December weather forecast
Stuart, FL

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Weather in December

December, the first month of the winter in Stuart, is still a warm month, with an average temperature varying between 74.5°F (23.6°C) and 65.3°F (18.5°C).

Temperature

A minor adjustment in Stuart's average high-temperature is noted with the start of December, touching a still moderately hot 74.5°F (23.6°C) from November's 77.2°F (25.1°C). Stuart's temperature drops to an average low of 65.3°F (18.5°C) during the nights of December.

Humidity

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

Rainfall

In Stuart, Florida, in December, during 9.3 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Stuart, during the entire year, the rain falls for 168.1 days and collects up to 14.09" (358mm) of precipitation.

Ocean temperature

In December, the average ocean temperature is 75.6°F (24.2°C).
Note: A swim in 75.6°F (24.2°C) waters can be refreshing, especially when factoring in a person's cold tolerance, sunshine, wind, and the overall temperature. As a point of reference, Olympic swimming events are held in 77°F (25°C) to 82.4°F (28°C) waters.

Daylight

December has the shortest days of the year in Stuart, with an average of 10h and 30min of daylight.
On the first day of the month, sunrise is at 6:53 am and sunset at 5:26 pm. On the last day of December, in Stuart, sunrise is at 7:10 am and sunset at 5:38 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 6.1h of sunshine.

UV index

The months with the lowest UV index in Stuart are January and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 5 in December translates into these instructions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. To protect against the Sun's most potent rays, avoid direct exposure around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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Frequently asked questions

What are December temperatures in Stuart?

An average high-temperature, in December, in Stuart, is 74.5°F (23.6°C) and the average low-temperature is 65.3°F (18.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in October is computed to be 87.8°F (31°C).

What is the average humidity in December in Stuart?

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

How much does it rain in Stuart in December?

In Stuart, Florida, in December, during 9.3 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

What is the ocean temperature in December in Stuart?

In Stuart, Florida, the average seawater temperature in December is 75.6°F (24.2°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 75.6°F (24.2°C).

What is the month with the shortest days in Stuart?

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

How many hours of daylight does Stuart have in December?

The average day length in December is 10h and 28min.

What time are sunrise and sunset in December in Stuart?

On the first day of December in Stuart, Florida, sunrise is at 6:53 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:38 pm EST.

What are the months with the least sunshine in Stuart?

The months with the least sunshine in Stuart, Florida, are January and December, with an average of 6.1h of sunshine.

How many hours of sunshine does Stuart have in December?

The average sunshine duration in December in Stuart, Florida, is 6.1h.

When is the lowest UV index in Stuart?

The months with the lowest UV index in Stuart, Florida, are January and December, with an average maximum UV index of 5.

What is the UV index intensity in December in Stuart?

In December, the average daily maximum UV index in Stuart, Florida, is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.

Average temperature in December
Stuart, FL

Average temperature in December - Stuart, FL
  • Average high temperature in December: 74.5°F

The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (71.4°F).

  • Average low temperature in December: 65.3°F

The month with the highest average low temperature is August (79.3°F).
The coldest month (with the lowest average low temperature) is January (61.2°F).

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Average pressure in December
Stuart, FL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in December
Stuart, FL

Average wind speed in December - Stuart, FL
  • Average wind speed in December: 9.9mph

The windiest months (with the highest average wind speed) are January, March and November (10.3mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in December
Stuart, FL

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

The months with the highest relative humidity are June and August (78%).
The month with the lowest relative humidity is March (70%).

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Average rainfall in December
Stuart, FL

Average rainfall in December - Stuart, FL
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in December
Stuart, FL

Average rainfall days in December - Stuart, FL
  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is August (23.1 days).
The month with the least rainy days is February (7.7 days).

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Average sea temperature in December
Stuart, FL

Average sea temperature in December - Stuart, FL
  • Average sea temperature in December: 75.6°F

The best month for swimming (with the highest average sea temperature) is August (85.1°F).
The coldest month (with the lowest average sea temperature) is February (73.3°F).

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

Average daylight in December / Average sunshine in December - Stuart, 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 months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).

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Average sunshine days in December
Stuart, FL

Average sunshine days in December - Stuart, FL
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is August (3.4 days).

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Average UV index in December
Stuart, FL

Average UV index in December - Stuart, FL
  • Average UV index in December: 5

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 December (UV index 5).

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Average cloud cover in December
Stuart, FL

Average cloud cover in December - Stuart, 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 May and July (Cloud cover 26).

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Average visibility in December
Stuart, FL

Average visibility in December - Stuart, 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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Stuart, Florida, USA

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