Sun & Shadow Map of Cầu Giấy, Vietnam
Track sunlight direction and building shadows across Cầu Giấy, Vietnam 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 Cầu Giấy today
Today the sun rises at about 05:13 and sets at about 18:39 local time (Asia/Bangkok), giving roughly 13h 26m 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 Cầu Giấy
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 — Cầu Giấy 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 Cầu Giấy:
- Around the summer solstice, a 10 m building casts a midday shadow of roughly 0.4 m.
- Around the winter solstice, the same building casts a much longer shadow of roughly 9.8 m, because the sun stays lower in the sky.
Sunrise & sunset across the year in Cầu Giấy
| Season | Date | Sunrise | Sunset | Daylight |
|---|---|---|---|---|
| Spring equinox | Mar 20 | 05:59 | 18:08 | 12h 8m |
| Summer solstice | Jun 21 | 05:14 | 18:42 | 13h 27m |
| Autumn equinox | Sep 22 | 05:44 | 17:54 | 12h 10m |
| Winter solstice | Dec 21 | 06:27 | 17:21 | 10h 53m |
Times shown for Asia/Bangkok. Calculated from the city's coordinates (21.032280, 105.800730).
Why check sun and shadows in Cầu Giấy?
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 Cầu Giấy?
Golden hour falls shortly after sunrise and shortly before sunset, when the sun is low and light is warm. With sunset around 18:39 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 Cầu Giấy?
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.