Blue Jay Lake #1
Lake · Mammoth Lakes corridor
Blue Jay Lake #1 sits at 10,318 feet in the Mammoth Lakes corridor of California's Sierra Nevada. This high-elevation alpine lake offers reliable calm conditions in early morning and typical wind by afternoon.
Morning glass gives way to afternoon wind funneling off the open water. The 30-day average wind of 9 mph masks daily swings; expect 15 to 20 mph gusts by mid-day. Temperature averages 33 degrees Fahrenheit across the rolling month. Crowding remains light; this is not a destination lake.
Blue Jay Lake #1 has averaged a NoGo Score of 13 over the past 30 days, with a low of 5 and a high of 31. The 30-day average wind of 9 mph is typical for this elevation and exposure. Temperatures hover near 33 degrees Fahrenheit on average, and the lake sees minimal foot traffic. The week ahead will show whether spring warming continues to push temperatures higher and whether afternoon wind patterns hold steady.
30 days back / 7 days forward
Today's score by factor
About Blue Jay Lake #1
Blue Jay Lake #1 is a small alpine lake at 10,318 feet elevation in the Mammoth Lakes corridor. Access is via Highway 203 west from US 395 near Mammoth Lakes, then trailhead approach from the lakes basin. The lake sits in the high Sierra between the main Mammoth crest and the lower Sierra foothills. Parking is typically available at the trailhead; this lake draws far fewer visitors than the main Mammoth basin lakes and Twin Lakes complex. Early morning is the only reliable access for calm water; afternoon is almost always windy.
Spring and early summer bring rapid warming and snowmelt runoff. The 365-day temperature range spans 20 to 50 degrees Fahrenheit, confirming the high-elevation volatility. Winter snow typically clears the lake basin by late spring; summer and early fall offer the longest stable season. The 30-day average crowding of 4 out of 10 reflects minimal popularity compared to lower-elevation Mammoth basin lakes. Wind is the dominant constraint; the rolling 30-day average of 9 mph masks frequent afternoon gusts to 24 mph.
Blue Jay Lake #1 suits small-group hikes, fishing, and light camping. The lake is too exposed for afternoon paddling or water sports. Plan water activities for dawn and early morning only; skip any mid-day or afternoon outings if calm conditions matter. The lake is reachable as a day trip from Mammoth Lakes but can also anchor a backcountry loop with the adjacent Blue Jay Lake #2 and nearby ponds. Experienced hikers treat this as a link in a longer traversal rather than a destination in its own right.
The Mammoth Lakes corridor offers dozens of alpine lakes at similar elevation. Horseshoe Lake to the south and the Twin Lakes complex to the northwest sit at slightly lower elevations and see heavier traffic. Blue Jay Lake #1 remains quieter precisely because it sits higher and farther from the main basin access trails. Visitors seeking solitude and willing to start before dawn will find consistent reward; afternoon visitors will encounter wind and find the lake less rewarding than the main Mammoth basin lakes.