January Weather in Mexico, United States

Last updated: June 24, 2025

In January, the average temperature in Mexico, United States is a chilly -4°C (26°F), with temperatures ranging from a minimum of -21°C (-6°F) to a maximum of 15°C (59°F). Expect 108 mm (4.3 in) of precipitation spread over 16 days, and brace yourself for high humidity levels averaging around 90%.

January Temperature in Mexico

In January in Mexico, the average temperature is -4°C (26°F). Maximums can reach 15°C (59°F) and minimums can be as low as -21°C (-6°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.

January Weather in Mexico: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Mexico, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mexico, January typically has an average temperature of -4°C (26°F), with highs reaching up to 15°C (59°F) and lows dropping to around -21°C (-6°F).

Data source: Temperature data for Mexico generated using information from the Copernicus Climate Change Service.

January Precipitation in Mexico

In Mexico in January, the total precipitation amount is 108 mm (4.3 in), which falls over the course of 16 days.

January Precipitation Trends in Mexico

The chart displays monthly precipitation patterns in Mexico, 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 Mexico, January typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 16 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Mexico

In Mexico in January, humidity is 90%. With an average temperature of -4°C (26°F), this humidity feels like stepping into a frigid sauna, where even the slightest breeze cuts through the chill, making travel feel like an arduous trek through a frozen mist.

January Average Humidity in Mexico

This chart illustrates the average monthly humidity levels in Mexico, 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 Mexico is approximately 90%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Mexico

In Mexico in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Mexico, you can visit Hourly UV Index in Mexico.

Maximum UV Index Levels in Mexico for January

The chart shows the monthly maximum UV Index (UVI) for Mexico 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 Mexico typically reaches 2, which falls under the low exposure category.

Data source: Mexico 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 Mexico Compares to Other Months

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

This table compares monthly weather conditions in Mexico, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	108 mm (4.3 inches)	90%	low
February Weather	-3°C (28°F)	107 mm (4.2 inches)	90%	moderate
March Weather	1°C (34°F)	95 mm (3.8 inches)	87%	high
April Weather	7°C (44°F)	130 mm (5.1 inches)	88%	very high
May Weather	13°C (56°F)	121 mm (4.8 inches)	82%	very high
June Weather	18°C (65°F)	97 mm (3.8 inches)	79%	very high
July Weather	22°C (72°F)	176 mm (6.9 inches)	78%	very high
August Weather	22°C (71°F)	117 mm (4.6 inches)	76%	very high
September Weather	18°C (64°F)	92 mm (3.6 inches)	78%	high
October Weather	12°C (54°F)	182 mm (7.2 inches)	84%	moderate
November Weather	4°C (40°F)	132 mm (5.2 inches)	89%	moderate
December Weather	0°C (32°F)	133 mm (5.3 inches)	86%	low