December weather forecast
Sydney, FL

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Weather in December

December, the first month of the winter in Sydney, is still a pleasant month, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 56.8°F (13.8°C).

Temperature

December's weather displays an average high-temperature of a pleasant 72.5°F (22.5°C), slightly varied from November's 76.6°F (24.8°C). Sydney's temperature tends to fall to an average low of 56.8°F (13.8°C) during the nights of December.

Humidity

In December, the average relative humidity is 76%.

Rainfall

In Sydney, Florida, during December, the rain falls for 9.5 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, in Sydney, there are 192.2 rainfall days, and 37.91" (963mm) of precipitation is accumulated.

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 7:03 am and sunset at 5:32 pm. On the last day of December, sunrise is at 7:19 am and sunset at 5:44 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 6.2h of sunshine.

UV index

In December, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in December converts into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. To protect against the Sun's most potent rays, avoid direct exposure around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What is the usual temperature for Sydney in December?

The high-temperature in Sydney, Florida, during December is 72.5°F (22.5°C) and the low-temperature is 56.8°F (13.8°C). In October, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in December in Sydney?

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

How much does it rain in Sydney in December?

In Sydney, during December, the rain falls for 9.5 days and regularly aggregates up to 1.73" (44mm) of precipitation.

What is the month with the shortest days in Sydney?

With an average of 10h and 24min of daylight, December has the shortest days of the year.

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

In Sydney, the average day length in December is 10h and 25min.

When is the sunrise / sunset in December in Sydney?

In December, on the first day of the month, sunrise is at 7:03 am and sunset at 5:32 pm. On the last day of the month, in Sydney, sunrise is at 7:19 am and sunset at 5:44 pm EST.

What is the month with the least sunshine in Sydney?

The month with the least sunshine in Sydney, Florida, is December, with an average of 6.2h of sunshine.

How long on average sun shines in December in Sydney?

In Sydney, the average sunshine duration in December is 6.2h.

What is the UV index reading in December in Sydney?

The average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
Sydney, FL

Average temperature in December - Sydney, FL
  • Average high temperature in December: 72.5°F

The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (68.9°F).

  • Average low temperature in December: 56.8°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (51.8°F).

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Average pressure in December
Sydney, FL

Average pressure in December - Sydney, FL
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in December
Sydney, FL

Average wind speed in December - Sydney, FL
  • Average wind speed in December: 6.3mph

The windiest month (with the highest average wind speed) is March (6.9mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

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Average humidity in December
Sydney, FL

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

The month with the highest relative humidity is September (78%).
The months with the lowest relative humidity are March and May (71%).

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Average rainfall in December
Sydney, FL

Average rainfall in December - Sydney, FL
  • Average rainfall in December: 1.73"

The wettest month (with the highest rainfall) is August (6.93").
The driest month (with the least rainfall) is February (1.22").

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Average rainfall days in December
Sydney, FL

Average rainfall days in December - Sydney, FL
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (8.8 days).

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

Average daylight in December / Average sunshine in December - Sydney, 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 May (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

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Average sunshine days in December
Sydney, FL

Average sunshine days in December - Sydney, FL
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (2.7 days).

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Average UV index in December
Sydney, FL

Average UV index in December - Sydney, 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 month with the lowest UV index is January (UV index 4).

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Average cloud cover in December
Sydney, FL

Average cloud cover in December - Sydney, FL
  • Average cloud cover in December: 34

The month with the most cloud cover is February (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 26).

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Average visibility in December
Sydney, FL

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

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