December Weather in Morgan City, United States

Last updated: June 24, 2025

In December, the average temperature in Morgan City, 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 Morgan City

In December in Morgan City, 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 Morgan City, balancing comfortable warmth with cooler evenings for a diverse travel experience.

December Weather in Morgan City: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Morgan City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Morgan City, 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).
JanFebMarAprMayJunJulAugSepOctNovDec556065707781828280736158
Data source: Temperature data for Morgan City generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Morgan City

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

December Precipitation Trends in Morgan City

The chart displays monthly precipitation patterns in Morgan City, 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 Morgan City, December typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8997591151492102262111691126596
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Morgan City

In Morgan City 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 Morgan City

This chart illustrates the average monthly humidity levels in Morgan City, 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 Morgan City is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%81%79%81%77%74%74%73%79%77%81%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Morgan City

In Morgan City 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 Morgan City.

Maximum UV Index Levels in Morgan City for December

The chart shows the monthly maximum UV Index (UVI) for Morgan City 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 Morgan City typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121211975
Data source: Morgan City 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 Morgan City Compares to Other Months

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

This table compares monthly weather conditions in Morgan City, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (55°F)89 mm (3.5 inches)81%moderate
February Weather16°C (60°F)97 mm (3.8 inches)81%very high
March Weather19°C (66°F)59 mm (2.3 inches)79%very high
April Weather21°C (70°F)115 mm (4.5 inches)81%extreme
May Weather25°C (77°F)149 mm (5.9 inches)77%extreme
June Weather27°C (82°F)210 mm (8.3 inches)74%extreme
July Weather28°C (83°F)226 mm (8.9 inches)74%extreme
August Weather28°C (82°F)211 mm (8.3 inches)73%extreme
September Weather26°C (80°F)169 mm (6.6 inches)79%extreme
October Weather23°C (74°F)112 mm (4.4 inches)77%very high
November Weather16°C (62°F)65 mm (2.6 inches)81%high
December Weather14°C (58°F)96 mm (3.8 inches)84%moderate

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