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Monthly climate in San Bernardo, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Bernardo features a cold semi-arid climate (BSk). Temperatures typically range between 11 °C (51 °F) and 25 °C (77 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 37 °C (100 °F). The average annual precipitation amounts to about 420 mm (16.5 inches) and receives 56 rainy days on the 1 mm (0.04 inches) threshold annually. San Bernardo enjoys an average of 3596 hours of sunshine throughout the year, and daylight varies from 10 hours 31 minutes to 13 hours 43 minutes per day.

Monthly average temperatures in San Bernardo, Mexico

The warmest months in San Bernardo are May, June and August, with daily mean temperatures ranging from 22 to 25 °C (72 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 13 °C (51 - 55 °F) throughout the day. On average each year, San Bernardo experiences 206 days above 25 °C (77.0 °F) and 18 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 Bernardo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(80°F)		30°C
(86°F)		36°C
(97°F)		34°C
(94°F)		37°C
(100°F)		37°C
(99°F)		35°C
(95°F)		35°C
(95°F)		32°C
(90°F)		31°C
(88°F)		30°C
(87°F)		28°C
(82°F)
Mean maximum25°C
(77°F)		28°C
(83°F)		31°C
(88°F)		33°C
(91°F)		35°C
(96°F)		35°C
(96°F)		34°C
(93°F)		32°C
(89°F)		31°C
(88°F)		29°C
(85°F)		28°C
(83°F)		26°C
(79°F)
Average high20°C
(69°F)		22°C
(73°F)		26°C
(79°F)		29°C
(84°F)		31°C
(89°F)		32°C
(90°F)		29°C
(84°F)		29°C
(84°F)		26°C
(79°F)		26°C
(78°F)		24°C
(75°F)		20°C
(69°F)
Daily mean11°C
(51°F)		13°C
(55°F)		16°C
(61°F)		19°C
(67°F)		22°C
(72°F)		25°C
(77°F)		22°C
(72°F)		22°C
(73°F)		20°C
(68°F)		18°C
(64°F)		15°C
(59°F)		11°C
(52°F)
Average low2°C
(36°F)		4°C
(40°F)		7°C
(44°F)		10°C
(50°F)		13°C
(55°F)		17°C
(63°F)		16°C
(61°F)		16°C
(61°F)		14°C
(58°F)		11°C
(51°F)		7°C
(44°F)		3°C
(37°F)
Mean minimum-4°C
(26°F)		-2°C
(29°F)		2°C
(35°F)		4°C
(39°F)		7°C
(45°F)		13°C
(56°F)		14°C
(57°F)		13°C
(56°F)		11°C
(51°F)		5°C
(41°F)		1°C
(33°F)		-4°C
(26°F)
Minimum-5°C
(23°F)		-5°C
(24°F)		-0°C
(32°F)		2°C
(36°F)		5°C
(41°F)		12°C
(54°F)		12°C
(54°F)		10°C
(50°F)		9°C
(49°F)		3°C
(37°F)		-4°C
(25°F)		-5°C
(23°F)

Compare climate in San Bernardo with other places

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

Monthly average precipitation in San Bernardo, Mexico

San Bernardo usually has the most precipitation in July, August and September, with an average of 12 rainy days and 98 mm (3.9 inches) of precipitation per month. The driest months in San Bernardo are January, March and April. On average, 3 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Bernardo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)3 (0.1)7 (0.3)4 (0.2)3 (0.1)9 (0.3)33 (1.3)110 (4.3)66 (2.6)119 (4.7)42 (1.7)12 (0.5)12 (0.5)
Average precipitation days (≥ 1 mm)011024131015622

Monthly sunshine hours in San Bernardo, Mexico

The sunniest months in San Bernardo are May, June and July, when the sun shines an average of 11 hours 14 minutes a day. Least sunny months in San Bernardo: January, February and November receive an average of 8 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Bernardo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours224265310321354338341336277285268271
Mean daily daylight hours10h 42m11h 16m12h 1m12h 47m13h 25m13h 43m13h 33m12h 59m12h 15m11h 30m10h 51m10h 31m

Solar UV radiation in San Bernardo, Mexico

San Bernardo experiences the highest level of ultraviolet (UV) radiation in April, May and July, when the maximum UV index can reach values of 14 - 14, 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 Bernardo UV Index data.

Average daily maximum UV levels by month for San Bernardo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)711121414141413131187