December weather forecast
Biloxi, MS

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A tall and white iconic landmark of a lighthouse and other houses in this scenic field of clean lawns in Biloxi, Mississippi
A tall and white iconic landmark of a lighthouse and other houses in this scenic field of clean lawns in Biloxi, Mississippi

Weather in December

Effacing autumn's last remnants, December brings the chill of winter to Biloxi. The average highest temperature plummets further to 61.9°F (16.6°C) marking the year's climax. The noticeable drop in sea temperature synchronizes with the town’s quiet winter rhythm. Shrouded under numerous cloud covers, the city's skies mirror the melancholic end of the year. Despite the winter chills, the spirit of Biloxi remains warm, welcoming the festive season with open arms.

Temperature

A moderate decline in average high-temperatures is noted in December, moving from an agreeable 68.2°F (20.1°C) in November to a refreshing 61.9°F (16.6°C). In the month of December, Biloxi experiences an average low-temperature of 50.4°F (10.2°C).

Humidity

With an average relative humidity of 79%, December is the most humid month.

Rainfall

In Biloxi, in December, during 13.3 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. Throughout the year, there are 179.4 rainfall days, and 40.71" (1034mm) of precipitation is accumulated.

Snowfall

In Biloxi, snow does not fall in February through December.

Ocean temperature

In Biloxi, the average seawater temperature in December is 60.6°F (15.9°C).
Note: A majority do not enjoy swimming in water at 60.6°F (15.9°C). The difficulty in controlling breathing increases progressively as the temperature dips below 69.8°F (21°C).

Daylight

The month with the shortest days is December, with an average of 10h and 12min of daylight.
On the first day of December, sunrise is at 6:35 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 5:05 pm CST.

Sunshine

With an average of 5.2h of sunshine, December has the least sunshine of the year.

UV index

January, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 4 in December suggests the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.

Frequently asked questions

What are December temperatures?

An average high-temperature, in December, in Biloxi, is 61.9°F (16.6°C) and the average low-temperature is 50.4°F (10.2°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 98.6°F (37°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 79%.

What is the average humidity in December?

In December, the average relative humidity is 79%.

How much does it rain in December?

In Biloxi, in December, during 13.3 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

When it does not snow?

In Biloxi, snow does not fall in February through December.

Does it snow in December?

In Biloxi, Mississippi, in December, it doesn't snow. In January, it regularly snows.

What is the ocean temperature in December?

In Biloxi, the average seawater temperature in December is 60.6°F (15.9°C). For most, swimming in 60.6°F (15.9°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 12min of daylight.

How many hours of daylight does Biloxi have in December?

The average day length in December is 10h and 13min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:35 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 5:05 pm CST.

What is the month with the least sunshine?

With an average of 5.2h of sunshine, December has the least sunshine of the year.

How many hours of sunshine does Biloxi have in December?

In December, the average sunshine duration is 5.2h.

When is the lowest UV index?

The months with the lowest UV index are January, November and December, with an average maximum UV index of 4.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Biloxi, MS

Average temperature in December - Biloxi, MS
  • Average high temperature in December: 61.9°F

The warmest months (with the highest average high temperature) are July and August (89.8°F).
The month with the lowest average high temperature is January (59.2°F).

  • Average low temperature in December: 50.4°F

The month with the highest average low temperature is August (77.7°F).
The coldest month (with the lowest average low temperature) is January (46°F).

Average pressure in December
Biloxi, MS

Average pressure in December - Biloxi, MS
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in December
Biloxi, MS

Average wind speed in December - Biloxi, MS
  • Average wind speed in December: 8.4mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity in December
Biloxi, MS

Average humidity in December - Biloxi, MS
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Biloxi, MS

Average rainfall in December - Biloxi, MS
  • Average rainfall in December: 3.43"

The wettest month (with the highest rainfall) is August (6.34").
The driest month (with the least rainfall) is November (2.09").

Average rainfall days in December
Biloxi, MS

Average rainfall days in December - Biloxi, MS
  • Average rainfall days in December: 13.3 days

The month with the highest number of rainy days is August (24.2 days).
The month with the least rainy days is November (8.3 days).

Average snowfall in December
Biloxi, MS

Average snowfall in December - Biloxi, MS
  • Average snowfall in December: 0"

The month with the highest snowfall is January (0.35").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in December
Biloxi, MS

Average snowfall days in December - Biloxi, MS
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average sea temperature in December
Biloxi, MS

Average sea temperature in December - Biloxi, MS
  • Average sea temperature in December: 60.6°F

The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is January (56.5°F).

Average daylight in December /
Average sunshine in December
Biloxi, MS

Average daylight in December / Average sunshine in December - Biloxi, MS
  • Average daylight in December: 10h and 1min

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

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in December
Biloxi, MS

Average sunshine days in December - Biloxi, MS
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (19.8 days).
The months with the least sunshine days are July and August (5.1 days).

Average UV index in December
Biloxi, MS

Average UV index in December - Biloxi, MS
  • Average UV index in December: 4

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 4).

Average cloud cover in December
Biloxi, MS

Average cloud cover in December - Biloxi, MS
  • Average cloud cover in December: 44

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 23).

Average visibility in December
Biloxi, MS

Average visibility in December - Biloxi, MS
  • 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).

Biloxi, Mississippi, USA

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