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Monthly climate in San Diego de la Union, Guanajuato, Mexico

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification San Diego de la Union features a cold semi-arid climate (BSk). Temperatures typically range between 13 °C (55 °F) and 22 °C (71 °F) through the year, but rarely can drop to -2 °C (28 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 533 mm (21.0 inches) and receives 85 rainy days on the 1 mm (0.04 inches) threshold annually. San Diego de la Union enjoys an average of 3569 hours of sunshine throughout the year, and daylight varies from 10 hours 50 minutes to 13 hours 24 minutes per day.

Monthly average temperatures in San Diego de la Union, Guanajuato, Mexico §

The warmest months in San Diego de la Union are April, May and June, with daily mean temperatures ranging from 20 to 22 °C (69 - 71 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 13 to 15 °C (55 - 59 °F) throughout the day. On average each year, San Diego de la Union experiences 185 days above 25 °C (77.0 °F) and 1 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 Diego de la Union, 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)		 31°C
(89°F)		 33°C
(92°F)		 34°C
(94°F)		 35°C
(95°F)		 34°C
(93°F)		 32°C
(89°F)		 32°C
(89°F)		 29°C
(85°F)		 29°C
(84°F)		 29°C
(84°F)		 27°C
(81°F)
Mean maximum 26°C
(80°F)		 29°C
(85°F)		 31°C
(89°F)		 33°C
(91°F)		 34°C
(93°F)		 32°C
(89°F)		 30°C
(86°F)		 30°C
(86°F)		 28°C
(83°F)		 28°C
(83°F)		 27°C
(81°F)		 26°C
(80°F)
Average high 22°C
(71°F)		 24°C
(76°F)		 27°C
(81°F)		 29°C
(85°F)		 30°C
(86°F)		 27°C
(81°F)		 26°C
(79°F)		 26°C
(80°F)		 25°C
(76°F)		 24°C
(75°F)		 23°C
(73°F)		 22°C
(72°F)
Daily mean 13°C
(55°F)		 15°C
(60°F)		 18°C
(64°F)		 20°C
(69°F)		 22°C
(71°F)		 20°C
(69°F)		 19°C
(67°F)		 20°C
(68°F)		 19°C
(66°F)		 17°C
(63°F)		 15°C
(59°F)		 13°C
(56°F)
Average low 6°C
(44°F)		 8°C
(47°F)		 10°C
(51°F)		 13°C
(55°F)		 15°C
(59°F)		 15°C
(59°F)		 15°C
(59°F)		 15°C
(59°F)		 14°C
(58°F)		 12°C
(54°F)		 9°C
(48°F)		 6°C
(44°F)
Mean minimum 1°C
(35°F)		 2°C
(36°F)		 5°C
(42°F)		 8°C
(47°F)		 11°C
(52°F)		 13°C
(55°F)		 12°C
(54°F)		 13°C
(55°F)		 11°C
(52°F)		 8°C
(46°F)		 3°C
(38°F)		 -0°C
(32°F)
Minimum -1°C
(31°F)		 0°C
(33°F)		 1°C
(34°F)		 7°C
(45°F)		 9°C
(48°F)		 10°C
(50°F)		 12°C
(54°F)		 12°C
(54°F)		 8°C
(47°F)		 4°C
(40°F)		 -1°C
(30°F)		 -2°C
(28°F)

Compare climate in San Diego de la Union with other places

Compare temperature, precipitation, sunshine, UV index in San Diego de la Union, Guanajuato, Mexico with other places around the world.

Monthly average precipitation in San Diego de la Union, Guanajuato, Mexico §

San Diego de la Union usually has the most precipitation in June, July and September, with an average of 15 rainy days and 105 mm (4.1 inches) of precipitation per month. The driest months in San Diego de la Union are January, February and December. On average, 6 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Diego de la Union, 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) 5 (0.2) 7 (0.3) 10 (0.4) 7 (0.3) 39 (1.5) 115 (4.5) 90 (3.5) 70 (2.8) 110 (4.3) 58 (2.3) 18 (0.7) 5 (0.2)
Average precipitation days (≥ 1 mm) 1 2 2 2 8 14 15 12 17 9 2 1

Monthly sunshine hours in San Diego de la Union, Guanajuato, Mexico §

The sunniest months in San Diego de la Union are May, July and August, when the sun shines an average of 10 hours 42 minutes a day. Least sunny months in San Diego de la Union: January, February and November receive an average of 8 hours 30 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Diego de la Union, 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 226 264 314 320 339 320 330 325 286 282 274 283
Mean daily daylight hours 10h 58m 11h 26m 12h 1m 12h 38m 13h 9m 13h 24m 13h 16m 12h 49m 12h 13m 11h 37m 11h 5m 10h 50m

Solar UV radiation in San Diego de la Union, Guanajuato, Mexico §

San Diego de la Union 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 10. For more detailed information, check out our hourly San Diego de la Union UV Index data.

Average daily maximum UV levels by month for San Diego de la Union, 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 15 14 14 14 14 12 10 8

Detailed Monthly Weather Insights for San Diego de la Union, Guanajuato, Mexico

Discover in-depth weather details for every month in San Diego de la Union. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about San Diego de la Union's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.