Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

59.2°F

Measurement Time: Friday, October 2, 2026, 10:00 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

67°F

Conditions: Smoke

Humidity: 28%

Wind: ENE 9 mph

Dew Point: 33°F

Weather Forecast

Overnight
64°F - Smoke

Saturday
96°F - Smoke then Haze

Saturday Night
63°F - Mostly Clear then Areas Of Smoke

Sunday
96°F - Areas Of Smoke

Sunday Night
63°F - Mostly Clear

Monday
94°F - Sunny

Monday Night
62°F - Mostly Clear

Tuesday
94°F - Sunny

Tuesday Night
62°F - Clear

Wednesday
95°F - Sunny

Wednesday Night
63°F - Clear

Thursday
94°F - Sunny

Thursday Night
62°F - Mostly Clear

Friday
89°F - Sunny

Astronomical

Sunrise: 6:57 AM
Sun Transit: 12:48 AM
Sunset: 6:40 PM
Daylight: 11 hrs 42 mins

Moonrise: 12:04 AM
Moon Transit: 6:58 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:28 AM - 8:58 AM
2:49 PM - 5:19 PM

Minor Periods

2:16 PM - 3:46 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:57 AM
Sun Transit: 12:48 AM
Sunset: 6:40 PM
Daylight: 11 hrs 42 mins

Moonrise: 12:04 AM
Moon Transit: 6:58 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:28 AM - 8:58 AM
2:49 PM - 5:19 PM

Minor Periods

2:16 PM - 3:46 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:57 AM
Sun Transit: 12:48 AM
Sunset: 6:40 PM
Daylight: 11 hrs 42 mins

Moonrise: 12:04 AM
Moon Transit: 6:58 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:28 AM - 8:58 AM
2:49 PM - 5:19 PM

Minor Periods

2:16 PM - 3:46 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:57 AM
Sun Transit: 12:48 AM
Sunset: 6:40 PM
Daylight: 11 hrs 42 mins

Moonrise: 12:04 AM
Moon Transit: 6:58 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:28 AM - 8:58 AM
2:49 PM - 5:19 PM

Minor Periods

2:16 PM - 3:46 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:58 AM
Sun Transit: 12:48 AM
Sunset: 6:38 PM
Daylight: 11 hrs 40 mins

Moonrise: 12:16 AM
Moon Transit: 7:57 AM
Moonset: 3:30 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:27 AM - 9:57 AM
3:47 PM - 6:17 PM

Minor Periods

3:00 PM - 4:30 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:58 AM
Sun Transit: 12:48 AM
Sunset: 6:38 PM
Daylight: 11 hrs 40 mins

Moonrise: 12:16 AM
Moon Transit: 7:57 AM
Moonset: 3:30 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:27 AM - 9:57 AM
3:47 PM - 6:17 PM

Minor Periods

3:00 PM - 4:30 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:59 AM
Sun Transit: 12:48 AM
Sunset: 6:37 PM
Daylight: 11 hrs 38 mins

Moonrise: 1:29 AM
Moon Transit: 8:53 AM
Moonset: 4:06 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:23 AM - 10:53 AM
4:41 PM - 7:11 PM

Minor Periods

3:36 PM - 5:06 PM
12:59 AM - 2:29 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:59 AM
Sun Transit: 12:48 AM
Sunset: 6:37 PM
Daylight: 11 hrs 38 mins

Moonrise: 1:29 AM
Moon Transit: 8:53 AM
Moonset: 4:06 PM
Moon Phase: Last Quarter
Moon Illumination: 22.8%

Best Times for Fishing or Hunting

Major Periods

8:23 AM - 10:53 AM
4:41 PM - 7:11 PM

Minor Periods

3:36 PM - 5:06 PM
12:59 AM - 2:29 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:00 AM
Sun Transit: 12:47 AM
Sunset: 6:35 PM
Daylight: 11 hrs 35 mins

Moonrise: 2:42 AM
Moon Transit: 9:44 AM
Moonset: 4:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

5:31 PM - 8:01 PM
9:14 AM - 11:44 AM

Minor Periods

4:07 PM - 5:37 PM
2:12 AM - 3:42 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:00 AM
Sun Transit: 12:47 AM
Sunset: 6:35 PM
Daylight: 11 hrs 35 mins

Moonrise: 2:42 AM
Moon Transit: 9:44 AM
Moonset: 4:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.1%

Best Times for Fishing or Hunting

Major Periods

5:31 PM - 8:01 PM
9:14 AM - 11:44 AM

Minor Periods

4:07 PM - 5:37 PM
2:12 AM - 3:42 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:01 AM
Sun Transit: 12:47 AM
Sunset: 6:34 PM
Daylight: 11 hrs 33 mins

Moonrise: 3:51 AM
Moon Transit: 10:32 AM
Moonset: 5:03 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

6:18 PM - 8:48 PM
10:02 AM - 12:32 AM

Minor Periods

4:33 PM - 6:03 PM
3:21 AM - 4:51 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:01 AM
Sun Transit: 12:47 AM
Sunset: 6:34 PM
Daylight: 11 hrs 33 mins

Moonrise: 3:51 AM
Moon Transit: 10:32 AM
Moonset: 5:03 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.2%

Best Times for Fishing or Hunting

Major Periods

6:18 PM - 8:48 PM
10:02 AM - 12:32 AM

Minor Periods

4:33 PM - 6:03 PM
3:21 AM - 4:51 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:02 AM
Sun Transit: 12:47 AM
Sunset: 6:32 PM
Daylight: 11 hrs 30 mins

Moonrise: 4:59 AM
Moon Transit: 11:18 AM
Moonset: 5:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

7:03 PM - 9:33 PM
10:48 AM - 1:18 PM

Minor Periods

4:58 PM - 6:28 PM
4:29 AM - 5:59 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:02 AM
Sun Transit: 12:47 AM
Sunset: 6:32 PM
Daylight: 11 hrs 30 mins

Moonrise: 4:59 AM
Moon Transit: 11:18 AM
Moonset: 5:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

7:03 PM - 9:33 PM
10:48 AM - 1:18 PM

Minor Periods

4:58 PM - 6:28 PM
4:29 AM - 5:59 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 7:03 AM
Sun Transit: 12:46 AM
Sunset: 6:31 PM
Daylight: 11 hrs 28 mins

Moonrise: 6:05 AM
Moon Transit: 12:03 AM
Moonset: 5:52 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

7:48 PM - 10:18 PM
11:33 AM - 2:03 PM

Minor Periods

5:22 PM - 6:52 PM
5:35 AM - 7:05 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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