January Weather in La Mesa, Mexico

Last updated: August 27, 2025

In January, the average temperature in La Mesa, Mexico hovers around 11°C (51°F). While chilly nights can dip to a brisk -4°C (24°F), the sunny days may warm up to a pleasant 29°C (84°F). Expect 6 mm (0.2 in) of rainfall spread over 1 day, contributing to an average humidity of around 78%. Embrace the variety this month offers!

January Temperature in La Mesa

In January in La Mesa, the average temperature is 11°C (51°F). Maximum temperatures can reach 29°C (84°F), while minimum temperatures can drop to as low as -4°C (24°F). This diverse range of temperatures makes it essential for travelers to pack accordingly, ensuring comfort for both warm and chilly moments.

January Weather in La Mesa: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in La Mesa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Mesa, January typically has an average temperature of 11°C (51°F), with highs reaching up to 29°C (84°F) and lows dropping to around -4°C (24°F).

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

January Precipitation in La Mesa

In La Mesa in January, the precipitation amount is 6 mm (0.2 in) over the course of 1 day.

January Precipitation Trends in La Mesa

The chart displays monthly precipitation patterns in La Mesa, 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 La Mesa, January typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 1 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 La Mesa

In La Mesa in January, humidity is 78%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill that lingers in the air, making outdoor activities less inviting and leading to a persistent sense of coolness that can be invigorating yet uncomfortable for travelers.

January Average Humidity in La Mesa

This chart illustrates the average monthly humidity levels in La Mesa, 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 La Mesa is approximately 78%, 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 La Mesa

In La Mesa in January, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in La Mesa, you can refer to this Hourly UV Index in La Mesa.

Maximum UV Index Levels in La Mesa for January

The chart shows the monthly maximum UV Index (UVI) for La Mesa 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 La Mesa typically reaches 6, which falls under the high exposure category.

Data source: La Mesa 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 La Mesa Compares to Other Months

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

This table compares monthly weather conditions in La Mesa, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (51°F)	6 mm (0.2 inches)	78%	high
February Weather	14°C (57°F)	6 mm (0.2 inches)	71%	very high
March Weather	18°C (64°F)	3 mm (0.1 inches)	60%	extreme
April Weather	22°C (72°F)	3 mm (0.1 inches)	52%	extreme
May Weather	26°C (79°F)	6 mm (0.2 inches)	49%	extreme
June Weather	29°C (84°F)	24 mm (0.9 inches)	50%	extreme
July Weather	27°C (81°F)	50 mm (2.0 inches)	65%	extreme
August Weather	27°C (80°F)	41 mm (1.6 inches)	70%	extreme
September Weather	24°C (75°F)	64 mm (2.5 inches)	79%	extreme
October Weather	20°C (69°F)	24 mm (1.0 inches)	77%	very high
November Weather	16°C (60°F)	14 mm (0.5 inches)	83%	very high
December Weather	11°C (52°F)	15 mm (0.6 inches)	84%	high