Tilden Lake
Lake · Yosemite corridor
Tilden Lake sits at 9,199 feet in the Yosemite corridor's high Sierra, a glacially-fed alpine basin with calmer morning conditions than the exposed ridges above. Access via Highway 120.
Wind accelerates off the lake by mid-afternoon, typically gusting to 30 mph by day's end. Morning flatness gives way to steady pressure from the west. Temperature averages 25 degrees Fahrenheit over the rolling 30 days; expect sheltered mornings and exposed afternoons.
The 30-day average wind sits at 11 mph with peaks to 30 mph, and average temperature holds at 25 degrees Fahrenheit. The rolling 30-day NoGo Score averages 16, ranging from 6 to 30. Expect the week ahead to track seasonal norms; midweek mornings typically offer the steadiest conditions before afternoon wind systems build.
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About Tilden Lake
Tilden Lake occupies a high-Alpine cirque basin in the Yosemite corridor of California's central Sierra Nevada, northeast of Yosemite Valley. The lake drains into the Tuolumne River system and sits at 9,199 feet elevation on the eastern slope, accessed primarily via Highway 120 from Lee Vining or the west side. The approach requires a day-hike or backcountry travel; the lake is not roadside. Gateway towns include Lee Vining to the east and Yosemite Valley to the west. Snow closure of Highway 120 typically locks access from November through April.
Conditions at Tilden Lake reflect high-altitude exposure combined with sheltering terrain on the eastern slope. The 30-day average wind of 11 mph masks high variability; afternoon gusts regularly reach 30 mph once heating begins around mid-morning. Temperature averages 25 degrees Fahrenheit over the last 30 days, with annual lows near 14 degrees and highs near 39 degrees. Crowding is minimal (rolling 30-day average of 6 visitors on a typical peak day), a function of the lake's backcountry position and the short summer season. Late season snowpack persists into early summer; the lake can remain frozen through early June in heavy snow years.
Tilden Lake suits overnight backpackers and alpine explorers comfortable with exposed terrain and self-sufficiency. Day-hikers reach the lake from the Tioga Pass trailhead or from the Cathedral Lakes approach, though access depends entirely on Highway 120 reopening and snowmelt. Expect intense afternoon wind; experienced visitors plan backcountry camps away from the exposed basin floor and time water collection and fishing for calm morning hours. Smoke from Sierra wildfires can persist through late summer, reducing visibility despite clear satellite weather. The rolling 30-day NoGo Score of 16 reflects these conditions as typical for the elevation; scores below 10 indicate unusually stable periods.
Nearby Cathedral Lakes and Tenaya Lake offer similar Alpine conditions at comparable elevations but with more developed access. Tenaya Lake, at lower elevation and closer to Yosemite Valley, sees higher traffic and slightly warmer temperatures. Mono Lake to the east sits at lower elevation and has road access, reducing the backpacking commitment. Tilden Lake appeals to visitors seeking isolation and true high-Sierra character; the minimal crowds and harsh midday wind are features, not drawbacks, for experienced mountaineers.