July 21, 2026 · Chiang Rai, Thailand
Sunset in Chiang Rai today is at 19:03. Day length is 13h 10m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Chiang Rai's coordinates and updated daily.
Chiang Rai lies at 20°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 Chiang Rai.
The longest day in Chiang Rai is around 13h 20m (around June 21). The shortest is around 10h 56m (around December 21). Days are currently getting shorter — losing about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 18:02 | 06:59 | 11h 3m |
| February | 18:20 | 06:51 | 11h 29m |
| March | 18:31 | 06:30 | 12h 0m |
| April | 18:39 | 06:04 | 12h 35m |
| May | 18:50 | 05:46 | 13h 4m |
| June | 19:02 | 05:42 | 13h 20m |
| July | 19:04 | 05:50 | 13h 14m |
| August | 18:51 | 06:01 | 12h 49m |
| September | 18:25 | 06:09 | 12h 16m |
| October | 17:59 | 06:16 | 11h 43m |
| November | 17:42 | 06:30 | 11h 12m |
| December | 17:45 | 06:48 | 10h 56m |