Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

66.0°F

Measurement Time: Thursday, August 27, 2026, 9:30 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

68°F
Chance Light Rain
Chance Light Rain
53%
0 mph
50°F

Weather Forecast

Light Rain Likely
Overnight
65°F - Light Rain Likely
Showers And Thunderstorms
Friday
77°F - Showers And Thunderstorms
Showers And Thunderstorms Likely then Light Rain Likely
Friday Night
61°F - Showers And Thunderstorms Likely then Light Rain Likely
Chance Showers And Thunderstorms
Saturday
79°F - Chance Showers And Thunderstorms
Mostly Clear
Saturday Night
58°F - Mostly Clear
Sunny
Sunday
81°F - Sunny
Clear
Sunday Night
58°F - Clear
Sunny
Monday
80°F - Sunny
Mostly Clear
Monday Night
56°F - Mostly Clear
Sunny
Tuesday
76°F - Sunny
Mostly Clear
Tuesday Night
53°F - Mostly Clear
Sunny
Wednesday
76°F - Sunny
Partly Cloudy
Wednesday Night
55°F - Partly Cloudy
Slight Chance Light Rain
Thursday
79°F - Slight Chance Light Rain

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:00 PM
Sunset: 7:33 PM
Daylight: 13 hrs 8 mins
Moonrise: 7:51 PM
Moon Transit: 1:05 AM
Moonset: 6:54 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
8:53 AM - 11:23 AM

Minor Periods

7:21 PM - 8:51 PM
6:24 AM - 7:54 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:00 PM
Sunset: 7:33 PM
Daylight: 13 hrs 8 mins
Moonrise: 7:51 PM
Moon Transit: 1:05 AM
Moonset: 6:54 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
8:53 AM - 11:23 AM

Minor Periods

7:21 PM - 8:51 PM
6:24 AM - 7:54 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:00 PM
Sunset: 7:33 PM
Daylight: 13 hrs 8 mins
Moonrise: 7:51 PM
Moon Transit: 1:05 AM
Moonset: 6:54 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
8:53 AM - 11:23 AM

Minor Periods

7:21 PM - 8:51 PM
6:24 AM - 7:54 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:00 PM
Sunset: 7:33 PM
Daylight: 13 hrs 8 mins
Moonrise: 7:51 PM
Moon Transit: 1:05 AM
Moonset: 6:54 AM
Moon Phase: Full
Moon Illumination: 98.7%

Best Times for Fishing or Hunting

Major Periods

12:35 AM - 3:05 AM
8:53 AM - 11:23 AM

Minor Periods

7:21 PM - 8:51 PM
6:24 AM - 7:54 AM

Action Rating: 5 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:00 PM
Sunset: 7:32 PM
Daylight: 13 hrs 5 mins
Moonrise: 8:15 PM
Moon Transit: 1:49 AM
Moonset: 7:58 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:19 AM - 3:49 AM
9:19 PM - 11:49 PM

Minor Periods

7:45 PM - 9:15 PM
7:28 AM - 8:58 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:26 AM
Sun Transit: 1:00 PM
Sunset: 7:32 PM
Daylight: 13 hrs 5 mins
Moonrise: 8:15 PM
Moon Transit: 1:49 AM
Moonset: 7:58 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:19 AM - 3:49 AM
9:19 PM - 11:49 PM

Minor Periods

7:45 PM - 9:15 PM
7:28 AM - 8:58 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:00 PM
Sunset: 7:30 PM
Daylight: 13 hrs 3 mins
Moonrise: 8:40 PM
Moon Transit: 12:00 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:10 PM - 9:40 PM
8:33 AM - 10:03 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:00 PM
Sunset: 7:30 PM
Daylight: 13 hrs 3 mins
Moonrise: 8:40 PM
Moon Transit: 12:00 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

8:10 PM - 9:40 PM
8:33 AM - 10:03 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 12:58 AM
Sunset: 7:29 PM
Daylight: 13 hrs 1 mins
Moonrise: 9:07 PM
Moon Transit: 3:19 AM
Moonset: 10:11 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:49 AM - 5:19 AM
11:07 AM - 1:37 PM

Minor Periods

8:37 PM - 10:07 PM
9:41 AM - 11:11 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 12:58 AM
Sunset: 7:29 PM
Daylight: 13 hrs 1 mins
Moonrise: 9:07 PM
Moon Transit: 3:19 AM
Moonset: 10:11 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:49 AM - 5:19 AM
11:07 AM - 1:37 PM

Minor Periods

8:37 PM - 10:07 PM
9:41 AM - 11:11 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 12:58 AM
Sunset: 7:27 PM
Daylight: 12 hrs 58 mins
Moonrise: 9:38 PM
Moon Transit: 4:07 AM
Moonset: 11:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:37 AM - 6:07 AM
11:57 AM - 2:27 PM

Minor Periods

9:08 PM - 10:38 PM
10:51 AM - 12:21 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 12:58 AM
Sunset: 7:27 PM
Daylight: 12 hrs 58 mins
Moonrise: 9:38 PM
Moon Transit: 4:07 AM
Moonset: 11:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:37 AM - 6:07 AM
11:57 AM - 2:27 PM

Minor Periods

9:08 PM - 10:38 PM
10:51 AM - 12:21 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 12:58 AM
Sunset: 7:26 PM
Daylight: 12 hrs 56 mins
Moonrise: 10:17 PM
Moon Transit: 5:00 AM
Moonset: 12:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:30 AM - 7:00 AM
12:51 AM - 3:21 PM

Minor Periods

9:47 PM - 11:17 PM
12:03 AM - 1:33 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 12:58 AM
Sunset: 7:26 PM
Daylight: 12 hrs 56 mins
Moonrise: 10:17 PM
Moon Transit: 5:00 AM
Moonset: 12:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:30 AM - 7:00 AM
12:51 AM - 3:21 PM

Minor Periods

9:47 PM - 11:17 PM
12:03 AM - 1:33 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 12:57 AM
Sunset: 7:24 PM
Daylight: 12 hrs 54 mins
Moonrise: 11:05 PM
Moon Transit: 5:57 AM
Moonset: 1:46 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:27 AM - 7:57 AM
1:49 PM - 4:19 PM

Minor Periods

12:00 AM - 12:00 AM
1:16 PM - 2:46 PM

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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