December weather forecastSavannah, GA

A railway track through a well lit River Street in Savannah, Georgia

December

Weather in December

December brings winter to Savannah, Georgia, and with it the chilliest weather of the year. The weather exhibits a clear dip with the lowest average temperatures dropping to 49.1°F (9.5°C). The start of winter does bring some novelty, in the form of traces of snowfall, with an average snowfall of 0.04" (1mm). Despite lesser daylight, the holiday month has a joyous aura with the festivities lighting up the city's streets. To conclude, Savannah in December is a city wrapped in winter chill, bustling with holiday cheer.

Temperature

December marks a gentle change in average high-temperature, declining from November's enjoyable 67.1°F (19.5°C) to a still comfortable 61.7°F (16.5°C). Throughout December, an average low-temperature of 49.1°F (9.5°C) is expected.

Humidity

The most humid month is December, with an average relative humidity of 77%.

Rainfall

In Savannah, in December, it is raining for 10.9 days, with typically 2.91" (74mm) of accumulated precipitation. In Savannah, during the entire year, the rain falls for 155.6 days and collects up to 29.41" (747mm) of precipitation.

Snowfall

January and December are months with snowfall. The months with the most snowfall are January and December, with an average 0.04" (1mm) of accumulated snow.

Ocean temperature

In Savannah, the average seawater temperature in December is 61.3°F (16.3°C).
Note: Swimming in water at 61.3°F (16.3°C) is not a pleasurable experience for most. The task of managing breathing becomes more challenging as the water temperature descends from 69.8°F (21°C) to 59°F (15°C).

Daylight

With an average of 10h and 6min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:07 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:30 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 5.4h of sunshine.

UV index

In Savannah, the average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In December, the maximum UV index of 4 translates into these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take note! UV radiation from the Sun can double in intensity due to snow reflection.

Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in Savannah, records 61.7°F (16.5°C), while the low-temperature is 49.1°F (9.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is appraised at 95°F (35°C).

With an average relative humidity of 77%, December is the most humid month.

In Savannah, the average relative humidity in December is 77%.

In Savannah, in December, during 10.9 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

The months with the most snowfall are January and December, with an average 0.04" (1mm) of accumulated snow.

December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

In December, the average ocean temperature in Savannah is 61.3°F (16.3°C). For swimming, a surface water temperature of 61.3°F (16.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

December has the shortest days of the year, with an average of 10h and 6min of daylight.

The average day length in December is 10h and 5min.

On the first day of December, sunrise is at 7:07 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:30 pm EST.

The month with the least sunshine is December, with an average of 5.4h of sunshine.

The average sunshine duration in December is 5.4h.

The average daily maximum UV index in December is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

67.1°F

61.7°F

58.1°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8mph

8.2mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

0.1

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

20.6

18.1

19.5

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Savannah, GA

Average high temperature in December: 61.7°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (58.1°F).

Average low temperature in December: 49.1°F

The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (43.7°F).

Average pressure in December
Savannah, GA

Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in December
Savannah, GA

Average wind speed in December: 7.4mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in December
Savannah, GA

Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (71%).

Average rainfall in December
Savannah, GA

Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is January (1.38").

Average rainfall days in December
Savannah, GA

Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is November (7.3 days).

Average snowfall in December
Savannah, GA

Average snowfall in December: 0.04"

The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Savannah, GA

Average snowfall days in December: 0.1 days

The months with the highest number of snowfall days are January, February and December (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average sea temperature in December
Savannah, GA

Average sea temperature in December: 61.3°F

The best month for swimming (with the highest average sea temperature) is August (83.7°F).
The coldest month (with the lowest average sea temperature) is February (56.6°F).

Average daylight in December /
Average sunshine in December
Savannah, GA

Average daylight in December: 10h and 6min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

Average sunshine in December: 5h and 24min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in December
Savannah, GA

Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is August (8.5 days).

Average UV index in December
Savannah, GA

Average UV index in December: 4

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in December
Savannah, GA

Average cloud cover in December: 40

The months with the most cloud cover are February and December (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in December
Savannah, GA

Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).