Guadalupe
Nuevo León, Mexico
Today
Feb 21, 2026
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
Poor
Photography-specific metric factoring cloud quality and golden hour potential for landscape shooters.
Light Windows Today
4 AM12 PM11 PM
Sunrise
7:11 AM
Golden: 45min
Sunset
6:38 PM
Golden: 45min
True Darkness
7:55 PM
Stars visible
Add to Calendar
Get reminders for golden hour and dark sky windows
Morning Golden Hour
6:56 AM - 7:42 AM
Evening Golden Hour
6:07 PM - 6:52 PM
Dark Sky Window
7:55 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
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Moon Phase
14%
Phase
Waxing Gibbous
Illumination
14%
💡 Slight Moon Interference
Moon may affect darkest sky observations
Light Pollution
8
Class 1
DarkClass 5
SuburbanClass 9
City
DarkClass 5
SuburbanClass 9
City
Guadalupe Classification
Poor for Astronomy
Bortle Class 8: City Sky
City sky
Visible Tonight
Sky glows whitish gray, only brightest stars visible, M44 invisible
💡 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
71%
Heavy clouds - limited visibility and light
Morning
85%
Evening
100%
Overnight
0%
Precipitation
23%
Possible
Wind
21
km/h avg
Gusts up to 32 km/h
🔴 Windy - Challenging conditions
Humidity
50%
Moderate
Visibility
27.7
km
Excellent clarity
Temperature
26°C
High
/
20°C
Low
Seeing
5
/ 5
Excellent - Atmospheric stability
Transparency
4
/ 5
Very Clear - Air clarity
Conditions Summary
⭐ Premium conditions - Excellent for high-magnification planetary work and deep sky imaging
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