Water Temperature of the Merced River in Yosemite Valley, CA

Current Water Temperature

54.7°F

Measurement Time: Wednesday, June 4, 2025, 11:30 AM PDT

Temperature Locations

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Local Points of Interest

Happy Isles Bridge; Yosemite National Park

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Merced River

Station Name: MERCED R A HAPPY ISLES BRIDGE NR YOSEMITE CA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 4,094 feet / 1,248 meters

Nearest Address:
Happy Isle Loop Rd
Yosemite Valley, CA 95389
Mariposa County

GPS Coordinates: 37.73131496, -119.5590514

Nearby Water Temperatures

Tuolumne River, Groveland, CA (13.9 mi)
Tuolumne River, Groveland, CA (19.3 mi)
Tuolumne River, Groveland, CA (23.5 mi)
Tuolumne River, Groveland, CA (24.7 mi)
Cherry Creek, Groveland, CA (25.5 mi)
Middle Fork San Joaquin River, Mammoth Lakes, CA (26.7 mi)
Deadman Creek, Mammoth Lakes, CA (33.9 mi)
Hot Creek, Mammoth Lakes, CA (38.6 mi)
Hot Creek, Mammoth Lakes, CA (39.2 mi)
Hot Creek, Mammoth Lakes, CA (40.8 mi)
San Joaquin River, Friant, CA (52.4 mi)
Walker Lake, Walker Lake, NV (80.9 mi)
Walker Lake, Walker Lake, NV (83.8 mi)
Trout Creek, South Lake Tahoe, CA (85.1 mi)
Upper Truckee River, South Lake Tahoe, CA (85.6 mi)

Weather for Yosemite Valley, California

Current Weather

60.2°F
Thundery outbreaks in nearby
Conditions: Thundery outbreaks in nearby
Humidity: 63%
Feels Like: 60.4°F
Wind: NNW 2.2 mph
Wind Gusts: 3.1 mph
Pressure: 29.84 in
Precipitation: 0 in
Cloud Cover: 45%
Visibility: 6 mi
UV Index: 0.3

Five Day Weather Forecast

Sunny
Wed
H: 64°F
L: 52°F
Thundery outbreaks in nearby
Thu
H: 62°F
L: 53°F
Sunny
Fri
H: 64°F
L: 50°F
Sunny
Sat
H: 68°F
L: 56°F
Moderate rain
Sun
H: 72°F
L: 53°F

Air Quality

AQI: 1 - Good
PM2.5: 13.88 μg/m3
PM10: 16.65 μg/m3
Carbon Monoxide: 264.55 μg/m3
Nitrogen Dioxide: 9.62 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:56 AM
Sunset: 8:17 PM
Daylight: 14 hrs 40 mins
Moonrise: 2:25 PM
Moon Transit: 8:26 PM
Moonset: 1:58 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

3:33 AM - 6:03 AM
7:56 PM - 10:26 PM

Minor Periods

1:55 PM - 3:25 PM
1:28 AM - 2:58 AM

Action Rating: 4 out of 5

Special Weather Statement issued June 4 at 5:17PM PDT by NWS Sacramento CA

Effective: Wed June 4, 2025, 5:17 PM
Expires: Wed June 4, 2025, 6:00 PM

At 516 PM PDT, Doppler radar was tracking a cluster of strong thunderstorms near Ebbetts Pass, or 10 miles northeast of Lake Alpine. These storms were nearly stationary. HAZARD...Wind gusts up to 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Ebbetts Pass, Lookout Peak, and Hermit Valley Basin.

If outdoors, consider seeking shelter inside a building. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle.


Special Weather Statement issued June 4 at 5:19PM PDT by NWS Hanford CA

Effective: Wed June 4, 2025, 5:19 PM
Expires: Wed June 4, 2025, 6:00 PM

At 519 PM PDT, Doppler radar was tracking a strong thunderstorm 21 miles west of North Lake Campground, or 23 miles west of Aspendell, moving southeast at 15 mph. HAZARD...Wind gusts up to 40 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Kaiser Point, Upper Burnt Corral, High Sierra, and Florence Lake.

If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle.


Special Weather Statement issued June 4 at 5:17PM PDT by NWS Sacramento CA

Effective: Wed June 4, 2025, 5:17 PM
Expires: Wed June 4, 2025, 6:00 PM

At 516 PM PDT, Doppler radar was tracking a cluster of strong thunderstorms near Ebbetts Pass, or 10 miles northeast of Lake Alpine. These storms were nearly stationary. HAZARD...Wind gusts up to 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Ebbetts Pass, Lookout Peak, and Hermit Valley Basin.

If outdoors, consider seeking shelter inside a building. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle.


Wednesday, June 4, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 58.5°F
Average Humidity: 55%
Chance of Rain: 0%
Wind: 10.7 mph
UV Index: 2.6

Air Quality

AQI: 1 - Good
PM2.5: 11.61 μg/m3
PM10: 15.38 μg/m3
Carbon Monoxide: 253.08 μg/m3
Nitrogen Dioxide: 4.88 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 107.8 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:56 AM
Sunset: 8:17 PM
Daylight: 14 hrs 40 mins
Moonrise: 2:25 PM
Moon Transit: 8:26 PM
Moonset: 1:58 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%

Best Times for Fishing or Hunting

Major Periods

3:33 AM - 6:03 AM
7:56 PM - 10:26 PM

Minor Periods

1:55 PM - 3:25 PM
1:28 AM - 2:58 AM

Action Rating: 4 out of 5

Thursday, June 5, 2025

Weather Forecast

Conditions: Thundery outbreaks in nearby
Average Temperature: 57.6°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 2.1

Air Quality

AQI: 1 - Good
PM2.5: 13.47 μg/m3
PM10: 19.18 μg/m3
Carbon Monoxide: 261.22 μg/m3
Nitrogen Dioxide: 4.33 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 116.52 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:56 AM
Sunset: 8:17 PM
Daylight: 14 hrs 41 mins
Moonrise: 3:22 PM
Moon Transit: 9:05 PM
Moonset: 2:19 AM
Moon Phase: First Quarter
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
8:35 PM - 11:05 PM

Minor Periods

2:52 PM - 4:22 PM
1:49 AM - 3:19 AM

Action Rating: 3 out of 5

Friday, June 6, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 58.7°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 8.9 mph
UV Index: 2.2

Air Quality

AQI: 2 - Moderate
PM2.5: 16.14 μg/m3
PM10: 24.06 μg/m3
Carbon Monoxide: 257.08 μg/m3
Nitrogen Dioxide: 4.43 μg/m3
Sulphur Dioxide: 2.12 μg/m3
Ozone: 122.24 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:57 AM
Sunset: 8:18 PM
Daylight: 14 hrs 42 mins
Moonrise: 4:21 PM
Moon Transit: 9:46 PM
Moonset: 2:41 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

4:52 AM - 7:22 AM
9:16 PM - 11:46 PM

Minor Periods

3:51 PM - 5:21 PM
2:11 AM - 3:41 AM

Action Rating: 2 out of 5

Saturday, June 7, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 61.3°F
Average Humidity: 55%
Chance of Rain: 0%
Wind: 8.9 mph
UV Index: 2.3

Air Quality

AQI: 1 - Good
PM2.5: 11.39 μg/m3
PM10: 16.36 μg/m3
Carbon Monoxide: 246.27 μg/m3
Nitrogen Dioxide: 5.42 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 107.8 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:57 AM
Sunset: 8:19 PM
Daylight: 14 hrs 42 mins
Moonrise: 5:21 PM
Moon Transit: 10:29 PM
Moonset: 3:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

5:34 AM - 8:04 AM
12:00 AM - 12:00 AM

Minor Periods

4:51 PM - 6:21 PM
2:34 AM - 4:04 AM

Action Rating: 3 out of 5

Sunday, June 8, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 61.4°F
Average Humidity: 49%
Chance of Rain: 88%
Wind: 11.9 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 13.14 μg/m3
PM10: 18.09 μg/m3
Carbon Monoxide: 313.5 μg/m3
Nitrogen Dioxide: 8.4 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 90.69 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:57 AM
Sunset: 8:19 PM
Daylight: 14 hrs 43 mins
Moonrise: 6:23 PM
Moon Transit: 11:15 PM
Moonset: 3:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

6:18 AM - 8:48 AM
12:00 AM - 12:00 AM

Minor Periods

5:53 PM - 7:23 PM
3:01 AM - 4:31 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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