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December Weather in Clearwater, United States

Last updated: June 24, 2025

In December, the average temperature in Clearwater, United States hovers around 4°C (40°F). Temperatures can range significantly, with a minimum of -13°C (8°F) and a maximum peaking at 25°C (77°F). Expect 31 mm (1.2 in) of precipitation over 3 days, accompanied by an average humidity level of 83%.

December Temperature in Clearwater

In December in Clearwater, the average temperature is 4°C (40°F), with maximums reaching 25°C (77°F) and minimums dropping as low as -13°C (8°F). Be prepared for a wide range of temperatures during your travels, making it essential to pack accordingly.

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

The chart illustrates December temperature patterns in Clearwater, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clearwater, December typically has an average temperature of 4°C (40°F), with highs reaching up to 25°C (77°F) and lows dropping to around -13°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec343549566778817974584639
Data source: Temperature data for Clearwater 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 Clearwater

In Clearwater in December, the precipitation amount is 31 mm (1.2 in) over the course of 3 days.

December Precipitation Trends in Clearwater

The chart displays monthly precipitation patterns in Clearwater, 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 Clearwater, December typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec362981761601026380761172631
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Clearwater

In Clearwater in December humidity is 83%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring you to bundle up while bracing against the heavy, cold air.

December Average Humidity in Clearwater

This chart illustrates the average monthly humidity levels in Clearwater, 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 Clearwater is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%76%67%70%82%82%81%76%67%72%80%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Clearwater

In Clearwater in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Clearwater, you can check the information here.

Maximum UV Index Levels in Clearwater for December

The chart shows the monthly maximum UV Index (UVI) for Clearwater 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 Clearwater typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Clearwater 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 Clearwater Compares to Other Months

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

This table compares monthly weather conditions in Clearwater, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)36 mm (1.4 inches)75%moderate
February Weather2°C (35°F)29 mm (1.2 inches)76%high
March Weather10°C (49°F)81 mm (3.2 inches)67%high
April Weather13°C (56°F)76 mm (3.0 inches)70%very high
May Weather19°C (67°F)160 mm (6.3 inches)82%very high
June Weather26°C (78°F)102 mm (4.0 inches)82%extreme
July Weather27°C (81°F)63 mm (2.5 inches)81%extreme
August Weather26°C (79°F)80 mm (3.1 inches)76%very high
September Weather23°C (74°F)76 mm (3.0 inches)67%very high
October Weather15°C (59°F)117 mm (4.6 inches)72%high
November Weather8°C (46°F)26 mm (1.0 inches)80%moderate
December Weather4°C (40°F)31 mm (1.2 inches)83%moderate

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