December Weather in Copala, Mexico

Last updated: August 27, 2025

In December, the average temperature in Copala, Mexico is a pleasant 18°C (65°F). You'll experience minimums dipping to 5°C (41°F) and maximums soaring up to 31°C (88°F). Be prepared for some rain, as 28 mm (1.1 in) of precipitation is expected over the course of just 1 day. The air will feel quite humid, with an average humidity of 78%, adding to the overall atmosphere of the season.

December Temperature in Copala

In December in Copala, the average temperature is 18°C (65°F). The maximum can reach 31°C (88°F), while the minimum can drop as low as 5°C (41°F). This makes it a great time to visit, as you can enjoy warm days and cool evenings.

December Weather in Copala: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Copala, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Copala, December typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (88°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec636569717577767675746964
Data source: Temperature data for Copala generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Copala

In Copala in December, the total precipitation amount is 28 mm (1.1 in) over a duration of 1 day.

December Precipitation Trends in Copala

The chart displays monthly precipitation patterns in Copala, 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 Copala, December typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec1428113982613342251031328
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Copala

In Copala in December, humidity is 78%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel quite muggy and potentially uncomfortable, as it can leave you feeling sticky and fatigued more quickly than usual.

December Average Humidity in Copala

This chart illustrates the average monthly humidity levels in Copala, 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 Copala is approximately 78%, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Copala

In Copala in December, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Copala.

Maximum UV Index Levels in Copala for December

The chart shows the monthly maximum UV Index (UVI) for Copala 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 Copala typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111413131313121187
Data source: Copala 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 Copala Compares to Other Months

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

This table compares monthly weather conditions in Copala, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (64°F)14 mm (0.5 inches)74%high
February Weather19°C (66°F)28 mm (1.1 inches)66%very high
March Weather20°C (69°F)1 mm (0.1 inches)61%extreme
April Weather22°C (71°F)1 mm (0.0 inches)56%extreme
May Weather24°C (75°F)3 mm (0.1 inches)61%extreme
June Weather25°C (77°F)98 mm (3.9 inches)73%extreme
July Weather24°C (76°F)261 mm (10.3 inches)82%extreme
August Weather24°C (76°F)334 mm (13.2 inches)83%extreme
September Weather24°C (75°F)225 mm (8.9 inches)83%extreme
October Weather23°C (74°F)103 mm (4.0 inches)78%extreme
November Weather21°C (69°F)13 mm (0.5 inches)77%very high
December Weather18°C (65°F)28 mm (1.1 inches)78%high

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