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December Weather in Altha, United States

Last updated: June 24, 2025

In December, the average temperature in Altha, United States hovers around 13°C (56°F), making it a cool yet pleasant time of year. Expect a minimum chill of -4°C (25°F) and occasional warmth peaking at 27°C (81°F). However, prepare for some wet days, as precipitation averages 131 mm (5.2 in) over the course of 9 days. Additionally, the air remains quite humid, with an average humidity level of 86%.

December Temperature in Altha

In December, in Altha, the average temperature is 13°C (56°F). Maximums can reach 27°C (81°F), while minimums can dip as low as -4°C (25°F). Travelers should be prepared for a wide range of temperatures and pack appropriately for both warm and cool conditions.

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

The chart illustrates December temperature patterns in Altha, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altha, December typically has an average temperature of 13°C (56°F), with highs reaching up to 27°C (81°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec536063687580818179736056
Data source: Temperature data for Altha 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 Altha

In Altha in December, the precipitation amount is 131 mm (5.2 in) over the course of 9 days.

December Precipitation Trends in Altha

The chart displays monthly precipitation patterns in Altha, 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 Altha, December typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec88127571161091831782041599547131
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Altha

In Altha in December, humidity is 86%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making outdoor activities slightly uncomfortable and prompting travelers to seek shade or air-conditioned spaces frequently.

December Average Humidity in Altha

This chart illustrates the average monthly humidity levels in Altha, 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 Altha is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%79%77%74%70%78%78%79%74%83%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Altha

In Altha 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 Altha for better planning.

Maximum UV Index Levels in Altha for December

The chart shows the monthly maximum UV Index (UVI) for Altha 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 Altha typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589101111121110864
Data source: Altha 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 Altha Compares to Other Months

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

This table compares monthly weather conditions in Altha, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)88 mm (3.5 inches)83%moderate
February Weather15°C (60°F)127 mm (5.0 inches)82%very high
March Weather17°C (63°F)57 mm (2.3 inches)79%very high
April Weather20°C (68°F)116 mm (4.6 inches)77%very high
May Weather24°C (75°F)109 mm (4.3 inches)74%extreme
June Weather26°C (80°F)183 mm (7.2 inches)70%extreme
July Weather27°C (81°F)178 mm (7.0 inches)78%extreme
August Weather27°C (81°F)204 mm (8.0 inches)78%extreme
September Weather26°C (79°F)158 mm (6.2 inches)79%very high
October Weather23°C (73°F)95 mm (3.7 inches)74%very high
November Weather16°C (60°F)47 mm (1.9 inches)83%high
December Weather13°C (56°F)131 mm (5.2 inches)86%moderate

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