Measurements:
°C
°F
Yosemite
38°F
SW 6 mph
Feels like: 34°F
Precip: 0%
World Resorts USA Yosemite Weather

Yosemite Sea Water Temperature

Current Sea Water Temperature:
+46.2°F
Maximum Sea Water Temperature in December: 49.8°F
Minimum Sea Water Temperature in December: 37.6°F
Average water temperature in December: 43.9°F

Sea Water Temperature for the Last 10 Days:

December 04 46.2°F November 29 46.8°F
December 03 46.4°F November 28 47.2°F
December 02 46.4°F November 27 47.6°F
December 01 46.4°F November 26 48.2°F
November 30 46.4°F November 25 48.6°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
December 34.5 °F
January 34.9 °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 0
Hawaii +78
Honolulu +78
Houston +46
Las Vegas +44
Los Angeles +56
Maui +72
Miami +72
Miami Beach +80
New York +20
San Diego +58
San Francisco +48
Sarasota +64
Tampa +64
Washington +28
24 Hours Weather Forecast
Yosemite
Local time: 21:59
05 dec, friday
0000 36°F
W
6 mph
0300 36°F
W
7 mph
0600 36°F
SW
7 mph
0900 38°F
SW
6 mph
1200 50°F
E
2 mph
1500 52°F
E
3 mph
1800 48°F
SW
4 mph
2100 48°F
W
6 mph