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 Guarulhos, São Paulo, Brazil?

Tonight from Guarulhos, São Paulo, Brazil expect a waxing crescent Moon at 6% 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 Guarulhos, São Paulo, Brazil?

Tonight in Guarulhos, 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 Guarulhos, São Paulo, Brazil?

Astronomical darkness begins at 7:26 PM local time in Guarulhos, 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 Guarulhos, São Paulo, Brazil?

Guarulhos, 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 Guarulhos, São Paulo, Brazil?

Guarulhos, São Paulo, Brazil is a large metropolitan area — typically Bortle class 7–9 (bright, inner-city sky), where only the Moon, planets, and the brightest stars are visible. 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 Guarulhos, São Paulo, Brazil's elevation help stargazing?

At 774 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 142 km from Guarulhos, São Paulo, Brazil at 1864 m.

What should I plan for observing near Guarulhos, 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 84.5° here. Cold and thinner air are the practical constraints, not the sky.

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

Waxing Crescent moon at 6%, Saturn shines at magnitude 0.2. Calculated for -23.46°, -46.53° (America/Sao_Paulo).

Moon

Waxing Crescent

6% lit

Sunset

6:09 PM

Dusk 7:26 PM

Dark hours

8.8 h

Dawn 4:17 AM

Aurora

Needs Kp 9+

Belt 58°

Visible planets tonight

Saturn, Mars, Jupiter, Mercury — brightest: Saturn at mag 0.2 in Cetus

🔭 Tonight's Sky Report

📍 Guarulhos, São Paulo, Brazil — Tuesday, October 13

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.

⭐ StargazingPoor

🌙 MoonWaxing Crescent • 6% Illumination

🪐 Visible planetsMercury, Mars, Jupiter, Saturn

🌠 Meteor activityOrionids in 8 days

🌌 Milky WayVisible after dark, low moonlight

🛰️ ISSISS pass predictions unavailable

🌈 AuroraUnlikely — Quiet (Kp 1.3)

☁️ Cloud cover100%

🌡️ Temperature63°F

Weather observed: 1:00 AM UTC · Space weather observed: 9:00 PM UTC

Tonight's sky above Guarulhos, São Paulo, Brazil

Skywatchers in Guarulhos, São Paulo, Brazil have the same live tools professional observers use — a real ephemeris, live Kp readings from NOAA SWPC, and hourly cloud forecasts — condensed into one report on this page.

Local sky character in Guarulhos

Tropical / equatorial latitudes · southern hemisphere · 774 m elevation

The south celestial pole stands 23.5° above the horizon, so stars within 24° of it never set from here.
About 69.9% 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 84.5° up, passing almost directly overhead.
The Large and Small Magellanic Clouds are circumpolar here — visible on any clear, dark night of the year.
At 774 m elevation, roughly 9% of the atmosphere's mass is already below you, which measurably reduces extinction near the horizon.

Pole altitude

23.5°

Sky reachable

69.9%

Milky Way core

84.5° max

Aurora australis

Kp 9+

With a population above one million, Guarulhos produces significant sky glow: expect the Moon, planets and bright stars from the centre, and travel outward for the Milky Way.

PoorSky 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 1.3, quiet) is not strong enough to bring the aurora to your latitude.
Weather: No significant rain, wind or temperature extremes are expected overnight.

Tonight is not a strong night for stargazing -- check back tomorrow.

What is a geomagnetic storm?How do auroras form?

Astronomy near Guarulhos

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

Pico dos Dias Observatory — observatory, 142 km away, 1864 m

Best nights this month in Guarulhos

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 Guarulhos, São Paulo, Brazil.

Guarulhos, São Paulo, Brazil stargazing questions

What can I see in the sky tonight from Guarulhos, São Paulo, Brazil?: Tonight from Guarulhos, São Paulo, Brazil expect a waxing crescent Moon at 6% 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 Guarulhos, São Paulo, Brazil?: Tonight in Guarulhos, 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 Guarulhos, São Paulo, Brazil?: Astronomical darkness begins at 7:26 PM local time in Guarulhos, 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 Guarulhos, São Paulo, Brazil?: Guarulhos, 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 Guarulhos, São Paulo, Brazil?: Guarulhos, São Paulo, Brazil is a large metropolitan area — typically Bortle class 7–9 (bright, inner-city sky), where only the Moon, planets, and the brightest stars are visible. 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 Guarulhos, São Paulo, Brazil's elevation help stargazing?: At 774 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 142 km from Guarulhos, São Paulo, Brazil at 1864 m.
What should I plan for observing near Guarulhos, 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 84.5° here. Cold and thinner air are the practical constraints, not the sky.
How dark does it actually get in Guarulhos, 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 Guarulhos, 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 8 days

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

Full viewing guide →

Related astronomy for Guarulhos, São Paulo, Brazil

Frequently Asked Questions

Is this just astronomy weather for Guarulhos?

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 Guarulhos, São Paulo, Brazil.

What are tonight's astronomy viewing conditions for Guarulhos?

The sky viewing conditions badge above reflects the real astronomy viewing conditions for Guarulhos, 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.