Water Temperature of the Merced River in Yosemite Valley, CA

Current Water Temperature

61.3°F

Measurement Time: Thursday, June 25, 2026, 3:30 PM PDT

Temperature Locations

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Local Points of Interest

Happy Isles Bridge; Yosemite National Park

Merced River

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

Elevation Above Sea Level: 4,095 feet

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

54°F

Conditions: Clear

Feels Like: 47.7°F

Heat Index: 54°F

Humidity: 51%

Wind: E 5.4 mph

Wind Gusts: 11.3 mph

Wind Chill: 52.8°F

Dew Point: 36.1°F

Precipitation: 0 in

Cloud Cover: 0%

Visibility: 6 mi

Air Pressure: 1015 mbar

UV Index: 0

Five Day Weather Forecast

Thu
H: 74°F
L: 52°F

Fri
H: 63°F
L: 49°F

Sat
H: 57°F
L: 40°F

Sun
H: 56°F
L: 36°F

Mon
H: 65°F
L: 43°F

Air Quality

AQI: 1 - Good

PM2.5: 6.5 μg/m3

PM10: 7.9 μg/m3

Carbon Monoxide: 99 μg/m3
Nitrogen Dioxide: 4.5 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 92 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:01 PM
Sunset: 8:24 PM
Daylight: 14 hrs 47 mins

Moonrise: 5:06 PM
Moon Transit: 9:58 PM
Moonset: 2:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

5:00 AM - 7:30 AM
9:28 PM - 11:58 PM

Minor Periods

4:36 PM - 6:06 PM
1:44 AM - 3:14 AM

Action Rating: 2 out of 5

Wind Advisory issued June 25 at 10:30AM PDT until June 27 at 5:00AM PDT by NWS Hanford CA

Effective: Thu June 25, 2026, 10:30 AM
Expires: Thu June 25, 2026, 7:00 PM

* WHAT...West winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Kings Canyon NP, Sequoia NP, South End of the Upper Sierra, Upper San Joaquin River, and Yosemite NP outside of the valley. * WHEN...From 11 AM Friday to 5 AM PDT Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

Wind Advisory issued June 25 at 2:19PM PDT until June 27 at 5:00AM PDT by NWS Hanford CA

Effective: Thu June 25, 2026, 2:19 PM
Expires: Thu June 25, 2026, 10:30 PM

* WHAT...West winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...Kings Canyon NP, Sequoia NP, South End of the Upper Sierra, Upper San Joaquin River, and Yosemite NP outside of the valley. * WHEN...From 11 AM Friday to 5 AM PDT Saturday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.

Thursday, June 25, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 73.7°F

Low Temperature: 52.3°F

Average Temperature: 62.1°F

Average Humidity: 34%

Precipitation: 0 in

Chance of Rain: 1%

Chance of Snow: 0%

Maximum Wind: 11 mph

UV Index: 10.9

Air Quality

AQI: 1 - Good

PM2.5: 5.33 μg/m3

PM10: 7.47 μg/m3

Carbon Monoxide: 100.21 μg/m3
Nitrogen Dioxide: 2.49 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 103.83 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:01 PM
Sunset: 8:24 PM
Daylight: 14 hrs 47 mins

Moonrise: 5:06 PM
Moon Transit: 9:58 PM
Moonset: 2:14 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

5:00 AM - 7:30 AM
9:28 PM - 11:58 PM

Minor Periods

4:36 PM - 6:06 PM
1:44 AM - 3:14 AM

Action Rating: 2 out of 5

Friday, June 26, 2026

Weather Forecast

Conditions: Patchy rain nearby

High Temperature: 62.5°F

Low Temperature: 48.7°F

Average Temperature: 54.8°F

Average Humidity: 52%

Precipitation: 0.02 in

Chance of Rain: 36%

Chance of Snow: 0%

Maximum Wind: 12.1 mph

UV Index: 6.4

Air Quality

AQI: 1 - Good

PM2.5: 5.52 μg/m3

PM10: 7.33 μg/m3

Carbon Monoxide: 97.83 μg/m3
Nitrogen Dioxide: 2.03 μg/m3
Sulphur Dioxide: 0.73 μg/m3
Ozone: 90.08 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:01 PM
Sunset: 8:24 PM
Daylight: 14 hrs 46 mins

Moonrise: 6:06 PM
Moon Transit: 10:47 PM
Moonset: 2:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%

Best Times for Fishing or Hunting

Major Periods

5:48 AM - 8:18 AM
12:00 AM - 12:00 AM

Minor Periods

5:36 PM - 7:06 PM
2:16 AM - 3:46 AM

Action Rating: 3 out of 5

Saturday, June 27, 2026

Weather Forecast

Conditions: Patchy rain nearby

High Temperature: 57.3°F

Low Temperature: 39.8°F

Average Temperature: 49.1°F

Average Humidity: 66%

Precipitation: 0.01 in

Chance of Rain: 21%

Chance of Snow: 0%

Maximum Wind: 14.5 mph

UV Index: 11.1

Air Quality

AQI: 1 - Good

PM2.5: 3.25 μg/m3

PM10: 4.18 μg/m3

Carbon Monoxide: 98.17 μg/m3
Nitrogen Dioxide: 2.21 μg/m3
Sulphur Dioxide: 0.42 μg/m3
Ozone: 70.42 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:01 PM
Sunset: 8:24 PM
Daylight: 14 hrs 46 mins

Moonrise: 7:04 PM
Moon Transit: 11:37 PM
Moonset: 3:24 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

6:37 AM - 9:07 AM
12:00 AM - 12:00 AM

Minor Periods

6:34 PM - 8:04 PM
2:54 AM - 4:24 AM

Action Rating: 3 out of 5

Sunday, June 28, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 55.9°F

Low Temperature: 36.1°F

Average Temperature: 46.6°F

Average Humidity: 44%

Precipitation: 0 in

Chance of Rain: 1%

Chance of Snow: 0%

Maximum Wind: 11.6 mph

UV Index: 9.3

Air Quality

AQI: 1 - Good

PM2.5: 3.39 μg/m3

PM10: 4.28 μg/m3

Carbon Monoxide: 93.42 μg/m3
Nitrogen Dioxide: 2.56 μg/m3
Sulphur Dioxide: 0.43 μg/m3
Ozone: 83.54 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:01 PM
Sunset: 8:24 PM
Daylight: 14 hrs 46 mins

Moonrise: 7:58 PM
Moon Transit: 12:00 AM
Moonset: 4:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:28 AM - 9:58 AM

Minor Periods

7:28 PM - 8:58 PM
3:40 AM - 5:10 AM

Action Rating: 3 out of 5

Monday, June 29, 2026

Weather Forecast

Conditions: Sunny

High Temperature: 65°F

Low Temperature: 42.9°F

Average Temperature: 53.6°F

Average Humidity: 32%

Precipitation: 0 in

Chance of Rain: 1%

Chance of Snow: 0%

Maximum Wind: 10.7 mph

UV Index: 9.7

Air Quality

AQI: 1 - Good

PM2.5: 2.5 μg/m3

PM10: 3.26 μg/m3

Carbon Monoxide: 97.91 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 0.55 μg/m3
Ozone: 79.88 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:01 PM
Sunset: 8:24 PM
Daylight: 14 hrs 45 mins

Moonrise: 8:45 PM
Moon Transit: 12:29 AM
Moonset: 5:01 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
8:19 AM - 10:49 AM

Minor Periods

8:15 PM - 9:45 PM
4:31 AM - 6:01 AM

Action Rating: 5 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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Water Temperature of the Merced River in Yosemite Valley, CA

Current Water Temperature

Temperature Locations

Local Points of Interest

Nearby Water Temperatures

Weather for Yosemite Valley, California

Current Weather

Five Day Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Wind Advisory issued June 25 at 10:30AM PDT until June 27 at 5:00AM PDT by NWS Hanford CA

Wind Advisory issued June 25 at 2:19PM PDT until June 27 at 5:00AM PDT by NWS Hanford CA

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Webcams Near Yosemite Valley, CA

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