December weather forecast and climate
Jupiter, FL

Weather in December

The first month of the winter, December, is still a warm month in Jupiter, Florida, with average temperature ranging between max 74.7°F (23.7°C) and min 67.6°F (19.8°C).

Temperature

In Jupiter, the average high-temperature is essentially the same as in November - a still warm 74.7°F (23.7°C). In Jupiter, Florida,, the average low-temperature is 67.6°F (19.8°C).

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Jupiter, during December, the rain falls for 16.2 days and regularly aggregates up to 2.24" (57mm) of precipitation. Throughout the year, there are 230.9 rainfall days, and 46.73" (1187mm) of precipitation is accumulated.

Ocean temperature

In December, the average ocean temperature in Jupiter is 75.9°F (24.4°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 75.9°F (24.4°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

With an average of 10.5h of daylight, December has the shortest days of the year in Jupiter.

Sunshine

The average sunshine in December is 6h.

UV index

The average daily maximum UV index in Jupiter is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 6 in December interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the average humidity in December in Jupiter?

In Jupiter, Florida, the average relative humidity in December is 76%.

How many days does it rain in December in Jupiter?

In Jupiter, Florida, in December, it is raining for 16.2 days, with typically 2.24" (57mm) of accumulated precipitation.

How warm is the water in December in Jupiter?

In Jupiter, in December, the average water temperature is 75.9°F (24.4°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 75.9°F (24.4°C) water.

What is the month with the shortest days in Jupiter?

December has the shortest days of the year in Jupiter, Florida, with an average of 10.5h of daylight.

What is the average length of the day in December in Jupiter?

In Jupiter, the average length of the day in December is 10.5h.

How many hours of sunshine does Jupiter have in December?

The average sunshine in December in Jupiter, Florida, is 6h.

How high is the UV index in December in Jupiter?

In December, the average daily maximum UV index in Jupiter is 6. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.

Average temperature in December
Jupiter, FL

Average temperature in December - Jupiter, FL
  • Average high temperature in December: 74.7°F

The warmest months (with the highest average high temperature) are July and August (86.4°F).
The month with the lowest average high temperature is January (71.6°F).

  • Average low temperature in December: 67.6°F

The month with the highest average low temperature is August (81.1°F).
The coldest month (with the lowest average low temperature) is January (63.1°F).

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Average pressure in December
Jupiter, FL

Average pressure in December - Jupiter, FL
  • Average pressure in December: 30.09"

The month with the highest atmospheric pressure is January (30.12").
Months with the lowest atmospheric pressure are September and October (29.96").

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Average wind speed in December
Jupiter, FL

Average wind speed in December - Jupiter, FL
  • Average wind speed in December: 10.9mph

The windiest months (with the highest average wind speed) are January, March and November (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).

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Average humidity in December
Jupiter, FL

Average humidity in December - Jupiter, FL
  • Average humidity in December: 76%

The month with the highest relative humidity is June (77%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in December
Jupiter, FL

Average rainfall in December - Jupiter, FL
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is August (8.11").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in December
Jupiter, FL

Average rainfall days in December - Jupiter, FL
  • Average rainfall days in December: 16.2 days

The month with the highest number of rainy days is August (26.4 days).
Months with the least rainy days are January and February (13.3 days).

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Average sea temperature in December
Jupiter, FL

Average sea temperature in December - Jupiter, FL
  • Average sea temperature in December: 76°F

The best month for swimming (with the highest average sea temperature) is August (85.7°F).
The coldest month (with the lowest average sea temperature) is January (74.1°F).

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

Average daylight in December / Average sunshine in December - Jupiter, FL
  • Average daylight in December: 10.5h

The month with the longest days is June (Average daylight: 13.8h).
The month with the shortest days is December (Average daylight: 10.5h).

  • Average sunshine in December: 6h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is January (Average sunshine: 5.9h).

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Average sunshine days in December
Jupiter, FL

Average sunshine days in December - Jupiter, FL
  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is January (13.7 days).
The month with the least sunshine days is August (2.3 days).

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Average UV index in December
Jupiter, FL

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

Months with the highest UV index are May, June, July, August and September (UV index 7).
Months with the lowest UV index are January and February (UV index 5).

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Average cloud cover in December
Jupiter, FL

Average cloud cover in December - Jupiter, FL
  • Average cloud cover in December: 36

The month with the most cloud cover is November (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in December
Jupiter, FL

Average visibility in December - Jupiter, FL
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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