Stargazing in Tokyo, Japan
Location reference: Tokyo, Tokyo
Japan · Asia/Tokyo · 35.6895, 139.6917
Use this city or town reference for local sky planning. Check access, light pollution and the horizon at your chosen observing site. Location source.
Stay in tonight
SkipStay in tonight. Cloud cover averages 98% over the dark window, with about 8.6 hours of moonless darkness.
Tonight's reasoning
Every point accounted for- negativeHeavy cloud: 98% average cover. Plan on gaps rather than a clear sky.
- positiveA long 10.8-hour night of astronomical darkness.
- positiveThe Moon is 24% lit and above the horizon for 2 h 8 min, leaving 8 h 37 min moonless.
Cloud samples through the observing night
OvercastForecast samples are 60 minutes apart at the coarsest point shown. Missing values are not clear skies. Coarse or incomplete data does not produce a detailed observing recommendation.
Read the forecast samples as a table
| Local time | Cloud | Temperature | Wind |
|---|---|---|---|
| Sat 20:00 JST | 99% | 14°C | 5 km/h |
| Sat 21:00 JST | 98% | 13°C | 3 km/h |
| Sat 22:00 JST | 98% | 13°C | 3 km/h |
| Sat 23:00 JST | 100% | 12°C | 5 km/h |
| Sun 00:00 JST | 90% | 12°C | 6 km/h |
| Sun 01:00 JST | 99% | 12°C | 6 km/h |
| Sun 02:00 JST | 97% | 11°C | 6 km/h |
| Sun 03:00 JST | 100% | 11°C | 6 km/h |
| Sun 04:00 JST | 99% | 11°C | 8 km/h |
Planets from dusk to dawn
Sun at least 6° below the horizonThese are geometric opportunities in evening, night or morning twilight, subject to weather. We require an altitude of at least 10°. Terrain and buildings can block the view.
Stars to find by eye
No telescope requiredA golden star in the constellation Auriga. Use the listed direction and altitude for this location.
The orange shoulder of Orion. Look below it for three stars in a short, straight line.
Find the two stars at the end of the Big Dipper bowl; follow that line north. Polaris sits almost still while the sky turns.
The tail of Cygnus the Swan and the faintest corner of the Summer Triangle.
The next 7 nights
Full month →Moon and darkness use local astronomical calculations. Weather becomes less reliable further out. Scores are withheld for old, incomplete or coarse forecasts.
Do not drive out on a hunch
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About this forecast
Astronomy is calculated for Tokyo at 35.6895° N, 139.6917° E. Weather comes from MET Norway. A city forecast cannot resolve every mountain, fog bank or nearby floodlight. Calculated times use a modelled horizon and are approximate.
Provider issue time: Sat, Nov 14 · 18:20. Sources and forecast limitations.
Location: Location source record. Reference checked 2026-10-22.
Astronomy model 2026.10.3 · Scoring methodology · Privacy