Climateby Month

South Lake Tahoe, CA weather in August

NOAA 1991-2020 normals and daily records · South Lake Tahoe all year

Expect warm, dry weather in South Lake Tahoe in August, with highs near 80°F and lows near 41°F. Rain falls on about 2 days. It is one of the warmest months in South Lake Tahoe. Great for outdoor plans.

Normal high
80°F
Normal low
41°F
Wet days
2
0.3 in total
Muggy days
0
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high81°F78°F
Normal low43°F38°F
Chance of a wet day5%6%
Sunrise / sunset6:00 am / 8:11 pm6:28 am / 7:32 pm
Daylight14.2 h13.1 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).

A typical August day

  1. 6 am64°Fdew point 36°F
  2. 9 am71°Fdew point 38°F
  3. Noon75°Fdew point 39°F
  4. 3 pm75°Fdew point 40°F
  5. 6 pm72°Fdew point 41°F
  6. 9 pm66°Fdew point 41°F

NOAA hourly normals (local standard time) from Blue Canyon Airport (46 mi away); average wind 5 mph.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F14 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow2 of 31
  • Notable rainat least 0.10 in2 of 31
  • Freezing nightslow 32°F or below2 of 31
  • Snow on the groundsnow depth 1 in or more0 of 31

Average days per August, counted from daily records for each year 1991-2020.

Rain in August

Normal precipitation is 0.3 in; a dry August brings about 0.0 in and a wet one about 0.6 in (25th and 75th percentiles). Days with half an inch or more are rare. Snow is very rare.

How August varies from year to year

  • Warmest August, 1991-20202020: average high 84°F
  • Coolest August1999: average high 75°F
  • Wettest August2014: 1.7 in
  • Driest August1993: no measurable precipitation
  • Highest reading91°F (August 17, 2020)
  • Lowest reading26°F (August 28, 1991)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

August compared with July and September

JulyAugustSeptember
Normal high80°F80°F73°F
Normal low43°F41°F35°F
Wet days122
Comfortable days121421
Daylight14.6 h13.7 h12.4 h

Highs change by 0°F from July and -7°F into September.

Nearby alternatives in August

How South Lake Tahoe ranks in August

  • Normal high314th warmest of 378 cities; 44th of 60 in California
  • Wet days59th driest of 378
  • Comfortable days35th most of 341

What to pack for South Lake Tahoe in August

  • Layers – afternoons near 80°F but nights near 41°F

Heating and cooling

August has 153 heating degree days and 9 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.

Questions

How hot is South Lake Tahoe in August?

The normal high is 80°F and the normal low is 41°F. From 1991 to 2020 the hottest August reading was 91°F (most recently on August 17, 2020).

Does it rain a lot in South Lake Tahoe in August?

About 2 days in August have at least 0.01 in of precipitation, and the normal total is 0.3 in. The wettest August in 1991-2020 was in 2014 (1.7 in); the driest was in 1993, with no measurable precipitation.

Is August a good time to visit South Lake Tahoe?

August ranks 4th of 12 months on our comfort score for South Lake Tahoe (73 out of 100). It has about 14 comfortable days. The best month is June.

Where the numbers come from

  • Temperature: South Lake Tahoe Airport (USW00093230), 2.5 mi SSW of the city center, 6,314 ft (76 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Rain: Fallen Leaf (USS0020L10S), 3.5 mi W of the city center, 6,236 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Tahoe City (USC00048758), 18 mi NNW of the city center, 6,230 ft . NOAA normals and daily records, 1991-2020.
  • Frost dates: Glenbrook (USC00263205), 10 mi NNE of the city center, 6,350 ft (112 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Blue Canyon Airport (USW00023225), 46 mi WNW of the city center, 5,276 ft (962 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Lake Tahoe Airport (725847-93230), 2.5 mi SSW of the city center, 6,257 ft . Hourly observations, 1991-2020.
  • Not available for this location: cloud cover (no station close enough or similar enough in elevation).