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Monthly climate in Fronteras, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Fronteras features a cold semi-arid climate (BSk). Temperatures typically range between 10 °C (50 °F) and 29 °C (85 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 43 °C (109 °F). The average annual precipitation amounts to about 313 mm (12.3 inches) and receives 48 rainy days on the 1 mm (0.04 inches) threshold annually. Fronteras enjoys an average of 3632 hours of sunshine throughout the year, and daylight varies from 10 hours 9 minutes to 14 hours 6 minutes per day.

Monthly average temperatures in Fronteras, Mexico

The warmest months in Fronteras are June, July and August, with daily mean temperatures ranging from 27 to 29 °C (82 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 12 °C (50 - 53 °F) throughout the day. On average each year, Fronteras experiences 202 days above 25 °C (77.0 °F) and 12 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Fronteras. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum26°C
(78°F)		30°C
(86°F)		31°C
(88°F)		35°C
(96°F)		38°C
(101°F)		43°C
(109°F)		42°C
(108°F)		40°C
(104°F)		38°C
(100°F)		35°C
(96°F)		31°C
(89°F)		24°C
(76°F)
Mean maximum24°C
(75°F)		26°C
(78°F)		30°C
(86°F)		34°C
(93°F)		37°C
(98°F)		40°C
(105°F)		40°C
(105°F)		38°C
(102°F)		36°C
(97°F)		33°C
(93°F)		29°C
(84°F)		24°C
(75°F)
Average high18°C
(64°F)		20°C
(67°F)		23°C
(74°F)		28°C
(83°F)		32°C
(90°F)		37°C
(99°F)		35°C
(95°F)		34°C
(94°F)		32°C
(90°F)		28°C
(83°F)		24°C
(75°F)		18°C
(64°F)
Daily mean10°C
(50°F)		12°C
(53°F)		15°C
(60°F)		20°C
(69°F)		24°C
(76°F)		29°C
(85°F)		28°C
(83°F)		27°C
(82°F)		25°C
(78°F)		21°C
(70°F)		15°C
(60°F)		10°C
(51°F)
Average low3°C
(38°F)		5°C
(40°F)		8°C
(46°F)		12°C
(53°F)		15°C
(59°F)		21°C
(70°F)		22°C
(73°F)		22°C
(71°F)		19°C
(67°F)		14°C
(57°F)		9°C
(48°F)		4°C
(40°F)
Mean minimum-3°C
(26°F)		-2°C
(28°F)		1°C
(35°F)		5°C
(42°F)		10°C
(50°F)		16°C
(61°F)		19°C
(67°F)		19°C
(67°F)		15°C
(60°F)		5°C
(42°F)		3°C
(37°F)		-2°C
(29°F)
Minimum-5°C
(24°F)		-5°C
(23°F)		-1°C
(31°F)		4°C
(39°F)		7°C
(45°F)		14°C
(58°F)		18°C
(64°F)		18°C
(64°F)		12°C
(55°F)		1°C
(34°F)		-0°C
(32°F)		-3°C
(27°F)

Compare climate in Fronteras with other places

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

Monthly average precipitation in Fronteras, Mexico

Fronteras usually has the most precipitation in July, August and September, with an average of 9 rainy days and 51 mm (2.0 inches) of precipitation per month. The driest months in Fronteras are April, May and June. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Fronteras. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)25 (1.0)24 (1.0)22 (0.9)3 (0.1)2 (0.1)8 (0.3)56 (2.2)61 (2.4)36 (1.4)15 (0.6)32 (1.3)28 (1.1)
Average precipitation days (≥ 1 mm)34210212115233

Monthly sunshine hours in Fronteras, Mexico

The sunniest months in Fronteras are May, June and July, when the sun shines an average of 11 hours 48 minutes a day. Least sunny months in Fronteras: January, February and December receive an average of 7 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Fronteras. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours206248300335372366347330306303263250
Mean daily daylight hours10h 23m11h 5m12h 0m12h 56m13h 43m14h 6m13h 53m13h 12m12h 18m11h 22m10h 34m10h 9m

Solar UV radiation in Fronteras, Mexico

Fronteras experiences the highest level of ultraviolet (UV) radiation in April, June and August, when the maximum UV index can reach values of 12 - 13, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Fronteras UV Index data.

Average daily maximum UV levels by month for Fronteras. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)5810121213121211965