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São Bernardo do Campo

São Paulo, Brazil
Today
Feb 21, 2026
Poor

Netflix & Chill Night (Too Cloudy)

A 14% illuminated waxing gibbous drowns out all but the very brightest objects.

Tonight's Forecast
0
/ 100
First Light Index
Poor
Our proprietary metric combining sky clarity, moon interference, and light pollution for optimal stargazing conditions.
0
/ 100
Shutter Score
Fair
Photography-specific metric factoring cloud quality and golden hour potential for landscape shooters.

Light Windows Today

Blue HourGolden HourGolden HourBlue Hour
4 AM12 PM11 PM
Sunrise
5:57 AM
Golden: 45min
Sunset
6:41 PM
Golden: 44min
True Darkness
7:59 PM
Stars visible

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Morning Golden Hour
5:43 AM - 6:27 AM
Evening Golden Hour
6:11 PM - 6:55 PM
Dark Sky Window
7:59 PM onwards
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  1. 1. Download the .ics file above
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  4. 4. You'll get 30-minute reminders before each window
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Moon Phase

14%
Phase
Waxing Gibbous
Illumination
14%
💡 Slight Moon Interference
Moon may affect darkest sky observations

Light Pollution

9
Class 1
DarkClass 5
SuburbanClass 9
City
São Bernardo do Campo 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
75%
Heavy clouds - limited visibility and light
Morning
100%
Evening
58%
Overnight
81%
Precipitation
10%
Very unlikely
Wind
14
km/h avg
Gusts up to 31 km/h
🟡 Breezy - May affect tracking
Humidity
77%
High - May cause haze
Visibility
12.9
km
Excellent clarity
Temperature
25°C
High
/
16°C
Low
Seeing
4
/ 5
Excellent - Atmospheric stability
Transparency
1
/ 5
Hazy - Air clarity
Conditions Summary
🌫️ Hazy conditions - Bright objects only, consider light pollution filters

Nearby Dark Sky Locations

Within 100km

Água Rasa

Bortle
9
3
Dramatic improvement
388.8km·~4h 52min

Papanduva

Bortle
9
3
Dramatic improvement
467.3km·~5h 50min
💡 These locations have significantly darker skies (9 → 3). Expect 64x more visible stars.

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