nomadseason

January Weather in San Jeronimo, Mexico

Last updated: August 27, 2025

In San Jeronimo, Mexico, the average temperature in January hovers around 9°C (48°F), with fluctuations ranging from a chilly -7°C (19°F) to a warm 22°C (72°F). During this month, expect about 31 mm (1.2 in) of precipitation over approximately 3 days, contributing to an average humidity of 74%. Whether you're bracing for cold snaps or mild days, be prepared for a variable climate!

January Temperature in San Jeronimo

In January in San Jeronimo, the average temperature is 9°C (48°F), with maximums reaching 22°C (72°F) and minimums dipping as low as -7°C (19°F). It's a good time to visit if you enjoy cool weather with the possibility of warmer days, but make sure to pack layers for those chillier moments.

January Weather in San Jeronimo: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Jeronimo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jeronimo, January typically has an average temperature of 9°C (48°F), with highs reaching up to 22°C (72°F) and lows dropping to around -7°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec485055586264626361605549
Data source: Temperature data for San Jeronimo generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in San Jeronimo

In San Jeronimo in January, the precipitation amount is 31 mm (1.2 in) over the course of 3 days.

January Precipitation Trends in San Jeronimo

The chart displays monthly precipitation patterns in San Jeronimo, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In San Jeronimo, January typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec3145118311703572722411183853
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in San Jeronimo

In San Jeronimo in January humidity is 74%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating warm layers to fully enjoy your explorations.

January Average Humidity in San Jeronimo

This chart illustrates the average monthly humidity levels in San Jeronimo, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in San Jeronimo is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%66%61%56%61%73%82%83%83%79%77%78%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Jeronimo

In San Jeronimo in January, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in San Jeronimo.

Maximum UV Index Levels in San Jeronimo for January

The chart shows the monthly maximum UV Index (UVI) for San Jeronimo in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in San Jeronimo typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec811121414131313131297
Data source: San Jeronimo January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How January Weather in San Jeronimo Compares to Other Months

Weather in San Jeronimo varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in San Jeronimo, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in San Jeronimo, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)31 mm (1.2 inches)74%very high
February Weather10°C (51°F)45 mm (1.8 inches)66%extreme
March Weather13°C (55°F)11 mm (0.4 inches)61%extreme
April Weather14°C (58°F)8 mm (0.3 inches)56%extreme
May Weather17°C (62°F)30 mm (1.2 inches)61%extreme
June Weather18°C (64°F)170 mm (6.7 inches)73%extreme
July Weather16°C (62°F)357 mm (14.0 inches)82%extreme
August Weather17°C (63°F)272 mm (10.7 inches)83%extreme
September Weather16°C (62°F)241 mm (9.5 inches)83%extreme
October Weather16°C (60°F)117 mm (4.6 inches)78%extreme
November Weather13°C (55°F)38 mm (1.5 inches)77%very high
December Weather10°C (49°F)52 mm (2.1 inches)78%high

Compare San Jeronimo's Climate with Cities Worldwide