January Weather in La Mesa, Mexico

Last updated: August 27, 2025

In January, the average temperature in La Mesa, Mexico hovers around 10°C (49°F). Expect a range where the minimum can dip to -6°C (21°F), while the maximum may reach 25°C (77°F). During this month, precipitation averages about 35 mm (1.4 in), typically spread across 4 days, with an average humidity of 74%.

January Temperature in La Mesa

In January in La Mesa, the average temperature is 10°C (49°F). Maximum temperatures can reach 25°C (77°F), while minimum temperatures can dip as low as -6°C (21°F). This range makes La Mesa a versatile destination for travelers, so be prepared for both warm days and cooler nights.

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 10°C (49°F), with highs reaching up to 25°C (77°F) and lows dropping to around -6°C (21°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 35 mm (1.4 in) over a span of 4 days.

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 35 mm (1.4 inches) of precipitation spread over approximately 4 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in La Mesa

In La Mesa in January humidity is 74%. With an average temperature of 10°C (49°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and prompting you to seek warmth and cozy shelter more often.

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 74%, 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 reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the 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 5, which falls under the moderate 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	10°C (49°F)	35 mm (1.4 inches)	74%	moderate
February Weather	10°C (50°F)	42 mm (1.6 inches)	71%	high
March Weather	14°C (57°F)	25 mm (1.0 inches)	60%	very high
April Weather	18°C (65°F)	4 mm (0.2 inches)	43%	extreme
May Weather	22°C (72°F)	3 mm (0.1 inches)	32%	extreme
June Weather	27°C (82°F)	10 mm (0.4 inches)	28%	extreme
July Weather	26°C (79°F)	119 mm (4.7 inches)	38%	extreme
August Weather	26°C (78°F)	91 mm (3.6 inches)	60%	extreme
September Weather	24°C (76°F)	53 mm (2.1 inches)	72%	extreme
October Weather	20°C (68°F)	14 mm (0.6 inches)	66%	very high
November Weather	15°C (60°F)	30 mm (1.2 inches)	74%	high
December Weather	10°C (50°F)	27 mm (1.1 inches)	81%	moderate