Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

51.8°F

Measurement Time: Sunday, May 24, 2026, 7:30 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

43.2°F
Clear
Clear
42.5°F
43.2°F
66%
E 2.7 mph
5.6 mph
42.5°F
32.8°F
0 in
5%
6 mi
1015 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 61°F
L: 41°F
Patchy rain nearby
Tue
H: 45°F
L: 29°F
Moderate or heavy snow showers
Wed
H: 38°F
L: 27°F
Moderate rain
Thu
H: 41°F
L: 26°F
Sunny
Fri
H: 54°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 4.18 μg/m3
PM10: 7.38 μg/m3
Carbon Monoxide: 127.68 μg/m3
Nitrogen Dioxide: 1.28 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 93 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

Monday, May 25, 2026

Weather Forecast

Sunny
61.1°F
40.5°F
50.3°F
55%
0 in
0%
0%
12.8 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 4.33 μg/m3
PM10: 6.99 μg/m3
Carbon Monoxide: 123.76 μg/m3
Nitrogen Dioxide: 1.81 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 93.28 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

Patchy rain nearby
45.2°F
29.3°F
38.8°F
74%
0.07 in
85%
12%
15.9 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 6.27 μg/m3
PM10: 12.41 μg/m3
Carbon Monoxide: 121.04 μg/m3
Nitrogen Dioxide: 1.48 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 108.72 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

Wednesday, May 27, 2026

Weather Forecast

Moderate or heavy snow showers
37.5°F
26.8°F
32.4°F
85%
0.5 in
78%
39%
7.8 mph
5.5


Air Quality

AQI: 1 - Good
PM2.5: 3.57 μg/m3
PM10: 6.68 μg/m3
Carbon Monoxide: 112.56 μg/m3
Nitrogen Dioxide: 1.82 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 87.56 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:55 AM
Sunset: 8:12 PM
Daylight: 14 hrs 32 mins
Moonrise: 5:10 PM
Moon Transit: 10:29 PM
Moonset: 3:17 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

5:34 AM - 8:04 AM
12:00 AM - 12:00 AM

Minor Periods

4:40 PM - 6:10 PM
2:47 AM - 4:17 AM

Action Rating: 3 out of 5

Thursday, May 28, 2026

Weather Forecast

Moderate rain
40.6°F
26°F
34.5°F
86%
0.23 in
89%
10%
6.9 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 1.7 μg/m3
PM10: 2.75 μg/m3
Carbon Monoxide: 111.23 μg/m3
Nitrogen Dioxide: 1.51 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 79.52 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:56 AM
Sunset: 8:13 PM
Daylight: 14 hrs 33 mins
Moonrise: 6:12 PM
Moon Transit: 11:14 PM
Moonset: 3:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.7%

Best Times for Fishing or Hunting

Major Periods

6:17 AM - 8:47 AM
12:00 AM - 12:00 AM

Minor Periods

5:42 PM - 7:12 PM
3:12 AM - 4:42 AM

Action Rating: 2 out of 5

Friday, May 29, 2026

Weather Forecast

Sunny
54.1°F
29.2°F
38.2°F
74%
0 in
0%
0%
8.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.66 μg/m3
PM10: 4.62 μg/m3
Carbon Monoxide: 119.35 μg/m3
Nitrogen Dioxide: 2.77 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 74.92 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:56 AM
Sunset: 8:14 PM
Daylight: 14 hrs 35 mins
Moonrise: 7:13 PM
Moon Transit: 12:00 AM
Moonset: 4:12 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:02 AM - 9:32 AM

Minor Periods

6:43 PM - 8:13 PM
3:42 AM - 5:12 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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