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Tonight's Sky from Sao Paulo, Brazil

23.55°S, 46.64°W · America/Sao_Paulo · Tue, Sep 15 · 18:46 UTC

☀️ Daytime — but ISS passes tonight

Set a reminder for the ISS pass. 🌇 Sunset in about 2 hours.

⏳Wait for sunset — nothing visible in daylight.

Sao Paulo, Brazil · 2 planets in the sky (daylight — none visible)

Best thing to see tonight

ISS

High pass — fairly easy to follow (59° pass at 15:37 UTC). Moves from south-southwest across the sky, passes fairly high in the sky, and exits northeast

High
Where to look
Look south-southwest
When
6 min pass (15:37 UTC)
Visibility score
70/100
2 planets in the sky, but none visible to the naked eye
  • Mercury — Daylight is too bright — planets are washed out by the sun.
  • Venus — Daylight is too bright — planets are washed out by the sun.
5 planets below the horizon — Mars, Jupiter, Saturn, Uranus, Neptune
  • Mars — Below horizon
  • Jupiter — Below horizon
  • Saturn — Below horizon
  • Uranus — Below horizon
  • Neptune — Below horizon

Observing conditions

Cloud cover
52%
Mostly cloudy
Moon
Waxing Crescent
22% lit — Moon visible, but no impact in daylight
Light pollution
Inner city
Bortle 9 — measured

Light pollution

Bortle scale · catalogued
9/9
Inner city
1 · Pristine5 · Suburban9 · Inner city

Inner-city sky. Only Moon, planets, and the very brightest stars. No stellar limiting magnitude worth reporting.

Naked-eye limit
mag 4.0

Next eclipse

Solar · total
321
days away

A total solar eclipse on Monday, 2 August 2027.

Visible: Spain, North Africa, Middle East, India. Confirm viewability from Sao Paulo on the detail page.

Duration
6m 24s
Magnitude
1.08

What this means

It is still daylight — check back after sunset.

Heavy cloud cover will block most of the sky tonight.

Moonlight is light and should not disturb most viewing.

Sun

Above horizon
Altitude
29.4°
Sun is up
Azimuth
288° WNW
Next sunrise
Wed, Sep 16 · 09:02 UTC
Next sunset
Tue, Sep 15 · 21:00 UTC

Moon

Visible
Phase
Waxing Crescent
22% illuminated
Altitude
85.4°
Azimuth
284° WNW
Next moonrise
Wed, Sep 16 · 12:15 UTC

ISS passes (next 48 h)

5 passes
  • Wed, Sep 16 · 05:48 UTC
    peak 17°
    in 11 hoursrises NNE → sets E4m 34s
  • Wed, Sep 16 · 07:25 UTC
    peak 23°
    in 13 hoursrises W → sets S5m 32s
  • Wed, Sep 16 · 15:37 UTC
    peak 59°
    in 21 hoursrises SSW → sets NE6m 44s
  • Thu, Sep 17 · 06:36 UTC
    peak 45°
    tomorrowrises WNW → sets SSE6m 31s
  • Thu, Sep 17 · 14:50 UTC
    peak 28°
    in 2 daysrises SSW → sets ENE6m 1s
Advanced — raw altitude, azimuth, magnitude for all planets

Planets

0 currently observable
  • Mercurymag -0.4
    44.7°Not visible
  • Venusmag -4.8
    69.9°Not visible
  • Mars
    Below horizon
  • Jupiter
    Below horizon
  • Saturn
    Below horizon
  • Uranus
    Below horizon
  • Neptune
    Below horizon
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