Traffic Predict
US-101 South Traffic in Bay Area
As of 7:45 pm PST, US-101 South in the San Francisco Bay Area is averaging 59 mph across 182 sensors, about normal for this time. The slowest stretch is near Sfia, at 13 mph. 3 sensors report stop-and-go traffic under 30 mph.
Open the live map of US-101 South →
Incidents on US-101 South right now
- Trfc Collision-Unkn Inj: Us101 S / Cesar Chavez St Ofr
- Trfc Collision-Unkn Inj: Us101 S / Cesar Chavez St Ofr
Is US-101 South moving right now?
Slow stretches as of 7:45 pm PST, and why:
- Near Sfia On-s-fly (lower Roadway): 13 mph, likely heavy traffic.
- Near Willow Rd Rm-s-loop: 18 mph, likely heavier traffic than usual for this time (usually 61 mph).
- Near 4a5334 Loc 2: 22 mph, likely heavier traffic than usual for this time (usually 68 mph).
- Near Laguna De Santa Rosa: 31 mph, likely heavier traffic than usual for this time (usually 56 mph).
Earlier in the last 24 hours
- 6:26 pm: Hit and Run No Injuries, Us101 S / Sr85 S
- 6:26 pm: Hit and Run No Injuries, Us101 S / Sr85 S
- 6:11 pm: Hit and Run No Injuries, Us101 S / Ccg
- 5:31 pm: Trfc Collision-1141 Enrt, Us101 S / Gravenstein Hwy Ofr
- 5:31 pm: Trfc Collision-Unkn Inj, Us101 S / Gravenstein Hwy Ofr
- 5:15 pm: Trfc Collision-Unkn Inj, Us101 S / Lincoln Ave Onr
- 5:15 pm: Trfc Collision-Unkn Inj, Us101 S / Us101 S Sr237 E Con
- 4:45 pm: Trfc Collision-No Inj, Us101 S / Millbrae Ave E Onr
Best time to drive US-101 South
Traffic is usually worst on Thursday around 5 pm (about 51 mph). On weekdays the morning slowdown peaks around 8 am (54 mph on Tuesdays) and the evening slowdown around 5 pm (51 mph on Thursdays). Midday (10 am to 2 pm) averages 60 mph. On weekends it is slowest on Saturdays around 2 pm (61 mph).
| Day | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 68 | 65 | 59 | 56 | 57 | 60 | 60 | 60 | 60 | 58 | 55 | 54 | 54 | 59 | 63 | 65 | 67 |
| Tue | 68 | 65 | 58 | 54 | 54 | 58 | 60 | 61 | 61 | 58 | 55 | 53 | 52 | 57 | 62 | 65 | 67 |
| Wed | 68 | 65 | 58 | 54 | 55 | 59 | 60 | 61 | 60 | 58 | 55 | 52 | 52 | 57 | 62 | 65 | 67 |
| Thu | 68 | 65 | 58 | 54 | 55 | 59 | 61 | 61 | 60 | 57 | 54 | 52 | 51 | 56 | 60 | 64 | 67 |
| Fri | 68 | 65 | 61 | 59 | 61 | 61 | 61 | 60 | 59 | 56 | 54 | 53 | 55 | 58 | 62 | 65 | 67 |
| Sat | 68 | 68 | 67 | 66 | 65 | 63 | 62 | 61 | 61 | 61 | 61 | 61 | 62 | 63 | 65 | 65 | 68 |
| Sun | 68 | 68 | 68 | 68 | 67 | 65 | 63 | 62 | 61 | 62 | 62 | 62 | 63 | 63 | 64 | 65 | 68 |
Averages of every 5-minute reading we have recorded at this time of the week. Colors match the live map.
Questions
Why is US-101 South slow right now?
Near Sfia On-s-fly (lower Roadway): 13 mph, likely heavy traffic. Near Willow Rd Rm-s-loop: 18 mph, likely heavier traffic than usual for this time (usually 61 mph). Near 4a5334 Loc 2: 22 mph, likely heavier traffic than usual for this time (usually 68 mph). Near Laguna De Santa Rosa: 31 mph, likely heavier traffic than usual for this time (usually 56 mph).
When is traffic worst on US-101 South in Bay Area?
Traffic on US-101 South is usually worst on Thursday around 5 pm (about 51 mph).
What is the best time to drive US-101 South in Bay Area?
On weekdays, avoid around 8 am (54 mph on Tuesdays) and around 5 pm (51 mph on Thursdays). Midday (10 am to 2 pm) averages 60 mph, and early mornings and late evenings are fastest.
Is US-101 South busy right now?
As of 7:45 pm PST, US-101 South in the San Francisco Bay Area is averaging 59 mph across 182 sensors, about normal for this time. The slowest stretch is near Sfia, at 13 mph. 3 sensors report stop-and-go traffic under 30 mph.
Drives that use US-101 South
Best times to leave for these trips, from typical traffic on US-101 South and the roads around it:
San Francisco to Morgan Hill · Foster City to Salinas · Redwood City to Salinas · San Mateo to Gilroy · Santa Rosa to San Carlos · Palo Alto to Salinas · Menlo Park to Salinas · Santa Rosa to Foster City · Redwood City to Gilroy · San Francisco to Alum Rock
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 · SR-99 South · US-101 North · 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