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December Weather in Sealy, United States

Last updated: June 24, 2025

In December, the average temperature in Sealy, United States hovers around 14°C (58°F). Visitors can expect a range, with minimum temperatures dropping to -3°C (28°F) and maximums reaching 29°C (84°F). Prepare for some wet weather, as the area receives about 97 mm (3.8 in) of precipitation over 8 days of the month, all while maintaining an average humidity of 84%.

December Temperature in Sealy

In December in Sealy, the average temperature is 14°C (58°F). Maximum temperatures can reach 29°C (84°F), while minimums can drop as low as -3°C (28°F). Be prepared for a wide range of temperatures during your visit.

December Weather in Sealy: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Sealy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sealy, December typically has an average temperature of 14°C (58°F), with highs reaching up to 29°C (84°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec545765707882848580726257
Data source: Temperature data for Sealy 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 Sealy

In Sealy in December, the total precipitation amount is 97 mm (3.8 in), occurring over a span of 8 days.

December Precipitation Trends in Sealy

The chart displays monthly precipitation patterns in Sealy, 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 Sealy, December typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec70836774159138105151129827497
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Sealy

In Sealy 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 Sealy

This chart illustrates the average monthly humidity levels in Sealy, 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 Sealy is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%81%76%79%79%74%72%68%73%75%78%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Sealy

In Sealy 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 Sealy.

Maximum UV Index Levels in Sealy for December

The chart shows the monthly maximum UV Index (UVI) for Sealy 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 Sealy typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121211975
Data source: Sealy 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 Sealy Compares to Other Months

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

This table compares monthly weather conditions in Sealy, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)70 mm (2.8 inches)78%moderate
February Weather14°C (57°F)83 mm (3.3 inches)81%very high
March Weather19°C (66°F)67 mm (2.6 inches)76%very high
April Weather21°C (70°F)74 mm (2.9 inches)79%extreme
May Weather26°C (78°F)159 mm (6.3 inches)79%extreme
June Weather28°C (83°F)138 mm (5.4 inches)74%extreme
July Weather29°C (84°F)105 mm (4.1 inches)71%extreme
August Weather30°C (86°F)151 mm (5.9 inches)68%extreme
September Weather27°C (81°F)129 mm (5.1 inches)73%extreme
October Weather22°C (72°F)82 mm (3.2 inches)75%very high
November Weather17°C (62°F)74 mm (2.9 inches)78%high
December Weather14°C (58°F)97 mm (3.8 inches)84%moderate

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