Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

41.9°F

Measurement Time: Sunday, April 26, 2026, 5:00 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 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

21.1°F
Partly Cloudy
Partly Cloudy
16.2°F
21.1°F
94%
ESE 3.8 mph
8 mph
16.2°F
19.4°F
0 in
38%
6 mi
1018 mbar
0

Five Day Weather Forecast

Moderate snow
Mon
H: 36°F
L: 17°F
Patchy rain nearby
Tue
H: 45°F
L: 25°F
Patchy rain nearby
Wed
H: 52°F
L: 30°F
Patchy rain nearby
Thu
H: 56°F
L: 36°F
Patchy rain nearby
Fri
H: 60°F
L: 36°F

Air Quality

AQI: 1 - Good
PM2.5: 0.88 μg/m3
PM10: 1.28 μg/m3
Carbon Monoxide: 135.68 μg/m3
Nitrogen Dioxide: 1.18 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 108 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 12:56 AM
Sunset: 7:46 PM
Daylight: 13 hrs 38 mins
Moonrise: 4:12 PM
Moon Transit: 10:23 PM
Moonset: 4:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
12:00 AM - 12:00 AM

Minor Periods

3:42 PM - 5:12 PM
3:33 AM - 5:03 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Moderate snow
35.5°F
17.4°F
27.5°F
86%
0.04 in
93%
10%
7.2 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 1.01 μg/m3
PM10: 1.39 μg/m3
Carbon Monoxide: 136.4 μg/m3
Nitrogen Dioxide: 1.51 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 104.28 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 12:56 AM
Sunset: 7:46 PM
Daylight: 13 hrs 38 mins
Moonrise: 4:12 PM
Moon Transit: 10:23 PM
Moonset: 4:03 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
12:00 AM - 12:00 AM

Minor Periods

3:42 PM - 5:12 PM
3:33 AM - 5:03 AM

Action Rating: 2 out of 5

Tuesday, April 28, 2026

Weather Forecast

Patchy rain nearby
44.8°F
25.4°F
35°F
77%
0.03 in
85%
0%
7.2 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 2.04 μg/m3
PM10: 3.45 μg/m3
Carbon Monoxide: 132.88 μg/m3
Nitrogen Dioxide: 1.81 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 114 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 12:56 AM
Sunset: 7:47 PM
Daylight: 13 hrs 41 mins
Moonrise: 5:13 PM
Moon Transit: 11:05 PM
Moonset: 4:26 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

6:10 AM - 8:40 AM
12:00 AM - 12:00 AM

Minor Periods

4:43 PM - 6:13 PM
3:56 AM - 5:26 AM

Action Rating: 3 out of 5

Wednesday, April 29, 2026

Weather Forecast

Patchy rain nearby
51.6°F
30.2°F
40.8°F
64%
0.01 in
84%
0%
7.8 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 4.91 μg/m3
PM10: 8.86 μg/m3
Carbon Monoxide: 128.48 μg/m3
Nitrogen Dioxide: 1.73 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 119.36 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 12:55 AM
Sunset: 7:48 PM
Daylight: 13 hrs 43 mins
Moonrise: 6:15 PM
Moon Transit: 11:47 PM
Moonset: 4:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.5%

Best Times for Fishing or Hunting

Major Periods

6:52 AM - 9:22 AM
12:00 AM - 12:00 AM

Minor Periods

5:45 PM - 7:15 PM
4:19 AM - 5:49 AM

Action Rating: 3 out of 5

Thursday, April 30, 2026

Weather Forecast

Patchy rain nearby
55.9°F
35.9°F
45.2°F
57%
0.02 in
84%
0%
9.4 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 3.96 μg/m3
PM10: 8.09 μg/m3
Carbon Monoxide: 131.92 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 116.12 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 12:55 AM
Sunset: 7:49 PM
Daylight: 13 hrs 45 mins
Moonrise: 7:17 PM
Moon Transit: 12:00 AM
Moonset: 5:12 AM
Moon Phase: Full
Moon Illumination: 99.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:35 AM - 10:05 AM

Minor Periods

6:47 PM - 8:17 PM
4:42 AM - 6:12 AM

Action Rating: 5 out of 5

Friday, May 1, 2026

Weather Forecast

Patchy rain nearby
59.7°F
35.7°F
44.6°F
54%
0.01 in
83%
0%
9.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.21 μg/m3
PM10: 5.25 μg/m3
Carbon Monoxide: 135.69 μg/m3
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 108.54 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 12:55 AM
Sunset: 7:49 PM
Daylight: 13 hrs 47 mins
Moonrise: 8:20 PM
Moon Transit: 12:31 AM
Moonset: 5:39 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
8:19 AM - 10:49 AM

Minor Periods

7:50 PM - 9:20 PM
5:09 AM - 6:39 AM

Action Rating: 4 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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