Measurements:
°C
°F
South Lake Tahoe
74°F
NE 18 mph
Feels like: 76°F
Precip: 2%
World Resorts USA South Lake Tahoe Weather

South Lake Tahoe Sea Water Temperature

Current Sea Water Temperature:
+71.0°F
Maximum Sea Water Temperature in August: 75.8°F
Minimum Sea Water Temperature in August: 65.8°F
Average water temperature in August: 70.8°F

Sea Water Temperature for the Last 10 Days:

August 25 71.0°F August 20 71.6°F
August 24 71.2°F August 19 71.6°F
August 23 71.4°F August 18 71.0°F
August 22 71.4°F August 17 71.8°F
August 21 71.8°F August 16 72.4°F

When is the Warmest Sea for South Lake Tahoe?

According to our data for the last three years for South Lake Tahoe 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 South Lake Tahoe was 72.7°F. The maximum and minimum values were 71.0°F and 75.8°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for South Lake Tahoe was 68.9°F. The maximum and minimum values were 63.0°F and 72.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for South Lake Tahoe was 67.7°F. The maximum and minimum values were 65.8°F and 70.2°F respectively.

Best Time to Visit South Lake Tahoe
The most sunny months:
July 27 days
September 25 days
August 25 days
The most warm months:
July 80.1 °F
August 78.5 °F
September 71.9 °F
Warmest sea temperature:
August 70.8 °F
July 69.5 °F
September 67.3 °F
The most cold months:
January 36.1 °F
February 37.3 °F
December 38.9 °F
The most rainy months:
December 2 days
January 1 day
April 1 day
The most windy months:
March 7 mph
June 7 mph
February 6 mph

South Lake Tahoe on the Weather Map

USA Resorts:
NAME
Boston +80
Chicago +80
Hawaii +84
Houston +106
Las Vegas +116
Los Angeles +96
Maui +70
Miami +92
Myrtle Beach +84
New York +82
San Diego +96
San Francisco +64
Santa Monica +86
Sarasota +92
Washington +84
24 Hours Weather Forecast
South Lake Tahoe
Local time: 14:38
25 aug, tuesday
1500 74°F
NE
18 mph
1800 70°F
NE
17 mph
2100 58°F
NE
7 mph
26 aug, wednesday
0000 56°F
NE
7 mph
0300 54°F
NE
6 mph
0600 54°F
NE
6 mph
0900 68°F
NE
7 mph
1200 74°F
NE
16 mph