Stargazing in Cotia tonight

Brazil · -23.60°, -46.92°

Stargazing verdict · tonight

Fair

Fair — stars visible, but not the best conditions.

›A bright full moon (100% lit) will wash out fainter stars.
›About 10 hours of true darkness to work with.

Your sky map — scrub through time

A live map of the sky above Cotia: the Moon, planets, bright stars and constellations, exactly where they are. Drag the sliders to move through the night — or forward and back by days — and watch everything shift.

The sky over Cotia

Thu 27 Aug, 22:00 · looking up — N at top, E to the left

Day

Time of night22:00

Drag the sliders to travel through time — watch the Moon, planets and constellations rise, set and shift. Positions are computed live for Cotia.

Tonight's sky in Cotia

🌕 Moon

Full Moon

100% lit

🌑 Darkness

19:10–05:06

10h of dark

🌇 Sun

sets 17:55

rises 06:22

🌙 Moon rise/set

up 17:35

down 06:31

Planets visible tonight

♀ Venus

Best evening · toward the W · 27° up

♂ Mars

Best early hours · toward the NE · 22° up

♄ Saturn

Best most of the night · toward the NE · 45° up

Best nights to stargaze — next two weeks

Ranked by how dark the sky will be (less Moon = better). Pair with a clear-sky forecast on the night.

Fri 28 Aug

28 Aug

100% moon

Sat 29 Aug

29 Aug

99% moon

Sun 30 Aug

30 Aug

96% moon

Mon 31 Aug

31 Aug

90% moon

Tue 1 Sept

1 Sept

83% moon

Wed 2 Sept

2 Sept

74% moon

Thu 3 Sept

3 Sept

64% moon

Fri 4 Sept

4 Sept

52% moon

Sat 5 Sept

5 Sept

41% moon

Sun 6 Sept

6 Sept

30% moon

Mon 7 Sept

7 Sept

20% moon

Tue 8 Sept

8 Sept

11% moon

Wed 9 Sept

9 Sept

5% moon

Thu 10 Sept

10 Sept

1% moon

Upcoming sky events from Cotia

28 August

Partial lunar eclipse

A partial lunar eclipse on 28 August, with part of the full Moon dimming and reddening as it enters Earth's shadow. Visible from the Americas, Europe, Africa and Asia depending on your local moonrise/moonset.

4 October

Saturn at opposition

Saturn reaches opposition on 4 October — directly opposite the Sun, so it rises at sunset, sets at sunrise and is at its biggest and brightest of the year. The best night to catch the rings through even a small telescope.

26 September · lesser-known

Neptune at opposition

The most distant planet reaches opposition on 26 September — its brightest for the year, though still faint. A rewarding challenge target: Neptune shows as a tiny blue-grey disc through a telescope. One for the keen.

14 December

Geminid meteor shower

Widely considered the best shower of the year: slow, bright, often colourful meteors at up to ~150 per hour under dark skies. In 2026 the Moon is only a young crescent at the 13–14 December peak, so conditions are excellent.

21 October · lesser-known

Orionid meteor shower

Fast, faint meteors — debris from Halley's Comet — peaking around 21 October at ~20 per hour. A quieter, connoisseur's shower; moonlight hampers the 2026 peak, so aim for the darkest hours.

Moon phase for Cotia →All sky events

Stargazing in Cotia — FAQ

Is tonight good for stargazing in Cotia?

Fair — stars visible, but not the best conditions. A bright full moon (100% lit) will wash out fainter stars. Check the live cloud forecast above, which updates through the day.

What planets are visible from Cotia tonight?

Tonight you can spot Venus, Mars, Saturn above the horizon from Cotia, conditions permitting.

When is the best night to stargaze in Cotia soon?

The darkest upcoming night is around Thu 10 Sept, when the Moon is only 1% lit.

Times are local to Cotia (America/Sao_Paulo). Astronomical data is computed from established models; the cloud forecast is live from Open-Meteo and refreshes through the day. Always confirm with a live forecast before travelling to a dark-sky site.