Dusk and last light in Haikou
Last light (civil dusk) in Haikou today fades at 19:40, about 24 minutes after the sun sets at 19:17. The sky is fully dark by astronomical dusk at 20:37. Times for Wednesday, 29 July 2026, in Haikou's local time zone.
| Stage | What it means | Local time |
|---|---|---|
| Sunset | the sun dips below the horizon | 19:17 |
| Civil dusk (last light) | sun 6° below, usable light ends | 19:40 |
| Nautical dusk | sun 12° below, sea horizon gone | 20:08 |
| Astronomical dusk | sun 18° below, full night | 20:37 |
Dusk in Haikou, stage by stage
Dusk in Haikou runs the same three stages as dawn, in reverse. Once the sun sets, civil dusk, the last usable light, lingers until the sun is 6 degrees below the horizon. Nautical dusk follows at 12 degrees, when the sea horizon disappears, and astronomical dusk at 18 degrees, after which the sky is fully dark and the faintest stars appear. How long dusk lasts depends on Haikou's latitude: near the equator night falls fast, while at high latitudes dusk can stretch for hours or, in high summer, never fully darken. Every time here is computed for Haikou's coordinates and shown in its local time zone.
Frequently asked questions about dusk in Haikou
What time is last light in Haikou today?
Last light (civil dusk) in Haikou fades at 19:40 on Wednesday, 29 July 2026, about 24 minutes after sunset at 19:17. All times are in Haikou's local time zone.
What is the difference between dusk and sunset in Haikou?
Sunset is the instant the sun disappears below the horizon in Haikou; dusk is the fading twilight that follows. Last light (civil dusk) ends the usable light after sunset.
When does it get fully dark in Haikou?
Haikou reaches full darkness at astronomical dusk, 20:37 on Wednesday, 29 July 2026, when the sun is 18 degrees below the horizon.
Every time on this page is computed from Haikou's coordinates with SunCalc, not estimated or looked up from a table.