World Resorts USA Yosemite Weather

Yosemite sea water temperature

Current sea water temperature:
+44.6°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 14 44.6°F December 9 46.0°F
December 13 44.8°F December 8 46.2°F
December 12 45.1°F December 7 46.6°F
December 11 45.3°F December 6 46.6°F
December 10 45.7°F December 5 46.6°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
+50°F
W 5 mph
Feels like: +50°F
Precip.: 0%
Places in USA:
Name
°F
+21°F
+77°F
+77°F
+63°F
+66°F
+73°F
+72°F
+73°F
+23°F
+61°F
+48°F
+66°F
+64°F
+43°F
+10°F
24 Hours Forecast
Yosemite
Local time: 18:17
December 14, sunday
2100
48°F
W
7 mph
December 15, monday
0000
46°F
W
7 mph
0300
48°F
W
7 mph
0600
50°F
SW
7 mph
0900
50°F
SW
6 mph
1200
54°F
SE
4 mph
1500
54°F
SE
4 mph
1800
54°F
SW
5 mph
Units of measurement: °C / °F