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Monthly climate in San Marcos, Coahuila, Mexico

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification San Marcos features a hot desert climate (BWh).Temperatures typically range between 15 °C (60 °F) and 30 °C (86 °F) through the year, but rarely can drop to -1 °C (30 °F) or can rise to as high as 42 °C (108 °F).The average annual precipitation amounts to about 139 mm (5.5 inches) and receives 20 rainy days on the 1 mm (0.04 inches) threshold annually.San Marcos enjoys an average of 3650 hours of sunshine throughout the year, and daylight varies from 10 hours 33 minutes to 13 hours 42 minutes per day.

Monthly average temperatures in San Marcos, Coahuila, Mexico §

The warmest months in San Marcos 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 15 to 19 °C (60 - 67 °F) throughout the day. On average each year, San Marcos experiences 270 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 Marcos, Coahuila, 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 32°C
(89°F)		 36°C
(97°F)		 38°C
(102°F)		 38°C
(101°F)		 42°C
(108°F)		 42°C
(108°F)		 40°C
(104°F)		 39°C
(103°F)		 39°C
(103°F)		 37°C
(98°F)		 34°C
(94°F)		 32°C
(90°F)
Mean maximum 30°C
(87°F)		 33°C
(93°F)		 37°C
(98°F)		 38°C
(100°F)		 41°C
(105°F)		 40°C
(105°F)		 39°C
(102°F)		 38°C
(101°F)		 37°C
(99°F)		 35°C
(96°F)		 32°C
(90°F)		 30°C
(85°F)
Average high 23°C
(73°F)		 27°C
(80°F)		 30°C
(86°F)		 33°C
(92°F)		 36°C
(98°F)		 37°C
(98°F)		 35°C
(95°F)		 35°C
(96°F)		 33°C
(91°F)		 31°C
(88°F)		 26°C
(80°F)		 23°C
(74°F)
Daily mean 15°C
(60°F)		 19°C
(67°F)		 22°C
(73°F)		 26°C
(79°F)		 29°C
(85°F)		 30°C
(86°F)		 29°C
(85°F)		 30°C
(85°F)		 27°C
(81°F)		 24°C
(76°F)		 19°C
(67°F)		 16°C
(61°F)
Average low 9°C
(48°F)		 12°C
(54°F)		 15°C
(59°F)		 18°C
(65°F)		 22°C
(72°F)		 23°C
(75°F)		 24°C
(75°F)		 24°C
(75°F)		 22°C
(71°F)		 18°C
(64°F)		 13°C
(55°F)		 10°C
(49°F)
Mean minimum 2°C
(35°F)		 5°C
(41°F)		 9°C
(48°F)		 12°C
(53°F)		 17°C
(62°F)		 21°C
(70°F)		 21°C
(69°F)		 20°C
(69°F)		 17°C
(64°F)		 10°C
(50°F)		 6°C
(43°F)		 2°C
(36°F)
Minimum 0°C
(33°F)		 -1°C
(31°F)		 6°C
(43°F)		 9°C
(48°F)		 14°C
(58°F)		 19°C
(66°F)		 20°C
(69°F)		 18°C
(65°F)		 16°C
(62°F)		 9°C
(48°F)		 -1°C
(31°F)		 -1°C
(30°F)

Compare climate in San Marcos with other places

Compare temperature, precipitation, sunshine, UV index in San Marcos, Coahuila, Mexico with other places around the world.

Monthly average precipitation in San Marcos, Coahuila, Mexico §

San Marcos usually has the most precipitation in July, September and October, with an average of 4 rainy days and 27 mm (1.0 inches) of precipitation per month.The driest months in San Marcos are January, April and May. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Marcos, Coahuila, 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) 4 (0.1) 5 (0.2) 9 (0.3) 2 (0.1) 4 (0.2) 12 (0.5) 22 (0.9) 8 (0.3) 33 (1.3) 24 (1.0) 5 (0.2) 11 (0.4)
Average precipitation days (≥ 1 mm) 0 0 1 0 0 3 3 2 5 4 1 1

Monthly sunshine hours in San Marcos, Coahuila, Mexico §

The sunniest months in San Marcos are May, June and July, when the sun shines an average of 11 hours 30 minutes a day.Least sunny months in San Marcos: January, February and November receive an average of 8 hours 22 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Marcos, Coahuila, 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 218 262 310 324 353 349 355 343 297 290 272 272
Mean daily daylight hours 10h 43m 11h 17m 12h 1m 12h 46m 13h 24m 13h 42m 13h 32m 12h 58m 12h 15m 11h 30m 10h 52m 10h 33m

Solar UV radiation in San Marcos, Coahuila, Mexico §

San Marcos 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 8. For more detailed information, check out our hourly San Marcos UV Index data.

Average daily maximum UV levels by month for San Marcos, Coahuila, 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) 7 10 12 13 13 13 13 13 13 11 8 7