Sun & Shadow Map of Bayan Uula Sumu, Mongolia
Track sunlight direction and building shadows across Bayan Uula Sumu, Mongolia for any time and date. Drag the time slider above to watch shadows grow, shrink and rotate from sunrise to sunset.
Sunrise, sunset and daylight in Bayan Uula Sumu today
Today the sun rises at about 05:24 and sets at about 21:03 local time (Asia/Ulaanbaatar), giving roughly 15h 38m of daylight. The exact moment a shadow appears or disappears depends on nearby buildings and terrain, which the interactive map above accounts for.
How shadows move through the day in Bayan Uula Sumu
In the morning the sun sits low in the east, so shadows stretch long toward the west. As the sun climbs toward solar noon, shadows shorten and swing around to point north — Bayan Uula Sumu lies in the northern hemisphere. Through the afternoon the sun sinks toward the west and shadows lengthen again, this time falling toward the east. Use the time slider to see the exact sun angle and shadow direction at any minute of the day.
Shadow length by season
Shadow length depends on how high the sun climbs at midday, which changes with the seasons. At solar noon in Bayan Uula Sumu:
- Around the summer solstice, a 10 m building casts a midday shadow of roughly 4.0 m.
- Around the winter solstice, the same building casts a much longer shadow of roughly 25.5 m, because the sun stays lower in the sky.
Sunrise & sunset across the year in Bayan Uula Sumu
| Season | Date | Sunrise | Sunset | Daylight |
|---|---|---|---|---|
| Spring equinox | Mar 20 | 07:16 | 19:27 | 12h 11m |
| Summer solstice | Jun 21 | 05:25 | 21:07 | 15h 41m |
| Autumn equinox | Sep 22 | 06:59 | 19:14 | 12h 14m |
| Winter solstice | Dec 21 | 08:48 | 17:36 | 8h 48m |
Times shown for Asia/Ulaanbaatar. Calculated from the city's coordinates (45.166670, 101.400000).
Why check sun and shadows in Bayan Uula Sumu?
Knowing where the sun falls helps with choosing an apartment with good natural light, planning a rooftop terrace or garden, positioning solar panels, scheduling outdoor photography during golden hour, or simply finding a sunny café table. The map above models shadows cast by buildings using OpenStreetMap data, so you can check a specific street or address rather than relying on a general sunrise table.
Frequently asked questions
What time is golden hour in Bayan Uula Sumu?
Golden hour falls shortly after sunrise and shortly before sunset, when the sun is low and light is warm. With sunset around 21:03 today, the evening golden hour begins roughly an hour earlier. Use the slider to find the exact low-sun window.
Which direction do windows get the most sun in Bayan Uula Sumu?
In the northern hemisphere, south-facing windows receive the most sunlight through the day, while east-facing rooms get morning light and west-facing rooms get afternoon and evening light.