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Best Time to Cross Mariposa

BEST DAY TO CROSS
Tuesday ~21m
Typical wait in the morning (7–10 AM).
Live times Hourly chart
Avoid: Saturday in the afternoon — up to ~1h 38m
Every day BEST TO WORST
  1. Tuesday The best
    ~21m The calmest. Barely any line before dawn.
  2. Saturday #2
    ~21m Good before dawn; midday climbs only a little.
  3. Sunday #3
    ~24m Good before dawn; midday climbs only a little.
  4. Wednesday #4
    ~25m Good before dawn; midday climbs only a little.
  5. Friday #5
    ~25m Good before dawn; midday climbs only a little.
  6. Monday #6
    ~27m Good before dawn; midday climbs only a little.
  7. Thursday The worst
    ~29m The worst of the week. Avoid 10 AM–2 PM.

Historical reference · CBP

Week of Labor Day 2025

General lane · Aug 29–Sep 4

  1. 3 days before
    Average
    14m
    Range
    0m–1h

    16/24 h

  2. 2 days before
    Average
    16m
    Range
    0m–40m

    16/24 h

  3. 1 day before
    Average
    4m
    Range
    0m–20m

    15/24 h

  4. Holiday
    Average
    58m
    Range
    0m–2h

    16/24 h

  5. 1 day after
    Average
    41m
    Range
    0m–1h 15m

    16/24 h

  6. 2 days after
    Average
    7m
    Range
    0m–45m

    16/24 h

  7. 3 days after
    Average
    7m
    Range
    0m–30m

    16/24 h

Source: CBP · Labor Day 2025 · General lane.

A single week for reference; this is not a forecast.

General lane · CBP's official hourly statistics (last 15 days). Closed hours don't count.

Frequently asked questions

What is the best time to cross Mariposa?
Typically Tuesday at 7:00 AM, with an average wait of ≈21m in the general lane. The number comes from CBP's official hourly statistics and refreshes daily.
What is the worst time to cross Mariposa?
The heaviest point of the week is usually Saturday at 4:00 PM, with a typical wait of ≈1h 38m. Check the live wait times before you leave — any given day can behave differently from the typical pattern.
Where does this data come from and how reliable is it?
From CBP's official hourly statistics for Mariposa: we take the most recent typical pattern for each weekday (the averages are CBP's), so it reflects the usual behavior, not a forecast. Any given day can vary with weather, holidays or operations — so check the live wait times before you leave.
Is the best time the same for every lane?
This page summarizes the General lane, the line most people use. Trusted lanes (SENTRI or NEXUS, and Ready Lane where available) usually move at their own pace; compare them live on the Mariposa page.