Santiago, Chile Stargazing Forecast

Santiago, Chile (-33.45°, -70.67°) · Updated 11:10 UTC
48
Mixed
medium confidence ⓘ
medium · Forecast stability

Tonight's forecast has shifted a little across recent updates — worth a re-check closer to dusk. We compare how much tonight's score has moved across our recent forecast updates, a score that's held steady is more trustworthy.

Confidence reflects how trustworthy the forecast is, it doesn't change the score.

Marginal, check the window
BEST 00:00–08:00 (8h)
Mostly clear skies but bright moonlight limits faint objects. Delta Aquariids meteor shower active.
Sunset
22:02
Sunrise
11:35
Usable Hours
8/11
Moon
100%
Visible Planets
♀ Venus26° NW
♂ Mars15° NE
♄ Saturn53° N
Open Full Santiago, Chile Forecast →
Hour-by-hour scores · Planet rise/set & visibility · ISS & satellite passes · Moon detail · Full score breakdown · Aurora & observer profiles

Stargazing in Santiago, Chile

Santiago is the world's most observatory-adjacent capital city — the Atacama Desert observatories (ALMA, Paranal, La Silla) are in the same country, and Chile hosts the majority of Earth's professional astronomical infrastructure. The city's Bortle 6–7 drops to Bortle 3 heading into the Andes (1–2 hours east). Central Chile's Mediterranean climate brings dry, clear conditions from October through April. At 33.5°S, the southern sky is fully accessible, and seeing conditions at altitude are among the world's best.

Santiago, Chile Stargazing FAQ

Why is Chile famous for astronomy?∨
Chile hosts the majority of Earth's professional astronomical infrastructure, including ALMA, the VLT at Paranal, La Silla, and the forthcoming Extremely Large Telescope. The Atacama Desert's dry air, high altitude, and stable atmosphere provide some of the world's best seeing.
Where is the best dark sky near Santiago?∨
The Andes east of Santiago reach Bortle 3 within 1-2 hours. The Elqui Valley (5 hours north) is a popular stargazing tourism destination. Further north, the Atacama offers Bortle 1 conditions.
When is the best time to stargaze in Santiago?∨
Central Chile's dry season (October-April) brings clear conditions. Winter nights are longer but occasionally cloudy. The Milky Way galactic centre is best positioned from March through September.

Stargazing guides

Is Tonight Good for Stargazing?

The answer depends on five things you can check right now.

Light Pollution & the Bortle Scale

How dark is your sky — and what difference does it make?

What Planets Are Visible Tonight?

Real visibility data for all 7 naked-eye and telescope planets, calculated for your location.

Meteor Shower Calendar 2026

Every shower this year — peak dates, expected rates, moon interference, and the two you absolutely cannot miss.
Check light pollution for this area ↗

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