Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

45.0°F

Measurement Time: Tuesday, April 14, 2026, 12:45 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

35.2°F
Fog
Fog
33.5°F
35.2°F
99%
E 2.2 mph
2.2 mph
33.5°F
34.9°F
0 in
100%
1 mi
1019 mbar
0

Five Day Weather Forecast

Cloudy
Tue
H: 42°F
L: 14°F
Partly Cloudy
Wed
H: 45°F
L: 22°F
Cloudy
Thu
H: 36°F
L: 18°F
Sunny
Fri
H: 45°F
L: 17°F
Sunny
Sat
H: 51°F
L: 31°F

Air Quality

AQI: 1 - Good
PM2.5: 3.48 μg/m3
PM10: 5.08 μg/m3
Carbon Monoxide: 136.68 μg/m3
Nitrogen Dioxide: 1.98 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 117 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 12:58 AM
Sunset: 7:34 PM
Daylight: 13 hrs 9 mins
Moonrise: 4:49 AM
Moon Transit: 10:42 AM
Moonset: 4:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:12 AM - 12:42 AM

Minor Periods

4:16 PM - 5:46 PM
4:19 AM - 5:49 AM

Action Rating: 2 out of 5

Tuesday, April 14, 2026

Weather Forecast

Cloudy
41.5°F
13.6°F
29.3°F
90%
0 in
0%
0%
7.8 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 2.48 μg/m3
PM10: 3.08 μg/m3
Carbon Monoxide: 144.84 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 108.96 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 12:58 AM
Sunset: 7:34 PM
Daylight: 13 hrs 9 mins
Moonrise: 4:49 AM
Moon Transit: 10:42 AM
Moonset: 4:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:12 AM - 12:42 AM

Minor Periods

4:16 PM - 5:46 PM
4:19 AM - 5:49 AM

Action Rating: 2 out of 5

Wednesday, April 15, 2026

Weather Forecast

Partly Cloudy
45.3°F
22.1°F
35.8°F
66%
0 in
0%
0%
9.6 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 3.73 μg/m3
PM10: 5.9 μg/m3
Carbon Monoxide: 142.32 μg/m3
Nitrogen Dioxide: 1.59 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 118.6 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 12:58 AM
Sunset: 7:35 PM
Daylight: 13 hrs 11 mins
Moonrise: 5:14 AM
Moon Transit: 8:33 AM
Moonset: 5:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:03 AM - 10:33 AM

Minor Periods

5:26 PM - 6:56 PM
4:44 AM - 6:14 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Cloudy
35.6°F
18.3°F
28.4°F
64%
0 in
0%
0%
13 mph
1.8


Air Quality

AQI: 1 - Good
PM2.5: 3.9 μg/m3
PM10: 6.22 μg/m3
Carbon Monoxide: 133 μg/m3
Nitrogen Dioxide: 1.41 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 122 μg/m3

Astronomical

Sunrise: 6:22 AM
Sun Transit: 12:58 AM
Sunset: 7:35 PM
Daylight: 13 hrs 14 mins
Moonrise: 5:40 AM
Moon Transit: 12:17 AM
Moonset: 7:08 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

8:07 PM - 10:37 PM
11:47 AM - 2:17 PM

Minor Periods

6:38 PM - 8:08 PM
5:10 AM - 6:40 AM

Action Rating: 4 out of 5

Friday, April 17, 2026

Weather Forecast

Sunny
44.8°F
16.9°F
30.3°F
40%
0 in
0%
0%
11.2 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 2.6 μg/m3
PM10: 4.44 μg/m3
Carbon Monoxide: 131.88 μg/m3
Nitrogen Dioxide: 1.17 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 136.68 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 12:58 AM
Sunset: 7:36 PM
Daylight: 13 hrs 16 mins
Moonrise: 6:09 AM
Moon Transit: 1:10 PM
Moonset: 8:25 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

9:01 PM - 11:31 PM
12:40 AM - 3:10 PM

Minor Periods

7:55 PM - 9:25 PM
5:39 AM - 7:09 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Sunny
51.2°F
30.7°F
39.9°F
51%
0 in
0%
0%
9.6 mph
2.1


Air Quality

AQI: 1 - Good
PM2.5: 3.08 μg/m3
PM10: 7.28 μg/m3
Carbon Monoxide: 134.81 μg/m3
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 131.69 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 12:57 AM
Sunset: 7:37 PM
Daylight: 13 hrs 18 mins
Moonrise: 6:44 AM
Moon Transit: 2:07 PM
Moonset: 9:43 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
1:37 PM - 4:07 PM

Minor Periods

9:13 PM - 10:43 PM
6:14 AM - 7:44 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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