July 21, 2026 · Chilaw, Sri Lanka
Sunset in Chilaw today is at 18:33. Day length is 12h 30m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Chilaw's coordinates and updated daily.
Chilaw lies at 8°N. Near the tropics, day length stays close to 12 hours year-round, with only minor variation between seasons.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Chilaw.
The longest day in Chilaw is around 12h 34m (around June 21). The shortest is around 11h 41m (around December 21).
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 18:12 | 06:29 | 11h 44m |
| February | 18:22 | 06:29 | 11h 53m |
| March | 18:23 | 06:19 | 12h 4m |
| April | 18:20 | 06:03 | 12h 17m |
| May | 18:22 | 05:54 | 12h 28m |
| June | 18:29 | 05:55 | 12h 34m |
| July | 18:33 | 06:02 | 12h 31m |
| August | 18:27 | 06:05 | 12h 22m |
| September | 18:12 | 06:02 | 12h 10m |
| October | 17:56 | 05:58 | 11h 58m |
| November | 17:50 | 06:03 | 11h 47m |
| December | 17:57 | 06:16 | 11h 41m |