December Weather in Bayou Vista, United States

Last updated: June 24, 2025

In December, the average temperature in Bayou Vista, United States hovers around 14°C (58°F), offering a comfortable climate. However, be prepared for fluctuations, as temperatures can dip to a chilly 0°C (32°F) or rise to a warm 27°C (82°F). With an average precipitation of 96 mm (3.8 in) spread over about 10 days, you might encounter some rain. Additionally, expect a high average humidity of 84%, which adds to the overall moisture in the air.

December Temperature in Bayou Vista

In December in Bayou Vista, the average temperature is 14°C (58°F), with maximums reaching up to 27°C (82°F) and minimums dipping as low as 0°C (32°F). This makes it a great time to visit Bayou Vista, balancing comfortable warmth with cooler evenings for a diverse travel experience.

December Weather in Bayou Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Bayou Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayou Vista, December typically has an average temperature of 14°C (58°F), with highs reaching up to 27°C (82°F) and lows dropping to around 0°C (32°F).

Data source: Temperature data for Bayou Vista generated using information from the Copernicus Climate Change Service.

December Precipitation in Bayou Vista

In Bayou Vista in December, the total precipitation amount is 96 mm (3.8 in) over a span of 10 days.

December Precipitation Trends in Bayou Vista

The chart displays monthly precipitation patterns in Bayou Vista, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Bayou Vista, December typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Bayou Vista

In Bayou Vista in December humidity is 84%. With an average temperature of 14°C (58°F), this humidity feels like a heavy blanket enveloping you, making every step feel sluggish and damp, which can be uncomfortable for traveling.

December Average Humidity in Bayou Vista

This chart illustrates the average monthly humidity levels in Bayou Vista, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Bayou Vista is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bayou Vista

In Bayou Vista in December, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Bayou Vista.

Maximum UV Index Levels in Bayou Vista for December

The chart shows the monthly maximum UV Index (UVI) for Bayou Vista in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Bayou Vista typically reaches 5, which falls under the moderate exposure category.

Data source: Bayou Vista December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Bayou Vista Compares to Other Months

Weather in Bayou Vista varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Bayou Vista, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Bayou Vista, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (55°F)	89 mm (3.5 inches)	81%	moderate
February Weather	16°C (60°F)	97 mm (3.8 inches)	81%	very high
March Weather	19°C (66°F)	59 mm (2.3 inches)	79%	very high
April Weather	21°C (70°F)	115 mm (4.5 inches)	81%	extreme
May Weather	25°C (77°F)	149 mm (5.9 inches)	77%	extreme
June Weather	27°C (82°F)	210 mm (8.3 inches)	74%	extreme
July Weather	28°C (83°F)	226 mm (8.9 inches)	74%	extreme
August Weather	28°C (82°F)	211 mm (8.3 inches)	73%	extreme
September Weather	26°C (80°F)	169 mm (6.6 inches)	79%	extreme
October Weather	23°C (74°F)	112 mm (4.4 inches)	77%	very high
November Weather	16°C (62°F)	65 mm (2.6 inches)	81%	high
December Weather	14°C (58°F)	96 mm (3.8 inches)	84%	moderate