Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

47.1°F

Measurement Time: Wednesday, April 22, 2026, 8:00 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

16.2°F
Clear
Clear
4.1°F
16.2°F
65%
ENE 10.1 mph
21.1 mph
4.1°F
6.7°F
0 in
2%
6 mi
1026 mbar
0

Five Day Weather Forecast

Light freezing rain
Thu
H: 39°F
L: 15°F
Moderate or heavy snow showers
Fri
H: 40°F
L: 25°F
Heavy snow
Sat
H: 34°F
L: 26°F
Light snow showers
Sun
H: 32°F
L: 23°F
Light freezing rain
Mon
H: 36°F
L: 20°F

Air Quality

AQI: 1 - Good
PM2.5: 1.68 μg/m3
PM10: 2.88 μg/m3
Carbon Monoxide: 132.68 μg/m3
Nitrogen Dioxide: 0.88 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 136 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 12:57 AM
Sunset: 7:43 PM
Daylight: 13 hrs 30 mins
Moonrise: 11:43 AM
Moon Transit: 7:17 PM
Moonset: 2:03 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

2:12 AM - 4:42 AM
6:47 PM - 9:17 PM

Minor Periods

11:13 AM - 12:43 AM
1:33 AM - 3:03 AM

Action Rating: 2 out of 5

Thursday, April 23, 2026

Weather Forecast

Light freezing rain
38.6°F
14.8°F
28.3°F
80%
0.01 in
85%
0%
10.5 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 1.65 μg/m3
PM10: 2.34 μg/m3
Carbon Monoxide: 141.28 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 0.77 μg/m3
Ozone: 120.08 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 12:57 AM
Sunset: 7:43 PM
Daylight: 13 hrs 30 mins
Moonrise: 11:43 AM
Moon Transit: 7:17 PM
Moonset: 2:03 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

2:12 AM - 4:42 AM
6:47 PM - 9:17 PM

Minor Periods

11:13 AM - 12:43 AM
1:33 AM - 3:03 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Moderate or heavy snow showers
40.1°F
25.2°F
33°F
84%
0.1 in
89%
3%
9.8 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 2.68 μg/m3
PM10: 4.15 μg/m3
Carbon Monoxide: 143.36 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 117.28 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:57 AM
Sunset: 7:44 PM
Daylight: 13 hrs 32 mins
Moonrise: 12:55 AM
Moon Transit: 8:09 PM
Moonset: 2:42 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

3:07 AM - 5:37 AM
7:39 PM - 10:09 PM

Minor Periods

12:25 AM - 1:55 PM
2:12 AM - 3:42 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Heavy snow
33.8°F
25.8°F
29.6°F
92%
0.65 in
77%
46%
6.5 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 4.09 μg/m3
PM10: 6.59 μg/m3
Carbon Monoxide: 132.64 μg/m3
Nitrogen Dioxide: 1.69 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 121.56 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:57 AM
Sunset: 7:44 PM
Daylight: 13 hrs 34 mins
Moonrise: 2:04 PM
Moon Transit: 8:57 PM
Moonset: 3:13 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
8:27 PM - 10:57 PM

Minor Periods

1:34 PM - 3:04 PM
2:43 AM - 4:13 AM

Action Rating: 3 out of 5

Sunday, April 26, 2026

Weather Forecast

Light snow showers
32.2°F
22.5°F
27.9°F
95%
0.11 in
77%
61%
6.5 mph
2.9


Air Quality

AQI: 1 - Good
PM2.5: 1.47 μg/m3
PM10: 2.24 μg/m3
Carbon Monoxide: 139.11 μg/m3
Nitrogen Dioxide: 1.5 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 111.12 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 12:56 AM
Sunset: 7:45 PM
Daylight: 13 hrs 36 mins
Moonrise: 3:09 PM
Moon Transit: 9:41 PM
Moonset: 3:40 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
9:11 PM - 11:41 PM

Minor Periods

2:39 PM - 4:09 PM
3:10 AM - 4:40 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Light freezing rain
36.2°F
19.9°F
27.4°F
84%
0.02 in
58%
8%
6.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.44 μg/m3
PM10: 2.15 μg/m3
Carbon Monoxide: 143.95 μg/m3
Nitrogen Dioxide: 1.97 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 102.62 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 12:56 AM
Sunset: 7:46 PM
Daylight: 13 hrs 39 mins
Moonrise: 4:13 PM
Moon Transit: 10:24 PM
Moonset: 4:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

5:27 AM - 7:57 AM
12:00 AM - 12:00 AM

Minor Periods

3:43 PM - 5:13 PM
3:34 AM - 5:04 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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