Bull Lake
Lake · Yosemite corridor
Bull Lake sits at 8638 feet in the Yosemite corridor's high Sierra, a snow-fed alpine water body accessible via Highway 120. Calmer than exposed eastern Sierra lakes, it anchors a quieter corner of the range.
Wind accelerates off the lake surface in afternoon hours, typically reaching 11 mph average over 30 days. Morning hours offer flat water and clearer visibility. Temperatures average 30 degrees Fahrenheit in the rolling 30-day window, dropping well below freezing at night. Cold water and variable afternoon gusts define the place.
The 30-day average wind of 11 mph reflects typical spring conditions at this elevation; peaks reach 29 mph when systems move through. Crowding averages 6 out of 10, a low baseline for the corridor. The week ahead will track recent patterns: expect stable mornings and strengthening afternoon wind. Temperature swings from lows near 16 degrees Fahrenheit to highs around 45 degrees Fahrenheit across the rolling year.
30 days back / 7 days forward
Today's score by factor
About Bull Lake
Bull Lake lies in the high Yosemite corridor at 8638 feet elevation, accessed via Highway 120 from the west (Yosemite Valley approach) or from the June Lake Loop area to the east. The lake drains into the Tuolumne River system and sits in terrain dominated by granite peaks and lodgepole pine. Parking and trailhead access are minimal; the lake is best reached as part of a backpack or day-hike loop rather than a roadside stop. Winter closure of Highway 120 over Tioga Pass isolates the eastern approach; confirm road status before planning.
Conditions swing sharply by hour and season. The rolling 30-day average wind of 11 mph masks afternoon acceleration; mornings typically offer half that, while peak gusts reach 29 mph when weather systems cross the range. Temperature averages 30 degrees Fahrenheit across the rolling 30-day window but varies from 16-degree lows to 45-degree highs across the rolling year. Spring brings rapid snowmelt and cold water; early summer offers the warmest access window. Crowding averages 6 out of 10, reflecting the lake's lower profile compared to Tenaya Lake or Cathedral Lake.
Paddling and swimming dominate use, with the lake calm enough for small boats in early morning hours. Avoid afternoon sessions when wind is strongest. Fishing opportunity exists but weather windows are narrow; plan for overnight trips to capture multiple daylight windows. Hikers treat Bull Lake as a destination within a larger loop rather than a standalone walk. Expect solitude compared to valley-floor destinations, but also expect snow or ice well into late spring depending on the year. Water temperature stays near freezing year-round; immersion risk is acute.
The nearby Tenaya Lake corridor, 15 miles northwest, receives three to four times the foot traffic and wind exposure. Cathedral Lake and Glen Aulin (accessible via the Cathedral Lakes Trail) draw similar high-country users but sit lower and warmer. Bull Lake suits explorers comfortable with minimal infrastructure and willing to camp or backpack; it is not a day-use beach destination. The low base popularity of 0.25 and modest crowding average reflect accurate conditions: this is a genuine backcountry water body, not a park amenity.