Santiago, Chile Clear Sky Chart

Santiago, Chile (-33.45°, -70.67°) · Updated 08:42 -03
100
Excellent
high confidence ⓘ
high · Forecast lead time

Based on how far ahead tonight is, forecasts are most reliable within 24–48 hours.

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

Go out tonight
BEST 20:00–06:20 (10h 21m)
Near-perfect skies with very low moonlight. Venus, Saturn, Uranus well placed tonight.
Sunset
19:33
Sunrise
07:43
Usable Hours
11/11
Moon
8%
Visible Planets
☿ Mercury13° W
♀ Venus40° W
♂ Mars16° NE
♄ Saturn54° N
⛢ Uranus35° N
♆ Neptune57° N
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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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