South Lake Tahoe Weather: September
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Average Day Temperature: | 71.9°F |
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Average Night Temperature: | 51.0°F |
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Sea Water Temperature: | 67.3°F |
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Number of Sunny Days: | 25 days |
| Sunshine Hours: | 11.8 - 13.0 hours | |
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Number of Rainy Days: | 0 days |
| Precipitation Totals: | 0.2 in | |
| detailed information | ||
forecast
| South Lake Tahoe |
Temperature
| South Lake Tahoe |
Air Temperature in September, °F
The highest day temperature in September 2025 was 83°F. The lowest night temperature was 41°F. The average values for day and night temperatures during September were 70.7°F и 52.6°F respectivly.
South Lake Tahoe Water Sea Temperature in September, °F
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.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for South Lake Tahoe is 0.2 in. It makes september one of the least rainy months of the year.
The average wind speed in September is 6.1 mph. This value is relatively stable throughout the year.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for South Lake Tahoe in September is 10.6 hours.
| Chicago | ![]() |
-2 |
| Hawaii | ![]() |
+78 |
| Honolulu | ![]() |
+78 |
| Houston | ![]() |
+44 |
| Las Vegas | ![]() |
+40 |
| Los Angeles | ![]() |
+52 |
| Maui | ![]() |
+72 |
| Miami | ![]() |
+72 |
| Miami Beach | ![]() |
+80 |
| New York | ![]() |
+20 |
| San Diego | ![]() |
+54 |
| San Francisco | ![]() |
+46 |
| Sarasota | ![]() |
+62 |
| Tampa | ![]() |
+62 |
| Washington | ![]() |
+28 |
| 0300 | ![]() |
32°F | N 1 mph |
| 0600 | ![]() |
30°F | W 1 mph |
| 0900 | ![]() |
30°F | W 4 mph |
| 1200 | ![]() |
40°F | W 4 mph |
| 1500 | ![]() |
50°F | SW 2 mph |
| 1800 | ![]() |
46°F | NE 2 mph |
| 2100 | ![]() |
40°F | NE 5 mph |
| 0000 | ![]() |
38°F | NE 7 mph |

































