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's arrival registers an average high-temperature of a still warm 75.2°F (24°C), closely aligning with the temperature of the previous month. Islamorada encounters an average temperature dip to a pleasant 71.1°F (21.7°C) throughout December, subtly lower than its daytime maximum.Humidity
The months with the highest humidity in Islamorada are February, June and December, with an average relative humidity of 76%.Rainfall
In Islamorada, in December, it is raining for 12.5 days, with typically 0.91" (23mm) of accumulated precipitation. In Islamorada, during the entire year, the rain falls for 190.1 days and collects up to 27.05" (687mm) of precipitation.Ocean temperature
In Islamorada, in December, the average water temperature is 76.5°F (24.7°C).Note: Think about diving into 76.5°F (24.7°C) waters. Factors like your sensitivity to cold, the brightness of the sun, wind conditions, and the day's warmth play a role. For reference, Olympic swimming competitions use waters between 77°F (25°C) and 82.4°F (28°C).
Daylight
December has the shortest days of the year, with an average of 10h and 36min of daylight.On the first day of December, sunrise is at 6:50 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:44 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 6.4h of sunshine.UV index
In December, the average daily maximum UV index in Islamorada, Florida, is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during December translates into the following guidance:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.
Frequently asked questions
What is the temperature in December in Islamorada?
What are the most humid months in Islamorada?
What is the average humidity in December in Islamorada?
How much does it rain in Islamorada in December?
How warm is the water in December in Islamorada?
What is the month with the shortest days in Islamorada?
What is the average length of the day in December in Islamorada?
When is the sunrise / sunset in December in Islamorada?
What is the month with the least sunshine in Islamorada?
How many hours of sunshine does Islamorada have in December?
What is the UV index reading in December in Islamorada?
Average temperature in December
Islamorada, FL
- Average high temperature in December: 75.2°F
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is January (72.7°F).
- Average low temperature in December: 71.1°F
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (66.9°F).
Average pressure in December
Islamorada, FL
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are September and October (29.94"Hg).
Average wind speed in December
Islamorada, FL
- Average wind speed in December: 12.4mph
The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).
Average humidity in December
Islamorada, FL
- Average humidity in December: 76%
The months with the highest relative humidity are February, June and December (76%).
The month with the lowest relative humidity is March (73%).
Average rainfall in December
Islamorada, FL
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is March (0.59").
Average rainfall days in December
Islamorada, FL
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is September (22.9 days).
The month with the least rainy days is February (9.7 days).
Average sea temperature in December
Islamorada, FL
- Average sea temperature in December: 76.5°F
The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest months (with the lowest average sea temperature) are January and February (73.9°F).
Average daylight in December /
Average sunshine in December
Islamorada, 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 24min).
Average sunshine days in December
Islamorada, FL
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is September (5.2 days).
Average UV index in December
Islamorada, FL
- Average UV index in December: 6
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in December
Islamorada, FL
- Average cloud cover in December: 33
The month with the most cloud cover is October (Cloud cover 35).
The month with the least cloud cover is April (Cloud cover 26).
Average visibility in December
Islamorada, 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).
Islamorada, Florida, USA
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