Lower Twin Lake Campground
Campground · Yosemite corridor
Lower Twin Lake Campground sits at 7,113 feet in the Yosemite corridor's high Sierra, where afternoon wind funnels off the glacial lake. Calmer mornings reward early risers; afternoons turn predictable and brisk.
Wind dominates here. The 30-day average of 12 mph understates the afternoon spike; gusts reach 33 mph by mid-day. Morning paddlers and anglers get glassy water before 10 a.m. Afternoon hikers and swimmers face consistent headwind. Exposure to the open basin means no thermal shelter.
Over the last 30 days, Lower Twin Lake has averaged 12 mph wind and 38 degrees Fahrenheit with a crowding score of 12. The typical NoGo Score of 16 reflects reliable afternoon wind rather than impassable conditions. The week ahead will track normal seasonal patterns for early season; expect calm mornings to evaporate by midday.
30 days back / 7 days forward
Today's score by factor
About Lower Twin Lake Campground
Lower Twin Lake Campground occupies a gravelly bench on the north shore of Lower Twin Lake in the high Sierra east of Yosemite Valley. Highway 395 runs south from Lee Vining through the Mono Basin; the campground sits roughly 30 miles south on Highway 395, then east via local roads toward the Twin Lakes. The site perches at 7,113 feet elevation, well above the Valley floor. Access is most reliable late spring through early fall when snow clears the local approach roads. Winter closure is common. The campground is modest, lightly developed, and draws fewer crowds than Yosemite proper.
Wind is the defining seasonal variable. The 30-day average of 12 mph and historical maximum of 33 mph reveal a location exposed to afternoon funneling off the glacial lake basin. Morning conditions from dawn through mid-morning are notably calmer, often glassy until 10 a.m. Temperature swings are sharp; the rolling 365-day range spans 20 to 54 degrees Fahrenheit. Crowding stays low year-round, averaging 12 on the 30-day window. Spring and early summer see the sharpest afternoon wind. Late summer and early fall offer fractionally less aggressive gusts but still predictable afternoon uplift. Winter snowpack blocks access entirely.
This location suits early-morning anglers, calm-water paddlers, and campers who anchor their days around dawn and dusk activity. Afternoon hikers will fight headwind; plan ridge climbs or sheltered drainages if windy conditions bother you. Swimmers and loungers should target the morning window before 11 a.m. The low crowding score and modest facilities mean you are unlikely to jostle for parking or campsites even on summer weekends. Bring wind-resistant shelter and layers; the 38-degree average masks the drop from sun to shade.
The Twin Lakes basin sits in a rain-shadow drainage with longer dry seasons than the western Sierra. Nearby June Lake offers similar elevation and access via Highway 395 but sits in a narrower canyon with marginally lower afternoon wind. Mammoth Mountain lies south, offering higher terrain and heavier snowpack but also stronger winds at exposed ridges. For sheltered lake paddling, Convict Lake to the south trades the afternoon funneling for steeper terrain and crowds. Anglers weighing Lower Twin should factor the consistent afternoon chop; early-morning trips and evening returns are standard local practice.