South Lake Tahoe weather in August

August in South Lake Tahoe: warm, dry, with clean air — an excellent time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

South Lake Tahoe🇺🇸 United States · California · Trekking89
  1. 64Jan
  2. 66Feb
  3. 71Mar
  4. 82Apr
  5. 91May
  6. 93Jun
  7. 86Jul
  8. 89Aug
  9. 95Sep
  10. 85Oct
  11. 74Nov
  12. 62Dec

#4 of 12 months in South Lake Tahoe · #312 of 1413 destinations to visit in August · comfort 89/100 (tier A)

Days
27°C
Nights
12°C
Wet days
1
Sun
12.5 h
Humidity
44%
Daylight
14 h
South Lake Tahoe, United States
Photo: Michael Villanueva · Pexels

Traveller notes on South Lake Tahoe in August

South Lake Tahoe-forum threads on August weather describe genuinely reliable sun and famously low humidity, daytime readings comfortably in the 80s Fahrenheit with a breeze and shade doing most of the cooling work. Posters are consistent nights turn properly cool thanks to the elevation, a sweatshirt or light jacket essential once the sun drops even after a warm afternoon on the water. Regulars call the lake itself at its warmest for swimming this time of year, paddleboarding and boating both in full swing across the whole shoreline. Wildfire smoke is flagged as a real recent concern, several posters reporting August days disrupted by haze drifting in from regional fires, worth checking current air quality before finalizing plans. Late August, once school resumes elsewhere, is called a genuine sweet spot for thinner crowds while conditions stay favorable. The record: 27.1C days feeling like 26C, 11.6C nights, a low 44 percent humidity and 13.5 hours of daylight.
SouthLakeTahoeAugustRegular · August · 1 month ago · Read more on Tripadvisor ↗

Other months in South Lake Tahoe

South Lake Tahoe-forum threads on a January visit describe non-skiing options as genuinely plentiful, posters naming boat trips, horse-drawn sleigh rides, snowmobile rentals and dog sledding as standard alternatives. Regulars call wind a real factor at Heavenly specifically, several posters naming gondola closures and limited open runs as a genuine possibility on gusty days. Posters call Kirkwood genuinely the snowiest of the Tahoe resorts, several regulars naming this the reason powder hunters often head there first after a storm. Regulars call golf availability genuinely dependent on that year's snowpack, several threads naming this a real variable worth checking before assuming courses are open. Posters recommend real flexible plans around wind and snow conditions for a January trip, several regulars calling this standard given how much daily conditions can shift. The record: 5C days, -7.1C nights, 85mm across over 7 days and 79 percent humidity.
SouthLakeTahoeJanuaryRegular · January · 1 month ago · Read more on Tripadvisor ↗
South Lake Tahoe-forum threads on an April visit describe this as genuinely an in-between season, posters calling it too late for reliable winter activities and too early for a full summer visit. Regulars call limited skiing still possible through the first three weeks of April in some years, resorts here capable of making enough snow to keep a few runs open despite the season winding down. Posters recommend Rabe Meadows for an easy lakeside walk, Eagle Lake and Cascade Falls both solid hikes near Emerald Bay for anyone wanting more distance. Regulars call hiking genuinely limited to routes clear of mud and lingering snow this month, real trail research worthwhile before committing to a specific route. Posters recommend checking whether the Heavenly gondola is running before planning around it, several April activities here still closed until late May. The record: 12.9C days feeling like 12C, -1.8C nights, 40mm across nearly 4 days and 63 percent humidity.
SouthLakeTahoeAprilRegular · April · 1 month ago · Read more on Tripadvisor ↗
South Lake Tahoe-forum threads on a July 4th week visit describe conditions as genuinely pleasant, posters reporting lake temperatures around the high seventies Fahrenheit and comfortable air temperatures throughout the stay. Regulars call the lake the real draw this time of year, wading, kayak rentals and general water activity all popular given the reliably warm, clear conditions. Posters recommend a sweatshirt for evenings regardless of how warm the day felt, temperatures dropping noticeably once the sun goes down at this elevation. Regulars call local hotels booking up fast for the holiday week, reserving well ahead standing advice. Posters describe the abundant sunshine as a real hallmark of a Tahoe July, clear skies typical across most of the month. Regulars recommend real sun protection given how many hours of direct sun a typical July day delivers here. The record: 28C days feeling like 27C, 11.2C nights, a scant 1.2 days of measurable precipitation and 39 percent humidity.
SouthLakeTahoeJulyRegular · July · 1 month ago · Read more on Tripadvisor ↗
South Lake Tahoe-forum threads on what to pack for a February trip are consistent this sits within the heaviest accumulation months, January and February both named repeatedly as the strongest stretch for skiers. Posters recommend real waterproof outer layers over pure warmth, the cold setting in fast once a jacket gets wet and stays wet through a day on the mountain. Regulars describe nighttime readings dropping well below freezing regularly, daytime highs only occasionally climbing into a comfortable range. Posters recommend timing a visit around the last week of January or first week of February while avoiding the school-holiday crush. Regulars call proper boots and gloves as important as the jacket, prolonged cold exposure a real risk without full coverage. Posters call the lake views worth bundling up for regardless of the base depth that week. The record: 5C days feeling like 2C, -7.3C nights, a notably high 91.9cm of fresh accumulation and 73 percent humidity.
SouthLakeTahoeFebruaryRegular · February · 1 month ago · Read more on Tripadvisor ↗

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South Lake Tahoe climate normals — August

Daytime high27°C / 81°F🌤 warm
Nighttime low12°C / 53°F
Feels like (high)26°C / 79°F
Rainfall9 mm / 0.3 in☀️ dry
Rainy days1 days
Humidity44%🍃 comfortable
Dew point4°C / 39°F
Sunshine12.5 h/day
Daylight13.6 h
Wind12 km/h / 8 mph
Air quality (US AQI)50🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in South Lake Tahoe in August

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsSummer peak, Summer break in United States, school holidays in 2 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for South Lake Tahoe's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherSouth Lake Tahoe's best weather comes in May, June and September — separate windows, not one continuous season.

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Best weatherFair weatherToughest weather

What's on in South Lake Tahoe in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Holiday

    Summer peak

    20 Jun – 7 SepSchool holidaysCrowdedBook early

    The Bay Area empties up here at weekends from late June, and the two-lane road round the west shore to Emerald Bay is the pinch point. Parking at the popular beaches is gone by nine. Source ↗

  • Season

    Lake warm enough to swim

    10 Jul – 10 Sep · usuallySea warm enough

    The lake is 500 metres deep and never really warms, but the shallow bays at Baldwin and Zephyr Cove get tolerable for about eight weeks from mid-July. Everywhere else is a quick, cold swim.

  • Hazard

    Wildfire smoke season

    15 Jul – 30 Sep · usually

    Smoke from California fires settles in the basin and stays because the mountains hold it, and a fire reached the edge of town in 2021. Some late summers the far shore is invisible for a week. Source ↗

What's on around the world in August →

Nearby, and something's on

Within 300 km of South Lake Tahoe — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is South Lake Tahoe?

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South Lake Tahoe in August — FAQ

Is August a good time to visit South Lake Tahoe?
August in South Lake Tahoe: warm, dry, with clean air — an excellent time to visit. It ranks #4 of 12 months for South Lake Tahoe on SeasonMap's comfort score (89/100).
What is the weather like in South Lake Tahoe in August?
In August, South Lake Tahoe averages a daily high of 27.1°C and a low of 11.6°C, with about 8.5 mm of rain over roughly 1.2 rainy days.
What is the air quality in South Lake Tahoe in August?
South Lake Tahoe has a mean US Air Quality Index of about 50 in August.

Within 300 km: Yosemite National Park's Tioga and Glacier Point roads open around 10 May – 10 Nov, and Sequoia National Park's Crystal Cave tours around 20 May – 10 Sep.