Measurements:
°C
°F
Yosemite
86°F
NE 9 mph
Feels like: 82°F
Precip: 0%
World Resorts USA Yosemite Weather

Yosemite Sea Water Temperature

Current Sea Water Temperature:
+76.8°F
Maximum Sea Water Temperature in August: 78.0°F
Minimum Sea Water Temperature in August: 30.0°F
Average water temperature in August: 69.4°F

Sea Water Temperature for the Last 10 Days:

August 05 76.8°F July 31 76.4°F
August 04 77.2°F July 30 77.0°F
August 03 77.8°F July 29 77.2°F
August 02 78.0°F July 28 77.0°F
August 01 77.4°F July 27 77.2°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Yosemite was 73.9°F. The maximum and minimum values were 69.2°F and 77.2°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 75.8 °F
August 75.3 °F
September 67.6 °F
Warmest sea temperature:
August 69.4 °F
July 69.1 °F
September 65.4 °F
The most cold months:
February 34.4 °F
December 35.3 °F
January 35.5 °F
The most rainy months:
May 2 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
Boston +94
Chicago +82
Hawaii +82
Houston +106
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Yosemite
Local time: 13:25
05 aug, wednesday
1500 88°F
E
11 mph
1800 82°F
E
7 mph
2100 66°F
W
6 mph
06 aug, thursday
0000 68°F
W
6 mph
0300 66°F
W
6 mph
0600 66°F
W
6 mph
0900 80°F
E
3 mph
1200 88°F
E
10 mph