TONIGHT · Wed, Sep 23More reliable forecast
60/100Fair8% cloud in best window · Waxing Gibbous (89% illuminated)
Astronomical dusk: 8:12 PM GMT-7
Best 3-hour window: 2 AM–5 AM GMT-7
UPDATED HOURLY
Is Tonight Good for Stargazing in Los Angeles?
Tonight’s observing conditions and the next seven-night outlook for Los Angeles, United States.
Updated · Time zone: America/Los_Angeles.
TONIGHT · Wed, Sep 23
Los Angeles
60/100
Fair conditions for stargazing
The score includes forecast sky conditions and a Moon-phase proxy after astronomical dusk. Moonrise, local light pollution and site access are not scored; bright planets and faint deep-sky targets have different requirements.
Is tonight good for stargazing? Fair. The strongest three-hour window is 2 AM–5 AM GMT-7, with 8% forecast cloud and 89% illuminated.
Based on the strongest continuous three-hour combination of hourly cloud, visibility and humidity after astronomical dusk.
THIS WEEK
What is the best night for stargazing in Los Angeles this week?
Mon, Sep 28 is currently the strongest option in the next seven nights at 70/100, compared with tonight at 60/100. Check again before leaving.
NEXT 7 NIGHTS
Choose a better night to observe
Best upcoming night: Mon, Sep 28 · 70/100
Thu, Sep 24More reliable forecast
17/100Poor72% cloud in best window · Waxing Gibbous (95% illuminated)
Astronomical dusk: 8:10 PM GMT-7
Best 3-hour window: 4 AM–7 AM GMT-7
Fri, Sep 25More reliable forecast
39/100Challenging42% cloud in best window · Full Moon (99% illuminated)
Astronomical dusk: 8:09 PM GMT-7
Best 3-hour window: 9 PM–12 AM GMT-7
Sat, Sep 26Forecast may change
10/100Poor87% nightly average cloud · Full Moon (100% illuminated)
Astronomical dusk: 8:07 PM GMT-7
Trend only — check again closer to the date.
Sun, Sep 27Forecast may change
69/100Fair0% nightly average cloud · Full Moon (99% illuminated)
Astronomical dusk: 8:06 PM GMT-7
Trend only — check again closer to the date.
Mon, Sep 28Check again closer to the date
70/100Fair0% nightly average cloud · Waning Gibbous (96% illuminated)
Astronomical dusk: 8:04 PM GMT-7
Trend only — check again closer to the date.
Tue, Sep 29Check again closer to the date
54/100Challenging28% nightly average cloud · Waning Gibbous (91% illuminated)
Astronomical dusk: 8:03 PM GMT-7
Trend only — check again closer to the date.
The first three nights include hourly detail. Days 4–7 are more likely to change, so check again before travelling.
89% illuminated · check local moonrise and moonset
Same three-hour window as the score
Local time
Current surface visibility
CURRENT SNAPSHOT, LAYER BY LAYER
Professional observing conditions
These are current forecast fields; the tonight score above uses the best three-hour window. Compare both with local conditions before travelling.
Near-surface layer
Middle atmosphere
Thin cloud can spread skyglow
PM2.5 15.3 μg/m³ · AOD 0.10
Optics dew indicator
7Timer ASTRO model
Local time
Higher values may reduce transparency
What this forecast means in Los Angeles
Los Angeles combines strong urban skyglow with coastal haze and occasional smoke. A low cloud percentage does not guarantee deep-sky contrast, so compare high cloud, visibility and smoke risk and confirm current fire or access conditions before a longer trip.
HUMAN-REVIEWED OPTIONS
Where to try stargazing near Los Angeles
These are planning candidates, not guarantees of darkness, safety or nighttime access. A site may close before the forecast’s best window; compare its posted hours with the recommended time.
Central Los Angeles
Griffith Observatory
Good for: Moon, planets and beginner observing
A practical urban option with astronomy facilities and scheduled public telescope activities.
Before you go: City light limits faint objects. Check the observatory’s current calendar, parking rules and building hours before visiting.
Santa Monica Mountains · west of the city
Malibu Creek State Park
Good for: Bright deep-sky objects and wider horizons
More separation from central Los Angeles and broad mountain-valley views; California State Parks has hosted after-dark programs here.
Before you go: Day-use parking is currently listed as 8am–10pm. Arrive early and verify closures, fire restrictions and the latest exit time.
Desert · a long drive east of Los Angeles
Joshua Tree designated stargazing areas
Good for: Milky Way, meteor showers and astrophotography
An International Dark Sky Park with official viewing areas at Quail Springs, Hidden Valley, Cap Rock and Ryan Mountain.
Before you go: This is a destination trip, not a nearby city park. Carry water, use red lights, stay near your vehicle and avoid day-use-only areas after dusk.
Official information reviewed August 20, 2026. Always confirm current access, weather, transport and local safety conditions before leaving.
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Sources and accuracy note
This forecast combines public model data with local astronomical calculations. Missing upstream fields are shown honestly rather than estimated without support.