Is tonight good for stargazing in Setagaya?

Textured Sky — Get Your Camera. Enough cloud texture for interesting skies. Morning: 87% cloud, Evening: 34% cloud. The First Light Index is 16/100, with 47% cloud cover and moon illumination at 14%.

What is the light pollution level in Setagaya?

Setagaya 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 Setagaya today?

Morning golden hour is from 6:04 AM to 6:55 AM. Evening golden hour is from 4:53 PM to 5:44 PM. The Shutter Score for photography is 74/100.

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Setagaya

Tokyo, Japan

Today

Feb 21, 2026

Poor

Textured Sky — Get Your Camera

Enough cloud texture for interesting skies. Morning: 87% cloud, Evening: 34% cloud.

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

Good

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

Light Windows Today

4 AM12 PM11 PM

Sunrise

6:20 AM

Golden: 51min

Sunset

5:28 PM

Golden: 51min

True Darkness

6:53 PM

Stars visible

Add to Calendar

Get reminders for golden hour and dark sky windows

Morning Golden Hour

6:04 AM - 6:55 AM

Evening Golden Hour

4:53 PM - 5:44 PM

Dark Sky Window

6:53 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

14%

Phase

Waxing Gibbous

Illumination

14%

💡 Slight Moon Interference

Moon may affect darkest sky observations

Light Pollution

Class 1
DarkClass 5
SuburbanClass 9
City

Setagaya 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

47%

Moderate cloud cover - potential for dramatic skies

Morning

87%

Evening

34%

Overnight

99%

Precipitation

Very unlikely

Wind

km/h avg

Gusts up to 41 km/h

🟡 Breezy - May affect tracking

Humidity

54%

Moderate

Visibility

24.1

Excellent clarity

Temperature

14°C

High

5°C

Low

Seeing

/ 5

Excellent - Atmospheric stability

Transparency

/ 5

Moderate - Air clarity

Conditions Summary

🌫️ Hazy conditions - Bright objects only, consider light pollution filters

Nearby Dark Sky Locations

Within 100km

Aizu-misato Machi

Bortle

Dramatic improvement

196.6km·~2h 27min

Kumano

Bortle

Dramatic improvement

375.9km·~4h 42min

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

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