World Resorts USA Yosemite Weather

Yosemite sea water temperature

Current sea water temperature:
+46.6°F
Minimum sea water temperature in December: 49.8°F
Maximum sea water temperature in December: 38.8°F
Average sea water temperature in December: 44.5°F

Sea water temperature for the last 10 days:

December 4 46.6°F November 29 47.1°F
December 3 46.8°F November 28 47.5°F
December 2 46.8°F November 27 47.8°F
December 1 46.8°F November 26 48.4°F
November 30 46.8°F November 25 48.7°F

When is the warmest sea in Yosemite?

Based on the data about daily sea water temperature for the last three years the warmest sea in Yosemite was noticed in August, July and September.

Monthly Sea Temperatures in Yosemite, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 69.3°F. The highest and lowest sea temperatures during the month were 70.3°F and 68.4°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 68.4°F. The highest and lowest sea temperatures during the month were 70.5°F and 65.7°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 65.6°F. The highest and lowest sea temperatures during the month were 68.4°F and 61.7°F.

Best time for vacation in Yosemite

Sunniest months:
August 28 days
July 27 days
June 25 days
Warmest months:
July 73.0 °F
August 72.8 °F
September 65.9 °F
Warmest sea temp:
August 67.4 °F
July 66.9 °F
September 63.8 °F
Coldest months:
February 35.6 °F
December 36.0 °F
January 36.4 °F
Rainiest months:
May 3 days
July 2 days
April 2 days
Windiest months:
June 7.2 mph
August 6.9 mph
July 6.8 mph

Yosemite on a weather map

Yosemite
+39°F
SW 6 mph
Feels like: +36°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+77°F
+77°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+9°F
24 Hours Forecast
Yosemite
Local time: 20:09
December 04, thursday
2100
39°F
SW
6 mph
December 05, friday
0000
37°F
W
6 mph
0300
37°F
W
7 mph
0600
37°F
SW
7 mph
0900
39°F
SW
6 mph
1200
50°F
E
2 mph
1500
52°F
E
3 mph
1800
48°F
SW
4 mph
Units of measurement: °C / °F