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
The shift into December reveals an average high-temperature of a still moderately hot 75.7°F (24.3°C), closely mirroring November's climate. Bay Harbor Islands maintains a consistent average nighttime low-temperature of 68.4°F (20.2°C) throughout December.Humidity
The most humid month is December, with an average relative humidity of 75%.Rainfall
In Bay Harbor Islands, in December, it is raining for 8.6 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 157 rainfall days, and 11.34" (288mm) of precipitation is accumulated.Snowfall
January through August, October through December are months without snowfall in Bay Harbor Islands.Ocean temperature
In December, the average ocean temperature is 76.5°F (24.7°C).Note: Considering one's resistance to cold, elements like sunshine, wind, and the prevailing temperature matter when taking a swim in 76.5°F (24.7°C) waters. (For comparison, the Olympic swimming standard is set between 77°F (25°C) and 82.4°F (28°C).)
Daylight
The month with the shortest days in Bay Harbor Islands is December, with an average of 10h and 36min of daylight.On the first day of the month, sunrise is at 6:50 am and sunset at 5:28 pm. On the last day of December, in Bay Harbor Islands, sunrise is at 7:07 am and sunset at 5:40 pm EST.
Sunshine
With an average of 6.3h of sunshine, December has the least sunshine of the year.UV index
The average daily maximum UV index in December in Bay Harbor Islands is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 during December translates into the following guidance:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Bay Harbor Islands?
What is the most humid month in Bay Harbor Islands?
What is the average humidity in December in Bay Harbor Islands?
How much does it rain in Bay Harbor Islands in December?
When it does not snow in Bay Harbor Islands?
How warm is the water in December in Bay Harbor Islands?
What is the month with the shortest days in Bay Harbor Islands?
What is the average length of the day in December in Bay Harbor Islands?
What time are sunrise and sunset in December in Bay Harbor Islands?
What is the month with the least sunshine in Bay Harbor Islands?
How long on average sun shines in December in Bay Harbor Islands?
What is the UV index reading in December in Bay Harbor Islands?
Average temperature in December
Bay Harbor Islands, FL
- Average high temperature in December: 75.7°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 (73°F).
- Average low temperature in December: 68.4°F
The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (64°F).
Average pressure in December
Bay Harbor Islands, FL
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).
Average wind speed in December
Bay Harbor Islands, FL
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is March (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in December
Bay Harbor Islands, FL
- Average humidity in December: 75%
The month with the highest relative humidity is December (75%).
The month with the lowest relative humidity is March (69%).
Average rainfall in December
Bay Harbor Islands, FL
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is August (1.97").
The driest month (with the least rainfall) is January (0.31").
Average rainfall days in December
Bay Harbor Islands, FL
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is September (21.7 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Bay Harbor Islands, FL
- Average snowfall in December: 0"
The month with the highest snowfall is September (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0").
Average snowfall days in December
Bay Harbor Islands, FL
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average sea temperature in December
Bay Harbor Islands, FL
- Average sea temperature in December: 76.4°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 February (74°F).
Average daylight in December /
Average sunshine in December
Bay Harbor Islands, FL
- Average daylight in December: 10h and 4min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in December
Bay Harbor Islands, FL
- Average sunshine days in December: 17 days
The month with the most sunshine days is March (20.3 days).
The month with the least sunshine days is September (4.4 days).
Average UV index in December
Bay Harbor Islands, FL
- Average UV index in December: 6
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in December
Bay Harbor Islands, FL
- Average cloud cover in December: 32
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 27).
Average visibility in December
Bay Harbor Islands, 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).
Bay Harbor Islands, Florida, USA
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