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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 21 °C (70 °F) and 24 °C (76 °F) through the year, but rarely can drop to 7 °C (45 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 2305 mm (90.7 inches) and receives 171 rainy days on the 1 mm (0.04 inches) threshold annually. San Jeronimo enjoys an average of 3413 hours of sunshine throughout the year, and daylight varies from 11 hours 7 minutes to 13 hours 6 minutes per day.

Monthly average temperatures in San Jeronimo, Mexico

The warmest months in San Jeronimo are March, April and May, with daily mean temperatures ranging from 23 to 24 °C (73 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 21 to 21 °C (70 - 71 °F) throughout the day. On average each year, San Jeronimo experiences 318 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
Maximum32°C
(89°F)		33°C
(92°F)		34°C
(93°F)		34°C
(94°F)		34°C
(93°F)		31°C
(88°F)		31°C
(88°F)		30°C
(86°F)		30°C
(87°F)		31°C
(87°F)		31°C
(89°F)		31°C
(87°F)
Mean maximum30°C
(86°F)		32°C
(89°F)		33°C
(91°F)		34°C
(93°F)		33°C
(91°F)		29°C
(84°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		29°C
(85°F)		30°C
(86°F)		29°C
(85°F)
Average high28°C
(82°F)		29°C
(84°F)		30°C
(87°F)		31°C
(88°F)		30°C
(87°F)		27°C
(81°F)		28°C
(83°F)		27°C
(82°F)		27°C
(81°F)		27°C
(82°F)		28°C
(82°F)		27°C
(81°F)
Daily mean21°C
(70°F)		21°C
(71°F)		23°C
(73°F)		24°C
(75°F)		24°C
(76°F)		22°C
(73°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		21°C
(70°F)
Average low14°C
(58°F)		14°C
(58°F)		15°C
(60°F)		17°C
(62°F)		19°C
(66°F)		19°C
(66°F)		18°C
(65°F)		19°C
(66°F)		19°C
(66°F)		18°C
(65°F)		17°C
(62°F)		15°C
(59°F)
Mean minimum11°C
(51°F)		11°C
(53°F)		13°C
(56°F)		13°C
(57°F)		16°C
(60°F)		17°C
(62°F)		16°C
(61°F)		17°C
(62°F)		16°C
(62°F)		15°C
(60°F)		13°C
(56°F)		12°C
(54°F)
Minimum8°C
(46°F)		7°C
(45°F)		12°C
(54°F)		11°C
(53°F)		15°C
(59°F)		16°C
(61°F)		15°C
(60°F)		16°C
(61°F)		16°C
(61°F)		13°C
(55°F)		12°C
(54°F)		10°C
(50°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 28 rainy days and 464 mm (18.3 inches) of precipitation per month. The driest months in San Jeronimo are January, February and March. On average, 5 mm (0.2 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)5 (0.2)2 (0.1)7 (0.3)12 (0.5)118 (4.7)432 (17.0)310 (12.2)437 (17.2)522 (20.6)391 (15.4)46 (1.8)22 (0.9)
Average precipitation days (≥ 1 mm)1012142727292828113

Monthly sunshine hours in San Jeronimo, Mexico

The sunniest months in San Jeronimo are March, April and May, when the sun shines an average of 10 hours 22 minutes a day. Least sunny months in San Jeronimo: January, June and September receive an average of 8 hours 14 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 hours239278320318315258294272251272293298
Mean daily daylight hours11h 14m11h 35m12h 2m12h 31m12h 54m13h 6m13h 0m12h 39m12h 11m11h 43m11h 19m11h 7m

Solar UV radiation in San Jeronimo, Mexico

San Jeronimo 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 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)10121415151414141412109