nomadseason

December Weather in Atlanta, United States

Last updated: June 24, 2025

In December, the average temperature in Atlanta, United States hovers around 11°C (52°F). Expect a range from a chilly -3°C (27°F) to a warm 28°C (82°F). During this month, you can anticipate 130 mm (5.1 in) of precipitation over 8 days, coupled with a high average humidity of 88%. Stay prepared for diverse weather conditions!

December Temperature in Atlanta

In December in Atlanta, the average temperature is 11°C (52°F). Maximum temperatures can reach 28°C (82°F), while minimums can drop as low as -3°C (27°F). This variation in temperature makes it essential for travelers to pack accordingly and be prepared for both warm and chilly conditions.

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

The chart illustrates December temperature patterns in Atlanta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Atlanta, December typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (82°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec475060647481838378685551
Data source: Temperature data for Atlanta 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 Atlanta

In Atlanta in December, the total precipitation amount is 130 mm (5.1 in) over a span of 8 days.

December Precipitation Trends in Atlanta

The chart displays monthly precipitation patterns in Atlanta, 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 Atlanta, December typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec10715513417115310589879610666130
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Atlanta

In Atlanta in December, humidity is 88%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and the air feel thick, encouraging you to seek shelter or stay hydrated as you explore.

December Average Humidity in Atlanta

This chart illustrates the average monthly humidity levels in Atlanta, 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 Atlanta is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%78%79%81%77%72%65%63%70%82%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Atlanta

In Atlanta 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 Atlanta for better planning.

Maximum UV Index Levels in Atlanta for December

The chart shows the monthly maximum UV Index (UVI) for Atlanta 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 Atlanta typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Atlanta 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 Atlanta Compares to Other Months

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

This table compares monthly weather conditions in Atlanta, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)107 mm (4.2 inches)82%moderate
February Weather10°C (50°F)155 mm (6.1 inches)80%high
March Weather15°C (60°F)134 mm (5.3 inches)78%very high
April Weather18°C (65°F)171 mm (6.7 inches)79%very high
May Weather23°C (74°F)153 mm (6.0 inches)81%extreme
June Weather27°C (81°F)105 mm (4.1 inches)77%extreme
July Weather29°C (84°F)89 mm (3.5 inches)72%extreme
August Weather28°C (83°F)87 mm (3.4 inches)65%extreme
September Weather26°C (79°F)96 mm (3.8 inches)63%very high
October Weather20°C (68°F)106 mm (4.2 inches)70%very high
November Weather13°C (56°F)66 mm (2.6 inches)82%high
December Weather11°C (52°F)130 mm (5.1 inches)88%moderate

Compare Atlanta's Climate with Cities Worldwide