Traffic Predict
SR-99 South Traffic in Bay Area
As of 8:30 am PDT, SR-99 South in the San Francisco Bay Area is averaging 60 mph across 11 sensors, about normal for this time.
Open the live map of SR-99 South →
Is SR-99 South moving right now?
Yes. No stretch of SR-99 South in Bay Area is under 40 mph right now (as of 8:30 am PDT).
Earlier in the last 24 hours
- 6:30 pm: Traffic Hazard, Sr99 S / Arch Rd Ofr
- 2:55 pm: Hit and Run No Injuries, Sr99 S / W Stockton Blvd
- 1:15 pm: Trfc Collision-1141 Enrt, Sr99 S / Armstrong Rd Ofr
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).
| Day | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 68 | 62 | 61 | 59 | 56 | 56 | 56 | 57 | 58 | 57 | 58 | 55 | 56 | 62 | 65 | 63 | 66 |
| Tue | 68 | 62 | 62 | 60 | 57 | 57 | 58 | 58 | 60 | 61 | 60 | 60 | 66 | 67 | 65 | 65 | 67 |
| Wed | 68 | 61 | 61 | 60 | 57 | 56 | 57 | 58 | 59 | 60 | 58 | 54 | 64 | 66 | 66 | 65 | 67 |
| Thu | 68 | 62 | 63 | 62 | 58 | 58 | 58 | 59 | 60 | 60 | 60 | 52 | 59 | 67 | 65 | 65 | 68 |
| Fri | 68 | 61 | 61 | 59 | 58 | 57 | 58 | 58 | 59 | 55 | 47 | 43 | 47 | 56 | 67 | 66 | 68 |
| Sat | 67 | 68 | 64 | 63 | 63 | 63 | 63 | 64 | 63 | 64 | 61 | 59 | 67 | 67 | 66 | 66 | 68 |
| Sun | 68 | 67 | 67 | 66 | 66 | 65 | 65 | 64 | 64 | 63 | 63 | 65 | 65 | 66 | 65 | 64 | 68 |
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-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 8:30 am PDT, SR-99 South in the San Francisco Bay Area is averaging 60 mph across 11 sensors, about normal for this time.
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 · SR-4 West · 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 · 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