December weather forecastBayou Vista, TX

December

Weather in December

The first month of the winter, December, is still a comfortable month in Bayou Vista, Texas, with temperature in the range of an average high of 62.8°F (17.1°C) and an average low of 54°F (12.2°C).

Temperature

December's arrival aligns with a minor decrease in average high-temperatures, from November's agreeable 69.1°F (20.6°C) to a refreshing 62.8°F (17.1°C). Bayou Vista notes a steady average temperature of 54°F (12.2°C) during the nights of December.

Humidity

In Bayou Vista, Texas, the average relative humidity in December is 78%.

Rainfall

In Bayou Vista, in December, during 14.8 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Bayou Vista, during the entire year, the rain falls for 182.9 days and collects up to 43.46" (1104mm) of precipitation.

Snowfall

Months with snowfall are January and December. The month with the most snowfall is December, when snow falls for 0.1 days and typically aggregates up to 0.12" (3mm) of snow.

Daylight

December has the shortest days of the year, with an average of 10h and 18min of daylight.
On the first day of December, sunrise is at 6:57 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:32 pm CST.

Sunshine

December has the least sunshine of the year, with an average of 4.8h of sunshine.

UV index

January and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 4 in December translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.

Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in December, in Bayou Vista, is 62.8°F (17.1°C), while the low-temperature averages to 54°F (12.2°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is appraised at 93.2°F (34°C).

In December, the average relative humidity is 78%.

In Bayou Vista, in December, it is raining for 14.8 days, with typically 2.6" (66mm) of accumulated precipitation.

The month with the most snowfall is December, when snow falls for 0.1 days and typically aggregates up to 0.12" (3mm) of snow.

December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.

December has the shortest days of the year, with an average of 10h and 18min of daylight.

In Bayou Vista, the average day length in December is 10h and 18min.

In December, on the first day of the month, sunrise is at 6:57 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:32 pm CST.

December has the least sunshine of the year, with an average of 4.8h of sunshine.

The average sunshine duration in December is 4.8h.

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

In Bayou Vista, the average daily maximum UV index in December is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

69.1°F

62.8°F

59.9°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.8mph

11.9mph

11.8mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

15.2

12.4

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Bayou Vista, TX

Average high temperature in December: 62.8°F

The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (59.9°F).

Average low temperature in December: 54°F

The month with the highest average low temperature is August (81.1°F).
The coldest month (with the lowest average low temperature) is January (50.7°F).

Average pressure in December
Bayou Vista, TX

Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Bayou Vista, TX

Average wind speed in December: 11.2mph

The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

Average humidity in December
Bayou Vista, TX

Average humidity in December: 78%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Bayou Vista, TX

Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is September (7.13").
The driest month (with the least rainfall) is February (1.73").

Average rainfall days in December
Bayou Vista, TX

Average rainfall days in December: 14.8 days

The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is November (12 days).

Average snowfall in December
Bayou Vista, TX

Average snowfall in December: 0.12"

The month with the highest snowfall is December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Bayou Vista, TX

Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Bayou Vista, TX

Average daylight in December: 10h and 18min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

Average sunshine in December: 4h and 48min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in December
Bayou Vista, TX

Average sunshine days in December: 12.4 days

The month with the most sunshine days is January (16 days).
The month with the least sunshine days is August (6.7 days).

Average UV index in December
Bayou Vista, TX

Average UV index in December: 4

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in December
Bayou Vista, TX

Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June, July, August and October (Cloud cover 27).

Average visibility in December
Bayou Vista, 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).