Measurements:
°C
°F
Yosemite
30°F
NW 5 mph
Feels like: 24°F
Precip: 12%
World Resorts USA Yosemite Weather

Yosemite Sea Water Temperature

Current Sea Water Temperature:
+55.4°F
Maximum Sea Water Temperature in October: 65.8°F
Minimum Sea Water Temperature in October: 30.0°F
Average water temperature in October: 56.5°F

Sea Water Temperature for the Last 10 Days:

October 26 55.4°F October 21 57.8°F
October 25 56.2°F October 20 58.4°F
October 24 56.8°F October 19 59.0°F
October 23 57.4°F October 18 58.2°F
October 22 57.8°F October 17 58.4°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Yosemite was 75.5°F. The maximum and minimum values were 72.6°F and 78.2°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: 2026 2025 2024

The average sea surface temperature in September 2026 for Yosemite was 66.1°F. The maximum and minimum values were 62.2°F and 71.4°F respectively.

Best Time to Visit Yosemite
The most sunny months:
August 27 days
July 27 days
June 25 days
The most warm months:
July 75.8 °F
August 75.5 °F
September 67.5 °F
Warmest sea temperature:
August 69.7 °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
F°
Boston +58
Chicago +58
Hawaii +80
Houston +74
Las Vegas +64
Los Angeles +74
Maui +72
Miami +82
New York +62
Panama City Beach +64
San Diego +74
San Francisco +60
Santa Monica +72
Tampa +74
Washington +58
24 Hours Weather Forecast
Yosemite
Local time: 20:50
26 oct, monday
2100 30°F
NW
5 mph
27 oct, tuesday
0000 28°F
NW
4 mph
0300 28°F
NW
6 mph
0600 26°F
NW
5 mph
0900 44°F
N
4 mph
1200 52°F
NE
10 mph
1500 50°F
NE
11 mph
1800 32°F
N
6 mph