Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Mandeville in December undergoes a slight reduction in the average high-temperature, shifting from November's pleasant 68.4°F (20.2°C) to a refreshing 61.9°F (16.6°C). Throughout December, an average nighttime temperature of 48.9°F (9.4°C) is experienced.Humidity
The most humid month is December, with an average relative humidity of 79%.Rainfall
In Mandeville, in December, during 14.3 rainfall days, 3.94" (100mm) of precipitation is typically accumulated. In Mandeville, during the entire year, the rain falls for 183.7 days and collects up to 43.94" (1116mm) of precipitation.Snowfall
February through December are months without snowfall.Ocean temperature
In December, the average ocean temperature is 60.4°F (15.8°C).Note: The majority of people do not enjoy swimming in 60.4°F (15.8°C). The difficulty in controlling breathing escalates as the temperature descends from 69.8°F (21°C) to 59°F (15°C).
Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year in Mandeville.On the first day of December, sunrise is at 6:39 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 5:10 pm CST.
Sunshine
December has the least sunshine of the year in Mandeville, with an average of 5.1h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 3 in December translates into the following instructions:
Undertake protective steps - Preventing sun damage is advised. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the most humid month?
What is the average humidity in December in Mandeville?
How many days does it rain in December?
When it does not snow?
Does it snow in December?
How cold is the water in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Mandeville have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Mandeville, LA
- Average high temperature in December: 61.9°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in December: 48.9°F
The months with the highest average low temperature are July and August (76.8°F).
The coldest month (with the lowest average low temperature) is January (44.8°F).
Average pressure in December
Mandeville, LA
- 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
Mandeville, LA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Mandeville, LA
- Average humidity in December: 79%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Mandeville, LA
- Average rainfall in December: 3.94"
The wettest month (with the highest rainfall) is August (6.73").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in December
Mandeville, LA
- Average rainfall days in December: 14.3 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in December
Mandeville, LA
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.08").
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
Mandeville, LA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Mandeville, LA
- Average sea temperature in December: 60.3°F
The best month for swimming (with the highest average sea temperature) is August (86.4°F).
The coldest month (with the lowest average sea temperature) is January (56.6°F).
Average daylight in December /
Average sunshine in December
Mandeville, LA
- 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 6min).
Average sunshine days in December
Mandeville, LA
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (5.6 days).
Average UV index in December
Mandeville, LA
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Mandeville, LA
- Average cloud cover in December: 46
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in December
Mandeville, LA
- 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).
Mandeville, Louisiana, USA
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