Cup Lake
Lake · Lake Tahoe corridor
Cup Lake sits at 8,734 feet in the Lake Tahoe corridor's high Sierra, a small alpine lake accessible via Highway 50. Wind-exposed and cold year-round, it draws fewer crowds than nearby basin lakes.
Cup Lake opens to afternoon wind funneling down the Sierra crest; mornings hold the calmest water. At 8,734 feet, expect temperatures 10 to 15 degrees cooler than Tahoe's shoreline. Snow persists into late spring; ice-out typically lags the main lake by 2 to 3 weeks.
Over the last 30 days, Cup Lake averaged a NoGo Score of 13 with a 30-day average wind of 10 mph and mean temperature of 32 degrees Fahrenheit. Conditions improve markedly by mid-morning on calm mornings; afternoon wind spikes are routine. The week ahead should track recent patterns: plan for mornings under 10 mph, afternoons building into 15 to 20 mph.
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About Cup Lake
Cup Lake occupies a cirque basin due east of the Highway 50 corridor, roughly 45 minutes upslope from Placerville. The lake sits hemmed by talus and sparse whitebark pine; no developed facilities or trailhead parking exist on-site. Access via scramble or off-trail routes from Highway 50 passes or from the Carson Pass area to the south. The lake's remoteness and exposure above 8,700 feet mean solitude is common, but weather windows are narrow and conditions shift fast.
Winter and early spring dominate Cup Lake's calendar. Snow cover persists into late May or early June; water temperature stays below 40 degrees Fahrenheit through summer. The 30-day average wind stands at 10 mph, with gusts to 26 mph common in afternoons. Mean temperature of 32 degrees reflects the elevation and high-altitude exposure; diurnal swings of 20 degrees between sunny mornings and shade-cold evenings are routine. Crowding averages 3 on the NoGo scale, meaning solitude is the default. Wind and cold, not human traffic, drive conditions here.
Cup Lake suits experienced backcountry travelers comfortable with scrambling, off-trail navigation, and self-rescue in exposed terrain. Paddlers after true alpine conditions find the lake less crowded than Tahoe or Echo; swimmers should plan for numbing water and short windows. Early morning visits (sunrise to mid-morning) yield flat water and stable air before thermal wind begins. Afternoon sessions almost always encounter wind building off the Sierra crest. Snow and ice make shoulder-season visits technical; summer (late June through early September) is the window for reliable access.
Nearby alternatives include Lakes in the Carson Pass drainage to the south, which share elevation and exposure, or the more-developed Basin lakes around Highway 50 to the west. Cup Lake's primary advantage is isolation; its main drawback is weather exposure and minimal infrastructure. Visitors planning multiday trips in the high Sierra often loop Cup Lake as a leg rather than a destination, pairing it with higher passes or ridge traverses where the exposed terrain and wind are part of the objective.