Ha Long has a subtropical climate with four mild seasons. Therefore, the summer months from June to August are humid and there are many rainy days. The best season is from November to April, when the weather is good, but it can feel chilly in winter.

Ha Long Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Highest Temperature 19 20 23 27 29 30 30 31 30 28 25 21 Lowest Temperature 14 15 18 22 24 26 26 26 24 21 18 15 Precipitation 35 28 37 49 176 353 303 278 168 56 36 32 　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

Vietnam 　Hanoi 　Ho Chiminh 　Da Nang 　Nha Trang 　 Other Vietnamese cities	The time difference of Ha Long 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