Traffic Predict

Fourth of July Traffic in Bay Area: Best and Worst Times to Drive (2027)

Based on 9 past Fourth of Julys (2017–2026, leaving out 2020), freeways across the San Francisco Bay Area are no slower than usual over Fourth of July; the busiest time is Friday (July 2 this year) around 4 pm, at 58 mph (usually 57 mph). The holiday jams are on the roads out of town: SR-1 South (Monday around 2 pm: 45 mph instead of 56 mph).

Freeways hit hardest

The hour each freeway direction slows the most against a normal day, averaged over the same years:

Day by day

Hour by hour

Average freeway speed (mph) in Bay Area by day and hour, 2017–2026
Day5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm
Fri Jul 26764626161616161605958585861656667
Sat Jul 36864626162626161615958595962656667
Sun Jul 46967666565656564646464646465676767
Mon Jul 56965636363636262626160606164666768

Averages of every hour of freeway data we have for these days in past years (hover a cell for a normal day). Dates are this year's; each past year is lined up on its own holiday.

Plan your holiday drive →

Bay Area traffic tomorrow · Bay Area traffic right now

Questions

When is the worst time to drive for Fourth of July in Bay Area?

Based on 9 past Fourth of Julys (2017–2026, leaving out 2020), freeways across the San Francisco Bay Area are no slower than usual over Fourth of July; the busiest time is Friday (July 2 this year) around 4 pm, at 58 mph (usually 57 mph). The holiday jams are on the roads out of town: SR-1 South (Monday around 2 pm: 45 mph instead of 56 mph).

What is Fourth of July traffic like in Bay Area?

Friday, July 2: about like a normal Friday; slowest around 4 pm (58 mph, usually 57 mph). Saturday, July 3: about like a normal Saturday; slowest around 3 pm (58 mph, usually 57 mph). Sunday, July 4: lighter than a normal Sunday; slowest around 3 pm (64 mph, usually 56 mph). Monday, July 5: about like a normal Monday; slowest around 4 pm (60 mph, usually 56 mph).