Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

54.3°F

Measurement Time: Tuesday, July 14, 2026, 9:00 PM PDT

Temperature Locations

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Local Points of Interest

Hetch Hetchy Reservoir; Yosemite National Park; White Wolf, CA

Tuolumne River

Station Name: TUOLUMNE R NR HETCH HETCHY CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 3,484 feet

Nearest Address:
Hetch Hetchy Road
Groveland, CA 95321
Tuolumne County

GPS Coordinates: 37.93742147, -119.7982326

Nearby Water Temperatures

Cherry Creek, Groveland, CA (6.8 mi)
Tuolumne River, Groveland, CA (7.7 mi)
Tuolumne River, Groveland, CA (9.1 mi)
Tuolumne River, Groveland, CA (10.1 mi)
Merced River, Yosemite Valley, CA (19.3 mi)
Middle Fork San Joaquin River, Mammoth Lakes, CA (44.2 mi)
Deadman Creek, Mammoth Lakes, CA (48.6 mi)
Hot Creek, Mammoth Lakes, CA (55.1 mi)
Hot Creek, Mammoth Lakes, CA (55.6 mi)
Hot Creek, Mammoth Lakes, CA (56.7 mi)
San Joaquin River, Friant, CA (66 mi)
Trout Creek, South Lake Tahoe, CA (68.5 mi)
Upper Truckee River, South Lake Tahoe, CA (68.9 mi)
Walker Lake, Walker Lake, NV (78.6 mi)
General Creek, Tahoma, CA (78.9 mi)

Weather for Groveland, California

Current Weather

52.6°F
Clear
Clear
48.2°F
52.6°F
63%
E 4.9 mph
10.3 mph
51.3°F
40.6°F
0 in
4%
6 mi
1020 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 78°F
L: 52°F
Sunny
Thu
H: 78°F
L: 52°F
Sunny
Fri
H: 77°F
L: 52°F
Sunny
Sat
H: 78°F
L: 52°F
Partly Cloudy
Sun
H: 75°F
L: 53°F

Air Quality

AQI: 1 - Good
PM2.5: 3.7 μg/m3
PM10: 4.1 μg/m3
Carbon Monoxide: 93 μg/m3
Nitrogen Dioxide: 4.8 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 38 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:05 PM
Sunset: 8:21 PM
Daylight: 14 hrs 32 mins
Moonrise: 7:12 AM
Moon Transit: 2:32 PM
Moonset: 9:40 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:02 PM - 4:32 PM

Minor Periods

9:10 PM - 10:40 PM
6:42 AM - 8:12 AM

Action Rating: 3 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
77.8°F
51.9°F
63.9°F
43%
0 in
1%
0%
12.5 mph
11.6


Air Quality

AQI: 1 - Good
PM2.5: 3.4 μg/m3
PM10: 4.15 μg/m3
Carbon Monoxide: 94.5 μg/m3
Nitrogen Dioxide: 1.96 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 74.42 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:05 PM
Sunset: 8:21 PM
Daylight: 14 hrs 32 mins
Moonrise: 7:12 AM
Moon Transit: 2:32 PM
Moonset: 9:40 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:02 PM - 4:32 PM

Minor Periods

9:10 PM - 10:40 PM
6:42 AM - 8:12 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
77.5°F
52.3°F
64.1°F
33%
0 in
1%
0%
12.3 mph
11.9


Air Quality

AQI: 1 - Good
PM2.5: 3.22 μg/m3
PM10: 4.18 μg/m3
Carbon Monoxide: 91.29 μg/m3
Nitrogen Dioxide: 1.78 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 80.71 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:05 PM
Sunset: 8:21 PM
Daylight: 14 hrs 31 mins
Moonrise: 8:28 AM
Moon Transit: 3:24 PM
Moonset: 10:10 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:54 PM - 5:24 PM

Minor Periods

9:40 PM - 11:10 PM
7:58 AM - 9:28 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
77.1°F
51.7°F
63.5°F
29%
0 in
1%
0%
12.3 mph
12.1


Air Quality

AQI: 1 - Good
PM2.5: 3.96 μg/m3
PM10: 6.1 μg/m3
Carbon Monoxide: 90.21 μg/m3
Nitrogen Dioxide: 1.34 μg/m3
Sulphur Dioxide: 0.47 μg/m3
Ozone: 91.42 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:05 PM
Sunset: 8:20 PM
Daylight: 14 hrs 30 mins
Moonrise: 9:38 AM
Moon Transit: 4:12 PM
Moonset: 10:36 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:42 PM - 6:12 PM

Minor Periods

10:06 PM - 11:36 PM
9:08 AM - 10:38 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
78.1°F
51.9°F
64.7°F
31%
0 in
2%
0%
13.4 mph
11.7


Air Quality

AQI: 1 - Good
PM2.5: 4.97 μg/m3
PM10: 8.31 μg/m3
Carbon Monoxide: 99.78 μg/m3
Nitrogen Dioxide: 1.27 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 103.33 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:05 PM
Sunset: 8:20 PM
Daylight: 14 hrs 28 mins
Moonrise: 10:46 AM
Moon Transit: 4:58 PM
Moonset: 11:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:28 PM - 6:58 PM

Minor Periods

10:30 PM - 12:00 PM
10:16 AM - 11:46 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Partly Cloudy
75.3°F
53.4°F
64.6°F
36%
0.02 in
36%
0%
9.4 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.27 μg/m3
PM10: 8.33 μg/m3
Carbon Monoxide: 124.17 μg/m3
Nitrogen Dioxide: 3.38 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 81.33 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:05 PM
Sunset: 8:19 PM
Daylight: 14 hrs 27 mins
Moonrise: 11:51 AM
Moon Transit: 5:41 PM
Moonset: 11:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

12:44 AM - 3:14 AM
5:11 PM - 7:41 PM

Minor Periods

12:00 AM - 12:00 AM
11:21 AM - 12:51 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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