# Mt. SAC - Randall Planetarium, United States: what it is and when to go

> Mt. SAC - Randall Planetarium is a planetarium in United States (Glendora). Interests: With kids and Stargazing. The best time to visit is March to October. In June there are 14 h 15 of daylight, and in December, 9 h 44. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip.

- Address: https://kokai.app/en/paises/america/estados-unidos/mt-sac-randall-planetarium/
- Reviewed on: 2026-10-08
- Language: en

## In a nutshell

- **What it is:** Planetarium · With kids, Stargazing
- **Where:** United States
- **Best time:** March to October.
- **Nearest airport:** LAX Los Angeles, 53 km as the crow flies
- **Run by:** Mt. San Antonio College
- **Coordinates:** 34.04746, -117.84321

## What it is and where

Mt. SAC - Randall Planetarium is a planetarium in United States (Glendora).

It is in [Glendora](https://kokai.app/en/paises/america/estados-unidos/glendora/), where this site lists 11 more places to see, 12 km from the centre.

Its coordinates are 34.04746, -117.84321; the nearest main airport is Los Angeles International Airport (LAX, Los Angeles), 53 km as the crow flies. How to get around United States (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#moverse).

- [Where it is](https://www.google.com/maps/search/?api=1&query=34.04746%2C-117.843214)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=34.04746%2C-117.843214)

- **Run by:** Mt. San Antonio College

It is one of the [With kids](https://kokai.app/en/paises/america/estados-unidos/familia/) and [Stargazing](https://kokai.app/en/paises/america/estados-unidos/estrellas/) places in United States. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap.

## When to go

The best time to visit Mt. SAC - Randall Planetarium is **March to October**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Possible | 9 h 58 |
| February | Possible | 10 h 47 |
| March | Best time | 11 h 45 |
| April | Best time | 12 h 51 |
| May | Best time | 13 h 46 |
| June | Best time | 14 h 15 |
| July | Best time | 14 h 04 |
| August | Best time | 13 h 16 |
| September | Best time | 12 h 12 |
| October | Best time | 11 h 08 |
| November | Possible | 10 h 11 |
| December | Possible | 9 h 44 |

In June there are 14 h 15 of daylight, and in December, 9 h 44. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather.

| What you come for | Best time | Possible |
| --- | --- | --- |
| With kids | March to October | November to February |
| Stargazing | — | November to March |

It is not the same trip whatever you come for: Mt. SAC - Randall Planetarium has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you.

When to go to United States in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#cuando-ir).

## Before you go to United States

To enter United States there are 9 things to sort out before you leave, starting with “Book national parks and cars in advance”: they are all, with their deadlines, in [the United States checklist](https://kokai.app/en/paises/america/estados-unidos/#antes-de-salir). Currency: US dollar (USD); plugs: Type A and B · 120 V · 60 Hz (you need an adapter, and check your devices' voltage); emergencies: 911 for everything.

In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it.

## What is nearby

- [Elephant Hill](https://kokai.app/en/paises/america/estados-unidos/elephant-hill/): Mountain in California, United States of America · 4.3 km
- [Wally Parks NHRA Motorsports Museum](https://kokai.app/en/paises/america/estados-unidos/wally-parks-nhra-motorsports-museum/): Automotive museum in California, United States · 8.2 km
- [South Hills Park](https://kokai.app/en/paises/america/estados-unidos/south-hills-wilderness-area/): Park in the United States of America · 8.4 km
- [Feathered Serpent Brewery](https://kokai.app/en/paises/america/estados-unidos/feathered-serpent-brewery/): Brewery · 11 km
- [El Campo Santo](https://kokai.app/en/paises/america/estados-unidos/el-campo-santo/): Historic cemetery in Industry, California · 12 km

Distances are as the crow flies. Everything else is in [the United States guide](https://kokai.app/en/paises/america/estados-unidos/).

## More in United States: With kids

- [Disneyland](https://kokai.app/en/paises/america/estados-unidos/disneyland/): American theme park in California owned by The Walt Disney Company
- [Walt Disney World](https://kokai.app/en/paises/america/estados-unidos/walt-disney-world/): resort and entertainment complex in Bay Lake and Lake Buena Vista, Florida, United States
- [Bronx Zoo](https://kokai.app/en/paises/america/estados-unidos/bronx-zoo/): metropolitan zoo in the Bronx, New York City, New York, USA
- [San Diego Zoo](https://kokai.app/en/paises/america/estados-unidos/san-diego-zoo/): zoo in Balboa Park, San Diego, California, United States
- [The Strat](https://kokai.app/en/paises/america/estados-unidos/the-strat/): hotel, casino, and tower located in Las Vegas
- [National Zoological Park](https://kokai.app/en/paises/america/estados-unidos/parque-zoologico-nacional/): zoological park in Washington, D.C., United States

Every United States place under With kids, each with its season, is on [its page](https://kokai.app/en/paises/america/estados-unidos/familia/).

## Frequently asked questions

### What is Mt. SAC - Randall Planetarium?

It is a planetarium in United States.

### When is the best time to visit Mt. SAC - Randall Planetarium?

March to October. In June there are 14 h 15 of daylight, and in December, 9 h 44.

### How do you get to Mt. SAC - Randall Planetarium?

The nearest main airport is Los Angeles International Airport (LAX), 53 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=34.04746%2C-117.843214) opens the route on the map, and how to get around United States is explained in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#moverse).

### How do I add it to my trip?

With one tap. In Kokai it is already on the United States map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby.

### What else is around here?

Nearby you have [Elephant Hill](https://kokai.app/en/paises/america/estados-unidos/elephant-hill/), [Wally Parks NHRA Motorsports Museum](https://kokai.app/en/paises/america/estados-unidos/wally-parks-nhra-motorsports-museum/), [South Hills Park](https://kokai.app/en/paises/america/estados-unidos/south-hills-wilderness-area/). The rest is in [the United States guide](https://kokai.app/en/paises/america/estados-unidos/).

Data from [OpenStreetMap](https://www.openstreetmap.org/node/8871639200), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/), CC0. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).