What planets are visible tonight?

Which planets are visible depends on your date and location. Venus, Jupiter, Mars, and Saturn are the four naked-eye planets that are frequently visible; Mercury is visible only in brief windows near sunrise or sunset. Enter your city above and the report will list the planets currently above the horizon after dark.

Can I see the Northern Lights tonight?

Aurora visibility depends on the Kp index and your geomagnetic latitude. At Kp 3, aurora is typically visible only near the Arctic and Antarctic circles. At Kp 5 (a G1 storm), the auroral oval expands south into the northern U.S. and northern Europe. At Kp 7+ it can reach mid-latitudes. The report above compares your latitude to the current auroral boundary in real time.

Is there a meteor shower tonight?

There are around a dozen major meteor showers each year. The report above shows the next active shower and how many days until its peak. For best viewing, look after midnight from a dark location with the shower's radiant above the horizon.

When will the ISS pass over tonight?

The International Space Station passes overhead multiple times per day, but only some passes are visible (bright, after dusk or before dawn, and above the horizon). The report above shows the next visible pass time for your location, computed from live NORAD orbital elements.

What can I see in the sky tonight from Arcadas, São Paulo, Brazil?

Tonight from Arcadas, São Paulo, Brazil expect a waxing crescent Moon at 26% illumination, with these naked-eye planets above the horizon after dark: Saturn, Mars, Jupiter, Mercury. The night offers about 8.8 hours of true astronomical darkness.

What planets are visible tonight in Arcadas, São Paulo, Brazil?

Tonight in Arcadas, São Paulo, Brazil, Saturn, Mars, Jupiter, Mercury are visible to the naked eye after dark, based on this location's real ephemeris for tonight.

When does darkness start tonight in Arcadas, São Paulo, Brazil?

Astronomical darkness begins at 7:28 PM local time in Arcadas, São Paulo, Brazil tonight, the moment the Sun drops more than 18° below the horizon and the sky becomes fully dark for faint-object observing.

Can you see the aurora tonight in Arcadas, São Paulo, Brazil?

Arcadas, São Paulo, Brazil is far enough from the pole that aurora only reaches overhead during a major geomagnetic storm — specifically when the planetary Kp index reaches about 9, a level reached only a handful of times per solar cycle.

What is the stargazing light pollution level in Arcadas, São Paulo, Brazil?

Arcadas, São Paulo, Brazil is a small town — typically Bortle class 1–4 (rural to excellent dark sky), where the Milky Way is usually visible on clear, moonless nights away from local lighting. These are typical ranges for this population size, not a measured reading for this exact spot — use tonight's Moon phase and the best-nights list above to time a visit away from direct lighting.

Does Arcadas, São Paulo, Brazil's elevation help stargazing?

At 675 m you are above a meaningful fraction of the atmosphere, which reduces extinction and scintillation — the reason major observatories are sited high. Pico dos Dias Observatory sits about 131 km from Arcadas, São Paulo, Brazil at 1864 m.

What should I plan for observing near Arcadas, São Paulo, Brazil?

High sites reward targets that suffer most from atmosphere: planets at high altitude, faint nebulae, and the Milky Way, which culminates around 83.7° here. Cold and thinner air are the practical constraints, not the sky.

How dark does it actually get in Arcadas, São Paulo, Brazil tonight?

About 8.8 hours of astronomical darkness (Sun more than 18° below the horizon). That is the real observing window for faint objects; brighter targets are workable from dusk onward.

Live Sky Report

What Can I See in the Sky Tonight in Arcadas, São Paulo, Brazil?

Waxing Crescent moon at 26%, Saturn shines at magnitude 0.3. Calculated for -22.72°, -46.85° (America/Sao_Paulo).

Moon

Waxing Crescent

26% lit

Sunset

6:11 PM

Dusk 7:28 PM

Dark hours

8.8 h

Dawn 4:16 AM

Aurora

Needs Kp 9+

Belt 58°

Visible planets tonight

Saturn, Mars, Jupiter, Mercury — brightest: Saturn at mag 0.3 in Cetus

🔭 Tonight's Sky Report

📍 Arcadas, São Paulo, Brazil — Friday, October 16

Live cloud cover, temperature, ISS passes and aurora odds load in your browser and need JavaScript. The moon, planet and meteor rows below are calculated without it.

⭐ StargazingFair

🌙 MoonWaxing Crescent • 26% Illumination

🪐 Visible planetsMercury, Mars, Jupiter, Saturn

🌠 Meteor activityOrionids in 5 days

🌌 Milky WayVisible after dark, low moonlight

🛰️ ISSNo visible ISS pass in the next 5 predicted passes

🌈 AuroraUnlikely — Quiet (Kp 2.3)

☁️ Cloud cover44%

🌡️ Temperature77°F

Space weather observed: 9:00 PM UTC

Tonight's sky above Arcadas, São Paulo, Brazil

Whether tonight is a good night for stargazing from Arcadas, São Paulo, Brazil comes down to four real things: the Moon phase, cloud cover, which planets are up, and the current Kp index.

Local sky character in Arcadas

Tropical / equatorial latitudes · southern hemisphere · 675 m elevation

The south celestial pole stands 22.7° above the horizon, so stars within 23° of it never set from here.
About 69.3% of the whole sky rises above the horizon at some point in the year from this latitude.
The Milky Way's core in Sagittarius culminates about 83.7° up, passing almost directly overhead.
The Large and Small Magellanic Clouds are circumpolar here — visible on any clear, dark night of the year.
At 675 m elevation, roughly 8% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.

Pole altitude

22.7°

Sky reachable

69.3%

Milky Way core

83.7° max

Aurora australis

Kp 9+

Arcadas is small enough that local light domes are limited — on a clear, moonless night the Milky Way is realistically within reach.

FairSky Viewing Conditions tonight

What does this mean for you?

Your Sky Briefing

Right now: The sky is currently too bright for stargazing or aurora viewing.
Tonight: Cloud cover is the main factor limiting visibility tonight.
Aurora: Current geomagnetic activity (Kp 2.3, quiet) is not strong enough to bring the aurora to your latitude.
Weather: No significant rain, wind or temperature extremes are expected overnight.

Conditions tonight are mixed -- check the details below.

What is a geomagnetic storm?How do auroras form?

Astronomy near Arcadas

Real great-circle distances from Arcadas, São Paulo, Brazil.

Pico dos Dias Observatory — observatory, 131 km away, 1864 m

Best nights this month in Arcadas

Calculated for these coordinates and today's date — not a fixed list.

2026-10-21 — Orionids peak — up to 20/hour
Radiant in Orion. Visible from both hemispheres. The Moon is 72% lit on peak night, so lunar interference is moderate.
2026-10-26 — Full Moon
A 100%-lit Moon washes out faint objects, but lunar terrain along the limb is at its most striking — plan bright targets and planets instead of deep sky.
2026-11-09 — Darkest night of the coming month
The Moon is only 0% illuminated, giving the least lunar interference in the next 30 nights — the best window for the Milky Way and faint deep-sky targets from Arcadas, São Paulo, Brazil.

Arcadas, São Paulo, Brazil stargazing questions

What can I see in the sky tonight from Arcadas, São Paulo, Brazil?: Tonight from Arcadas, São Paulo, Brazil expect a waxing crescent Moon at 26% illumination, with these naked-eye planets above the horizon after dark: Saturn, Mars, Jupiter, Mercury. The night offers about 8.8 hours of true astronomical darkness.
What planets are visible tonight in Arcadas, São Paulo, Brazil?: Tonight in Arcadas, São Paulo, Brazil, Saturn, Mars, Jupiter, Mercury are visible to the naked eye after dark, based on this location's real ephemeris for tonight.
When does darkness start tonight in Arcadas, São Paulo, Brazil?: Astronomical darkness begins at 7:28 PM local time in Arcadas, São Paulo, Brazil tonight, the moment the Sun drops more than 18° below the horizon and the sky becomes fully dark for faint-object observing.
Can you see the aurora tonight in Arcadas, São Paulo, Brazil?: Arcadas, São Paulo, Brazil is far enough from the pole that aurora only reaches overhead during a major geomagnetic storm — specifically when the planetary Kp index reaches about 9, a level reached only a handful of times per solar cycle.
What is the stargazing light pollution level in Arcadas, São Paulo, Brazil?: Arcadas, São Paulo, Brazil is a small town — typically Bortle class 1–4 (rural to excellent dark sky), where the Milky Way is usually visible on clear, moonless nights away from local lighting. These are typical ranges for this population size, not a measured reading for this exact spot — use tonight's Moon phase and the best-nights list above to time a visit away from direct lighting.
Does Arcadas, São Paulo, Brazil's elevation help stargazing?: At 675 m you are above a meaningful fraction of the atmosphere, which reduces extinction and scintillation — the reason major observatories are sited high. Pico dos Dias Observatory sits about 131 km from Arcadas, São Paulo, Brazil at 1864 m.
What should I plan for observing near Arcadas, São Paulo, Brazil?: High sites reward targets that suffer most from atmosphere: planets at high altitude, faint nebulae, and the Milky Way, which culminates around 83.7° here. Cold and thinner air are the practical constraints, not the sky.
How dark does it actually get in Arcadas, São Paulo, Brazil tonight?: About 8.8 hours of astronomical darkness (Sun more than 18° below the horizon). That is the real observing window for faint objects; brighter targets are workable from dusk onward.

Nearby cities

Real great-circle distance from Arcadas, São Paulo, Brazil.

More in São Paulo

Other sky reports in the same region.

Sky tonight across Brazil

Other cities in Brazil with live sky reports.

Popular astronomy destinations

Aurora hubs, dark-sky sites, and observatory towns.

🛰️ ISS Visibility

No visible ISS passes currently predicted for this location.

☄️ Orionids peaks in 5 days

Up to 20 meteors/hour at peak, radiating from Orion.

Full viewing guide →

Related astronomy for Arcadas, São Paulo, Brazil

Frequently Asked Questions

Is this just astronomy weather for Arcadas?

This page goes beyond ordinary astronomy weather -- it combines real local weather for astronomy, live space weather, and the space weather aurora connection into one live report for Arcadas, São Paulo, Brazil.

What are tonight's astronomy viewing conditions for Arcadas?

The sky viewing conditions badge above reflects the real astronomy viewing conditions for Arcadas, São Paulo, Brazil right now -- cloud cover, darkness, and moon interference combined, not moon phase alone. Good weather for stargazing depends on all of these together.