Japan observation tower
Chiba Port Tower
You can see 186 km from here, looking north-west.
Calculating the panorama…
Drag to turn around. The relief is drawn 2.2 times taller so the ridges can be read; far ridges are paler, as in the real air.
The view
Up to 186 km away.
Calculated on the relief one degree at a time, up to 250 km, with the curvature of the Earth and the refraction of the air: what stands above the horizon from here.
Our own rating, from the relief and the climate only: open horizon (35 points), how far you see (25), sea and named peaks in view (20) and clear months (20).
- 186 kmFarthest ridgelooking north-west
- 100%Open horizonof the circle where the horizon is below your eyes
- 1%Seaof the circle where the horizon is the sea
- 211Peaks in viewnamed summits that rise above the relief in front
- 5 mAltitudeabove the sea, at the highest point of the viewpoint
The 211 peaks you can name from here
From west to east as you turn around: height, distance and direction. Each one links to its guide on Peakyas, our mountain atlas.
From the relief only: buildings, trees and haze are not in the model. On a hazy day you see much less; 250 km is the limit of our calculation.
The sun
The best sunsets are in August.
When the sun really disappears from this viewpoint — behind the relief or into the sea — and in which direction, on the 15th of each month, in local time.
- Jansouth-west4 min before the sea-level sunset34%
- Febwest4 min before the sea-level sunset28%
- Marwest6 min before the sea-level sunset29%
- Aprwest6 min before the sea-level sunset30%
- Maynorth-west4 min before the sea-level sunset28%
- Junnorth-west6 min before the sea-level sunset19%
- Julnorth-west6 min before the sea-level sunset25%
- Augwest8 min before the sea-level sunset39%
- Sepwest6 min before the sea-level sunset30%
- Octwest8 min before the sea-level sunset26%
- Novsouth-west4 min before the sea-level sunset28%
- Decsouth-west4 min before the sea-level sunset34%
- Time: when the sun goes behind the horizon you see from here.
- Minutes: how much earlier the relief hides the sun.
- %: share of clear sky that month (NASA, 2001–2020).
The highlighted months are the clearest. Golden hour starts about an hour before.
The place
Chiba Port Tower.
Tower in Chiba, Japan
Chiba Port Tower is an observation tower in Japan.
On a clear day the farthest ridge you can see is 186 km away, looking north-west.
211 named peaks rise above the relief in front; the most prominent is Mount Nikkō-Shirane (2,578 m), 148 km away.
The horizon is open, below your eyes, over 100% of the circle.
The skies are clearest in August.

Get there and stay
- Going upHours in OpenStreetMap: Mo-Su 09:00-20:30Official site↗
- 東横インplace to stay · 0.8 km · 59 within 10 km
- Chibanearest town · 1.7 km in a straight linePlaces to stay in ChibaBooking.com · sponsored link↗
- Tokyo Haneda International Airport (HND)nearest airport with scheduled flights · 29 km in a straight lineCar hire at HND airport (Tokyo)Discover Cars · sponsored link↗
Plan the visit
A guided tour, a bed nearby, a car.
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
From above
The viewpoint and its surroundings.
The satellite image of the 6 × 6 km around the viewpoint, with what OpenStreetMap shows nearby.

Around, in OpenStreetMap
- 1other viewpoints within 5 km
- 1named peaks within 5 km荒木山
- 24shelters and huts within 5 km
- 255car parks within 3 km
- 2visitor centres within 5 km千葉市観光情報センター, 無料案内所バッチコイ
- 221restaurants and cafés within 3 km
- 59places to stay within 10 km東横イン, ザキューブホテル千葉, Monselaton and 56 more
- cable car and funicular stations within 5 km
- marked trails within 3 km
- campsites within 10 km
Counted in OpenStreetMap, the map anyone can edit. A low number may just mean nobody has mapped it yet.
In our other atlases
What you see from Chiba Port Tower, and what is near.
Everything around this viewpoint — mountains, water, forests, birds, caves and the night sky — in the family's atlases.
Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, OpenStreetMap, GBIF). Links open when each site is online.
Photographs
The view, as people saw it.
Other viewpoints nearby.
Where these figures come from
| Name and type | Wikidata (Q5095310) · CC0 |
|---|---|
| Sun | J. Meeus, Astronomical Algorithms |
| Peaks in view | Peakyas (Wikidata, CC0) |
| Panorama and altitude | Copernicus DEM GLO-90 / GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Clouds | NASA POWER (CERES SYN1deg, 2001–2020; MERRA-2) |
| What is around | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Sister atlases | Peakyas, Islandyas, Forestyas, Birdyas |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers, canyons, caves, dark skies, viewpoints, birdwatching or forests?
Same idea, other landscapes: field atlases built on open data, in seven languages.






