Atlanta Weather in December: What to Expect and How to Prepare

December in Atlanta, Georgia brings the city into true winter mode—but it’s usually a mild, changeable winter, not the deep freeze many people imagine. If you live in Atlanta, are planning a December visit, or are just trying to understand local conditions, it helps to know how the weather really behaves this time of year.

Below is a practical guide to December weather in Atlanta, including typical temperatures, rain and ice potential, what to pack, and how it affects driving, events, and daily life.

Typical December Weather in Atlanta

Temperatures: Cool Mornings, Mild Afternoons

December in Atlanta is generally cool but not brutally cold.

You can usually expect:

• Early morning lows: around the mid-30s to low 40s°F
• Afternoon highs: often in the low to mid-50s°F, sometimes reaching the 60s on milder days
• Evenings: cooling back into the 40s°F

Key takeaway:
You’ll likely want layers—a light to medium jacket in the afternoon and something warmer for early mornings and late nights.

Rain, Clouds, and Sunshine

Atlanta’s December weather can feel gray and damp, but it’s not a nonstop washout.

Typical patterns:

• Rain frequency: light to moderate rain on several days throughout the month
• Storms: occasional heavier showers; thunderstorms are less common than in spring and summer but still possible
• Cloud cover: a mix of overcast days and clear, crisp sunshine—especially after a cold front moves through

Because of the humidity and wind, 40s°F with a breeze can feel colder than the actual temperature, especially in open areas like near Mercedes-Benz Stadium or along the Atlanta BeltLine.

Does It Snow in Atlanta in December?

Snow in Atlanta during December is possible but not guaranteed.

What typically happens:

• Most years: no measurable snow at all in December
• Some years: a light dusting or brief flurries that melt quickly
• Occasional events: more impactful winter systems can bring snow or freezing rain/ice, which can cause major disruptions even with small amounts

Important nuance for Atlanta:
Ice is often a bigger problem than snow. A small amount of freezing rain can create slick roads and sidewalks, especially on bridges, overpasses, and hills like those around Downtown, Midtown, and Buckhead.

Quick December Weather Snapshot for Atlanta

What to Wear in Atlanta in December

Everyday Clothing Tips

Because December weather in Atlanta can swing between chilly and mild, flexibility is key.

Consider:

• Base layer: t-shirt or light long-sleeve top
• Mid-layer: sweater, fleece, or sweatshirt
• Outer layer: medium-weight jacket or coat, preferably water-resistant for rainy days
• Bottoms: jeans or heavier pants; optional thermal leggings on colder snaps
• Shoes: closed-toe, comfortable shoes or boots; water-resistant footwear is helpful on rainy days

For residents and visitors who are outside a lot—walking around Piedmont Park, touring Downtown, or using MARTA—wearing layers you can add or remove makes the day much more comfortable.

What to Pack If You’re Visiting Atlanta in December

If you’re traveling to Atlanta:

• Coat or jacket: not a heavy northern-style parka, but something warm enough for 30s–40s°F
• Travel umbrella or hooded jacket: for rainy spells
• Scarf, hat, and gloves: optional but handy on colder mornings/nights or if a cold front comes through
• Comfortable walking shoes: streets can be wet and occasionally slick

✈️ Airport note:
Hartsfield-Jackson Atlanta International Airport can feel windy and colder than in-town neighborhoods due to open spaces around the terminals and parking areas, so keep a jacket easily accessible in carry-on luggage.

How December Weather Affects Daily Life in Atlanta

Driving and Commuting

Most December days are fine for driving, but Atlanta’s traffic plus weather can create headaches:

• Rainy rush hour: Expect slower traffic and slick roads on interstates like I-75, I-85, I-20, and the Perimeter (I-285).
• Cold mornings: Watch for patchy black ice, especially on:
  • Bridges and overpasses
  • Shaded neighborhood streets
  • Steep hills and ramps

If there is a winter weather advisory, local agencies like the Georgia Department of Transportation (GDOT) prioritize major roads and interstates for treatment, but neighborhood roads may stay slick longer.

Transit and Flying

• MARTA trains and buses: Usually keep operating in light rain and cold. In more severe winter weather, schedules can be adjusted or delayed.
• Flights at Hartsfield-Jackson: December weather rarely closes the airport, but delays are possible in icy or stormy conditions. Airlines may de-ice planes during cold, wet snaps, which can add to wait times.

Checking local forecasts before commuting or flying is especially helpful in late December, when cold fronts and travel traffic both increase.

Outdoor Activities and Events in December

Atlanta stays active outdoors even in winter, especially around holiday events.

Common December Experiences

You might encounter:

• Crisp, sunny afternoons ideal for:
  • Walking around Piedmont Park
  • Exploring the Atlanta BeltLine
  • Visiting outdoor holiday markets
• Cool, damp evenings during:
  • Holiday light shows at places like the Atlanta Botanical Garden
  • Outdoor events at city parks or plazas

Because the sun sets early, temperatures can drop quickly once it’s dark, so plan to bring extra layers if you’ll be outside after sunset.

Health and Comfort Considerations

While December in Atlanta is usually manageable, some conditions can affect comfort:

• Cold + damp: Even temperatures in the 40s°F can feel uncomfortable if you’re out for long periods in wind or drizzle.
• Indoor heating: Dry indoor air can be noticeable when home HVAC systems run more consistently.
• Air quality: On most days, air quality is reasonable, but near major roadways and during stagnant weather, sensitive individuals may notice issues more.

If you’re sensitive to temperature swings, carrying a light jacket or extra layer when you leave home is a simple way to stay comfortable all day.

Getting Reliable Local Weather Updates

Because December weather in Atlanta can shift quickly—from mild and sunny to raw and rainy, or from rain to freezing conditions—it helps to check the forecast frequently, especially for:

• Early morning commutes
• Late-night events
• Road trips out of the city (toward higher elevations in North Georgia can mean colder, icier conditions)

Local weather information is commonly provided through:

• Local TV stations and radio forecasts
• Weather apps focused on the Atlanta area
• Emergency and traffic alerts from state and local agencies

For official weather alerts specific to Atlanta and Fulton County, residents often rely on National Weather Service warnings and local government communication channels.

Practical Tips for Atlanta in December

Here are some simple, locally relevant ways to handle Atlanta weather in December:

• Plan for layers: Buildings like offices, malls, and attractions (e.g., Georgia Aquarium, World of Coca-Cola) may feel warm inside while it’s cool outside.
• Keep a rain option handy: A compact umbrella or waterproof jacket in your car or bag helps on days with passing showers.
• Watch for cold fronts: A mild morning can quickly turn chilly by night when a front moves through.
• Drive cautiously on cold, wet days: Even a small amount of freezing rain can cause slick spots, especially in the early morning.
• Check conditions before early flights or long drives: Weather changes overnight are common, and road conditions can differ across the metro area.

By understanding how Atlanta’s weather behaves in December, you can dress appropriately, plan your activities, and move around the city comfortably—whether you’re a longtime local or visiting for the holidays.