July 21, 2026 · Hạ Long, Vietnam
Hạ Long has 13h 14m of daylight today. Sunrise is at 05:22 and sunset is at 18:36. All times are calculated astronomically for Hạ Long's exact coordinates.
Hạ Long lies at 21°N. Near the tropics, day length stays close to 12 hours year-round, with only minor variation between seasons.
Day length changes fastest near the spring and autumn equinoxes and slowest near the longest day and shortest day of the year. See the year chart to visualise how daylight hours shift month by month for Hạ Long, or see daylight hours for every day of the year.
The longest day in Hạ Long is around 13h 24m (around June 21). The shortest is around 10h 51m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Day length | Sunrise | Sunset |
|---|---|---|---|
| January | 10h 59m | 06:32 | 17:31 |
| February | 11h 27m | 06:23 | 17:50 |
| March | 12h 0m | 06:02 | 18:02 |
| April | 12h 37m | 05:34 | 18:11 |
| May | 13h 7m | 05:15 | 18:23 |
| June | 13h 24m | 05:11 | 18:35 |
| July | 13h 18m | 05:19 | 18:37 |
| August | 12h 52m | 05:31 | 18:23 |
| September | 12h 17m | 05:40 | 17:57 |
| October | 11h 41m | 05:48 | 17:29 |
| November | 11h 9m | 06:03 | 17:12 |
| December | 10h 52m | 06:21 | 17:14 |