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 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
December denotes a minimal variation in the average high-temperature to an agreeable 70.3°F (21.3°C) from November's 74.3°F (23.5°C). In Harbor Bluffs, the expected average low-temperature for December is a moderate 60.6°F (15.9°C).Humidity
With an average relative humidity of 77%, December is the most humid month in Harbor Bluffs, Florida.Rainfall
In Harbor Bluffs, in December, during 7.4 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Harbor Bluffs, during the entire year, the rain falls for 149.9 days and collects up to 16.18" (411mm) of precipitation.Ocean temperature
In Harbor Bluffs, Florida, in December, the average water temperature is 68.5°F (20.3°C).Note: For most, swimming in 68.5°F (20.3°C) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 69.8°F (21°C) to 59°F (15°C).
Daylight
December has the shortest days of the year, with an average of 10h and 24min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 5:35 pm. On the last day of December, in Harbor Bluffs, sunrise is at 7:22 am and sunset at 5:46 pm EST.
Sunshine
With an average of 6.5h of sunshine, December has the least sunshine of the year.UV index
In Harbor Bluffs, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 5 in December translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the usual temperature for Harbor Bluffs in December?
What is the most humid month in Harbor Bluffs?
What is the average humidity in December in Harbor Bluffs?
How many days does it rain in December in Harbor Bluffs?
What is the ocean temperature in December in Harbor Bluffs?
What is the month with the shortest days in Harbor Bluffs?
What is the average length of the day in December in Harbor Bluffs?
When is the sunrise / sunset in December in Harbor Bluffs?
What is the month with the least sunshine in Harbor Bluffs?
How long on average sun shines in December in Harbor Bluffs?
What is the UV index reading in December in Harbor Bluffs?
Average temperature in December
Harbor Bluffs, FL
- Average high temperature in December: 70.3°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 (65.8°F).
- Average low temperature in December: 60.6°F
The month with the highest average low temperature is August (80.6°F).
The coldest month (with the lowest average low temperature) is January (55.9°F).
Average pressure in December
Harbor Bluffs, FL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in December
Harbor Bluffs, FL
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and March (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Harbor Bluffs, FL
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Harbor Bluffs, FL
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is March (0.39").
Average rainfall days in December
Harbor Bluffs, FL
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is February (6.7 days).
Average sea temperature in December
Harbor Bluffs, FL
- Average sea temperature in December: 68.6°F
The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64°F).
Average daylight in December /
Average sunshine in December
Harbor Bluffs, 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 3min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Harbor Bluffs, FL
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is August (5 days).
Average UV index in December
Harbor Bluffs, 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 month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Harbor Bluffs, FL
- Average cloud cover in December: 30
The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).
Average visibility in December
Harbor Bluffs, 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).
Harbor Bluffs, Florida, USA
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