Yellowstone · August
Yellowstone in August
August is the busiest time to visit Yellowstone — about as busy as July, busier than September.
Crowd score
How busy it gets
The park's busiest time. Reservations, early starts, and patience recommended.
About 95% of this park's busiest month.
Source: NPS Visitor Use Statistics, 2023–2025
Data: NPS visitation 2023–2025 · crowd scores computed Jul 2026 · alerts checked Jul 10, 2026. How this is calculated →
Computed from federal data · Methodology by Sharon Ben-Moshe
Visitation
Typical August visits vs. the year
Typical monthly recreation visits, averaged over the most recent three full years.
Source: NPS Visitor Use Statistics, 2023–2025
Weather
August weather
- Avg high
- 79°F
- Avg low
- 45°F
- Precipitation
- 1.4"
- Sunrise
- 5:25 AM
- Sunset
- 7:26 PM
- Daylight
- 14h
Source: NOAA 1991–2020 climate normals, Yellowstone (Lake Yellowstone)
What's open
Yellowstone in August: access
Open 24 hours in season; most roads close to cars early Nov to late Apr
Seasonal closures may apply:
- Road Closure
Seasonal road closures in effect
Most park roads are closed to regular vehicles between early November and late April. Check current road status before traveling.
Details on nps.gov → - Park Closure
Biscuit Basin Closed Due to Hydrothermal Explosion
The parking lot, boardwalk, and Firehole River at Biscuit Basin, located north of Old Faithful, is closed to all travel until further notice due to the possibility of another event at the site of a hydrothermal explosion that occurred July 23, 2024.
Details on nps.gov → - Information
Select rivers closed to fishing daily, 2 p.m. to sunrise
The following rivers and their tributaries will close daily from 2 p.m. to sunrise due to warm water temperatures and low flows: Madison River, Firehole River, and Gibbon River.
Details on nps.gov →
Source: NPS Data API
Conditions
Current alerts
- Road Closure
Seasonal road closures in effect
Most park roads are closed to regular vehicles between early November and late April. Check current road status before traveling.
Details on nps.gov → - Information
Vehicle Entrance Reservation Not Needed
Although an entrance pass is required to enter Yellowstone National Park, vehicle reservations are not needed. You are encouraged to purchase an entrance pass before arriving, but you may also purchase passes at any entrance station upon arrival.
Details on nps.gov → - Information
Traffic Delays - Gardner River High Bridge
Expect a single lane of traffic with up to 15-minute delays, 24 hours a day, seven days a week, from April 1 through late October 2026. Oversized/overweight vehicles (8'6"+ wide, 75'+ long, 80,000 lbs+ gross vehicle weight) will not be able to cross the bridge during this time.
Details on nps.gov → - Park Closure
Biscuit Basin Closed Due to Hydrothermal Explosion
The parking lot, boardwalk, and Firehole River at Biscuit Basin, located north of Old Faithful, is closed to all travel until further notice due to the possibility of another event at the site of a hydrothermal explosion that occurred July 23, 2024.
Details on nps.gov → - Information
Traffic Delays - Gibbon River Bridge
Expect up to 15-minute delays on Gibbon River Bridge from July 9 through late-July while crews repair the railing.
Details on nps.gov → - Information
Select rivers closed to fishing daily, 2 p.m. to sunrise
The following rivers and their tributaries will close daily from 2 p.m. to sunrise due to warm water temperatures and low flows: Madison River, Firehole River, and Gibbon River.
Details on nps.gov →
Source: NPS Data API
Context
Yellowstone crowds across the year
Alternatives
Quieter nearby in August
FAQ
Yellowstone in August
How busy is Yellowstone in August?
August rates 10/10 for crowds (Peak) at Yellowstone National Park — about 95% of its busiest month. Typical recreation visits: 990,229.
What is the weather like at Yellowstone in August?
In August, Yellowstone averages a high of 79°F and a low of 45°F, with about 1.4 inches of precipitation.