Measurements:
°C
°F
South Lake Tahoe
56°F
W 4 mph
Feels like: 56°F
Precip: 0%
World Resorts USA South Lake Tahoe Weather

South Lake Tahoe Sea Water Temperature

Current Sea Water Temperature:
+56.0°F
Maximum Sea Water Temperature in May: 59.2°F
Minimum Sea Water Temperature in May: 43.6°F
Average water temperature in May: 51.8°F

Sea Water Temperature for the Last 10 Days:

May 14 56.0°F May 09 54.4°F
May 13 56.0°F May 08 54.0°F
May 12 56.6°F May 07 50.4°F
May 11 56.0°F May 06 48.6°F
May 10 54.4°F May 05 48.6°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: 2025 2024 2023

The average sea surface temperature in August 2025 for South Lake Tahoe was 70.2°F. The maximum and minimum values were 68.4°F and 73.0°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for South Lake Tahoe was 68.4°F. The maximum and minimum values were 64.8°F and 71.6°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 80.7 °F
August 78.5 °F
September 71.9 °F
Warmest sea temperature:
August 70.5 °F
July 69.6 °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
March 1 day
January 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 +62
Chicago +56
Hawaii +76
Honolulu +76
Houston +94
Las Vegas +88
Los Angeles +66
Maui +70
Miami +94
Miami Beach +90
New York +68
San Diego +66
San Francisco +62
Sarasota +94
Tampa +94
24 Hours Weather Forecast
South Lake Tahoe
Local time: 10:07
14 may, thursday
1200 64°F
S
2 mph
1500 66°F
E
14 mph
1800 60°F
E
11 mph
2100 46°F
NE
6 mph
15 may, friday
0000 42°F
NE
5 mph
0300 40°F
NE
4 mph
0600 42°F
N
3 mph
0900 56°F
E
1 mph