Today in Ha Long, Vietnam, the sun rises at 5:16 AM and sets at 6:38 PM, giving the city exactly 13h 21m of daylight. That is 0 minutes longer than yesterday—approaching the solar plateau near the Winter Solstice. With 167 days until the Winter Solstice on December 21, Ha Long is currently in its Summer season.
Golden Hour & Twilight Windows in Ha Long
For photographers, filmmakers, and outdoor enthusiasts, the morning golden hour in Ha Long runs from N/A to 5:48 AM. The evening golden hour begins at 6:06 PM and lasts until 6:38 PM.
Civil twilight—when there is still sufficient ambient light to see clearly outdoors—begins at N/A. Near the equator, Ha Long's daylight stays remarkably stable year-round, deviating very little from the annual average.
Solar Noon & UV Index
Solar noon in Ha Long falls exactly at 11:57 AM, which is the moment the sun reaches its peak altitude of -5.60 above the horizon. At this specific time, the solar angle produces a relatively low UV exposure day for Ha Long, typical of its Summer season.
Why Does Sunrise Shift in Ha Long?
At Ha Long's latitude of 20.9488856°, the sun currently rises at an azimuth of 476.81° (ESE). Because of the Earth's axial tilt, this position shifts slightly every day. Sunrise and sunset times for Ha Long are calculated using advanced solar algorithms (SunCalc) based on coordinates 20.9488856, 107.1035074. Times are mathematically accurate to ±30 seconds.
Historical Sunrise in Ha Long (Past Years)
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Here is a comparison of today's sunrise and sunset times in Ha Long versus 1 year and 5 years ago:
| Year | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Today | 5:16 AM | 6:38 PM | 13h 21m |
| 2025 | 5:16 AM | 6:38 PM | 13h 21m |
| 2021 | 5:16 AM | 6:38 PM | 13h 21m |
Frequently Asked Questions
What time does the sun rise in Ha Long today?
In Ha Long, the sun rises at exactly 5:16 AM and sets at 6:38 PM today. This gives the city a total of 13h 21m of daylight.
When is golden hour in Ha Long today?
Today, morning golden hour in Ha Long runs from N/A to 5:48 AM. Evening golden hour begins at 6:06 PM and lasts until 6:35 PM.
Why does sunrise in Ha Long shift every day?
At Ha Long's latitude, the sun currently rises at an azimuth of 476.81° (ESE). Because of Earth's tilt, the city is approaching the solar plateau near the Winter Solstice until the Winter Solstice on December 21.
What is the UV Index in Ha Long at solar noon?
Solar noon occurs at 11:57 AM when the sun reaches -5.60. This produces a relatively low UV exposure day for Ha Long, typical of its Summer season.
Has the sunrise time in Ha Long changed compared to previous years?
Due to the Earth's precise orbit, solar times remain highly consistent year over year. Exactly one year ago in 2025, sunrise was at 5:16 AM, and five years ago in 2021, it was at 5:16 AM.