Is tonight good for stargazing in Osasco?

Netflix & Chill Night (Too Cloudy). 100% cloud cover — nothing to see tonight. Good time to plan next week. The First Light Index is 1/100, with 89% cloud cover and moon illumination at 80%.

What is the light pollution level in Osasco?

Osasco has a Bortle 9 rating. This is a bright sky area where only the brightest stars and planets are visible. Consider traveling to a darker location for deep sky observation.

When is golden hour in Osasco today?

Morning golden hour is from 5:51 AM to 6:35 AM. Evening golden hour is from 5:59 PM to 6:43 PM. The Shutter Score for photography is 0/100.

Home/Calculators/Brazil on Aletheia

Osasco

São Paulo, Brazil

Today

Mar 8, 2026

Poor

Netflix & Chill Night (Too Cloudy)

100% cloud cover — nothing to see tonight. Good time to plan next week.

Tonight's Forecast

/ 100

First Light Index

Poor

Our proprietary metric combining sky clarity, moon interference, and light pollution for optimal stargazing conditions.

/ 100

Shutter Score

Poor

Photography-specific metric factoring cloud quality and golden hour potential for landscape shooters.

Light Windows Today

4 AM12 PM11 PM

Sunrise

6:05 AM

Golden: 44min

Sunset

6:29 PM

Golden: 44min

True Darkness

7:45 PM

Stars visible

Add to Calendar

Get reminders for golden hour and dark sky windows

Morning Golden Hour

5:51 AM - 6:35 AM

Evening Golden Hour

5:59 PM - 6:43 PM

Dark Sky Window

7:45 PM onwards

📱 How to use:

1. Download the .ics file above
2. Open it with your calendar app (iPhone Calendar, Google Calendar, Outlook)
3. Events will be added automatically
4. You'll get 30-minute reminders before each window

30-min reminders

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Moon Phase

80%

Phase

Waxing Crescent

Illumination

80%

Light Pollution

Class 1
DarkClass 5
SuburbanClass 9
City

Osasco Classification

Poor for Astronomy

Bortle Class 9: Inner City Sky

Inner city sky

Visible Tonight

Entire sky brightly lit, only Moon, planets, and brightest stars visible

💡 Urban Sky Recommendation

Focus on lunar and planetary observation. Consider driving to a darker location for deep sky work.

💡 Tip: Check "Nearby Dark Sky" section below to find better observing sites within driving distance

Weather Conditions

Cloud Cover

89%

Overcast - poor conditions for photography

Morning

90%

Evening

100%

Overnight

78%

Precipitation

58%

Likely

Wind

km/h avg

Gusts up to 30 km/h

🟡 Breezy - May affect tracking

Humidity

80%

High - May cause haze

Visibility

22.4

Excellent clarity

Temperature

29°C

High

20°C

Low

Seeing

/ 5

Fair - Atmospheric stability

Transparency

/ 5

Hazy - Air clarity

Conditions Summary

🌪️ Poor seeing - Stick to wide-field imaging or wait for better atmospheric stability

Nearby Dark Sky Locations

Within 100km

Água Rasa

Bortle

Dramatic improvement

382km·~4h 47min

Papanduva

Bortle

Dramatic improvement

462km·~5h 47min

💡 These locations have significantly darker skies (9 → 3). Expect 64x more visible stars.

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