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Monthly climate in Monterrey, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Monterrey features a oceanic climate (Cfb). Temperatures typically range between 12 °C (54 °F) and 17 °C (64 °F) through the year, but rarely can drop to -1 °C (31 °F) or can rise to as high as 29 °C (84 °F). The average annual precipitation amounts to about 1399 mm (55.1 inches) and receives 188 rainy days on the 1 mm (0.04 inches) threshold annually. Monterrey enjoys an average of 3594 hours of sunshine throughout the year, and daylight varies from 11 hours 0 minutes to 13 hours 13 minutes per day.

Monthly average temperatures in Monterrey, Mexico

The warmest months in Monterrey are April, May and June, with daily mean temperatures ranging from 17 to 17 °C (62 - 64 °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 - 57 °F) throughout the day. On average each year, Monterrey experiences 27 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 Monterrey. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum25°C
(78°F)		29°C
(84°F)		28°C
(83°F)		28°C
(83°F)		28°C
(82°F)		26°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)		27°C
(81°F)		25°C
(78°F)		24°C
(75°F)
Mean maximum24°C
(75°F)		26°C
(79°F)		27°C
(81°F)		27°C
(81°F)		27°C
(80°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)
Average high18°C
(66°F)		21°C
(70°F)		22°C
(72°F)		23°C
(74°F)		23°C
(74°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		21°C
(70°F)		20°C
(68°F)		19°C
(67°F)
Daily mean12°C
(54°F)		14°C
(57°F)		15°C
(59°F)		17°C
(62°F)		17°C
(64°F)		17°C
(63°F)		16°C
(61°F)		17°C
(62°F)		17°C
(62°F)		16°C
(61°F)		14°C
(57°F)		13°C
(55°F)
Average low7°C
(44°F)		7°C
(45°F)		8°C
(47°F)		11°C
(52°F)		12°C
(54°F)		13°C
(55°F)		11°C
(52°F)		12°C
(53°F)		12°C
(55°F)		11°C
(53°F)		9°C
(48°F)		7°C
(45°F)
Mean minimum2°C
(36°F)		3°C
(37°F)		4°C
(40°F)		6°C
(44°F)		9°C
(48°F)		10°C
(50°F)		8°C
(47°F)		9°C
(48°F)		9°C
(49°F)		8°C
(47°F)		5°C
(41°F)		2°C
(36°F)
Minimum0°C
(33°F)		1°C
(35°F)		3°C
(38°F)		4°C
(39°F)		6°C
(44°F)		9°C
(49°F)		8°C
(46°F)		8°C
(47°F)		7°C
(45°F)		5°C
(41°F)		3°C
(39°F)		-1°C
(31°F)

Compare climate in Monterrey with other places

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

Monthly average precipitation in Monterrey, Mexico

Monterrey usually has the most precipitation in May, June and September, with an average of 23 rainy days and 226 mm (8.9 inches) of precipitation per month. The driest months in Monterrey are January, February and December. On average, 32 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Monterrey. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)36 (1.4)31 (1.2)54 (2.1)91 (3.6)167 (6.6)259 (10.2)125 (4.9)162 (6.4)251 (9.9)138 (5.4)56 (2.2)28 (1.1)
Average precipitation days (≥ 1 mm)881116222516202419127

Monthly sunshine hours in Monterrey, Mexico

The sunniest months in Monterrey are May, July and August, when the sun shines an average of 10 hours 28 minutes a day. Least sunny months in Monterrey: January, February and September receive an average of 8 hours 54 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Monterrey. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours237274314314324297329319291305291296
Mean daily daylight hours11h 7m11h 31m12h 2m12h 34m13h 0m13h 13m13h 6m12h 43m12h 12m11h 41m11h 14m11h 0m

Solar UV radiation in Monterrey, Mexico

Monterrey experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 15 - 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 Monterrey UV Index data.

Average daily maximum UV levels by month for Monterrey. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)10121415141515141412109