December Weather in Cudjoe Key, United States

Last updated: June 24, 2025

In December, the average temperature in Cudjoe Key, United States hovers around 23°C (73°F), creating a pleasant atmosphere. Temperatures can dip to a minimum of 14°C (58°F) and rise to a maximum of 26°C (79°F), offering a comfortable range for outdoor activities. Expect some precipitation, with an average of 36 mm (1.4 in) over approximately 4 days. With an average humidity of 81%, the air carries a refreshing balance, perfect for enjoying the local scenery.

December Temperature in Cudjoe Key

In December in Cudjoe Key, the average temperature is 23°C (73°F). Maximums can reach 26°C (79°F), and minimums can drop as low as 14°C (58°F). This makes it an ideal time for travelers seeking pleasant weather and outdoor activities.

December Weather in Cudjoe Key: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Cudjoe Key, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cudjoe Key, December typically has an average temperature of 23°C (73°F), with highs reaching up to 26°C (79°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec707373777982838482817673
Data source: Temperature data for Cudjoe Key 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 Cudjoe Key

In Cudjoe Key in December, the precipitation amount is 36 mm (1.4 in) over the course of 4 days.

December Precipitation Trends in Cudjoe Key

The chart displays monthly precipitation patterns in Cudjoe Key, 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 Cudjoe Key, December typically receives around 36 mm (1.4 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec242515421361051091111891317037
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cudjoe Key

In Cudjoe Key in December, humidity is 81%. With an average temperature of 23°C (73°F), this humidity feels like a heavy blanket wrapping around you, making every step feel more laborious while traveling and causing you to constantly seek out shade or a cool breeze for relief.

December Average Humidity in Cudjoe Key

This chart illustrates the average monthly humidity levels in Cudjoe Key, 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 Cudjoe Key is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%80%76%73%71%70%70%72%76%79%80%81%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cudjoe Key

In Cudjoe Key in December, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Cudjoe Key, you can refer to this Hourly UV Index in Cudjoe Key.

Maximum UV Index Levels in Cudjoe Key for December

The chart shows the monthly maximum UV Index (UVI) for Cudjoe Key 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 Cudjoe Key typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec69111212131212111086
Data source: Cudjoe Key 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 Cudjoe Key Compares to Other Months

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

This table compares monthly weather conditions in Cudjoe Key, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (71°F)24 mm (0.9 inches)81%high
February Weather23°C (73°F)25 mm (1.0 inches)79%very high
March Weather23°C (74°F)15 mm (0.6 inches)76%extreme
April Weather25°C (77°F)42 mm (1.7 inches)73%extreme
May Weather26°C (79°F)136 mm (5.4 inches)71%extreme
June Weather28°C (82°F)105 mm (4.1 inches)69%extreme
July Weather28°C (83°F)109 mm (4.3 inches)70%extreme
August Weather29°C (84°F)111 mm (4.4 inches)72%extreme
September Weather28°C (83°F)189 mm (7.4 inches)76%extreme
October Weather27°C (81°F)131 mm (5.2 inches)79%very high
November Weather25°C (77°F)70 mm (2.7 inches)80%very high
December Weather23°C (73°F)36 mm (1.4 inches)81%high

Compare Cudjoe Key's Climate with Cities Worldwide