Tokyo via Takeshiba or Chofu · Altitude not shown until sourced

Miura Bay Observatory

A southern-horizon viewpoint on Kozushima, promoted for seasonal southern-sky observing.

Promising skies. Check access first.

Forecast availableSky conditions onlyAccess documented and arrival mapped

Sunset 18:54Astronomical dark 20:34Sunrise 04:45

86Excellent

Excellent↗

Moon for the selected night

Waxing crescent

33% · Below horizon

33%

Excellent

Cloud

20%

Wind 13.4 km/h

Excellent

Rain chance

Visibility 28 km

Poor

Humidity

84% · 26°C

Visibility 28 km

Hourly sky conditions

Sun, Jul 19

Open directionsGoogle Maps

Checks before departure

About 15 minutes by car from the village; verify dark-road and transport conditions.

Transport not verifiedRoad status not verifiedOfficial warning not verified

Time basis: Asia/Tokyo
Forecast and viewing coordinates: 34.19222, 139.14418
Altitude: Altitude not shown until sourced

Before you stargaze

· Give your eyes about 10 minutes to adapt to the dark after arrival.
· Keep flashlights and vehicle lights low for other stargazers.
· Recheck local wind, cloud, temperature, and official warnings just before departure.
· Verify roads, public transport, the walking route, and your return separately from the sky score.

Sources and checked dates

Geospatial Information Authority of Japan map

Checked: Jul 10, 2026, 00:00 · Review by: Jan 6, 2027, 00:00

Kozushima Tourism self-guided stargazing route

Checked: Jul 10, 2026, 00:00 · Review by: Aug 9, 2026, 00:00

Tokai Kisen Kozushima operation status, decision pending at 03:07 JST

Checked: Jul 10, 2026, 00:00 · Review by: Jul 10, 2026, 06:00

Japan Meteorological Agency warnings and advisories

Checked: Jul 10, 2026, 00:00 · Review by: Jul 11, 2026, 00:00

Back to Japan conditions

Tokyo via Takeshiba or Chofu · Altitude not shown until sourced

Miura Bay Observatory

A southern-horizon viewpoint on Kozushima, promoted for seasonal southern-sky observing.

Promising skies. Check access first.

Forecast availableSky conditions onlyAccess documented and arrival mapped

Sunset 18:54Astronomical dark 20:34Sunrise 04:45

86Excellent

Excellent↗

Moon for the selected night

Waxing crescent

33% · Below horizon

33%

Excellent

Cloud

20%

Wind 13.4 km/h

Excellent

Rain chance

Visibility 28 km

Poor

Humidity

84% · 26°C

Visibility 28 km

Hourly sky conditions

Sun, Jul 19

Open directionsGoogle Maps

Checks before departure

About 15 minutes by car from the village; verify dark-road and transport conditions.

Transport not verifiedRoad status not verifiedOfficial warning not verified

Time basis: Asia/Tokyo
Forecast and viewing coordinates: 34.19222, 139.14418
Altitude: Altitude not shown until sourced

Before you stargaze

· Give your eyes about 10 minutes to adapt to the dark after arrival.
· Keep flashlights and vehicle lights low for other stargazers.
· Recheck local wind, cloud, temperature, and official warnings just before departure.
· Verify roads, public transport, the walking route, and your return separately from the sky score.

Sources and checked dates

Geospatial Information Authority of Japan map

Checked: Jul 10, 2026, 00:00 · Review by: Jan 6, 2027, 00:00

Kozushima Tourism self-guided stargazing route

Checked: Jul 10, 2026, 00:00 · Review by: Aug 9, 2026, 00:00

Tokai Kisen Kozushima operation status, decision pending at 03:07 JST

Checked: Jul 10, 2026, 00:00 · Review by: Jul 10, 2026, 06:00

Japan Meteorological Agency warnings and advisories

Checked: Jul 10, 2026, 00:00 · Review by: Jul 11, 2026, 00:00