Houston
Texas, United States
Today
Feb 25, 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
Good
Photography-specific metric factoring cloud quality and golden hour potential for landscape shooters.
Light Windows Today
4 AM12 PM11 PM
Sunrise
6:51 AM
Golden: 47min
Sunset
6:17 PM
Golden: 47min
True Darkness
7:37 PM
Stars visible
Add to Calendar
Get reminders for golden hour and dark sky windows
Morning Golden Hour
6:36 AM - 7:23 AM
Evening Golden Hour
5:45 PM - 6:32 PM
Dark Sky Window
7:37 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
All calendar apps
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Moon Phase
56%
Phase
First Quarter
Illumination
56%
⚠️ High Moon Interference
Bright moonlight will wash out faint deep sky objects
Light Pollution
9
Class 1
DarkClass 5
SuburbanClass 9
City
DarkClass 5
SuburbanClass 9
City
Houston 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
66%
Heavy clouds - limited visibility and light
Morning
35%
Evening
100%
Overnight
8%
Precipitation
2%
Very unlikely
Wind
31
km/h avg
Gusts up to 49 km/h
🔴 Windy - Challenging conditions
Humidity
69%
Moderate
Visibility
24.1
km
Excellent clarity
Temperature
25°C
High
/
17°C
Low
Seeing
3
/ 5
Good - Atmospheric stability
Transparency
2
/ 5
Moderate - Air clarity
Conditions Summary
🌫️ Hazy conditions - Bright objects only, consider light pollution filters
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