August in Yosemite: climate and what to expect
“Mild and bright — an underrated time to visit.”
Roughly 4 rainy days across the month, on average.
August in Yosemite means warm days and cool nights—highs averaging 21.5°C (71°F) and lows dropping to 7.9°C (46°F). The elevation keeps temperatures moderate even in the height of summer. Rain is sparse at just 21.2 mm across 4.5 days, so you'll see 13 hours of sunshine daily. Early mornings carry a crisp chill; afternoons warm up quickly; evenings cool fast once the sun dips behind the granite walls. The air feels dry, and afternoon thunderstorms are brief when they arrive, often clearing by dusk.
August is peak season in Yosemite. Valley floors are packed with families, tour groups, and international visitors. Parking fills by 9 AM on most days. Waterfalls are lower than spring but still flowing, and wildflower meadows fade as summer deepens. Lodging rates hit their yearly high, campsites book months ahead, and shuttle queues test your patience. But the crowds come for a reason—the weather is genuinely excellent for hiking and photography, with stable, clear conditions that make planning easier.
Over the past decade, August temperatures in Yosemite have remained stable, hovering around 21–22°C for highs. 2026 forecasts align with this historical norm, suggesting no unusual heat spikes or wet patterns compared to recent years. The park's high altitude continues to buffer extreme temperatures that hit lower elevations.
August suits families with school holidays, serious hikers tackling high-altitude trails now snow-free, and photographers chasing golden-hour light on El Capitan and Half Dome. Budget travelers should book well ahead or plan for premium prices. If you prefer solitude, August is not your month—visit May or September instead. Bring layers, sunscreen, and water; the sun is intense at elevation despite moderate air temperatures.
The Valley is 1% of Yosemite's area but gets 95% of visitors — locals go to Hetch Hetchy (the reservoir that flooded a valley John Muir called equal to Yosemite Valley) which requires a permit and gets no crowds. The Ahwahnee Hotel was renamed 'The Majestic Yosemite' for years due to a trademark dispute with a former concessionaire; the original name returned in 2019. Half Dome cables require a permit lottery, and rangers pull unclipped hikers off in bad weather. Skip Curry Village pizza; drive to El Portal's Yosemite View Lodge or bring your own dinner.
What to pack for Yosemite in August
Layer for Yosemite's dramatic temperature swings. Mornings are cold; afternoons warm; evenings chill fast. Bring a light insulating layer you can shed easily, plus sun protection for the intense high-altitude UV.
- Merino wool base layer (moisture-wicking, warm even when damp)
- Lightweight fleece vest (easy to pack, quick warmth)
- Sun hat with brim (essential—UV is strong at 1,200m elevation)
- Hiking shorts and moisture-wicking shirt
- Light rain jacket (brief afternoon storms do occur)
What to pack for Yosemite in August
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Where to stay in Yosemite
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Things worth doing
Half Dome or Mist Trail hike, sunrise at Glacier Point, kayaking on Tenaya Lake, evening ranger talk at Valley Lodge.
August vs. the rest of the year
How this month compares in Yosemite. Tap any month to read more.
highlighted months are among the best time to visit.
Best time to visit Yosemite
August is one of the best months to visit Yosemite — alongside June, July, September. 11-year climate data (2015–2025) confirms it: comfortable temperatures, manageable rainfall, and a healthy dose of sunshine.
See the full best-time-to-visit guide for YosemiteOther places with a similar climate right now
Yosemite in August — FAQ
Q01Is August a good month for Yosemite?
Is August a good month for Yosemite?
Yes — this is one of the best months of the year to visit. In August, Yosemite averages a high of 22°C (71°F) and a low of 8°C (46°F), with 21mm of rainfall across roughly 4 rainy days. Mid-May through early June the waterfalls hit peak flow from Sierra snowmelt — Yosemite Falls, Bridalveil, Vernal all thunder — and Tioga Pass opens without July's four-hour Valley entrance queues.
Q02How warm does Yosemite get in August?
How warm does Yosemite get in August?
The average high temperature in Yosemite during August is 22°C (71°F), with an average low of 8°C (46°F). These figures are averaged from 11 complete years of daily records (2015–2025, Open-Meteo Archive). July 35C on the Valley floor sends locals to the Merced River sandbars at Sentinel Beach or up to Tuolumne Meadows at 8,600 feet where it's 20 degrees cooler.
Q03Does it rain a lot in Yosemite in August?
Does it rain a lot in Yosemite in August?
Yosemite averages approximately 4 rainy days in August, with a total monthly rainfall of about 21mm. This is based on daily precipitation records where days with 1mm or more of rain are counted as rainy days.
Q04What clothes should I bring to Yosemite in August?
What clothes should I bring to Yosemite in August?
For Yosemite in August, pack layered clothing for changing temperatures, a merino base layer for evenings, sunscreen and sunglasses, comfortable walking shoes. These recommendations are based on 11 complete years of weather averages for this specific month. Bear canister for backcountry (rentable at wilderness centers) — hanging food from trees is banned since 2004 because Yosemite bears learned to defeat every knot.
Q05Are there many tourists in Yosemite in August?
Are there many tourists in Yosemite in August?
Tourist crowds in Yosemite during August are typically moderate. Consider this when planning accommodation — prices track crowd levels closely. The Valley is 1% of Yosemite's area but gets 95% of visitors — locals go to Hetch Hetchy (the reservoir that flooded a valley John Muir called equal to Yosemite Valley) which requires a permit and gets no crowds. The Ahwahnee Hotel was renamed 'The Majestic Yosemite' for years due to a trademark dispute with a former concessionaire; the original name returned in 2019. Half Dome cables require a permit lottery, and rangers pull unclipped hikers off in bad weather. Skip Curry Village pizza; drive to El Portal's Yosemite View Lodge or bring your own dinner.