nomadseason

December Weather in La Mesa, Mexico

Last updated: August 27, 2025

In La Mesa, Mexico, the average temperature in December is a pleasant 10°C (50°F). During this time, temperatures can dip as low as -3°C (26°F) or rise to a comfortable 24°C (76°F). Expect about 27 mm (1.1 in) of precipitation over 4 days, contributing to an average humidity of 81%. Whether you're packing for warmth or planning for rain, it's a month where variety is the norm!

December Temperature in La Mesa

In December in La Mesa, the average temperature is 10°C (50°F). The maximum can reach 24°C (76°F) and the minimum can be as low as -3°C (26°F). Be prepared for a wide range of temperatures when traveling to La Mesa during this month.

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

The chart illustrates December 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, December typically has an average temperature of 10°C (50°F), with highs reaching up to 24°C (76°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec495056657181797875685950
Data source: Temperature data for La Mesa 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.

December Precipitation in La Mesa

In La Mesa in December, the total precipitation amount is 27 mm (1.1 in) over a span of 4 days.

December Precipitation Trends in La Mesa

The chart displays monthly precipitation patterns in La Mesa, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In La Mesa, December typically receives around 27 mm (1.1 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec35422543101199153143027
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in La Mesa

In La Mesa in December humidity is 81%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable and might leave travelers feeling heavy and lethargic as the moisture clings to their skin.

December Average Humidity in La Mesa

This chart illustrates the average monthly humidity levels in La Mesa, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in La Mesa is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%71%60%43%32%28%38%60%72%66%74%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in La Mesa

In La Mesa in December, 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 December

The chart shows the monthly maximum UV Index (UVI) for La Mesa in December, 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 December, the maximum UV index in La Mesa typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5710121213121211965
Data source: La Mesa December 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 December 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 December’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 December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (49°F)35 mm (1.4 inches)74%moderate
February Weather10°C (50°F)42 mm (1.6 inches)71%high
March Weather14°C (57°F)25 mm (1.0 inches)60%very high
April Weather18°C (65°F)4 mm (0.2 inches)43%extreme
May Weather22°C (72°F)3 mm (0.1 inches)32%extreme
June Weather27°C (82°F)10 mm (0.4 inches)28%extreme
July Weather26°C (79°F)119 mm (4.7 inches)38%extreme
August Weather26°C (78°F)91 mm (3.6 inches)60%extreme
September Weather24°C (76°F)53 mm (2.1 inches)72%extreme
October Weather20°C (68°F)14 mm (0.6 inches)66%very high
November Weather15°C (60°F)30 mm (1.2 inches)74%high
December Weather10°C (50°F)27 mm (1.1 inches)81%moderate

Compare La Mesa's Climate with Cities Worldwide