December weather forecast
Port Aransas, TX

Weather in December

The first month of the winter, December, is also an enjoyable month in Port Aransas, Texas, with an average temperature ranging between min 57.6°F (14.2°C) and max 65.1°F (18.4°C).

Temperature

In December, the average high-temperature marginally drops from a pleasant 71.1°F (21.7°C) in November to an enjoyable 65.1°F (18.4°C). In December, the average low-temperature is 57.6°F (14.2°C).

Humidity

In December, the average relative humidity in Port Aransas, Texas, is 78%.

Rainfall

In Port Aransas, during 9.8 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. Throughout the year, in Port Aransas, Texas, there are 126.5 rainfall days, and 14.57" (370mm) of precipitation is accumulated.

Snowfall

January, March through December are months without snowfall.

Ocean temperature

In Port Aransas, Texas, the average seawater temperature in December is 66.4°F (19.1°C).
Note: Swimming in 66.4°F (19.1°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

Daylight

The month with the shortest days is December, with an average of 10h and 25min of daylight.
On the first day of the month, sunrise is at 7:01 am and sunset at 5:32 pm. On the last day of December, in Port Aransas, sunrise is at 7:18 am and sunset at 5:43 pm CST.

Sunshine

With an average of 4.8h of sunshine, December has the least sunshine of the year in Port Aransas.

UV index

January and December, with an average maximum UV index of 4, are months with the lowest UV index in Port Aransas. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in December interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in December in Port Aransas?

The average high-temperature, in December, in Port Aransas, is 65.1°F (18.4°C), while the average low-temperature is 57.6°F (14.2°C). in September, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 95°F (35°C).

What is the average humidity in December in Port Aransas?

The average relative humidity in December in Port Aransas is 78%.

How much does it rain in Port Aransas in December?

In Port Aransas, Texas, during December, the rain falls for 9.8 days and regularly aggregates up to 0.98" (25mm) of precipitation.

When it does not snow in Port Aransas?

In Port Aransas, snow does not fall in January, March through December.

What is the ocean temperature in December in Port Aransas?

In Port Aransas, the average seawater temperature in December is 66.4°F (19.1°C). For swimming, a surface water temperature of 66.4°F (19.1°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the month with the shortest days in Port Aransas?

The month with the shortest days is December, with an average of 10h and 25min of daylight.

What is the average length of the day in December in Port Aransas?

The average day length in December in Port Aransas is 10h and 25min.

What time are sunrise and sunset in December in Port Aransas?

On the first day of December, sunrise is at 7:01 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:43 pm CST.

What is the month with the least sunshine in Port Aransas?

With an average of 4.8h of sunshine, December has the least sunshine of the year in Port Aransas.

How many hours of sunshine does Port Aransas have in December?

In Port Aransas, Texas, the average sunshine duration in December is 4.8h.

When is the lowest UV index in Port Aransas?

The months with the lowest UV index are January and December, with an average maximum UV index of 4.

How high is the UV index in December in Port Aransas?

The average daily maximum UV index in December in Port Aransas, Texas, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Port Aransas, TX

Average temperature in December - Port Aransas, TX
  • Average high temperature in December: 65.1°F

The warmest month (with the highest average high temperature) is August (86.7°F).
The month with the lowest average high temperature is January (62.6°F).

  • Average low temperature in December: 57.6°F

The month with the highest average low temperature is August (82°F).
The coldest month (with the lowest average low temperature) is January (54.9°F).

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Average pressure in December
Port Aransas, TX

Average pressure in December - Port Aransas, TX
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in December
Port Aransas, TX

Average wind speed in December - Port Aransas, TX
  • Average wind speed in December: 12.5mph

The windiest months (with the highest average wind speed) are April and May (14.2mph).
The calmest month (with the lowest average wind speed) is September (11.3mph).

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Average humidity in December
Port Aransas, TX

Average humidity in December - Port Aransas, TX
  • Average humidity in December: 78%

The months with the highest relative humidity are March and May (81%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in December
Port Aransas, TX

Average rainfall in December - Port Aransas, TX
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is September (2.99").
The driest months (with the least rainfall) are February and March (0.51").

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Average rainfall days in December
Port Aransas, TX

Average rainfall days in December - Port Aransas, TX
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is September (17.8 days).
The month with the least rainy days is February (7.8 days).

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Average snowfall in December
Port Aransas, TX

Average snowfall in December - Port Aransas, TX
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Port Aransas, TX

Average snowfall days in December - Port Aransas, TX
  • Average snowfall days in December: 0 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, October, November and December (0 days).

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Average sea temperature in December
Port Aransas, TX

Average sea temperature in December - Port Aransas, TX
  • Average sea temperature in December: 66.4°F

The best month for swimming (with the highest average sea temperature) is August (86.1°F).
The coldest month (with the lowest average sea temperature) is February (61.3°F).

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Average daylight in December /
Average sunshine in December
Port Aransas, TX

Average daylight in December / Average sunshine in December - Port Aransas, TX
  • Average daylight in December: 10h and 25min

The month with the longest days is June (Average daylight: 13h and 53min).
The month with the shortest days is December (Average daylight: 10h and 25min).

  • Average sunshine in December: 4h and 48min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in December
Port Aransas, TX

Average sunshine days in December - Port Aransas, TX
  • Average sunshine days in December: 17.8 days

The month with the most sunshine days is March (20.5 days).
The month with the least sunshine days is September (10.3 days).

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Average UV index in December
Port Aransas, TX

Average UV index in December - Port Aransas, TX
  • Average UV index in December: 4

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 4).

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Average cloud cover in December
Port Aransas, TX

Average cloud cover in December - Port Aransas, TX
  • Average cloud cover in December: 47

The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in December
Port Aransas, TX

Average visibility in December - Port Aransas, TX
  • 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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