December weather forecast
Royal Palm Beach, FL

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Weather in December

December, the first month of the winter in Royal Palm Beach, is also a moderately hot month, with an average temperature varying between 75.4°F (24.1°C) and 65.5°F (18.6°C).

Temperature

November's transformation into December witnesses an average high-temperature of a still warm 75.4°F (24.1°C), noting a minor change from the preceding month. Royal Palm Beach's nighttime temperature in December drops to an average of 65.5°F (18.6°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Royal Palm Beach, Florida, during December, the rain falls for 14.3 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Royal Palm Beach, during the entire year, the rain falls for 218.6 days and collects up to 34.33" (872mm) of precipitation.

Daylight

The month with the shortest days is December, with an average of 10h and 30min of daylight.
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 7:09 am and sunset at 5:39 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 6.2h of sunshine.

UV index

In December, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: During December, 6 as the daily maximum UV index converts into the following advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. 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. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Royal Palm Beach in December?

The average high-temperature, in December, in Royal Palm Beach, is 75.4°F (24.1°C), while the average low-temperature is 65.5°F (18.6°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in October is estimated at 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 76%.

How many days does it rain in December in Royal Palm Beach?

In Royal Palm Beach, in December, during 14.3 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 30min of daylight.

How many hours of daylight does Royal Palm Beach have in December?

In December, the average day length is 10h and 30min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:52 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:39 pm EST.

What is the month with the least sunshine?

January and December, with an average of 6.2h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

In Royal Palm Beach, the average sunshine duration in December is 6.2h.

What is the UV index reading in December?

In December, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe 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
Royal Palm Beach, FL

Average temperature in December - Royal Palm Beach, FL
  • Average high temperature in December: 75.4°F

The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is January (72.1°F).

  • Average low temperature in December: 65.5°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (61.3°F).

Average pressure in December
Royal Palm Beach, FL

Average pressure in December - Royal Palm Beach, 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).

Average wind speed in December
Royal Palm Beach, FL

Average wind speed in December - Royal Palm Beach, FL
  • Average wind speed in December: 9.1mph

The windiest months (with the highest average wind speed) are January and March (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in December
Royal Palm Beach, FL

Average humidity in December - Royal Palm Beach, FL
  • Average humidity in December: 76%

The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is March (69%).

Average rainfall in December
Royal Palm Beach, FL

Average rainfall in December - Royal Palm Beach, FL
  • Average rainfall in December: 1.34"

The wettest month (with the highest rainfall) is August (5.94").
The driest month (with the least rainfall) is January (0.83").

Average rainfall days in December
Royal Palm Beach, FL

Average rainfall days in December - Royal Palm Beach, FL
  • Average rainfall days in December: 14.3 days

The month with the highest number of rainy days is August (26.6 days).
The month with the least rainy days is January (11.3 days).

Average daylight in December /
Average sunshine in December
Royal Palm Beach, FL

Average daylight in December / Average sunshine in December - Royal Palm Beach, 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 1min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 6h and 12min).

Average sunshine days in December
Royal Palm Beach, FL

Average sunshine days in December - Royal Palm Beach, FL
  • Average sunshine days in December: 12 days

The month with the most sunshine days is January (14.7 days).
The month with the least sunshine days is August (2.1 days).

Average UV index in December
Royal Palm Beach, FL

Average UV index in December - Royal Palm Beach, 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 months with the lowest UV index are January and February (UV index 5).

Average cloud cover in December
Royal Palm Beach, FL

Average cloud cover in December - Royal Palm Beach, FL
  • Average cloud cover in December: 34

The months with the most cloud cover are January, November and December (Cloud cover 34).
The months with the least cloud cover are April, May and July (Cloud cover 27).

Average visibility in December
Royal Palm Beach, FL

Average visibility in December - Royal Palm Beach, 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).

Royal Palm Beach, Florida, USA

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