Hart Lakes
Lake · Yosemite corridor
Hart Lakes sits at 8,720 feet in the Yosemite corridor of California's Sierra Nevada. A pair of glacially-carved alpine lakes, they offer cooler, calmer water than the valley floor and typically lighter crowds than nearby Tenaya Lake.
Wind averages 10 mph across the 30-day window but ramps sharply in afternoon hours; calm mornings are the rule before 11:00 a.m. Water temperature stays cold year-round, and exposure to the open sky means afternoon thermals drive both wind and UV intensity. Head here on calm mornings if you're paddling or wading.
The 30-day average wind of 10 mph masks a tight swing from 6 mph calm days to 30 mph afternoon gusts. Temperature averages 27 degrees Fahrenheit over the rolling month, with the year-round minimum of 14 degrees typical in deep winter. Expect crowding to stay low (averaging 6 on the 100-point scale) through early summer as Highway 120 traffic remains moderate. The week ahead will likely track the 30-day pattern: mild mornings, escalating afternoon wind.
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About Hart Lakes
Hart Lakes is a two-lake system nestled in the high Sierra backcountry between Tenaya Canyon and the Cathedral Range. Access is via Highway 120 (Tioga Pass Road), approximately 40 minutes northeast of Yosemite Valley. The trailhead sits near Tenaya Lake; Hart Lakes lie further inland at 8,720 feet elevation, making them significantly cooler and snowier than valley alternatives. The corridor classification places it squarely in the Yosemite access zone, where late-spring and early-fall conditions dominate visitor behavior.
Conditions at Hart Lakes are driven by elevation and exposure. The 30-day average temperature of 27 degrees reflects the altitude; daily swings are large because the lakes lack significant windbreak features on the western and southern exposures. Wind averages 10 mph but frequently exceeds that benchmark by afternoon, peaking near 30 mph in the 30-day rolling record. Crowding averages 6 (very low) because the location sits off the main Tenaya Lake draw and requires committed backcountry effort. Snowpack persists into late spring at this elevation; melt-water inflow is heaviest in early summer.
Hart Lakes suit hikers, backpackers, and alpine photographers seeking solitude and dramatic granite scenery. The low average crowding of 6 means you will encounter few vehicles or large groups, especially mid-week. Experienced visitors plan around afternoon wind; a morning start is non-negotiable if you intend to paddle or fish. Water temperature remains cold enough to demand a wetsuit year-round. The site works well paired with Tenaya Lake (10 minutes driving) as a contrast in exposure and crowding; many visitors hit the lower lake first, then push inland to Hart Lakes for the quieter experience.
Highway 120 access is seasonal; the road typically closes in winter and reopens by late spring. Once the corridor opens, conditions at Hart Lakes stabilize into a predictable pattern: calm mornings (often single-digit wind), escalating afternoon thermals by 1:00 p.m., and brief evening lulls. The 365-day maximum wind of 30 mph and minimum temperature of 14 degrees define the extremes; plan accordingly if visiting outside traditional summer months. Smoke from distant fires can degrade visibility in late summer, particularly on still mornings when smoke pools at high elevations.