Moraine Mountain
Peak · 9,773 ft · Yosemite corridor
Moraine Mountain is a 9,773-foot peak in the Yosemite corridor of California's Sierra Nevada. A high-altitude perch above glacially-carved terrain, it sits exposed to afternoon wind funneling off the high country.
Wind dominates here. The 30-day average is 10 mph, but afternoon gusts funnel across the exposed summit and nearby drainages regularly. Morning windows are calmer. Temperature swings 28 degrees Fahrenheit between seasons; expect 28°F average in late spring. Head early or wait for high-pressure stability.
Over the last 30 days, Moraine Mountain averaged a NoGo Score of 33, with wind averaging 10 mph and temperatures holding at 28°F. The week ahead will show how wind and crowding respond to the shoulder season. Check the chart below for the rolling 30-day trend and the 7-day forecast to plan your approach window.
30 days back / 7 days forward
Today's score by factor
About Moraine Mountain
Moraine Mountain sits at 9,773 feet in the high Sierra Nevada, within the Yosemite corridor east of the main park. Access requires a high-clearance vehicle or a multi-hour approach on foot from Highway 120 near Tenaya Lake or from the eastern Sierra via Highway 395 and local trailheads. The peak is remote and rarely crowded (average crowding score 3 across 30 days), making it a quieter alternative to Yosemite Valley summits. The nearest gateway towns are Lee Vining to the southeast and Groveland to the west, both 45 to 90 minutes away depending on your exact trailhead.
Winter and early spring dominate conditions here. The rolling 365-day temperature range spans 14°F to 42°F, reflecting the zone's harsh alpine winters and brief summer warmth. Snowpack persists well into late spring; avalanche terrain is present, and early-season travel demands SAC avalanche center awareness and current stability assessments. Wind averages 10 mph across the last 30 days but peaks at 30 mph during high-pressure transitions and afternoon heating. The 30-day NoGo Score averaged 33, indicating frequent wind and weather constraints. Late summer and early fall offer the most stable windows, with lower wind and drier conditions. Spring travel is viable only after snowpack consolidation and when SAC publishes low-to-moderate avalanche forecasts.
Moraine Mountain appeals to experienced high-Sierra hikers, mountaineers scouting approach routes, and climbers building altitude for technical objectives nearby. Solitude is the main draw; expect to share the summit rarely. Parking is minimal at most trailheads, so arrive before dawn. Afternoon wind is predictable and severe; start descents by early afternoon. Bring layers for temperature swings and a reliable weather radio or sat communicator. The peak's low base popularity (0.2) means trail conditions are rarely reported. Local knowledge or recent online beta is essential before committing.
Nearby peaks in the Yosemite corridor include Cathedral Range summits to the west and the high desert volcanoes of the eastern Sierra to the south. Tenaya Lake, visible from upper elevations, offers a more accessible water-based alternative in calm mornings. If Moraine Mountain's exposure and remoteness feel too marginal, the Whitney Portal area south of Highway 395 offers higher summits with more maintained infrastructure and community beta. For ski or snowshoe access in late winter, check current Highway 120 and 395 conditions; closures are common and unpredictable before late April.