The climate of Siem Reap is a monsoon climate, with temperatures that are high throughout the year. The rainy season and dry season are clear, and the best season is the dry season from December to March. Note that the months of April and May are the hottest months of the year.

Phnom Penh Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Highest Temperature 31 32 34 35 34 33 32 32 31 30 30 30 Lowest Temperature 21 22 23 24 24 24 24 25 25 24 23 22 Precipitation 7 10 40 77 134 155 171 160 224 257 127 45 Precipitation number of days 0 1 2 5 10 15 15 17 18 16 6 1 　Singapore Highest Temperature 30 31 31 32 32 31 31 31 31 31 31 30 Lowest Temperature 23 24 24 24 25 25 24 24 24 24 24 23 Precipitation 198 154 171 141 158 140 145 143 177 167 252 304 Precipitation number of days 17 11 14 15 15 13 13 14 14 16 18 19

Cambodia 　Siem Reap 　Phnom Penh 　Sihanoukville	The time difference of Phnom Penh is UTC+7 There is no daylight saving time. Local time UTC 0:00 17:00 1:00 18:00 2:00 19:00 3:00 20:00 4:00 21:00 5:00 22:00 6:00 23:00 7:00 0:00 8:00 1:00 9:00 2:00 10:00 3:00 11:00 4:00 12:00 5:00 13:00 6:00 14:00 7:00 15:00 8:00 16:00 9:00 17:00 10:00 18:00 11:00 19:00 12:00 20:00 13:00 21:00 14:00 22:00 15:00 23:00 16:00