Upper Blue Lake Dam Site Campground
Campground · Yosemite corridor
Upper Blue Lake Dam Site Campground sits at 8,199 feet in the high Sierra, near the Yosemite corridor. A quiet alpine lake base with moderate wind exposure and light crowds year-round.
Wind picks up steadily through the day as thermal currents build off the lake surface. Morning calm lasts until late morning; by afternoon gusts reach 10 to 15 mph regularly. The exposed shoreline offers no tree shelter. Cold persists even in summer; nighttime temperatures drop hard at this elevation.
The 30-day average wind of 10 mph and average NoGo Score of 17.0 reflect typical spring conditions at this elevation. The week ahead shows whether afternoon thermal wind will intensify as days lengthen. Temperature swings remain sharp; expect single-digit overnight lows and afternoon highs in the low 40s. Crowding stays low (12.0 average), so solitude is the baseline unless a holiday or good weather draws regional traffic.
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About Upper Blue Lake Dam Site Campground
Upper Blue Lake Dam Site Campground occupies a pocket of the eastern Sierra near the spine of the range, roughly 10 miles south of Highway 120 at Tioga Pass. Access is via local mountain roads from Lee Vining or from the south through Inyo National Forest. The campground sits directly at the dam; the lake is narrow and sheltered on its west bank by steep granite walls. The elevation of 8,199 feet places it firmly in the alpine zone where weather swings are dramatic. Nearby peaks and the open water create a landscape with minimal tree cover and full exposure to wind funneling down the valley.
Spring and early summer bring rapid snowmelt, so water levels and water temperature rise through May and June. The 30-day average temperature of 31 degrees Fahrenheit reflects typical late-April conditions; by mid-July, daytime highs climb into the mid-50s, though nights still drop below freezing. Wind is the dominant pattern: the 30-day average wind of 10 mph underestimates the daily cycle. Morning hours are calm; thermal wind kicks in hard by noon and can gust to 20 mph or higher by mid-afternoon. Winter snowfall is heavy at this elevation, and Highway 120 closes seasonally, so access depends on road conditions from late October through late May.
This campground suits visitors seeking high-altitude solitude away from Yosemite Valley crowds. Backpackers use it as a staging point; day hikers and anglers work the lake itself. The low base popularity of 0.3 and 30-day average crowding of 12.0 mean parking and campsites are rarely contested. Cold, wind, and sparse facilities appeal to self-sufficient travelers comfortable with alpine conditions. The average maximum wind of 24 mph in the rolling 30-day window signals that paddlers and anything needing calm water should target early mornings before 10 a.m. Afternoon activity is taxing. Experienced visitors plan around the thermal wind cycle and expect to be off the water by early afternoon.
The Upper Blue Lake Dam Site lies within a cluster of high-Sierra water access points. Nearby alternatives include lower-elevation campgrounds to the west toward Yosemite and higher alpine basins accessed via longer approach hikes. The exposed, wind-prone character of Upper Blue Lake contrasts sharply with sheltered valley sites at lower elevation. For paddlers and swimmers, the cold water temperature and afternoon wind make this a morning-only destination. The Yosemite corridor offers softer conditions at lower elevation but longer drive times from the east side; Upper Blue Lake trades shelter for directness and elevation.