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Monthly climate in San Juan Viejo, Guanajuato, Mexico

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification San Juan Viejo features a subtropical climate (Cwb).Temperatures typically range between 14 °C (57 °F) and 21 °C (70 °F) through the year, but rarely can drop to 1 °C (34 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1179 mm (46.4 inches) and receives 134 rainy days on the 1 mm (0.04 inches) threshold annually.San Juan Viejo enjoys an average of 3545 hours of sunshine throughout the year, and daylight varies from 10 hours 55 minutes to 13 hours 18 minutes per day.

Monthly average temperatures in San Juan Viejo, Guanajuato, Mexico §

The warmest months in San Juan Viejo are April, May and June, with daily mean temperatures ranging from 20 to 21 °C (68 - 70 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 14 to 16 °C (57 - 60 °F) throughout the day. On average each year, San Juan Viejo experiences 162 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 San Juan Viejo, Guanajuato, Mexico.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
(83°F)		 29°C
(85°F)		 31°C
(88°F)		 33°C
(92°F)		 34°C
(94°F)		 34°C
(93°F)		 28°C
(82°F)		 27°C
(81°F)		 27°C
(81°F)		 29°C
(84°F)		 29°C
(84°F)		 27°C
(80°F)
Mean maximum 26°C
(79°F)		 28°C
(84°F)		 30°C
(86°F)		 31°C
(89°F)		 33°C
(91°F)		 31°C
(89°F)		 27°C
(81°F)		 26°C
(80°F)		 27°C
(80°F)		 27°C
(80°F)		 27°C
(80°F)		 26°C
(78°F)
Average high 22°C
(73°F)		 24°C
(76°F)		 27°C
(81°F)		 29°C
(84°F)		 29°C
(85°F)		 27°C
(80°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(73°F)
Daily mean 14°C
(57°F)		 16°C
(61°F)		 18°C
(65°F)		 20°C
(68°F)		 21°C
(70°F)		 20°C
(68°F)		 18°C
(65°F)		 18°C
(65°F)		 18°C
(65°F)		 17°C
(64°F)		 16°C
(60°F)		 14°C
(57°F)
Average low 7°C
(44°F)		 8°C
(47°F)		 10°C
(50°F)		 11°C
(53°F)		 13°C
(56°F)		 14°C
(58°F)		 14°C
(57°F)		 14°C
(57°F)		 14°C
(57°F)		 12°C
(54°F)		 9°C
(49°F)		 7°C
(45°F)
Mean minimum 3°C
(37°F)		 5°C
(41°F)		 7°C
(46°F)		 8°C
(47°F)		 10°C
(51°F)		 12°C
(54°F)		 12°C
(53°F)		 12°C
(53°F)		 11°C
(52°F)		 9°C
(48°F)		 6°C
(43°F)		 3°C
(38°F)
Minimum 1°C
(35°F)		 4°C
(39°F)		 6°C
(43°F)		 7°C
(45°F)		 9°C
(49°F)		 10°C
(51°F)		 11°C
(52°F)		 11°C
(52°F)		 9°C
(48°F)		 5°C
(42°F)		 3°C
(38°F)		 1°C
(34°F)

Compare climate in San Juan Viejo with other places

Compare temperature, precipitation, sunshine, UV index in San Juan Viejo, Guanajuato, Mexico with other places around the world.

Monthly average precipitation in San Juan Viejo, Guanajuato, Mexico §

San Juan Viejo usually has the most precipitation in July, August and September, with an average of 24 rainy days and 258 mm (10.2 inches) of precipitation per month.The driest months in San Juan Viejo are January, April and December. On average, 9 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Juan Viejo, Guanajuato, Mexico.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) 11 (0.4) 12 (0.5) 17 (0.7) 10 (0.4) 54 (2.1) 180 (7.1) 285 (11.2) 262 (10.3) 227 (9.0) 78 (3.1) 35 (1.4) 6 (0.3)
Average precipitation days (≥ 1 mm) 3 3 3 2 11 18 27 25 22 14 5 1

Monthly sunshine hours in San Juan Viejo, Guanajuato, Mexico §

The sunniest months in San Juan Viejo are March, April and May, when the sun shines an average of 10 hours 37 minutes a day.Least sunny months in San Juan Viejo: January, February and November receive an average of 8 hours 50 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Juan Viejo, Guanajuato, Mexico.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 238 275 320 322 334 298 306 302 283 291 281 291
Mean daily daylight hours 11h 3m 11h 29m 12h 2m 12h 36m 13h 5m 13h 18m 13h 11m 12h 45m 12h 13m 11h 39m 11h 9m 10h 55m

Solar UV radiation in San Juan Viejo, Guanajuato, Mexico §

San Juan Viejo experiences the highest level of ultraviolet (UV) radiation in April, May and September, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure.January, November and December are in the 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 San Juan Viejo UV Index data.

Average daily maximum UV levels by month for San Juan Viejo, Guanajuato, Mexico.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) 9 11 14 15 14 14 14 13 14 12 9 8