around 4 pm (about 43 mph).

What is the best time to drive SR-99 South in Bay Area?

On weekdays, avoid around 9 am (56 mph on Mondays) and around 4 pm (43 mph on Fridays). Midday (10 am to 2 pm) averages 58 mph, and early mornings and late evenings are fastest.

Is SR-99 South busy right now?

As of 12:15 pm PDT, SR-99 South in the San Francisco Bay Area is averaging 39 mph across 12 sensors, 19 mph slower than usual for this time. The slowest stretch is near 99sb At Eschinger Rd at 4 mph. 4 sensors report stop-and-go traffic under 30 mph.

Drives that use SR-99 South

Best times to leave for these trips, from typical traffic on SR-99 South and the roads around it:

Other freeways in Bay Area