Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

55.0°F

Measurement Time: Monday, March 23, 2026, 12:45 PM PDT

Temperature Locations

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Local Points of Interest

Stanislaus National Forest; Mather, CA; Harden Flat, CA

Tuolumne River

Station Name: TUOLUMNE R AB EARLY INTAKE NR MATHER CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 2,493 feet

Nearest Address:
Preston Falls Trail
Groveland, CA 95321
Tuolumne County

GPS Coordinates: 37.87936848, -119.947126

Nearby Water Temperatures

Tuolumne River, Groveland, CA (1.3 mi)
Cherry Creek, Groveland, CA (6.3 mi)
Tuolumne River, Groveland, CA (9.1 mi)
Tuolumne River, Groveland, CA (15.9 mi)
Merced River, Yosemite Valley, CA (23.5 mi)
Middle Fork San Joaquin River, Mammoth Lakes, CA (50 mi)
Deadman Creek, Mammoth Lakes, CA (55.7 mi)
Hot Creek, Mammoth Lakes, CA (61.6 mi)
Hot Creek, Mammoth Lakes, CA (62.1 mi)
San Joaquin River, Friant, CA (63 mi)
Hot Creek, Mammoth Lakes, CA (63.4 mi)
Trout Creek, South Lake Tahoe, CA (71.9 mi)
Upper Truckee River, South Lake Tahoe, CA (72.1 mi)
General Creek, Tahoma, CA (81.5 mi)
South Fork American River, Rescue, CA (83.9 mi)

Weather for Groveland, California

Current Weather

69.7°F
Clear
Clear
69.7°F
69.5°F
31%
NE 5.6 mph
11.7 mph
69.7°F
36.4°F
0 in
0%
6 mi
1016 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 87°F
L: 60°F
Sunny
Tue
H: 79°F
L: 53°F
Sunny
Wed
H: 76°F
L: 52°F
Partly Cloudy
Thu
H: 72°F
L: 48°F
Overcast
Fri
H: 77°F
L: 49°F

Air Quality

AQI: 1 - Good
PM2.5: 2.45 μg/m3
PM10: 5.35 μg/m3
Carbon Monoxide: 108.85 μg/m3
Nitrogen Dioxide: 6.95 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 33 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 1:06 PM
Sunset: 7:15 PM
Daylight: 12 hrs 16 mins
Moonrise: 9:33 AM
Moon Transit: 5:22 PM
Moonset: 12:04 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

12:11 AM - 2:41 AM
4:52 PM - 7:22 PM

Minor Periods

9:03 AM - 10:33 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, March 23, 2026

Weather Forecast

Sunny
86.7°F
59.7°F
70.3°F
35%
0 in
0%
0%
9.4 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 5.03 μg/m3
PM10: 10.31 μg/m3
Carbon Monoxide: 143.61 μg/m3
Nitrogen Dioxide: 5.07 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 72.08 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 1:06 PM
Sunset: 7:15 PM
Daylight: 12 hrs 16 mins
Moonrise: 9:33 AM
Moon Transit: 5:22 PM
Moonset: 12:04 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

12:11 AM - 2:41 AM
4:52 PM - 7:22 PM

Minor Periods

9:03 AM - 10:33 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, March 24, 2026

Weather Forecast

Sunny
79.2°F
53.1°F
68.5°F
40%
0 in
0%
0%
8.3 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 3.72 μg/m3
PM10: 10.5 μg/m3
Carbon Monoxide: 129.45 μg/m3
Nitrogen Dioxide: 4.85 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 60.96 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 1:05 PM
Sunset: 7:15 PM
Daylight: 12 hrs 18 mins
Moonrise: 10:28 AM
Moon Transit: 6:25 PM
Moonset: 1:17 AM
Moon Phase: Waxing Crescent
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

1:13 AM - 3:43 AM
5:55 PM - 8:25 PM

Minor Periods

9:58 AM - 11:28 AM
12:47 AM - 2:17 AM

Action Rating: 2 out of 5

Wednesday, March 25, 2026

Weather Forecast

Sunny
75.6°F
52°F
62.9°F
39%
0 in
0%
0%
8.3 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 4.71 μg/m3
PM10: 11.83 μg/m3
Carbon Monoxide: 130.33 μg/m3
Nitrogen Dioxide: 5.25 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 63.84 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:05 PM
Sunset: 7:16 PM
Daylight: 12 hrs 21 mins
Moonrise: 11:30 AM
Moon Transit: 7:27 PM
Moonset: 2:24 AM
Moon Phase: First Quarter
Moon Illumination: 45.1%

Best Times for Fishing or Hunting

Major Periods

2:16 AM - 4:46 AM
6:57 PM - 9:27 PM

Minor Periods

11:00 AM - 12:30 AM
1:54 AM - 3:24 AM

Action Rating: 3 out of 5

Thursday, March 26, 2026

Weather Forecast

Partly Cloudy
72.1°F
48.4°F
59.9°F
37%
0 in
0%
0%
7.4 mph
1.8


Air Quality

AQI: 1 - Good
PM2.5: 4.85 μg/m3
PM10: 11.07 μg/m3
Carbon Monoxide: 127.7 μg/m3
Nitrogen Dioxide: 5.39 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 68.36 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:05 PM
Sunset: 7:17 PM
Daylight: 12 hrs 23 mins
Moonrise: 12:41 AM
Moon Transit: 8:26 PM
Moonset: 3:19 AM
Moon Phase: First Quarter
Moon Illumination: 56.4%

Best Times for Fishing or Hunting

Major Periods

3:18 AM - 5:48 AM
7:56 PM - 10:26 PM

Minor Periods

12:11 AM - 1:41 PM
2:49 AM - 4:19 AM

Action Rating: 2 out of 5

Friday, March 27, 2026

Weather Forecast

Overcast
77.3°F
49.1°F
60.8°F
38%
0 in
0%
0%
7.8 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 6.92 μg/m3
PM10: 14.12 μg/m3
Carbon Monoxide: 189 μg/m3
Nitrogen Dioxide: 7.44 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 64.92 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:05 PM
Sunset: 7:18 PM
Daylight: 12 hrs 26 mins
Moonrise: 1:53 PM
Moon Transit: 9:22 PM
Moonset: 4:04 AM
Moon Phase: First Quarter
Moon Illumination: 67.4%

Best Times for Fishing or Hunting

Major Periods

4:16 AM - 6:46 AM
8:52 PM - 11:22 PM

Minor Periods

1:23 PM - 2:53 PM
3:34 AM - 5:04 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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