Measurements:
°C
°F
Yosemite
24°F
SW 2 mph
Feels like: 14°F
Precip: 0%
World Resorts USA Yosemite Weather

Yosemite Sea Water Temperature

Current Sea Water Temperature:
+40.0°F
Maximum Sea Water Temperature in January: 43.8°F
Minimum Sea Water Temperature in January: 30.0°F
Average water temperature in January: 37.6°F

Sea Water Temperature for the Last 10 Days:

January 08 40.0°F January 03 41.2°F
January 07 40.8°F January 02 40.8°F
January 06 41.4°F January 01 40.8°F
January 05 42.0°F December 31 40.4°F
January 04 41.6°F December 30 39.8°F

When is the Warmest Sea for Yosemite?

According to our data for the last three years for Yosemite the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Yosemite was 71.4°F. The maximum and minimum values were 70.4°F and 72.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Yosemite was 70.4°F. The maximum and minimum values were 67.4°F and 72.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Yosemite was 67.3°F. The maximum and minimum values were 63.0°F and 70.4°F respectively.

Best Time to Visit Yosemite
The most sunny months:
August 28 days
July 27 days
June 25 days
The most warm months:
July 75.6 °F
August 75.3 °F
September 67.6 °F
Warmest sea temperature:
August 69.4 °F
July 68.7 °F
September 65.4 °F
The most cold months:
February 34.0 °F
January 34.9 °F
December 35.3 °F
The most rainy months:
May 3 days
July 2 days
April 2 days
The most windy months:
June 7 mph
August 7 mph
July 6 mph

Yosemite on the Weather Map

USA Resorts:
NAME
Chicago +54
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +54
Los Angeles +58
Maui +72
Miami +86
Miami Beach +80
New York +52
San Diego +64
San Francisco +52
Sarasota +82
Tampa +88
Washington +60
24 Hours Weather Forecast
Yosemite
Local time: 12:30
08 jan, thursday
1500 28°F
SE
4 mph
1800 20°F
SW
7 mph
2100 20°F
W
11 mph
09 jan, friday
0000 22°F
W
11 mph
0300 24°F
W
11 mph
0600 28°F
W
11 mph
0900 34°F
W
9 mph
1200 40°F
W
2 mph