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 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
Saint Lucie's average high-temperature in December is a still moderately hot 73.9°F (23.3°C), marking an insignificant difference from the 76.5°F (24.7°C) of November. In the month of December, the average temperature in Saint Lucie dips to an enjoyable 63.7°F (17.6°C) during the night.Humidity
In December, the average relative humidity is 77%.Rainfall
In Saint Lucie, in December, it is raining for 14 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, there are 221.2 rainfall days, and 46.26" (1175mm) of precipitation is accumulated.Daylight
The month with the shortest days in Saint Lucie is December, with an average of 10h and 24min of daylight.On the first day of December, sunrise is at 6:54 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:37 pm EST.
Sunshine
In Saint Lucie, the average sunshine in December is 6h.UV index
January, February and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during December translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Saint Lucie in December?
What is the average humidity in December in Saint Lucie?
How much does it rain in Saint Lucie in December?
What is the month with the shortest days in Saint Lucie?
What is the average length of the day in December in Saint Lucie?
When are sunrise and sunset in December in Saint Lucie?
How many hours of sunshine does Saint Lucie have in December?
When is the lowest UV index in Saint Lucie?
What is the UV index reading in December in Saint Lucie?
Average temperature in December
Saint Lucie, FL
- Average high temperature in December: 73.9°F
The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is January (70.5°F).
- Average low temperature in December: 63.7°F
The month with the highest average low temperature is August (78.4°F).
The coldest month (with the lowest average low temperature) is January (59.2°F).
Average pressure in December
Saint Lucie, FL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in December
Saint Lucie, FL
- Average wind speed in December: 8.9mph
The windiest months (with the highest average wind speed) are January and March (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Saint Lucie, FL
- Average humidity in December: 77%
The month with the highest relative humidity is August (79%).
The month with the lowest relative humidity is March (72%).
Average rainfall in December
Saint Lucie, FL
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is August (8.23").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in December
Saint Lucie, FL
- Average rainfall days in December: 14 days
The month with the highest number of rainy days is August (28.1 days).
The month with the least rainy days is January (11.3 days).
Average daylight in December /
Average sunshine in December
Saint Lucie, FL
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in December
Saint Lucie, FL
- Average sunshine days in December: 12.9 days
The month with the most sunshine days is January (17 days).
The month with the least sunshine days is August (0.8 days).
Average UV index in December
Saint Lucie, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in December
Saint Lucie, FL
- Average cloud cover in December: 37
The months with the most cloud cover are November and December (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 28).
Average visibility in December
Saint Lucie, FL
- 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).
Saint Lucie, Florida, USA
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