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Monthly climate in Bac Yen, Sơn La, Vietnam

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Bac Yen features a humid subtropical climate (Cwa).Temperatures typically range between 15 °C (59 °F) and 26 °C (79 °F) through the year, but rarely can drop to 4 °C (39 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1804 mm (71.0 inches) and receives 198 rainy days on the 1 mm (0.04 inches) threshold annually.Bac Yen enjoys an average of 3076 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 Bac Yen, Sơn La, Vietnam §

The warmest months in Bac Yen are June, July and August, with daily mean temperatures ranging from 25 to 26 °C (78 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 15 to 16 °C (59 - 60 °F) throughout the day. On average each year, Bac Yen experiences 191 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 Bac Yen, Sơn La, 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 28°C
(82°F)		 30°C
(87°F)		 32°C
(90°F)		 35°C
(95°F)		 36°C
(97°F)		 35°C
(95°F)		 34°C
(94°F)		 33°C
(93°F)		 33°C
(91°F)		 31°C
(89°F)		 31°C
(88°F)		 28°C
(83°F)
Mean maximum 26°C
(79°F)		 28°C
(83°F)		 31°C
(88°F)		 33°C
(92°F)		 34°C
(93°F)		 33°C
(91°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(90°F)		 30°C
(86°F)		 29°C
(84°F)		 26°C
(78°F)
Average high 19°C
(67°F)		 20°C
(69°F)		 25°C
(77°F)		 27°C
(80°F)		 29°C
(85°F)		 30°C
(87°F)		 29°C
(85°F)		 29°C
(84°F)		 28°C
(83°F)		 25°C
(77°F)		 23°C
(73°F)		 19°C
(67°F)
Daily mean 15°C
(59°F)		 16°C
(60°F)		 20°C
(68°F)		 22°C
(71°F)		 25°C
(77°F)		 26°C
(79°F)		 26°C
(78°F)		 25°C
(78°F)		 24°C
(76°F)		 21°C
(71°F)		 19°C
(66°F)		 15°C
(59°F)
Average low 12°C
(53°F)		 12°C
(54°F)		 16°C
(61°F)		 18°C
(65°F)		 21°C
(70°F)		 23°C
(74°F)		 23°C
(74°F)		 22°C
(73°F)		 21°C
(71°F)		 19°C
(66°F)		 16°C
(60°F)		 11°C
(52°F)
Mean minimum 6°C
(44°F)		 8°C
(47°F)		 12°C
(54°F)		 14°C
(57°F)		 17°C
(63°F)		 21°C
(71°F)		 21°C
(71°F)		 21°C
(70°F)		 19°C
(67°F)		 14°C
(58°F)		 11°C
(53°F)		 6°C
(43°F)
Minimum 4°C
(40°F)		 5°C
(41°F)		 11°C
(52°F)		 11°C
(52°F)		 15°C
(60°F)		 20°C
(69°F)		 21°C
(70°F)		 20°C
(69°F)		 17°C
(63°F)		 12°C
(55°F)		 9°C
(49°F)		 4°C
(39°F)

Compare climate in Bac Yen with other places

Compare temperature, precipitation, sunshine, UV index in Bac Yen, Sơn La, Vietnam with other places around the world.

Monthly average precipitation in Bac Yen, Sơn La, Vietnam §

Bac Yen usually has the most precipitation in July, August and October, with an average of 22 rainy days and 281 mm (11.1 inches) of precipitation per month.The driest months in Bac Yen are February, November and December. On average, 47 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bac Yen, Sơn La, 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) 70 (2.8) 48 (1.9) 97 (3.8) 164 (6.5) 158 (6.2) 175 (6.9) 305 (12.0) 359 (14.1) 157 (6.2) 179 (7.0) 44 (1.7) 48 (1.9)
Average precipitation days (≥ 1 mm) 10 10 17 17 18 22 23 26 21 17 9 8

Monthly sunshine hours in Bac Yen, Sơn La, Vietnam §

The sunniest months in Bac Yen are May, June and July, when the sun shines an average of 9 hours 20 minutes a day.Least sunny months in Bac Yen: January, February and April receive an average of 7 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bac Yen, Sơn La, 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 180 235 268 241 299 279 280 271 273 246 251 247
Mean daily daylight hours 10h 59m 11h 25m 12h 1m 12h 37m 13h 8m 13h 23m 13h 15m 12h 49m 12h 14m 11h 38m 11h 6m 10h 51m

Solar UV radiation in Bac Yen, Sơn La, Vietnam §

Bac Yen experiences the highest level of ultraviolet (UV) radiation in July, August and September, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure.January, February and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Bac Yen UV Index data.

Average daily maximum UV levels by month for Bac Yen, Sơn La, 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 13 13 14 14 15 14 14 12 10 8