Sleet Lake
Lake · Mammoth Lakes corridor
Sleet Lake sits at 11,070 feet in the Mammoth Lakes corridor, a high-Sierra alpine basin fed by snowmelt. Wind dominates the exposure; sheltered coves exist on calm mornings.
Wind funnels across the open water by mid-afternoon, driven by valley heating and elevation exposure. Mornings are typically calmer; skip the lake after 11 a.m. if wind matters for your activity. Water temperature remains frigid year-round; snow lingers into early summer.
Over the last 30 days, the average NoGo Score has held at 16.0, with wind averaging 13 mph but gusting to 39 mph on active days. The 30-day average temperature of 18 degrees Fahrenheit reflects late spring transition; expect mild variation through the coming week as thermal patterns shift.
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About Sleet Lake
Sleet Lake occupies a glacially-carved basin in the high Sierra east of Mammoth Mountain, accessible via the Mammoth Lakes corridor roads. The lake drains north into the Owens River system. Primary access is from the town of Mammoth Lakes via Highway 203 (the Mammoth Scenic Loop). The lake sits at 11,070 feet, making it a true alpine destination reached by dirt road in the final miles. Parking is limited and fills on clear weekends; arrive before 8 a.m. or plan for a walk-in approach.
Winter and spring conditions dominate the character of this location. Snow cover persists through late spring, with the 365-day maximum temperature reaching only 31 degrees Fahrenheit; the minimum has dipped to 4 degrees. The 30-day average temperature of 18 degrees reflects the current late-April shoulder season. Wind is the ruling hazard: the 30-day average wind of 13 mph masks afternoon gusts that have reached 39 mph. Crowding is sparse (30-day average of 4 on a 0 to 10 scale), partly because access deteriorates in snow and partly because fewer anglers and paddlers know the location compared to nearby Mammoth Lake or Twin Lakes.
Sleet Lake suits backcountry anglers, kayakers seeking solitude, and photographers of high-country alpine terrain. Expect cold water, wind exposure on the open basin, and limited facilities. Experienced visitors plan for early-morning departure, wind-protected coves on the northwest shore, and flexible timing around afternoon gales. The sparse crowds mean parking pressure is minimal; the trade-off is isolation if weather turns. Fishing pressure is light; cutthroat and brook trout populations remain under-exploited by Mammoth corridor standards. Paddling is possible but demanding; swells kick up fast once thermal winds arrive.
Nearby alternatives include Twin Lakes and Lake George, both closer to Mammoth town and offering easier access and more developed infrastructure. Mammoth Lake itself is warmer and more sheltered, drawing more anglers and day-use crowds. Sleet Lake appeals to those seeking alpine solitude and willing to accept cold, wind, and limited amenities in exchange for vastly fewer visitors and a wilder sensory experience.