Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

52.3°F

Measurement Time: Thursday, May 21, 2026, 6:15 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 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

43.9°F
Clear
Clear
42.2°F
43.9°F
63%
E 3.8 mph
8 mph
42.2°F
32.3°F
0 in
4%
6 mi
1013 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 64°F
L: 42°F
Sunny
Sat
H: 64°F
L: 42°F
Patchy rain nearby
Sun
H: 64°F
L: 43°F
Sunny
Mon
H: 63°F
L: 42°F
Sunny
Tue
H: 56°F
L: 38°F

Air Quality

AQI: 1 - Good
PM2.5: 5.78 μg/m3
PM10: 9.78 μg/m3
Carbon Monoxide: 129.68 μg/m3
Nitrogen Dioxide: 1.48 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 12:55 AM
Sunset: 8:08 PM
Daylight: 14 hrs 25 mins
Moonrise: 11:54 AM
Moon Transit: 6:54 PM
Moonset: 1:14 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

1:54 AM - 4:24 AM
6:24 PM - 8:54 PM

Minor Periods

11:24 AM - 12:54 AM
12:44 AM - 2:14 AM

Action Rating: 2 out of 5

Friday, May 22, 2026

Weather Forecast

Sunny
63.9°F
41.9°F
52.2°F
46%
0 in
0%
0%
13.6 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 6.16 μg/m3
PM10: 8.95 μg/m3
Carbon Monoxide: 131.24 μg/m3
Nitrogen Dioxide: 1.88 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 98.36 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 12:55 AM
Sunset: 8:08 PM
Daylight: 14 hrs 25 mins
Moonrise: 11:54 AM
Moon Transit: 6:54 PM
Moonset: 1:14 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

1:54 AM - 4:24 AM
6:24 PM - 8:54 PM

Minor Periods

11:24 AM - 12:54 AM
12:44 AM - 2:14 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Sunny
64.1°F
41.8°F
52.3°F
41%
0 in
0%
0%
11.6 mph
10.2


Air Quality

AQI: 1 - Good
PM2.5: 7.55 μg/m3
PM10: 11.95 μg/m3
Carbon Monoxide: 129.36 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 110.24 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:55 AM
Sunset: 8:09 PM
Daylight: 14 hrs 27 mins
Moonrise: 1:02 PM
Moon Transit: 7:40 PM
Moonset: 1:43 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

2:42 AM - 5:12 AM
7:10 PM - 9:40 PM

Minor Periods

12:32 AM - 2:02 PM
1:13 AM - 2:43 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
64.2°F
42.6°F
52.8°F
46%
0.01 in
63%
0%
11.9 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 9.68 μg/m3
PM10: 17.75 μg/m3
Carbon Monoxide: 129.16 μg/m3
Nitrogen Dioxide: 1.59 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 118.84 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:55 AM
Sunset: 8:10 PM
Daylight: 14 hrs 28 mins
Moonrise: 2:06 PM
Moon Transit: 8:23 PM
Moonset: 2:08 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

3:27 AM - 5:57 AM
7:53 PM - 10:23 PM

Minor Periods

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

Action Rating: 4 out of 5

Monday, May 25, 2026

Weather Forecast

Sunny
63.2°F
41.7°F
51.5°F
51%
0 in
0%
0%
13.4 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 10.37 μg/m3
PM10: 17.71 μg/m3
Carbon Monoxide: 130.47 μg/m3
Nitrogen Dioxide: 1.67 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 110.24 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 12:55 AM
Sunset: 8:11 PM
Daylight: 14 hrs 30 mins
Moonrise: 3:08 PM
Moon Transit: 9:05 PM
Moonset: 2:31 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

4:10 AM - 6:40 AM
8:35 PM - 11:05 PM

Minor Periods

2:38 PM - 4:08 PM
2:01 AM - 3:31 AM

Action Rating: 3 out of 5

Tuesday, May 26, 2026

Weather Forecast

Sunny
55.8°F
37.7°F
44.1°F
55%
0 in
0%
0%
12.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 11.04 μg/m3
PM10: 21.14 μg/m3
Carbon Monoxide: 149.7 μg/m3
Nitrogen Dioxide: 1.87 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 101.08 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:55 AM
Sunset: 8:11 PM
Daylight: 14 hrs 31 mins
Moonrise: 4:09 PM
Moon Transit: 9:47 PM
Moonset: 2:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

4:51 AM - 7:21 AM
9:17 PM - 11:47 PM

Minor Periods

3:39 PM - 5:09 PM
2:24 AM - 3:54 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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