December weather forecast
Indian River Shores, FL

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Weather in December

The first month of the winter, December, is still a warm month in Indian River Shores, Florida, with an average temperature fluctuating between 64°F (17.8°C) and 73.6°F (23.1°C).

Temperature

Indian River Shores, Florida, starts December with an average high-temperature of a still moderately hot 73.6°F (23.1°C), a minor shift from November's 76.3°F (24.6°C). During the month of December, the nighttime temperature falls to an average of 64°F (17.8°C).

Humidity

In Indian River Shores, the average relative humidity in December is 77%.

Rainfall

In Indian River Shores, during December, the rain falls for 9.4 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, in Indian River Shores, there are 153.2 rainfall days, and 13.15" (334mm) of precipitation is accumulated.

Ocean temperature

In December, the average ocean temperature is 75°F (23.9°C).
Note: Every individual's cold threshold differs, but factors like today's sunshine, wind, and temperature can tip the scales for a delightful swim in 75°F (23.9°C) waters. For reference, Olympians swim in waters of 77°F (25°C) to 82.4°F (28°C).

Daylight

With an average of 10h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:55 am and sunset at 5:26 pm. On the last day of December, sunrise is at 7:12 am and sunset at 5:37 pm EST.

Sunshine

The average sunshine in December in Indian River Shores is 6.2h.

UV index

January, February and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 5 in December transforms into this advice:
Guard yourself - Precautionary measures against sun damage are advocated. To guard against the harmful effects of the Sun, minimize exposure during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take note! Sand and water reflections strengthen the Sun's UV exposure.
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Frequently asked questions

What are the temperatures in Indian River Shores in December?

During December, Indian River Shores experiences an average high-temperature of 73.6°F (23.1°C) and a low-temperature of 64°F (17.8°C). In October, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is evaluated at 86°F (30°C).

What is the average humidity in December in Indian River Shores?

In Indian River Shores, the average relative humidity in December is 77%.

How many days does it rain in December in Indian River Shores?

In Indian River Shores, Florida, in December, during 9.4 rainfall days, 0.71" (18mm) of precipitation is typically accumulated.

How warm is the water in December in Indian River Shores?

In December, the average ocean temperature in Indian River Shores, Florida, is 75°F (23.9°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 75°F (23.9°C) water may be enjoyable.

What is the month with the shortest days in Indian River Shores?

The month with the shortest days in Indian River Shores, Florida, is December, with an average of 10h and 24min of daylight.

What is the average length of the day in December in Indian River Shores?

In Indian River Shores, the average day length in December is 10h and 25min.

When are sunrise and sunset in December in Indian River Shores?

In December, on the first day of the month, sunrise is at 6:55 am and sunset at 5:26 pm. On the last day of the month, in Indian River Shores, Florida, sunrise is at 7:12 am and sunset at 5:37 pm EST.

How long on average sun shines in December in Indian River Shores?

The average sunshine duration in December in Indian River Shores is 6.2h.

When is the lowest UV index in Indian River Shores?

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

What is the UV index intensity in December in Indian River Shores?

In December, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.

Average temperature in December
Indian River Shores, FL

Average temperature in December - Indian River Shores, FL
  • Average high temperature in December: 73.6°F

The warmest month (with the highest average high temperature) is August (87.4°F).
The month with the lowest average high temperature is January (70.2°F).

  • Average low temperature in December: 64°F

The month with the highest average low temperature is August (78.6°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).

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Average pressure in December
Indian River Shores, FL

Average pressure in December - Indian River Shores, FL
  • Average pressure in December: 30.1"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
Indian River Shores, FL

Average wind speed in December - Indian River Shores, FL
  • Average wind speed in December: 9.4mph

The windiest months (with the highest average wind speed) are January and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in December
Indian River Shores, FL

Average humidity in December - Indian River Shores, FL
  • Average humidity in December: 77%

The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in December
Indian River Shores, FL

Average rainfall in December - Indian River Shores, FL
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is August (2.48").
The driest month (with the least rainfall) is February (0.39").

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Average rainfall days in December
Indian River Shores, FL

Average rainfall days in December - Indian River Shores, FL
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is August (20.2 days).
The month with the least rainy days is February (7.7 days).

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Average sea temperature in December
Indian River Shores, FL

Average sea temperature in December - Indian River Shores, FL
  • Average sea temperature in December: 74.9°F

The best month for swimming (with the highest average sea temperature) is August (84.8°F).
The coldest months (with the lowest average sea temperature) are January and February (72.3°F).

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Average daylight in December /
Average sunshine in December
Indian River Shores, FL

Average daylight in December / Average sunshine in December - Indian River Shores, FL
  • Average daylight in December: 10h and 2min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in December: 6h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

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Average sunshine days in December
Indian River Shores, FL

Average sunshine days in December - Indian River Shores, FL
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is March (19.5 days).
The month with the least sunshine days is August (5.1 days).

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Average UV index in December
Indian River Shores, FL

Average UV index in December - Indian River Shores, 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, February and December (UV index 5).

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Average cloud cover in December
Indian River Shores, FL

Average cloud cover in December - Indian River Shores, FL
  • Average cloud cover in December: 35

The month with the most cloud cover is November (Cloud cover 36).
The months with the least cloud cover are May and August (Cloud cover 27).

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Average visibility in December
Indian River Shores, FL

Average visibility in December - Indian River Shores, 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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Indian River Shores, Florida, USA

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