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Monthly climate in San Jeronimo, Mexico

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification San Jeronimo features a tropical savanna climate (Aw). Temperatures typically range between 22 °C (73 °F) and 30 °C (86 °F) through the year, but rarely can drop to 11 °C (53 °F) or can rise to as high as 42 °C (108 °F). The average annual precipitation amounts to about 1838 mm (72.4 inches) and receives 176 rainy days on the 1 mm (0.04 inches) threshold annually. San Jeronimo enjoys an average of 3253 hours of sunshine throughout the year, and daylight varies from 11 hours 3 minutes to 13 hours 10 minutes per day.

Monthly average temperatures in San Jeronimo, Mexico

The warmest months in San Jeronimo are April, May and June, with daily mean temperatures ranging from 28 to 30 °C (83 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 22 to 24 °C (73 - 75 °F) throughout the day. On average each year, San Jeronimo experiences 302 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 Jeronimo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum35°C
(95°F)		37°C
(98°F)		39°C
(102°F)		42°C
(108°F)		41°C
(106°F)		39°C
(102°F)		37°C
(98°F)		37°C
(98°F)		37°C
(100°F)		36°C
(97°F)		35°C
(95°F)		34°C
(94°F)
Mean maximum33°C
(92°F)		35°C
(94°F)		38°C
(101°F)		40°C
(105°F)		40°C
(104°F)		36°C
(97°F)		36°C
(96°F)		35°C
(96°F)		36°C
(96°F)		35°C
(95°F)		32°C
(91°F)		32°C
(91°F)
Average high27°C
(80°F)		29°C
(84°F)		31°C
(88°F)		34°C
(94°F)		35°C
(96°F)		33°C
(92°F)		33°C
(91°F)		33°C
(91°F)		32°C
(91°F)		31°C
(88°F)		28°C
(83°F)		27°C
(81°F)
Daily mean22°C
(73°F)		24°C
(75°F)		26°C
(79°F)		28°C
(83°F)		30°C
(86°F)		28°C
(84°F)		28°C
(83°F)		28°C
(82°F)		28°C
(82°F)		27°C
(80°F)		24°C
(76°F)		23°C
(73°F)
Average low19°C
(66°F)		19°C
(67°F)		21°C
(70°F)		23°C
(74°F)		25°C
(78°F)		25°C
(77°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)		20°C
(69°F)		19°C
(66°F)
Mean minimum14°C
(58°F)		14°C
(57°F)		17°C
(62°F)		19°C
(66°F)		22°C
(72°F)		23°C
(73°F)		22°C
(72°F)		23°C
(73°F)		22°C
(72°F)		20°C
(69°F)		16°C
(62°F)		13°C
(56°F)
Minimum11°C
(53°F)		11°C
(53°F)		13°C
(56°F)		17°C
(63°F)		20°C
(68°F)		22°C
(72°F)		21°C
(71°F)		22°C
(72°F)		21°C
(71°F)		18°C
(65°F)		14°C
(57°F)		12°C
(54°F)

Compare climate in San Jeronimo with other places

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

Monthly average precipitation in San Jeronimo, Mexico

San Jeronimo usually has the most precipitation in June, August and September, with an average of 24 rainy days and 317 mm (12.5 inches) of precipitation per month. The driest months in San Jeronimo are March, April and December. On average, 33 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in San Jeronimo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)49 (1.9)45 (1.8)26 (1.0)31 (1.2)80 (3.1)299 (11.8)232 (9.1)294 (11.6)357 (14.1)257 (10.1)126 (5.0)42 (1.7)
Average precipitation days (≥ 1 mm)9766112324252521127

Monthly sunshine hours in San Jeronimo, Mexico

The sunniest months in San Jeronimo are May, July and August, when the sun shines an average of 10 hours 7 minutes a day. Least sunny months in San Jeronimo: January, February and December receive an average of 7 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in San Jeronimo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours175225291301324279313303280262250244
Mean daily daylight hours11h 10m11h 33m12h 2m12h 33m12h 58m13h 10m13h 3m12h 41m12h 12m11h 42m11h 16m11h 3m

Solar UV radiation in San Jeronimo, Mexico

San Jeronimo experiences the highest level of ultraviolet (UV) radiation in April, July and September, when the maximum UV index can reach values of 13 - 14, 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 9. For more detailed information, check out our hourly San Jeronimo UV Index data.

Average daily maximum UV levels by month for San Jeronimo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)911121313131412131198