Tokyo, Japan Clear Sky Chart

Tokyo, Japan (35.68°, 139.69°) · Updated 23:33 JST
72
Good
low confidence ⓘ
low · Forecast stability

Tonight's forecast keeps changing between updates — the score is less certain; check again nearer dusk. We compare how much tonight's score has moved across our recent forecast updates, a score that's held steady is more trustworthy.

Confidence reflects how trustworthy the forecast is, it doesn't change the score.

Worth a look tonight
BEST 18:00–23:00 (5h)
Near-perfect skies but bright moonlight limits faint objects. Mars, Jupiter, Saturn well placed tonight.
Sunset
16:50
Sunrise
05:59
Usable Hours
11/11
Moon
92%
Visible Planets
♂ Mars57° SE
♃ Jupiter51° SE
♄ Saturn56° S
⛢ Uranus75° S
♆ Neptune54° S
Sky darkness
City sky (Bortle 8-9)
SQM 17.4, estimated from satellite night lights. A property of the place, separate from tonight’s score. How we estimate this
Open Full Tokyo, Japan Forecast →
Hour-by-hour scores · Planet rise/set & visibility · ISS & satellite passes · Moon detail · Full score breakdown · Aurora & observer profiles

Stargazing in Tokyo, Japan

Tokyo's vast metropolitan area creates Bortle 9 conditions across the Kanto Plain, but the Moon, planets, and bright targets remain visible. The mountains of Chichibu (90 minutes west) offer Bortle 4 skies, and Mount Fuji's fifth station provides high-altitude access. Japan's tsuyu (rainy season, June–July) is the worst period; autumn brings the clearest conditions with stable Pacific high pressure. Winter nights are cold but often crystal clear, with excellent seeing.

Tokyo, Japan Stargazing FAQ

Can you see stars in Tokyo?∨
Tokyo's Bortle 9 conditions make deep-sky viewing impossible from the city, but planets, the Moon, and the very brightest stars remain visible on clear nights. The National Astronomical Observatory in Mitaka hosts public events.
Where is the best dark sky near Tokyo?∨
The mountains of Chichibu, about 90 minutes west by train, offer Bortle 4 skies. Mount Fuji's fifth station provides high-altitude access. The Izu Peninsula and Nagano Prefecture are popular dark-sky destinations.
When is the best time to stargaze near Tokyo?∨
Autumn (October-November) brings the clearest conditions with stable Pacific high pressure. Winter nights are cold but often crystal clear with excellent seeing. Avoid the rainy season (tsuyu) in June-July.

Stargazing guides

Is Tonight Good for Stargazing?

The answer depends on five things you can check right now.

Light Pollution & the Bortle Scale

How dark is your sky: and what difference does it make?

What Planets Are Visible Tonight?

Real visibility data for all 7 naked-eye and telescope planets, calculated for your location.

Meteor Shower Calendar 2026

Every shower this year: peak dates, expected rates, moon interference, and the two you absolutely cannot miss.

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