sun .5deg.comSunrise, Sunset, Solar noon and Sun position here: Ko Samui, Thailand (Surat Thani). Longest day in 2026: 12 hours, 40 minutes, 54 seconds (2026-06-20). Shortest day in this year: 11 hours, 34 minutes , 9 seconds (2026-12-22).
)Largest solar noon altitude in Ko Samui in 2026 is: 76.12° (2026-06-19, 12:21:35). minimal 57.02° (2026-12-22, 12:18:40)
*All times are shown in Ko Samui local time.