Marietta (GA)
December
Weather in Marietta, Georgia for December 2026
Your guide to Marietta weather in December - trends and predictions
In general, the average temperature in Marietta at the beginning of December is 6.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 13.7 °F by the end of December.
Marietta experiences moderate rainfall in December, with an average of 8 rainy days and a total precipitation of 283.5 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
23
Dry days
8
Rainy days
0
Snow days
11°/4°
Temperatures
15 km/h
Avg max wind
77 %
Avg humidity
Marietta Weather December
Move between months or click on a day
Temperatures trend during December in Marietta
See the weather trend as well as the moving average line
December weather in Marietta day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Overcast | 7° /2° | 0 mm | 1 | |
| Dec. 2 |  Heavy rain | 5° /1° | 181 mm | 0 | |
| Dec. 3 | Overcast | 2° /0° | 0 mm | 1 | |
| Dec. 4 |  Freezing fog | 8° /0° | 0 mm | 0 | |
| Dec. 5 |  Moderate or heavy rain shower | 6° /2° | 37.7 mm | 1 | |
| Dec. 6 |  Fog | 9° /7° | 0 mm | 0 | |
| Dec. 7 | Fog | 7° /3° | 0 mm | 0 | |
| Dec. 8 |  Light rain | 10° /5° | 6.7 mm | 1 | |
| Dec. 9 | Overcast | 6° /2° | 0 mm | 1 | |
| Dec. 10 | Fog | 13° /1° | 0 mm | 1 | |
| Dec. 11 | Overcast | 7° /1° | 0 mm | 1 | |
| Dec. 12 |  Sunny | 14° /3° | 0 mm | 1 | |
| Dec. 13 | Fog | 10° /4° | 1.3 mm | 0 | |
| Dec. 14 | Overcast | 13° /-3° | 8.9 mm | 1 | |
| Dec. 15 | Sunny | 5° /-6° | 0 mm | 1 | |
| Dec. 16 | Sunny | 11° /-1° | 0 mm | 1 | |
| Dec. 17 | Overcast | 8° /3° | 0 mm | 0 | |
| Dec. 18 | Moderate or heavy rain shower | 11° /8° | 37.8 mm | 0 | |
| Dec. 19 |  Light rain shower | 14° /7° | 6 mm | 1 | |
| Dec. 20 | Sunny | 12° /2° | 0 mm | 1 | |
| Dec. 21 | Overcast | 14° /6° | 0 mm | 1 | |
| Dec. 22 | Sunny | 11° /4° | 0 mm | 1 | |
| Dec. 23 | Overcast | 14° /7° | 0 mm | 0 | |
| Dec. 24 | Fog | 17° /12° | 0 mm | 0 | |
| Dec. 25 | Fog | 17° /13° | 0 mm | 0 | |
| Dec. 26 | Fog | 14° /13° | 0 mm | 0 | |
| Dec. 27 | Mist | 18° /15° | 0 mm | 0 | |
| Dec. 28 | Mist | 17° /14° | 0 mm | 0 | |
| Dec. 29 |  Heavy rain at times | 15° /1° | 4.1 mm | 1 | |
| Dec. 30 | Sunny | 5° /-3° | 0 mm | 1 | |
| Dec. 31 |  Partly cloudy | 10° /-2° | 0 mm | 1 | |
| Next | |||||
Important Notice
Our weather forecast for Marietta in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Marietta forecast closer to your planned date for the most up-to-date weather information.
Change Month
Marietta in December - FAQ
What are the expected maximum and minimum temperatures in Marietta during December?
Prepare for cooler days with highs just around 11° and colder nights, dipping below 4°.
How much rainfall should be expected in Marietta during December?
Significant rainfall exceeding 283.5 mm is expected in Marietta during December, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Marietta during December?
The average wind speed in Marietta during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Marietta
Explore the daily rainfall trends and prepare for Mariettas December weather 💧
Typically, Marietta has 8 rainy days in December with a total of 283.5 mm of rainfall.
Quick links
More Marietta weather pages
You are here
Where is Marietta?Get accurate weather forecasts for Marietta, located at latitude 33.953 and longitude -84.55. Stay updated with localized weather information tailored for Marietta.
Related locations
Select a location for accurate weather forecast
More Locations Found a mistake?
We appreciate your attention to details. Tell us here.