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December Weather in Mer Rouge, United States

Last updated: June 24, 2025

In December, the average temperature in Mer Rouge, United States hovers around 11°C (52°F), with extremes ranging from a brisk -4°C (25°F) to a warm 28°C (83°F). Expect 116 mm (4.6 in) of precipitation spread over approximately 9 days, creating a humid environment with an average humidity level of 88%.

December Temperature in Mer Rouge

In December in Mer Rouge, the average temperature is 11°C (52°F). The maximum can reach 28°C (83°F), while the minimum can dip as low as -4°C (25°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your travels.

December Weather in Mer Rouge: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mer Rouge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mer Rouge, December typically has an average temperature of 11°C (52°F), with highs reaching up to 28°C (83°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec485261657480838279685552
Data source: Temperature data for Mer Rouge 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 Mer Rouge

In Mer Rouge in December, the precipitation amount is 116 mm (4.6 in) spread over 9 days.

December Precipitation Trends in Mer Rouge

The chart displays monthly precipitation patterns in Mer Rouge, 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 Mer Rouge, December typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec129200155178130114102927314287116
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mer Rouge

In Mer Rouge in December, humidity is 88%. With an average temperature of 11°C (52°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and the air feel thick, encouraging you to seek shelter or stay hydrated as you explore.

December Average Humidity in Mer Rouge

This chart illustrates the average monthly humidity levels in Mer Rouge, 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 Mer Rouge is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%80%82%83%80%80%75%73%76%84%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Mer Rouge

In Mer Rouge in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Mer Rouge for better planning.

Maximum UV Index Levels in Mer Rouge for December

The chart shows the monthly maximum UV Index (UVI) for Mer Rouge 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 Mer Rouge typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47811111212119864
Data source: Mer Rouge 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 Mer Rouge Compares to Other Months

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

This table compares monthly weather conditions in Mer Rouge, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)129 mm (5.1 inches)84%moderate
February Weather11°C (52°F)200 mm (7.9 inches)83%high
March Weather16°C (61°F)155 mm (6.1 inches)80%very high
April Weather18°C (65°F)178 mm (7.0 inches)82%extreme
May Weather23°C (74°F)130 mm (5.1 inches)83%extreme
June Weather27°C (80°F)114 mm (4.5 inches)80%extreme
July Weather28°C (83°F)102 mm (4.0 inches)80%extreme
August Weather28°C (82°F)92 mm (3.6 inches)75%extreme
September Weather26°C (79°F)73 mm (2.9 inches)73%very high
October Weather20°C (68°F)142 mm (5.6 inches)76%very high
November Weather13°C (55°F)86 mm (3.4 inches)84%high
December Weather11°C (52°F)116 mm (4.6 inches)88%moderate

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