Measurements:
°C
°F
Yosemite
42°F
SW 2 mph
Feels like: 38°F
Precip: 0%
World Resorts USA Yosemite Weather

Yosemite Sea Water Temperature

Current Sea Water Temperature:
+35.6°F
Maximum Sea Water Temperature in January: 43.8°F
Minimum Sea Water Temperature in January: 30.0°F
Average water temperature in January: 37.5°F

Sea Water Temperature for the Last 10 Days:

January 29 35.6°F January 24 36.0°F
January 28 35.6°F January 23 36.2°F
January 27 35.6°F January 22 36.4°F
January 26 35.6°F January 21 36.6°F
January 25 35.8°F January 20 36.8°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
December 35.3 °F
January 35.4 °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 +16
Hawaii +74
Honolulu +74
Houston +62
Las Vegas +48
Los Angeles +56
Maui +68
Miami +64
Miami Beach +70
New York +12
San Diego +58
San Francisco +50
Sarasota +58
Tampa +60
Washington +12
24 Hours Weather Forecast
Yosemite
Local time: 08:51
29 jan, thursday
0900 42°F
SW
2 mph
1200 48°F
E
4 mph
1500 50°F
SE
3 mph
1800 48°F
W
6 mph
2100 44°F
W
7 mph
30 jan, friday
0000 44°F
W
7 mph
0300 46°F
W
7 mph
0600 44°F
W
6 mph