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December Weather in Marana, United States

Last updated: June 24, 2025

In December, the average temperature in Marana, United States is 12°C (55°F). During this time, temperatures can range from a minimum of -2°C (29°F) to a maximum of 27°C (81°F). Expect moderate precipitation of 26 mm (1.0 in) over approximately 4 days, and a noteworthy average humidity level of 82%.

December Temperature in Marana

In December in Marana, the average temperature is 12°C (55°F). Maximum temperatures can reach 27°C (81°F) and minimums can drop as low as -2°C (29°F). Make sure to pack layers to comfortably enjoy the varied weather during your travels.

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

The chart illustrates December temperature patterns in Marana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marana, December typically has an average temperature of 12°C (55°F), with highs reaching up to 27°C (81°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec535663727989909085746554
Data source: Temperature data for Marana 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 Marana

In Marana in December, the precipitation amount is 26 mm (1.0 in) over the course of 4 days.

December Precipitation Trends in Marana

The chart displays monthly precipitation patterns in Marana, 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 Marana, December typically receives around 26 mm (1.0 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec263116227523926101726
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Marana

In Marana in December, humidity is 82%. With an average temperature of 12°C (55°F), this humidity feels like a heavy blanket wrapping around you, making even a simple walk feel laborious and sticky, which can be quite exhausting for traveling.

December Average Humidity in Marana

This chart illustrates the average monthly humidity levels in Marana, 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 Marana is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%79%67%55%40%33%34%48%64%67%77%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Marana

In Marana in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Marana for better planning.

Maximum UV Index Levels in Marana for December

The chart shows the monthly maximum UV Index (UVI) for Marana 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 Marana typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111212121111864
Data source: Marana 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 Marana Compares to Other Months

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

This table compares monthly weather conditions in Marana, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)26 mm (1.0 inches)76%moderate
February Weather13°C (56°F)31 mm (1.2 inches)79%high
March Weather17°C (63°F)16 mm (0.6 inches)67%very high
April Weather22°C (73°F)2 mm (0.1 inches)55%extreme
May Weather26°C (79°F)2 mm (0.1 inches)40%extreme
June Weather32°C (89°F)7 mm (0.3 inches)33%extreme
July Weather32°C (90°F)52 mm (2.0 inches)34%extreme
August Weather32°C (90°F)39 mm (1.5 inches)48%extreme
September Weather29°C (85°F)26 mm (1.0 inches)64%extreme
October Weather23°C (74°F)9 mm (0.4 inches)67%very high
November Weather18°C (65°F)17 mm (0.7 inches)77%high
December Weather12°C (55°F)26 mm (1.0 inches)82%moderate

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