The San Diego museums that close early in the week
Monday is not the trap day — Tuesday and Wednesday are. The Museum of Art closes Wednesdays, Mingei Mondays, the Timken Monday and Tuesday, and MOPA Monday through Wednesday. The big Balboa Park museums are open daily.
- Worst day to arrive
- Wednesday
- Never closed weekly
- Zoo, Midway, theNAT
- Most restricted
- MOPA
SDMA and MOPA both closed
Plus Fleet and Air & Space
Thursday to Sunday only
The short version
- The Natural History Museum, Fleet Science Center, Air & Space Museum and Museum of Us are open seven days a week.
- San Diego Museum of Art closes Wednesdays — not Mondays, which catches people out.
- The Timken closes Monday and Tuesday; Mingei closes Monday; MOPA is only open Thursday through Sunday.
- The New Children's Museum closes Tuesdays, and the Zoo, the Midway and Birch Aquarium never close weekly at all.
- Balboa Park's own visitor site publishes no hours-at-a-glance table, which is why this catches people.
The received wisdom is that museums close on Mondays, so a Monday in San Diego is a write-off. That is close to backwards here. The four biggest Balboa Park institutions are open every day of the week, and the closures that will actually ruin your plan land on Tuesday and Wednesday.
What closes, and when
| Museum | Closed |
|---|---|
| Museum of Photographic Arts (MOPA) | Monday, Tuesday, Wednesday |
| Timken Museum of Art | Monday and Tuesday |
| San Diego Museum of Art | Wednesday |
| Mingei International Museum | Monday |
| The New Children's Museum | Tuesday |
| San Diego Natural History Museum | — open daily |
| Fleet Science Center | — open daily |
| San Diego Air & Space Museum | — open daily |
| Museum of Us | — open daily |
| San Diego Zoo | — open every day of the year |
| USS Midway Museum | — open daily |
| Birch Aquarium at Scripps | — open daily |
From each institution's own visitor page, checked September 2026. All also close for Thanksgiving and Christmas; several publish one-off closure dates.
The one that is open when nothing else is
The San Diego Zoo Wildlife Alliance states it plainly: the Zoo and the Safari Park are open every day of the year, rain or shine, including all holidays. So is the USS Midway, except Thanksgiving and Christmas. If you have one fixed day and it happens to be a bad one for museums, those are the reliable fallbacks.
Free days worth planning around
Mingei is free for everyone on the third Tuesday of the month, and $5 for everyone after 5pm on Fridays. Its ground floor, with the shop and café, is always free. The Timken is free every day it is open — which makes its Monday–Tuesday closure the one most worth checking, because there is no ticket price to soften the wasted trip.
SOURCES
Everything above traces back to one of these. Follow them — if one has changed and we haven't, that's our mistake, not yours.
- PrimaryHours and admission
San Diego Museum of Art
SDMA closed Wednesdays; MOPA open Thursday to Sunday
- PrimaryVisit
Timken Museum of Art
Closed Monday and Tuesday; admission always free
- PrimaryVisit
Mingei International Museum
Closed Mondays; free third Tuesday; $5 after 5pm Fridays
- PrimaryVisit
San Diego Natural History Museum
Open daily, no weekly closure
- PrimaryHours and admission
Fleet Science Center
Open daily
- PrimaryVisit
San Diego Air & Space Museum
Open seven days a week
- PrimaryYour visit
Museum of Us
Open daily
- PrimaryHelp center
San Diego Zoo Wildlife Alliance
Zoo and Safari Park open every day of the year
- PrimaryVisit
Birch Aquarium at Scripps
Open daily; free three-hour parking
- BackgroundVisit
Balboa Park
No consolidated museum hours table published