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Monthly climate in Son Tay, Hanoi, Vietnam

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Son Tay features a humid subtropical climate (Cwa).Temperatures typically range between 18 °C (65 °F) and 31 °C (87 °F) through the year, but rarely can drop to 9 °C (48 °F) or can rise to as high as 41 °C (106 °F).The average annual precipitation amounts to about 1720 mm (67.7 inches) and receives 170 rainy days on the 1 mm (0.04 inches) threshold annually.Son Tay enjoys an average of 2689 hours of sunshine throughout the year, and daylight varies from 10 hours 51 minutes to 13 hours 23 minutes per day.

Monthly average temperatures in Son Tay, Hanoi, Vietnam §

The warmest months in Son Tay are June, July and August, with daily mean temperatures ranging from 29 to 31 °C (85 - 87 °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 - 66 °F) throughout the day. On average each year, Son Tay experiences 231 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 Son Tay, Hanoi, 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 29°C
(84°F)		 31°C
(89°F)		 34°C
(94°F)		 36°C
(96°F)		 40°C
(104°F)		 41°C
(106°F)		 39°C
(103°F)		 39°C
(102°F)		 37°C
(98°F)		 34°C
(94°F)		 32°C
(90°F)		 30°C
(87°F)
Mean maximum 28°C
(82°F)		 28°C
(83°F)		 32°C
(90°F)		 34°C
(94°F)		 37°C
(99°F)		 38°C
(100°F)		 38°C
(101°F)		 38°C
(100°F)		 36°C
(97°F)		 33°C
(92°F)		 31°C
(88°F)		 28°C
(82°F)
Average high 21°C
(70°F)		 22°C
(72°F)		 26°C
(79°F)		 29°C
(84°F)		 32°C
(90°F)		 34°C
(94°F)		 34°C
(93°F)		 33°C
(92°F)		 32°C
(90°F)		 28°C
(83°F)		 26°C
(79°F)		 22°C
(72°F)
Daily mean 18°C
(65°F)		 19°C
(66°F)		 23°C
(73°F)		 25°C
(77°F)		 28°C
(83°F)		 31°C
(87°F)		 30°C
(86°F)		 29°C
(85°F)		 29°C
(84°F)		 25°C
(78°F)		 23°C
(73°F)		 19°C
(66°F)
Average low 16°C
(61°F)		 16°C
(62°F)		 20°C
(68°F)		 22°C
(72°F)		 25°C
(78°F)		 28°C
(82°F)		 27°C
(81°F)		 27°C
(81°F)		 26°C
(79°F)		 23°C
(74°F)		 20°C
(68°F)		 16°C
(61°F)
Mean minimum 11°C
(52°F)		 12°C
(54°F)		 16°C
(60°F)		 17°C
(64°F)		 22°C
(72°F)		 25°C
(77°F)		 26°C
(78°F)		 25°C
(78°F)		 24°C
(75°F)		 19°C
(67°F)		 16°C
(60°F)		 11°C
(51°F)
Minimum 9°C
(48°F)		 10°C
(50°F)		 13°C
(56°F)		 15°C
(60°F)		 20°C
(69°F)		 23°C
(74°F)		 25°C
(77°F)		 25°C
(77°F)		 22°C
(72°F)		 18°C
(65°F)		 14°C
(57°F)		 9°C
(48°F)

Compare climate in Son Tay with other places

Compare temperature, precipitation, sunshine, UV index in Son Tay, Hanoi, Vietnam with other places around the world.

Monthly average precipitation in Son Tay, Hanoi, Vietnam §

Son Tay usually has the most precipitation in July, August and October, with an average of 19 rainy days and 280 mm (11.0 inches) of precipitation per month.The driest months in Son Tay are February, November and December. On average, 39 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Son Tay, Hanoi, 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) 52 (2.0) 36 (1.4) 62 (2.5) 124 (4.9) 146 (5.8) 177 (7.0) 237 (9.3) 377 (14.9) 204 (8.0) 226 (8.9) 40 (1.6) 40 (1.6)
Average precipitation days (≥ 1 mm) 7 8 15 14 16 15 21 22 22 15 7 8

Monthly sunshine hours in Son Tay, Hanoi, Vietnam §

The sunniest months in Son Tay are May, June and July, when the sun shines an average of 9 hours 0 minutes a day.Least sunny months in Son Tay: January, February and March receive an average of 5 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Son Tay, Hanoi, 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 129 183 153 187 280 275 273 258 266 234 232 213
Mean daily daylight hours 10h 59m 11h 26m 12h 1m 12h 37m 13h 8m 13h 23m 13h 15m 12h 49m 12h 14m 11h 38m 11h 6m 10h 51m

Solar UV radiation in Son Tay, Hanoi, Vietnam §

Son Tay experiences the highest level of ultraviolet (UV) radiation in May, 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 Son Tay UV Index data.

Average daily maximum UV levels by month for Son Tay, Hanoi, 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 12 13 12 12 13 13 11 9 7