December weather forecast
Sun Valley, FL

Share

Weather in December

December, the first month of the winter in Sun Valley, is also a moderately hot month, with an average temperature varying between 68.2°F (20.1°C) and 75°F (23.9°C).

Temperature

In Sun Valley, December's average high-temperature stands at a still moderately hot 75°F (23.9°C), closely related to the preceding month. Sun Valley's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at a pleasant 68.2°F (20.1°C).

Humidity

The months with the highest humidity are June and December, with an average relative humidity of 76%.

Rainfall

In December, in Sun Valley, Florida, the rain falls for 16.5 days. Throughout December, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 238.3 rainfall days, and 54.53" (1385mm) of precipitation is accumulated.

Daylight

With an average of 10h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:52 am and sunset at 5:27 pm. On the last day of December, sunrise is at 7:08 am and sunset at 5:39 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 6h of sunshine.

UV index

The average daily maximum UV index in December in Sun Valley, Florida, is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
[Resources]

Frequently asked questions

What are the temperatures in Sun Valley in December?

Sun Valley in December has an average high-temperature of 75°F (23.9°C) and an average low-temperature of 68.2°F (20.1°C). In October, the average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What are the most humid months in Sun Valley?

The months with the highest humidity in Sun Valley are June and December, with an average relative humidity of 76%.

What is the average humidity in December in Sun Valley?

The average relative humidity in December in Sun Valley, Florida, is 76%.

How many days does it rain in December in Sun Valley?

In Sun Valley, Florida, during December, the rain falls for 16.5 days and regularly aggregates up to 2.36" (60mm) of precipitation.

What is the month with the shortest days in Sun Valley?

With an average of 10h and 30min of daylight, December has the shortest days of the year in Sun Valley.

What is the average length of the day in December in Sun Valley?

In December, the average day length in Sun Valley, Florida, is 10h and 31min.

When are sunrise and sunset in December in Sun Valley?

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 5:27 pm. On the last day of the month, in Sun Valley, Florida, sunrise is at 7:08 am and sunset at 5:39 pm EST.

What is the month with the least sunshine in Sun Valley?

The months with the least sunshine in Sun Valley are January and December, with an average of 6h of sunshine.

How long on average sun shines in December in Sun Valley?

In Sun Valley, the average sunshine duration in December is 6h.

How high is the UV index in December in Sun Valley?

In December, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Sun Valley, FL

Average temperature in December - Sun Valley, FL
  • Average high temperature in December: 75°F

The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (72.5°F).

  • Average low temperature in December: 68.2°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64°F).

[Resources]

Average pressure in December
Sun Valley, FL

Average pressure in December - Sun Valley, FL
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).

[Resources]

Average wind speed in December
Sun Valley, FL

Average wind speed in December - Sun Valley, FL
  • Average wind speed in December: 11mph

The windiest month (with the highest average wind speed) is March (11.5mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

[Resources]

Average humidity in December
Sun Valley, FL

Average humidity in December - Sun Valley, FL
  • Average humidity in December: 76%

The months with the highest relative humidity are June and December (76%).
The month with the lowest relative humidity is March (70%).

[Resources]

Average rainfall in December
Sun Valley, FL

Average rainfall in December - Sun Valley, FL
  • Average rainfall in December: 2.36"

The wettest month (with the highest rainfall) is August (9.06").
The driest month (with the least rainfall) is January (1.3").

[Resources]

Average rainfall days in December
Sun Valley, FL

Average rainfall days in December - Sun Valley, FL
  • Average rainfall days in December: 16.5 days

The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (13.3 days).

[Resources]

Average daylight in December /
Average sunshine in December
Sun Valley, FL

Average daylight in December / Average sunshine in December - Sun Valley, FL
  • Average daylight in December: 10h and 3min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in December: 6h and 0min

The months with the most sunshine are July and August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 6h and 0min).

[Resources]

Average sunshine days in December
Sun Valley, FL

Average sunshine days in December - Sun Valley, FL
  • Average sunshine days in December: 10.6 days

The month with the most sunshine days is March (12.7 days).
The month with the least sunshine days is July (2.3 days).

[Resources]

Average UV index in December
Sun Valley, FL

Average UV index in December - Sun Valley, 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).

[Resources]

Average cloud cover in December
Sun Valley, FL

Average cloud cover in December - Sun Valley, FL
  • Average cloud cover in December: 36

The months with the most cloud cover are January, October, November and December (Cloud cover 36).
The months with the least cloud cover are April and July (Cloud cover 29).

[Resources]

Average visibility in December
Sun Valley, FL

Average visibility in December - Sun Valley, 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).

[Resources]

Sun Valley, Florida, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location