Loading lake details...
Loading lake details...

Yosemite National Park, CA · Tuolumne County
Right Now
Clear
Water
70°
Wind
8 mph
WSW
Gusts
12 mph
Pressure
29.75
falling
Forecast - Sat, Jun 6
High / Low
69° / 50°
Wind
7 mph
gusts 22 mph
Precip
0%
UV
11
Sunrise
12:37 PM
Sunset
3:19 AM
Today Read
Hetch Hetchy ReservoirWind read
Calm
7 mph avg
Water read
70°
Warm-water bite
Air range
50° / 69°
today
Precip
0%
low concern
Today's forecast for Hetch Hetchy Reservoir has calm wind, 50F to 69F air temperatures, 0% chance of precipitation, and 70F water.
The planner reads this page's water temp, forecast, fish species, solunar timing, reports, and imagery context so you can decide what to throw, when to go, and when to move.
Today's AI read
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. Wind is not the main constraint, so timing and presentation can drive the plan. Check the solunar window against hourly wind and light.
Uses this lake data
Trip read from the AI planner
Green lightFishing Forecast
Last quarter
Major
12:14 PM - 2:44 PM
Minor
7:00 AM - 7:00 AM
Detailed temperature readings across your lake.
No credit card required for preview
Fish Species
2Water Temperature History
Current
74°
Jun 14
Low
43°
Feb 24
Average
62°
Last 12 Months
Warmest avg: August (79°F)
Coolest avg: February (46°F)
Rapid warming: April → May (+11°F)
Sharpest cooling: October → November (-13°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
12am - 11pm
Peak Wind
14 mph
1pm
Peak Gust
22 mph
highest gust
Pressure
29.82 inHg
rising
Visibility
20 mi
4% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Pressure stability helps plan windows
Tap chart points for pressure details
Nearby Lakes
Fishing Forecast
3/5Last quarter
Water at 70°F -- warm-water species active.
Fish Species
2Nearby Lakes
FAQ
Hetch Hetchy Reservoir covers 1892.02 acres (2.96 square miles) with a maximum depth of 95.90 meters (~315 feet).
Hetch Hetchy Reservoir is located in Yosemite National Park, Tuolumne County, CA. It is accessible to the public for outdoor activities.