December weather forecast
Islandia, FL

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Weather in December

The first month of the winter, December, is also a moderately hot month in Islandia, Florida, with an average temperature varying between 67.1°F (19.5°C) and 76.6°F (24.8°C).

Temperature

December's arrival brings an average high-temperature of a still warm 76.6°F (24.8°C), slightly deviating from November's 79.7°F (26.5°C). Islandia's temperature tends to fall to an average low of 67.1°F (19.5°C) during the nights of December.

Humidity

The most humid month is December, with an average relative humidity of 75%.

Rainfall

In Islandia, in December, it is raining for 14.2 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, in Islandia, there are 225.9 rainfall days, and 40.91" (1039mm) of precipitation is accumulated.

Daylight

The month with the shortest days in Islandia 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 5:30 pm. On the last day of December, sunrise is at 7:06 am and sunset at 5:41 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 6.3h of sunshine.

UV index

The average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 6 in December transforms into the following instructions:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What are the temperatures in Islandia in December?

The high-temperature in Islandia, Florida, during December is 76.6°F (24.8°C) and the low-temperature is 67.1°F (19.5°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in October is appraised at 91.4°F (33°C).

What is the most humid month in Islandia?

With an average relative humidity of 75%, December is the most humid month.

What is the average humidity in December in Islandia?

In December, the average relative humidity in Islandia, Florida, is 75%.

How many days does it rain in December in Islandia?

In Islandia, Florida, in December, it is raining for 14.2 days, with typically 1.3" (33mm) of accumulated precipitation.

What is the month with the shortest days in Islandia?

The month with the shortest days is December, with an average of 10h and 36min of daylight.

How many hours of daylight does Islandia have in December?

In December, the average day length in Islandia, Florida, is 10h and 35min.

What time are sunrise and sunset in December in Islandia?

On the first day of December, sunrise is at 6:50 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:41 pm EST.

What is the month with the least sunshine in Islandia?

With an average of 6.3h of sunshine, December has the least sunshine of the year in Islandia, Florida.

How long on average sun shines in December in Islandia?

The average sunshine duration in December in Islandia, Florida, is 6.3h.

What is the UV index intensity in December in Islandia?

In December, the average daily maximum UV index in Islandia is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Average temperature in December
Islandia, FL

Average temperature in December - Islandia, FL
  • Average high temperature in December: 76.6°F

The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (73.9°F).

  • Average low temperature in December: 67.1°F

The month with the highest average low temperature is August (81.7°F).
The coldest month (with the lowest average low temperature) is January (63.1°F).

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Average pressure in December
Islandia, FL

Average pressure in December - Islandia, FL
  • Average pressure in December: 30.08"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).

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Average wind speed in December
Islandia, FL

Average wind speed in December - Islandia, FL
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in December
Islandia, FL

Average humidity in December - Islandia, 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 (68%).

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Average rainfall in December
Islandia, FL

Average rainfall in December - Islandia, FL
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is August (6.77").
The driest month (with the least rainfall) is February (1.14").

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Average rainfall days in December
Islandia, FL

Average rainfall days in December - Islandia, FL
  • Average rainfall days in December: 14.2 days

The month with the highest number of rainy days is August (26.8 days).
The months with the least rainy days are January and February (12.5 days).

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Average daylight in December /
Average sunshine in December
Islandia, FL

Average daylight in December / Average sunshine in December - Islandia, 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).

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Average sunshine days in December
Islandia, FL

Average sunshine days in December - Islandia, FL
  • Average sunshine days in December: 12.3 days

The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (2.1 days).

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Average UV index in December
Islandia, FL

Average UV index in December - Islandia, FL
  • Average UV index in December: 6

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).

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Average cloud cover in December
Islandia, FL

Average cloud cover in December - Islandia, FL
  • Average cloud cover in December: 32

The month with the most cloud cover is October (Cloud cover 36).
The month with the least cloud cover is April (Cloud cover 26).

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Average visibility in December
Islandia, FL

Average visibility in December - Islandia, 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).

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Islandia, Florida, USA

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