December weather forecast
Oldsmar, FL

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Weather in December

The first month of the winter, December, is still a pleasant month in Oldsmar, Florida, with an average temperature ranging between min 59.5°F (15.3°C) and max 70.2°F (21.2°C).

Temperature

December's advent notes a subtle adjustment in average high-temperature to an agreeable 70.2°F (21.2°C) from November. During December, Oldsmar records an average temperature of 59.5°F (15.3°C) at night.

Humidity

The most humid month in Oldsmar is December, with an average relative humidity of 77%.

Rainfall

In Oldsmar, in December, during 9 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, in Oldsmar, Florida, there are 168.5 rainfall days, and 27.4" (696mm) of precipitation is accumulated.

Ocean temperature

In December, the average ocean temperature in Oldsmar is 65.1°F (18.4°C).
Note: Swimming is not a pleasant activity for most when the water temperature is 65.1°F (18.4°C). As the water temperature drops from 69.8°F (21°C) to 59°F (15°C), breathing becomes more difficult to control.

Daylight

With an average of 10h and 24min of daylight, December has the shortest days of the year in Oldsmar.
On the first day of the month, sunrise is at 7:05 am and sunset at 5:34 pm. On the last day of December, in Oldsmar, sunrise is at 7:21 am and sunset at 5:45 pm EST.

Sunshine

The month with the least sunshine is December, with an average of 6.5h of sunshine.

UV index

In Oldsmar, the average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 5 in December translates into these instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. 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 temperature in December in Oldsmar?

The high-temperature, in December, in Oldsmar, records 70.2°F (21.2°C), while the low-temperature is 59.5°F (15.3°C). In October, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What is the most humid month in Oldsmar?

With an average relative humidity of 77%, December is the most humid month.

What is the average humidity in December in Oldsmar?

In December, the average relative humidity is 77%.

How much does it rain in Oldsmar in December?

In Oldsmar, Florida, in December, it is raining for 9 days, with typically 1.77" (45mm) of accumulated precipitation.

How cold is the water in December in Oldsmar?

In December, the average ocean temperature in Oldsmar is 65.1°F (18.4°C). For most, swimming in 65.1°F (18.4°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the month with the shortest days in Oldsmar?

The month with the shortest days is December, with an average of 10h and 24min of daylight.

How many hours of daylight does Oldsmar have in December?

The average day length in December in Oldsmar, Florida, is 10h and 24min.

When is the sunrise / sunset in December in Oldsmar?

On the first day of December in Oldsmar, sunrise is at 7:05 am and sunset at 5:34 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:45 pm EST.

What is the month with the least sunshine in Oldsmar?

With an average of 6.5h of sunshine, December has the least sunshine of the year in Oldsmar.

How long on average sun shines in December in Oldsmar?

In December, the average sunshine duration in Oldsmar, Florida, is 6.5h.

What is the UV index intensity in December in Oldsmar?

In December, the average daily maximum UV index in Oldsmar is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Oldsmar, FL

Average temperature in December - Oldsmar, FL
  • Average high temperature in December: 70.2°F

The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (65.7°F).

  • Average low temperature in December: 59.5°F

The month with the highest average low temperature is August (80.4°F).
The coldest month (with the lowest average low temperature) is January (55°F).

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Average pressure in December
Oldsmar, FL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in December
Oldsmar, FL

Average wind speed in December - Oldsmar, FL
  • Average wind speed in December: 8.8mph

The windiest months (with the highest average wind speed) are January and March (9.3mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in December
Oldsmar, FL

Average humidity in December - Oldsmar, FL
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are May and October (72%).

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Average rainfall in December
Oldsmar, FL

Average rainfall in December - Oldsmar, FL
  • Average rainfall in December: 1.77"

The wettest month (with the highest rainfall) is August (5.16").
The driest month (with the least rainfall) is March (0.79").

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Average rainfall days in December
Oldsmar, FL

Average rainfall days in December - Oldsmar, FL
  • Average rainfall days in December: 9 days

The month with the highest number of rainy days is July (25.6 days).
The month with the least rainy days is November (7.6 days).

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Average sea temperature in December
Oldsmar, FL

Average sea temperature in December - Oldsmar, FL
  • Average sea temperature in December: 65.1°F

The best month for swimming (with the highest average sea temperature) is August (86.6°F).
The coldest month (with the lowest average sea temperature) is January (61.1°F).

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

Average daylight in December / Average sunshine in December - Oldsmar, 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 3min

The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in December
Oldsmar, FL

Average sunshine days in December - Oldsmar, FL
  • Average sunshine days in December: 20.2 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (3.6 days).

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Average UV index in December
Oldsmar, FL

Average UV index in December - Oldsmar, 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
Oldsmar, FL

Average cloud cover in December - Oldsmar, FL
  • Average cloud cover in December: 30

The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).

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Average visibility in December
Oldsmar, FL

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

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