Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

36.7°F

Measurement Time: Thursday, January 8, 2026, 6:30 AM PST

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 A GRAND CYN OF TUOLUMNE AB HETCH HETCHY
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 3,842 feet

Nearest Address:
White Wolf Road
Groveland, CA 95321
Tuolumne County

GPS Coordinates: 37.9165884, -119.6598938

Nearby Water Temperatures

Tuolumne River, Groveland, CA (7.7 mi)
Merced River, Yosemite Valley, CA (13.9 mi)
Cherry Creek, Groveland, CA (14.5 mi)
Tuolumne River, Groveland, CA (15.9 mi)
Tuolumne River, Groveland, CA (17.1 mi)
Middle Fork San Joaquin River, Mammoth Lakes, CA (37 mi)
Deadman Creek, Mammoth Lakes, CA (41 mi)
Hot Creek, Mammoth Lakes, CA (47.6 mi)
Hot Creek, Mammoth Lakes, CA (48.1 mi)
Hot Creek, Mammoth Lakes, CA (49.1 mi)
San Joaquin River, Friant, CA (64.5 mi)
Trout Creek, South Lake Tahoe, CA (71.4 mi)
Upper Truckee River, South Lake Tahoe, CA (71.8 mi)
Walker Lake, Walker Lake, NV (74.3 mi)
Walker Lake, Walker Lake, NV (76.8 mi)

Weather for Groveland, California

Current Weather

26.2°F
Sunny
Sunny
15.7°F
26.2°F
55%
N 4.9 mph
6.2 mph
15.7°F
13.3°F
0 in
0%
9 mi
1021 mbar
1.6

Five Day Weather Forecast

Moderate or heavy snow showers
Thu
H: 27°F
L: 12°F
Sunny
Fri
H: 39°F
L: 18°F
Sunny
Sat
H: 43°F
L: 23°F
Sunny
Sun
H: 41°F
L: 23°F
Sunny
Mon
H: 42°F
L: 27°F

Air Quality

AQI: 1 - Good
PM2.5: 2.28 μg/m3
PM10: 3.08 μg/m3
Carbon Monoxide: 139.68 μg/m3
Nitrogen Dioxide: 1.68 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 96 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:05 AM
Sunset: 4:57 PM
Daylight: 9 hrs 42 mins
Moonrise: 11:04 PM
Moon Transit: 4:21 AM
Moonset: 10:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
12:08 AM - 2:38 PM

Minor Periods

12:00 AM - 12:00 AM
10:01 AM - 11:31 AM

Action Rating: 2 out of 5

Thursday, January 8, 2026

Weather Forecast

Moderate or heavy snow showers
27.1°F
11.6°F
19.5°F
70%
0.06 in
64%
4%
13.6 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 1.62 μg/m3
PM10: 1.97 μg/m3
Carbon Monoxide: 136.08 μg/m3
Nitrogen Dioxide: 2.17 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 86.88 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:05 AM
Sunset: 4:57 PM
Daylight: 9 hrs 42 mins
Moonrise: 11:04 PM
Moon Transit: 4:21 AM
Moonset: 10:31 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
12:08 AM - 2:38 PM

Minor Periods

12:00 AM - 12:00 AM
10:01 AM - 11:31 AM

Action Rating: 2 out of 5

Friday, January 9, 2026

Weather Forecast

Sunny
38.8°F
17.6°F
28.8°F
37%
0 in
0%
0%
13.6 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 1.81 μg/m3
PM10: 2.41 μg/m3
Carbon Monoxide: 145.48 μg/m3
Nitrogen Dioxide: 1.16 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 101.48 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:05 AM
Sunset: 4:58 PM
Daylight: 9 hrs 43 mins
Moonrise: 12:04 AM
Moon Transit: 5:03 AM
Moonset: 10:53 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

4:33 AM - 7:03 AM
12:49 AM - 3:19 PM

Minor Periods

10:23 AM - 11:53 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, January 10, 2026

Weather Forecast

Sunny
43°F
22.7°F
30.5°F
50%
0 in
0%
0%
10.7 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.4 μg/m3
PM10: 1.67 μg/m3
Carbon Monoxide: 148.76 μg/m3
Nitrogen Dioxide: 1.54 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 99.88 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:06 AM
Sunset: 4:58 PM
Daylight: 9 hrs 44 mins
Moonrise: 12:05 AM
Moon Transit: 5:44 AM
Moonset: 11:16 AM
Moon Phase: Last Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

5:14 AM - 7:44 AM
1:31 PM - 4:01 PM

Minor Periods

10:46 AM - 12:16 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, January 11, 2026

Weather Forecast

Sunny
41.1°F
23.2°F
30°F
60%
0 in
0%
0%
12.5 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.2 μg/m3
PM10: 1.27 μg/m3
Carbon Monoxide: 123.88 μg/m3
Nitrogen Dioxide: 1.87 μg/m3
Sulphur Dioxide: 0.79 μg/m3
Ozone: 94.48 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:06 AM
Sunset: 4:59 PM
Daylight: 9 hrs 45 mins
Moonrise: 1:05 AM
Moon Transit: 6:26 AM
Moonset: 11:40 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

5:56 AM - 8:26 AM
2:13 PM - 4:43 PM

Minor Periods

11:10 AM - 12:40 AM
12:35 AM - 2:05 AM

Action Rating: 3 out of 5

Monday, January 12, 2026

Weather Forecast

Sunny
41.8°F
26.9°F
30.5°F
59%
0 in
0%
0%
13.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.25 μg/m3
PM10: 1.31 μg/m3
Carbon Monoxide: 121.47 μg/m3
Nitrogen Dioxide: 2.42 μg/m3
Sulphur Dioxide: 0.79 μg/m3
Ozone: 90.08 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:07 AM
Sunset: 5:00 PM
Daylight: 9 hrs 47 mins
Moonrise: 2:06 AM
Moon Transit: 7:10 AM
Moonset: 12:08 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

6:40 AM - 9:10 AM
2:58 PM - 5:28 PM

Minor Periods

11:38 AM - 1:08 PM
1:36 AM - 3:06 AM

Action Rating: 3 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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