Water Temperature of the Tuolumne River in Groveland, CA

Current Water Temperature

42.4°F 5.8°C
Frigid Dangerously Cold
42.4°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Severe hypothermia and cold water shock risk. Unprotected swimming causes rapid loss of dexterity in under 5 minutes.

Measurement Time: Thursday, November 12, 2026, 10:45 AM PST

Temperature Locations

View Nearby Locations     View All California Locations     View Locations Near Me

Local Points of Interest

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

Sponsored Content

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

55.9°F
Clear
Conditions: Clear
Humidity: 23%
Feels Like: 48.4°F
Wind: NNW 4.9 mph
Wind Gusts: 8.9 mph
Pressure: 29.83 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 8 mi
UV Index: 0

Five-Day Weather Forecast

Overcast
Thu
H: 73°F
L: 48°F
Heavy Rain
Fri
H: 53°F
L: 38°F
Light Drizzle
Sat
H: 50°F
L: 37°F
Fog
Sun
H: 53°F
L: 36°F
Moderate Rain
Mon
H: 51°F
L: 36°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
4.6 μg/m³
Good
PM10
5.3 μg/m³
Good
Ozone (O3)
97 μg/m³
Photochemical
NO2
2.1 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
118 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 13m daylight
Sunrise 6:36 AM
Solar Noon 11:42 AM
Sunset 4:49 PM
Moon
Waxing Crescent • 6%
Moonrise 10:03 AM
Transit 2:35 PM
Moonset 7:08 PM

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
2:05 PM - 4:35 PM

Minor Periods

9:33 AM - 11:03 AM
6:38 PM - 8:08 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 59°F
Average Humidity: 19%
Chance of Rain: 1%
Wind: 9.6 mph
UV Index: 4.2

Air Quality

EPA Index 1 • Good
PM2.5
4 μg/m³
Good
PM10
5.1 μg/m³
Good
Ozone (O3)
97.8 μg/m³
Photochemical
NO2
1.2 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
114.5 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 13m daylight
Sunrise 6:36 AM
Solar Noon 11:42 AM
Sunset 4:49 PM
Moon
Waxing Crescent • 6%
Moonrise 10:03 AM
Transit 2:35 PM
Moonset 7:08 PM

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
2:05 PM - 4:35 PM

Minor Periods

9:33 AM - 11:03 AM
6:38 PM - 8:08 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Heavy Rain
Average Temperature: 46.8°F
Average Humidity: 75%
Chance of Rain: 100%
Wind: 13.8 mph
UV Index: 3.6

Air Quality

EPA Index 1 • Good
PM2.5
3.8 μg/m³
Good
PM10
4.9 μg/m³
Good
Ozone (O3)
95.6 μg/m³
Photochemical
NO2
1.2 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
118.5 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 11m daylight
Sunrise 6:38 AM
Solar Noon 11:42 AM
Sunset 4:49 PM
Moon
Waxing Crescent • 13%
Moonrise 10:49 AM
Transit 3:25 PM
Moonset 8:06 PM

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
2:55 PM - 5:25 PM

Minor Periods

10:19 AM - 11:49 AM
7:36 PM - 9:06 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Light Drizzle
Average Temperature: 41.7°F
Average Humidity: 76%
Chance of Rain: 25%
Wind: 8.9 mph
UV Index: 4.1

Air Quality

EPA Index 1 • Good
PM2.5
2.6 μg/m³
Good
PM10
3.7 μg/m³
Good
Ozone (O3)
96.2 μg/m³
Photochemical
NO2
0.9 μg/m³
Nitrogen Dioxide
SO2
0.1 μg/m³
Sulfur Dioxide
CO
108.8 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 9m daylight
Sunrise 6:39 AM
Solar Noon 11:43 AM
Sunset 4:48 PM
Moon
Waxing Crescent • 21%
Moonrise 11:27 AM
Transit 4:14 PM
Moonset 9:06 PM

Best Times for Fishing or Hunting

Major Periods

3:20 AM - 5:50 AM
3:44 PM - 6:14 PM

Minor Periods

10:57 AM - 12:27 PM
8:36 PM - 10:06 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Fog
Average Temperature: 42.8°F
Average Humidity: 82%
Chance of Rain: 59%
Wind: 9.4 mph
UV Index: 4

Air Quality

EPA Index 1 • Good
PM2.5
4.6 μg/m³
Good
PM10
6 μg/m³
Good
Ozone (O3)
96.3 μg/m³
Photochemical
NO2
1.2 μg/m³
Nitrogen Dioxide
SO2
0.2 μg/m³
Sulfur Dioxide
CO
111.7 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 7m daylight
Sunrise 6:40 AM
Solar Noon 11:43 AM
Sunset 4:47 PM
Moon
Waxing Crescent • 31%
Moonrise 12:00 PM
Transit 5:00 PM
Moonset 10:07 PM

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
4:30 PM - 7:00 PM

Minor Periods

11:30 AM - 1:00 PM
9:37 PM - 11:07 PM
Action Rating:
Very Good 4/5
Monday, November 16, 2026

Weather Forecast

Conditions: Moderate Rain
Average Temperature: 41.9°F
Average Humidity: 88%
Chance of Rain: 79%
Wind: 9.6 mph
UV Index: 2.8

Air Quality

EPA Index 1 • Good
PM2.5
1 μg/m³
Good
PM10
1.5 μg/m³
Good
Ozone (O3)
89.2 μg/m³
Photochemical
NO2
1.1 μg/m³
Nitrogen Dioxide
SO2
0.1 μg/m³
Sulfur Dioxide
CO
121.4 μg/m³
Carbon Monoxide

Astronomical

Sun
10h 6m daylight
Sunrise 6:41 AM
Solar Noon 11:43 AM
Sunset 4:46 PM
Moon
First Quarter • 42%
Moonrise 12:29 PM
Transit 5:44 PM
Moonset 11:08 PM

Best Times for Fishing or Hunting

Major Periods

4:52 AM - 7:22 AM
5:14 PM - 7:44 PM

Minor Periods

11:59 AM - 1:29 PM
10:38 PM - 12:08 AM
Action Rating:
Good Action 3/5
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.

Webcams Near Groveland, CA

Sponsored Content