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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 24 °C (76 °F) and 28 °C (83 °F) through the year, but rarely can drop to 12 °C (54 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 772 mm (30.4 inches) and receives 94 rainy days on the 1 mm (0.04 inches) threshold annually. San Jeronimo enjoys an average of 3500 hours of sunshine throughout the year, and daylight varies from 11 hours 1 minutes to 13 hours 12 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 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 24 to 25 °C (76 - 78 °F) throughout the day. On average each year, San Jeronimo experiences 327 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
Maximum36°C
(97°F)		37°C
(98°F)		38°C
(101°F)		39°C
(103°F)		40°C
(104°F)		39°C
(102°F)		38°C
(101°F)		37°C
(98°F)		36°C
(97°F)		35°C
(96°F)		36°C
(97°F)		35°C
(96°F)
Mean maximum35°C
(95°F)		36°C
(97°F)		38°C
(100°F)		39°C
(102°F)		39°C
(103°F)		38°C
(100°F)		36°C
(97°F)		36°C
(97°F)		35°C
(95°F)		34°C
(94°F)		34°C
(94°F)		34°C
(93°F)
Average high32°C
(90°F)		34°C
(93°F)		36°C
(97°F)		37°C
(98°F)		37°C
(99°F)		34°C
(93°F)		33°C
(91°F)		32°C
(91°F)		32°C
(89°F)		32°C
(89°F)		32°C
(90°F)		32°C
(90°F)
Daily mean25°C
(77°F)		25°C
(78°F)		27°C
(81°F)		28°C
(82°F)		28°C
(83°F)		28°C
(82°F)		27°C
(81°F)		27°C
(81°F)		26°C
(79°F)		26°C
(79°F)		25°C
(78°F)		24°C
(76°F)
Average low18°C
(65°F)		19°C
(66°F)		20°C
(68°F)		20°C
(69°F)		22°C
(71°F)		23°C
(74°F)		23°C
(73°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		20°C
(68°F)		18°C
(65°F)
Mean minimum15°C
(58°F)		15°C
(60°F)		17°C
(64°F)		17°C
(63°F)		18°C
(65°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		20°C
(68°F)		17°C
(63°F)		15°C
(60°F)
Minimum13°C
(56°F)		12°C
(54°F)		16°C
(60°F)		16°C
(61°F)		18°C
(64°F)		19°C
(67°F)		21°C
(70°F)		20°C
(68°F)		20°C
(69°F)		19°C
(66°F)		14°C
(58°F)		14°C
(57°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 July, August and September, with an average of 20 rainy days and 159 mm (6.3 inches) of precipitation per month. The driest months in San Jeronimo are January, March and April. On average, 1 mm (0.0 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)1 (0.0)1 (0.1)1 (0.0)0 (0.0)16 (0.6)102 (4.0)139 (5.5)169 (6.7)170 (6.7)135 (5.3)33 (1.3)3 (0.1)
Average precipitation days (≥ 1 mm)00003131921201440

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 39 minutes a day. Least sunny months in San Jeronimo: January, September and October receive an average of 8 hours 34 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 hours241277320324335287308286270277281290
Mean daily daylight hours11h 8m11h 32m12h 2m12h 33m12h 59m13h 12m13h 5m12h 42m12h 12m11h 41m11h 14m11h 1m

Solar UV radiation in San Jeronimo, Mexico

San Jeronimo experiences the highest level of ultraviolet (UV) radiation in May, June 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 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)911131314141413131188