Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

60.1°F

Measurement Time: Saturday, August 30, 2025, 3:30 AM PDT

Temperature Locations

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Local Points of Interest

Hetch Hetchy Reservoir; Yosemite National Park; White Wolf, CA

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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 / 1,171 meters

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 (37.0 mi)
Deadman Creek, Mammoth Lakes, CA (41.0 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

88.2°F
Sunny
Conditions: Sunny
Humidity: 19%
Feels Like: 88.3°F
Wind: SW 2.5 mph
Wind Gusts: 2.8 mph
Pressure: 30.07 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 3

Five Day Weather Forecast

Partly Cloudy
Sat
H: 70°F
L: 55°F
Sunny
Sun
H: 71°F
L: 56°F
Sunny
Mon
H: 73°F
L: 59°F
Patchy rain nearby
Tue
H: 74°F
L: 56°F
Sunny
Wed
H: 76°F
L: 55°F

Air Quality

AQI: 2 - Moderate
PM2.5: 18.46 μg/m3
PM10: 20.14 μg/m3
Carbon Monoxide: 211.46 μg/m3
Nitrogen Dioxide: 0.67 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 146 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:00 PM
Sunset: 7:30 PM
Daylight: 13 hrs 3 mins
Moonrise: 1:52 PM
Moon Transit: 6:31 PM
Moonset: 11:08 PM
Moon Phase: First Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

1:32 AM - 4:02 AM
6:01 PM - 8:31 PM

Minor Periods

12:00 AM - 12:00 AM
1:22 PM - 2:52 PM

Action Rating: 2 out of 5

Saturday, August 30, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 62.3°F
Average Humidity: 41%
Chance of Rain: 0%
Wind: 11.2 mph
UV Index: 1.5

Air Quality

AQI: 1 - Good
PM2.5: 14.49 μg/m3
PM10: 15.88 μg/m3
Carbon Monoxide: 206.09 μg/m3
Nitrogen Dioxide: 3.12 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 110.52 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:00 PM
Sunset: 7:30 PM
Daylight: 13 hrs 3 mins
Moonrise: 1:52 PM
Moon Transit: 6:31 PM
Moonset: 11:08 PM
Moon Phase: First Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

1:32 AM - 4:02 AM
6:01 PM - 8:31 PM

Minor Periods

12:00 AM - 12:00 AM
1:22 PM - 2:52 PM

Action Rating: 2 out of 5

Sunday, August 31, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 64°F
Average Humidity: 37%
Chance of Rain: 0%
Wind: 12.1 mph
UV Index: 1.5

Air Quality

AQI: 2 - Moderate
PM2.5: 18.63 μg/m3
PM10: 20.11 μg/m3
Carbon Monoxide: 213.81 μg/m3
Nitrogen Dioxide: 3.67 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 109.32 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 12:58 AM
Sunset: 7:29 PM
Daylight: 13 hrs mins
Moonrise: 2:52 PM
Moon Transit: 7:22 PM
Moonset: 12:08 AM
Moon Phase: First Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

2:21 AM - 4:51 AM
6:52 PM - 9:22 PM

Minor Periods

2:22 PM - 3:52 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, September 1, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 65°F
Average Humidity: 31%
Chance of Rain: 0%
Wind: 12.1 mph
UV Index: 1.6

Air Quality

AQI: 2 - Moderate
PM2.5: 19.64 μg/m3
PM10: 21.18 μg/m3
Carbon Monoxide: 238.98 μg/m3
Nitrogen Dioxide: 3.44 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 110.96 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 12:58 AM
Sunset: 7:27 PM
Daylight: 12 hrs 58 mins
Moonrise: 3:48 PM
Moon Transit: 8:16 PM
Moonset: 12:52 AM
Moon Phase: First Quarter
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

3:13 AM - 5:43 AM
7:46 PM - 10:16 PM

Minor Periods

3:18 PM - 4:48 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Tuesday, September 2, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 65.6°F
Average Humidity: 35%
Chance of Rain: 63%
Wind: 13.4 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 10.49 μg/m3
PM10: 11.45 μg/m3
Carbon Monoxide: 231.93 μg/m3
Nitrogen Dioxide: 3.81 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 98.08 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 12:58 AM
Sunset: 7:26 PM
Daylight: 12 hrs 56 mins
Moonrise: 4:39 PM
Moon Transit: 9:10 PM
Moonset: 12:45 AM
Moon Phase: First Quarter
Moon Illumination: 74.7%

Best Times for Fishing or Hunting

Major Periods

4:06 AM - 6:36 AM
8:40 PM - 11:10 PM

Minor Periods

4:09 PM - 5:39 PM
12:15 AM - 1:45 AM

Action Rating: 3 out of 5

Wednesday, September 3, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 64.2°F
Average Humidity: 40%
Chance of Rain: 0%
Wind: 15 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 31.98 μg/m3
PM10: 34.47 μg/m3
Carbon Monoxide: 361.72 μg/m3
Nitrogen Dioxide: 3.61 μg/m3
Sulphur Dioxide: 2.84 μg/m3
Ozone: 125.92 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 12:57 AM
Sunset: 7:24 PM
Daylight: 12 hrs 53 mins
Moonrise: 5:22 PM
Moon Transit: 10:04 PM
Moonset: 1:45 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.9%

Best Times for Fishing or Hunting

Major Periods

5:01 AM - 7:31 AM
12:00 AM - 12:00 AM

Minor Periods

4:52 PM - 6:22 PM
1:15 AM - 2:45 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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