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Monthly climate in Zacatecas, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Zacatecas features a cold semi-arid climate (BSk). Temperatures typically range between 12 °C (54 °F) and 21 °C (70 °F) through the year, but rarely can drop to -8 °C (18 °F) or can rise to as high as 34 °C (93 °F). The average annual precipitation amounts to about 638 mm (25.1 inches) and receives 73 rainy days on the 1 mm (0.04 inches) threshold annually. Zacatecas enjoys an average of 3647 hours of sunshine throughout the year, and daylight varies from 10 hours 44 minutes to 13 hours 29 minutes per day.

Monthly average temperatures in Zacatecas, Mexico

The warmest months in Zacatecas are May, June and August, with daily mean temperatures ranging from 19 to 21 °C (67 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 12 to 14 °C (54 - 58 °F) throughout the day. On average each year, Zacatecas experiences 131 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Zacatecas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum26°C
(78°F)		29°C
(85°F)		32°C
(90°F)		32°C
(89°F)		34°C
(93°F)		34°C
(93°F)		30°C
(85°F)		30°C
(86°F)		27°C
(81°F)		28°C
(82°F)		27°C
(81°F)		26°C
(79°F)
Mean maximum24°C
(75°F)		27°C
(80°F)		29°C
(84°F)		30°C
(86°F)		32°C
(89°F)		31°C
(88°F)		28°C
(83°F)		28°C
(83°F)		26°C
(79°F)		26°C
(80°F)		26°C
(79°F)		24°C
(76°F)
Average high20°C
(68°F)		22°C
(72°F)		25°C
(78°F)		27°C
(81°F)		28°C
(83°F)		27°C
(80°F)		25°C
(77°F)		25°C
(77°F)		23°C
(73°F)		23°C
(74°F)		22°C
(72°F)		20°C
(68°F)
Daily mean12°C
(54°F)		14°C
(58°F)		17°C
(63°F)		19°C
(66°F)		21°C
(70°F)		20°C
(69°F)		19°C
(66°F)		19°C
(67°F)		18°C
(64°F)		17°C
(62°F)		14°C
(58°F)		12°C
(54°F)
Average low6°C
(42°F)		7°C
(45°F)		9°C
(49°F)		11°C
(52°F)		13°C
(55°F)		14°C
(58°F)		13°C
(56°F)		13°C
(57°F)		13°C
(55°F)		11°C
(52°F)		8°C
(46°F)		6°C
(43°F)
Mean minimum-0°C
(32°F)		2°C
(37°F)		5°C
(42°F)		6°C
(44°F)		9°C
(49°F)		12°C
(54°F)		11°C
(53°F)		11°C
(53°F)		10°C
(51°F)		7°C
(44°F)		2°C
(36°F)		-2°C
(29°F)
Minimum-2°C
(29°F)		1°C
(34°F)		4°C
(40°F)		5°C
(40°F)		8°C
(47°F)		10°C
(50°F)		11°C
(51°F)		10°C
(50°F)		9°C
(48°F)		4°C
(40°F)		-3°C
(28°F)		-8°C
(18°F)

Compare climate in Zacatecas with other places

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

Monthly average precipitation in Zacatecas, Mexico

Zacatecas usually has the most precipitation in June, July and September, with an average of 14 rainy days and 136 mm (5.3 inches) of precipitation per month. The driest months in Zacatecas are February, March and April. On average, 8 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Zacatecas. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)17 (0.7)9 (0.4)6 (0.2)7 (0.3)26 (1.0)110 (4.3)149 (5.9)89 (3.5)148 (5.8)48 (1.9)16 (0.6)12 (0.5)
Average precipitation days (≥ 1 mm)2111511151017721

Monthly sunshine hours in Zacatecas, Mexico

The sunniest months in Zacatecas are May, July and August, when the sun shines an average of 10 hours 58 minutes a day. Least sunny months in Zacatecas: January, February and December receive an average of 8 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Zacatecas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours229266316327350334334335293294282282
Mean daily daylight hours10h 54m11h 23m12h 1m12h 41m13h 13m13h 29m13h 21m12h 52m12h 14m11h 35m11h 1m10h 44m

Solar UV radiation in Zacatecas, Mexico

Zacatecas 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 Zacatecas UV Index data.

Average daily maximum UV levels by month for Zacatecas. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)9111415151414141412108