Coldwater Campground
Campground · Mammoth Lakes corridor
Coldwater Campground sits at 9,075 feet in the Mammoth Lakes corridor of California's Sierra Nevada, a high-elevation base for access to the June Lake Loop and surrounding ridgelines.
Wind accelerates through the afternoon as thermals lift off surrounding slopes. Mornings are calmer and colder, often below freezing even in late spring. Head out before 11 a.m. if you're sensitive to wind; by midday expect the 12 mph 30-day average to spike higher, with gusts reaching 31 mph in rough weeks.
The past 30 days averaged 12 mph wind and 31 degrees, typical for this elevation in spring. The NoGo Score has ranged from 6 to 35, with a 30-day mean of 15. Watch the forecast ahead for afternoon wind and any remnant snow blocking access roads; conditions shift rapidly as the season transitions.
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About Coldwater Campground
Coldwater Campground lies at 9,075 feet on the eastern flank of the Mammoth Lakes corridor, reached via Highway 395 and local roads branching toward the June Lake Loop. The site sits in the transition zone between the high desert and Sierra crest, exposed to afternoon thermals and drainage winds. Gateway towns include Mammoth Lakes to the south and Lee Vining to the east. Access is straightforward but elevation-dependent; late spring snow can block or delay entry, and traction control is advisable through early May.
Spring and early summer bring the most wind; the 30-day average of 12 mph with occasional gusts to 31 mph reflects typical late-season patterns at this elevation. Temperatures average 31 degrees over the past month, swinging between 17 degrees in winter and near 47 degrees by late summer. Crowding averages 8 on the 30-day rolling window, rising sharply after Memorial Day and Highway 120 opens. Mornings are consistently quieter and calmer; afternoons funnel wind off the lake basins to the east. Fall and early winter are driest, though snow can return by October.
Coldwater Campground suits campers and day-users seeking access to June Lake drainage, ridgeline hikes, and viewing points above the valley floor. Experienced visitors arrive early to avoid afternoon wind and secure parking before midday. The site works well for those acclimating to high elevation or planning multi-day Sierra trips; lack of amenities means self-sufficiency is essential. Wind-sensitive activities, like photography or lakeside picnicking, are best timed for before 10 a.m.
Nearby June Lake Campground and the June Lake Loop offer lower-elevation alternatives with less afternoon wind exposure. Mammoth Mountain and the surrounding parks draw larger crowds once access roads clear. Coldwater's advantage is its quieter character and earlier seasonal opening compared to higher passes; the trade-off is exposure to afternoon thermals. Plan to arrive on a weekday morning when both wind and crowding are at their lowest.