Measurements:
°C
°F
Yosemite
82°F
E 10 mph
Feels like: 78°F
Precip: 0%
World Resorts USA Yosemite Weather

Yosemite Sea Water Temperature

Current Sea Water Temperature:
+74.2°F
Maximum Sea Water Temperature in July: 76.4°F
Minimum Sea Water Temperature in July: 30.0°F
Average water temperature in July: 68.8°F

Sea Water Temperature for the Last 10 Days:

July 15 74.2°F July 10 72.0°F
July 14 74.4°F July 09 72.6°F
July 13 74.6°F July 08 71.2°F
July 12 74.6°F July 07 71.0°F
July 11 74.6°F July 06 70.8°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Yosemite was 71.8°F. The maximum and minimum values were 69.2°F and 74.6°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 34.4 °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 +88
Hawaii +80
Houston +90
Las Vegas +120
Los Angeles +106
Maui +76
Miami +100
Myrtle Beach +96
New York +114
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
24 Hours Weather Forecast
Yosemite
Local time: 11:17
15 jul, wednesday
1200 82°F
E
10 mph
1500 84°F
E
12 mph
1800 78°F
E
9 mph
2100 62°F
SW
4 mph
16 jul, thursday
0000 62°F
W
6 mph
0300 62°F
W
6 mph
0600 60°F
W
6 mph
0900 74°F
NE
5 mph