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December Weather in Coyame, Mexico

Last updated: August 27, 2025

In December, the average temperature in Coyame, Mexico is a mild 12°C (54°F). Expect a wide range of temperatures, with minimums dipping to -3°C (26°F) and maximums soaring to 29°C (84°F). Additionally, there will be a light precipitation amount of 17 mm (0.7 in) spread over just 2 days, and you can anticipate an average humidity of 84%.

December Temperature in Coyame

In December in Coyame, the average temperature is 12°C (54°F), with maximums reaching 29°C (84°F) and minimums dropping as low as -3°C (26°F). This variation makes it essential for travelers to pack accordingly, ensuring they're prepared for both warm and cool conditions.

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

The chart illustrates December temperature patterns in Coyame, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coyame, December typically has an average temperature of 12°C (54°F), with highs reaching up to 29°C (84°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec515866748286858478726154
Data source: Temperature data for Coyame 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 Coyame

In Coyame in December, the precipitation amount is 17 mm (0.7 in) over a span of 2 days.

December Precipitation Trends in Coyame

The chart displays monthly precipitation patterns in Coyame, 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 Coyame, December typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec10939525252636111017
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Coyame

In Coyame in December, humidity is 84%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel uncomfortable and sticky.

December Average Humidity in Coyame

This chart illustrates the average monthly humidity levels in Coyame, 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 Coyame is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%71%60%52%49%50%65%70%79%77%83%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Coyame

In Coyame in December, 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 Coyame, you can refer to this Hourly UV Index in Coyame.

Maximum UV Index Levels in Coyame for December

The chart shows the monthly maximum UV Index (UVI) for Coyame 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 Coyame typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec68101313131312121076
Data source: Coyame 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 Coyame Compares to Other Months

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

This table compares monthly weather conditions in Coyame, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)10 mm (0.4 inches)78%high
February Weather14°C (58°F)9 mm (0.3 inches)71%very high
March Weather19°C (67°F)3 mm (0.1 inches)60%very high
April Weather23°C (74°F)9 mm (0.3 inches)52%extreme
May Weather28°C (82°F)5 mm (0.2 inches)49%extreme
June Weather30°C (87°F)25 mm (1.0 inches)50%extreme
July Weather29°C (85°F)25 mm (1.0 inches)65%extreme
August Weather29°C (84°F)26 mm (1.0 inches)70%extreme
September Weather26°C (79°F)36 mm (1.4 inches)79%extreme
October Weather22°C (72°F)11 mm (0.4 inches)77%very high
November Weather16°C (62°F)10 mm (0.4 inches)83%high
December Weather12°C (54°F)17 mm (0.7 inches)84%high

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