Getting onto the Cape

typical

Typical Friday · Boston → Sagamore Bridge

near clear2× +

	10a	11a	3p	4p	5p	6p	7p	8p	9p
Thu	–	–
Fri
Sat			–	–	–	–	–	–	–

Source: Google Routes API · colour shows delay vs the 0:53 clear-road baseline (same scale for every origin) · blank cells are outside tracked travel windows. Hover any cell for readings by date.

Crossing the Sagamore Bridge on Friday? Plan the beach day on the other side →

Live conditions right now

Routes to Cape

Clear Moderate Heavy

Current Drive Time to Sagamore Bridge

Checking conditions…

Fetching…

The shape of each day · Boston → Sagamore Bridge · July

dashed = clear road 0:53

Thursday

6a9p

2P spike to 1:57 — the week's worst

Friday

6a9p

Peaks mid-afternoon at 1:47

Saturday

6a2p

Peaks around noon at 1:17

Typical Friday, hour by hour · Boston → Sagamore Bridge

same colours as the weekly grid

clear road 0:53

0:57

1:00

1:04

1:03

1:34

1:40

1:46

1:45

1:47

1:40

1:31

1:17

1:05

1:00

0:58

6a7a8a9a10a11a12p1p2p3p4p5p6p7p8p9p

The readings log

Show me between and , , on over , .

When	Route	Duration vs clear

0 of … matching readings·Download CSV

Where these numbers come from

Live readings

Google Routes API, polled every 15 minutes from 9 origins.

Logged history

44,316 readings stored since May 2026 — every one browsable below.

Typical patterns

Recent same-weekday readings lead; learned 90-day curves fill sparse hours.

Every number is a measurement — hours we don't track are shown blank, never estimated.Full statistics & methodology·Browse all 44,316 readings·Download CSV

Read the full methodology

Live — Real-time Google reading (5+ samples this hour)
Calibrated — Learned multiplier from 90-day history
Not tracked — Outside the collection window — shown blank, never invented

Cape Cod Holiday Weekend Traffic

Holiday weekends compress a whole summer weekend into fewer usable hours: the getaway starts Thursday, Friday can jam by mid-morning, and the return spreads across Sunday and the holiday Monday. The patterns below show a typical peak weekend — on the big three holidays, expect the peaks to run longer and start earlier than the numbers shown, and treat the early-morning windows as the only sure bets.

On a typical Friday, the calmest window is around 6 AM (~57 min) and the worst is around 2 PM (~107 min, up to ~132 on busy days — about 102% over a clear run).

Cape Cod Holiday Weekend Traffic — FAQ

What is the best time to leave Boston for Sagamore Bridge on a Friday?

Based on measured readings, the calmest Friday window is around 6 AM, when the drive typically runs about 57 minutes. The closer you get to 2 PM, the worse it gets.

How long does Boston to Sagamore Bridge take on a Friday?

Anywhere from about 57 minutes in the calmest window to 107 minutes at the Friday peak — and up to roughly 132 minutes on the busiest days. These are measured averages from drive-time readings taken every 15 minutes, not estimates.

When is Sagamore Bridge traffic worst on a Friday?

The peak is around 2 PM, averaging 107 minutes from Boston — about 102% over a clear run. It typically eases within a few hours either side.

Are these Cape Cod drive times measured or estimated?

Measured. A collection job records the with-traffic drive time from the Google Routes API every 15 minutes during Cape travel windows. See the full methodology and tables on the traffic statistics page.

Answers computed from measured readings · full statistics & methodology