Lyell Canyon Trailhead
Trailhead · Yosemite corridor
Lyell Canyon Trailhead sits at 8704 feet in Yosemite's high Sierra corridor, accessing glacier-fed meadows and sustained alpine terrain. Wind and snow dictate the calendar here more than anywhere in the valley below.
Mornings are typically calm; afternoon wind funnels up-canyon and peaks in late day. Temperature swings from near freezing at dawn to the low 30s by afternoon. Snow lingers well into late spring. Wind gusts to 30 mph on exposed slopes.
Over the last 30 days, the 30-day average wind has held at 10 mph with temperatures averaging 26 degrees Fahrenheit. The NoGo score averaged 21, meaning conditions were marginal or poor more often than not. Expect the next week to follow the same pattern: morning windows are short, crowding stays light, and afternoon deterioration is reliable.
30 days back / 7 days forward
Today's score by factor
About Lyell Canyon Trailhead
Lyell Canyon Trailhead is the primary jump-off for the Lyell Canyon route and the approach to Donohue Pass and the Sierra backcountry beyond. The trailhead sits at the headwaters of the Tuolumne River drainage, roughly 10 miles up the Tioga Road (Highway 120) from Tenaya Lake, at the eastern edge of the Yosemite corridor proper. The parking area is unimproved and fills quickly on weekends; arrive by mid-morning or plan to find overflow spots a quarter-mile downslope. The drive from Yosemite Valley takes 1.5 to 2 hours via the valley road and Highway 120 east. From the Bay Area, allow 4 to 5 hours via Highway 80 east and Highway 395 north.
This is high-elevation snowpack country. The 30-day average temperature of 26 degrees Fahrenheit reflects the elevation and season; expect the minimum to dip to 10 degrees or below on clear nights and the maximum to reach the low 30s on calm afternoons. Snow typically blocks access until late spring; check road closure status for Highway 120 before driving. Wind averages 10 mph but gusts to 30 mph on exposed ridges and canyon walls. The 30-day NoGo score averaged 21, indicating poor to marginal conditions were the norm. Crowding remains light, averaging 21 across the same period, because the high pass and snow shield most visitors.
Lyell Canyon Trailhead suits hikers and backpackers targeting multi-day routes to the Sierra crest. Day hikers use it for glacier views, meadow photography, and moderate alpine walks. Experienced parties heading to the high lakes and passes rely on this access. Parking stress is minimal compared to valley trailheads, but afternoon wind and rapid weather swings demand an early start and a solid turnaround time. Bring more insulation and shell gear than you think you need; the elevation, exposure, and water crossings make retreat necessary if conditions deteriorate. Winter and early spring are inaccessible; mid-summer offers the longest weather window but also the most crowding.
Cathedral Lakes Trailhead, 6 miles west via Highway 120, offers a lower-elevation alternative with better early-season access and different scenery. Tenaya Lake, just downslope and west, is calmer and warmer in afternoon but lacks the alpine character. The Yosemite corridor includes dozens of sub-8000-foot options if snow, wind, or crowding at Lyell Canyon becomes a factor. Lembert Dome, on Highway 120 just east of the trailhead, provides unobstructed wind and temperature readouts for real-time decision-making.