Is Tioga Road open? Dates & closures.

Is Tioga Road open?

Tioga Road is the high, seasonal crossing of the Sierra, CA-120 through the Yosemite high country past Tuolumne Meadows and over Tioga Pass at nearly 10,000 feet. It is open in summer and fall and closed by snow the rest of the year. For 2026 the park says the road "will open for the season to all traffic on Friday, May 15," and that it "is typically open to vehicles from late May or June until sometime in November." Yosemite Valley, by contrast, is open all year, so a closed Tioga Road does not mean a closed park. It means the high country and the fast route across the Sierra are shut.

Typical opening and closing windows.

Aim for late May or June for the opening and expect a close sometime in November. Those are the park's own stated norms. The spring end is the unpredictable one: the 2026 opening landed on May 15, which is early, while a heavy snow year can hold the road shut into late June or beyond. The park is unusually direct about this, saying that "predicting when these roads will open is not possible, even in late spring, because weather in April and May can affect plowing progress significantly." The fall close is weather-driven too; an early Sierra storm can shut the road before Thanksgiving. If your trip is in May or June, treat Tioga as a maybe and have a Valley-based plan; if it is July through September, the road is almost always open.

What drives the dates.

Snowpack and plowing, the same as every high Sierra road. Crews start clearing "around April 15," and the job "usually takes between one and two months," so a normal year opens the road in late May or June. But the pace depends entirely on how deep the snow is and how the spring weather cooperates, which is why the park refuses to promise a date. A big winter can add weeks; a dry one can pull the opening earlier, as it did in 2026. The takeaway is simple: the deeper the snowpack you read about over winter, the later you should expect Tioga to open.

How crowds ramp as the road opens.

Yosemite's crowd curve is gentler than Glacier's or Rocky Mountain's because the Valley draws visitors all year, so the numbers do not collapse in winter the way a snowed-in mountain park's do. Still, the high-country season is the busy season. July and August are the two peak months, and June already runs about 95 percent of the peak as Tioga opens and the high country comes into play. The five-year average climbs about 1.3x from May to June.

For a quieter high-country drive, the sweet spot is right after Tioga opens in early summer, or in October before the road closes, when Valley crowds have thinned but the pass is usually still open. See the Yosemite crowd calendar for the full year.

Common questions.

When does Tioga Road open?
Typically late May or June, per the National Park Service, though the exact day cannot be predicted because spring weather sets the plowing pace. For 2026 the road opened May 15. Plowing usually begins around April 15 and takes one to two months.

Is Tioga Road open in May?
Sometimes. It depends entirely on the winter's snowpack. In a light year the road can open in mid-May, as it did in 2026; in a heavy year it may not open until late June. Yosemite Valley stays open year-round regardless, so plan a Valley option if May dates matter.

When does Tioga Road close?
Usually sometime in November, weather permitting. An early Sierra snowstorm can close it sooner, so late-fall trips over the pass should have a backup. The road then stays closed to vehicles through the winter and spring until plowing reopens it.

Can you get to Yosemite Valley when Tioga Road is closed?
Yes. Yosemite Valley is open all year on the lower western roads. A closed Tioga Road only means the high country and the direct route across the Sierra are shut; it does not close the park or the Valley.

How we read the crowds

The monthly visit counts come from the official NPS Visitor Use Statistics. "5-yr avg" is the mean of 2021 through 2025 recreation visits for that month. "Share of peak" compares a month against the park's own busiest month, so 100 percent marks the single busiest month of the year. The road opening and closing windows are not in that data. Those come from the park's own official road pages, which we verified live on July 13, 2026, and they shift with snow and weather every year, so we hedge them on purpose. This is an independent site, not affiliated with the National Park Service. For the live open or closed status on the day you travel, use the official NPS page linked at the top of this guide.