Campsite Odds

Booking odds · August

Sibley Lake Campground in August: How Hard Is It to Book?

Sibley Lake Campground · WY · Bighorn National Forest

The verdict

Hard

Booking difficulty 9 out of 10. Competitive. Be ready when the booking window opens.

Sells out in daysBased on 3 years of reservation data

Popular August dates usually sell out within a few days of release.

Sibley Lake Campground in August scores 9 out of 10 for booking difficulty — hard. Competitive. Be ready when the booking window opens.

Across the last 3 years of reservation history, the typical August booking was locked in about 125 days before arrival, with the campground running roughly 95% full that month. The lightest arrival day is Wednesday, so shifting to a midweek start is the single easiest way to improve your odds.

Lead time

How far ahead people book

Same day: 0% of bookingsSame day1–3d: 9% of bookings9%1–3d4–7d: 7% of bookings7%4–7d1–2wk: 7% of bookings7%1–2wk2–4wk: 8% of bookings8%2–4wk1–2mo: 7% of bookings7%1–2mo2–3mo: 6% of bookings6%2–3mo3–6mo: 28% of bookings28%3–6mo6mo+: 27% of bookings27%6mo+Median booking lead time: 125 days ahead
Demand split

Weekend vs. weekday demand

Weekend (Fri–Sat)Weekday (Sun–Thu)

Best odds: arrivals are lightest on Wednesday in August. A midweek arrival is your easiest booking.

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Booking window · August 2027

When August reservations open

Reservations for Sibley Lake Campground in August 2027 operate on a rolling 6-month window releasing at 7:00 AM ET.

August 1 stays open

February 1, 2027

at 7:00 AM ET

Release style

6-Month Rolling Window

Releases daily 6 months ahead at 7:00 AM ET

Campsites for August 1, 2027 become bookable on February 1, 2027 at 7:00 AM ET. Each subsequent date throughout August releases day-by-day exactly 6 months prior to arrival.

Facility note: Standard Recreation.gov 6-month rolling window: sites become bookable 6 months before arrival at 7:00 AM ET.

Fees

How much does it cost to camp at Sibley Lake Campground?

Two non-towed vehicles allowed per site. The first vehicle is included in the basic fee; the second vehicle will be charged an extra $11.00/day fee at the campground. Firewood bundles may be purchased from the campground host. There is an additional $5 fee for the Standard Electric sites. If an Access or Senior discount pass is applied, the total will become $18.08 per night which includes taxes.

Fee details as listed on Recreation.gov. Rates and passes change by season, so confirm the current price on Recreation.gov before you book.

Plan B

Easier nearby options in August

If your dates are flexible, these nearby campgrounds are typically easier to book.

FAQ

Sibley Lake Campground in August: common questions

How hard is it to book Sibley Lake Campground in August?
Sibley Lake Campground rates 9 out of 10 for August — Hard. Competitive. Be ready when the booking window opens.
How far in advance should I book Sibley Lake Campground for August?
The typical August reservation was made about 125 days before arrival, so plan to book as early as your dates allow.
When do August reservations open for Sibley Lake Campground?
Reservations for Sibley Lake Campground in August 2027 open on a rolling 6-month window. Sites for August 1 become bookable on February 1, 2027 at 7:00 AM ET, with each subsequent day releasing day-by-day 6 months ahead.
What is the best day to arrive at Sibley Lake Campground in August?
Arrivals are lightest on Wednesday. A midweek arrival is usually the easiest booking.

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