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Monthly climate in Cat Ba, Haiphong, Vietnam

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Cat Ba features a humid subtropical climate (Cwa).Temperatures typically range between 18 °C (65 °F) and 30 °C (86 °F) through the year, but rarely can drop to 9 °C (49 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 2119 mm (83.4 inches) and receives 172 rainy days on the 1 mm (0.04 inches) threshold annually.Cat Ba enjoys an average of 3093 hours of sunshine throughout the year, and daylight varies from 10 hours 53 minutes to 13 hours 21 minutes per day.

Monthly average temperatures in Cat Ba, Haiphong, Vietnam §

The warmest months in Cat Ba are June, July and August, with daily mean temperatures ranging from 29 to 30 °C (85 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 18 to 19 °C (65 - 67 °F) throughout the day. On average each year, Cat Ba experiences 185 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Cat Ba, Haiphong, Vietnam.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 24°C
(75°F)		 24°C
(75°F)		 27°C
(80°F)		 29°C
(85°F)		 33°C
(92°F)		 34°C
(94°F)		 33°C
(92°F)		 34°C
(93°F)		 33°C
(92°F)		 32°C
(90°F)		 28°C
(83°F)		 26°C
(80°F)
Mean maximum 22°C
(72°F)		 22°C
(73°F)		 25°C
(78°F)		 28°C
(82°F)		 31°C
(89°F)		 32°C
(91°F)		 33°C
(91°F)		 33°C
(92°F)		 32°C
(91°F)		 31°C
(88°F)		 28°C
(82°F)		 25°C
(76°F)
Average high 19°C
(67°F)		 20°C
(67°F)		 22°C
(72°F)		 25°C
(77°F)		 28°C
(83°F)		 31°C
(88°F)		 31°C
(87°F)		 31°C
(87°F)		 30°C
(86°F)		 27°C
(82°F)		 25°C
(77°F)		 21°C
(70°F)
Daily mean 18°C
(65°F)		 18°C
(65°F)		 21°C
(70°F)		 24°C
(75°F)		 27°C
(81°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(84°F)		 26°C
(79°F)		 23°C
(74°F)		 19°C
(67°F)
Average low 17°C
(63°F)		 17°C
(63°F)		 20°C
(69°F)		 23°C
(73°F)		 26°C
(79°F)		 29°C
(84°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(81°F)		 24°C
(76°F)		 22°C
(71°F)		 18°C
(65°F)
Mean minimum 11°C
(53°F)		 13°C
(56°F)		 17°C
(62°F)		 19°C
(66°F)		 23°C
(73°F)		 26°C
(79°F)		 27°C
(80°F)		 26°C
(79°F)		 26°C
(78°F)		 21°C
(70°F)		 17°C
(63°F)		 13°C
(55°F)
Minimum 10°C
(50°F)		 9°C
(49°F)		 16°C
(60°F)		 16°C
(61°F)		 20°C
(69°F)		 24°C
(76°F)		 26°C
(78°F)		 25°C
(78°F)		 25°C
(78°F)		 19°C
(67°F)		 14°C
(57°F)		 10°C
(50°F)

Compare climate in Cat Ba with other places

Compare temperature, precipitation, sunshine, UV index in Cat Ba, Haiphong, Vietnam with other places around the world.

Monthly average precipitation in Cat Ba, Haiphong, Vietnam §

Cat Ba usually has the most precipitation in July, August and September, with an average of 23 rainy days and 401 mm (15.8 inches) of precipitation per month.The driest months in Cat Ba are January, February and December. On average, 37 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Cat Ba, Haiphong, Vietnam.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 34 (1.3) 36 (1.4) 50 (2.0) 84 (3.3) 139 (5.5) 194 (7.6) 325 (12.8) 567 (22.3) 312 (12.3) 284 (11.2) 53 (2.1) 42 (1.6)
Average precipitation days (≥ 1 mm) 7 7 13 11 15 15 21 25 23 17 10 8

Monthly sunshine hours in Cat Ba, Haiphong, Vietnam §

The sunniest months in Cat Ba are May, June and July, when the sun shines an average of 9 hours 55 minutes a day.Least sunny months in Cat Ba: January, February and March receive an average of 6 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cat Ba, Haiphong, Vietnam.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 179 222 214 262 312 301 298 262 285 261 253 239
Mean daily daylight hours 11h 0m 11h 27m 12h 1m 12h 37m 13h 6m 13h 21m 13h 13m 12h 47m 12h 14m 11h 38m 11h 8m 10h 53m

Solar UV radiation in Cat Ba, Haiphong, Vietnam §

Cat Ba experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure.January, November and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Cat Ba UV Index data.

Average daily maximum UV levels by month for Cat Ba, Haiphong, Vietnam.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 8 10 12 13 12 13 13 13 13 11 9 7