Tuxtla
Chiapas, 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
Excellent
Photography-specific metric factoring cloud quality and golden hour potential for landscape shooters.
Light Windows Today
4 AM12 PM11 PM
Sunrise
6:35 AM
Golden: 43min
Sunset
6:17 PM
Golden: 43min
True Darkness
7:29 PM
Stars visible
Add to Calendar
Get reminders for golden hour and dark sky windows
Morning Golden Hour
6:21 AM - 7:04 AM
Evening Golden Hour
5:47 PM - 6:30 PM
Dark Sky Window
7:29 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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No sign-up needed
Moon Phase
14%
Phase
Waxing Gibbous
Illumination
14%
💡 Slight Moon Interference
Moon may affect darkest sky observations
Light Pollution
7
Class 1
DarkClass 5
SuburbanClass 9
City
DarkClass 5
SuburbanClass 9
City
Tuxtla Classification
Moderate for Astronomy
Bortle Class 7: Suburban/Urban Transition
Suburban/urban transition
Visible Tonight
Entire sky grayish, strong light sources visible, M31 difficult
💡 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
7%
Ideal scattered clouds for vibrant sunset colors
Morning
11%
Evening
22%
Overnight
1%
Precipitation
0%
Very unlikely
Wind
18
km/h avg
Gusts up to 37 km/h
🟡 Breezy - May affect tracking
Humidity
51%
Moderate
Visibility
24.1
km
Excellent clarity
Temperature
33°C
High
/
17°C
Low
Seeing
4
/ 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
Nearby Dark Sky Locations
Within 100km
Jacaltenango
Bortle
7
3
Dramatic improvement
192.4km·~2h 24min
Soloma
Bortle
7
3
Dramatic improvement
217.2km·~2h 43min
Comitancillo
Bortle
7
3
Dramatic improvement
235.2km·~2h 56min
💡 These locations have significantly darker skies (7 → 3). Expect 16x more visible stars.
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