Last entry is 15 minutes before listed closing time.

Memorial Day Weekend: Friday-Monday, May 22-25, 2026
8 a.m.–6 p.m.

May 26 through Aug. 23, 2026
8 a.m.–5 p.m. — Sunday–Thursday*
8 a.m.–6 p.m. — Friday–Saturday*

*Friday, June 12 — 8 a.m.–noon (Zoo closes early for ZOOFARI)
*Friday-Saturday, July 3-4 — 8 a.m.-5 p.m.

*Sunday, July 19 — 11 a.m.-5 p.m. 
Sensory-Friendly morning — 8-11 a.m. with free reservation (available beginning in May)

*Tuesday, Aug. 4 — 8 a.m.-3 p.m.
*Saturday, Aug. 8 — 8 a.m.-8 p.m.
*Saturday, Aug. 15 — 8 a.m.-8 p.m.
*Friday, Aug. 21 — 8 a.m.-3 p.m.

Aug. 24 through Sept. 4, 2026
9 a.m.–5 p.m. daily*

Labor Day Weekend: Saturday-Monday, Sept. 5-7, 2026
8 a.m.–6 p.m.

The Saint Louis Zoo's operating hours are subject to change.

Sept. 8 through Oct. 7, 2026
9 a.m.–5 p.m. daily*
Last entry is 15 minutes before listed closing time.

*Friday, Sept. 11 —  9 a.m.-8 p.m.
*Saturday, Sept. 12 —  9 a.m.-6 p.m.
*Thursday, Sept. 17 — 9 a.m.-3 p.m.
*Saturday, Sept. 19 — 9 a.m.-8 p.m.
*Saturday, Sept. 26 — 9 a.m.-8 p.m. 

Oct. 8 through Dec. 31, 2026
9 a.m.–4 p.m. daily, except holidays
Last entry is 15 minutes before listed closing time.

Holiday Hours 2026:
Nov. 26 (Thanksgiving Day) — 9 a.m.–2 p.m.
Dec. 24 (Christmas Eve) — 9 a.m.–2 p.m.
Dec. 25 (Christmas Day) — Zoo closed
Dec. 31 (New Year's Eve) — 9 a.m.–3 p.m.

Jan. 1, 2027, (New Year's Day) — Zoo closed

Check back for 2027 hours.