December Weather in Carmel, United States

Last updated: June 24, 2025

In Carmel, United States, the average temperature in December hovers around -3°C (26°F). Temperatures can plummet to a chilling -25°C (-12°F) or rise to a more temperate 15°C (59°F). Expect some moisture, with an average precipitation of 113 mm (4.5 in) distributed over 11 days. Additionally, the air tends to be quite damp, with an average humidity level of 84%.

December Temperature in Carmel

In December in Carmel, the average temperature is -3°C (26°F). Maximum temperatures can reach 15°C (59°F), while the minimum can drop as low as -25°C (-12°F). Be sure to pack warm clothing and prepare for a range of temperatures during your travels.

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

The chart illustrates December temperature patterns in Carmel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carmel, December typically has an average temperature of -3°C (26°F), with highs reaching up to 15°C (59°F) and lows dropping to around -25°C (-12°F).

Data source: Temperature data for Carmel generated using information from the Copernicus Climate Change Service.

December Precipitation in Carmel

In Carmel in December, the total precipitation amount is 113 mm (4.5 in), spread over a period of 11 days.

December Precipitation Trends in Carmel

The chart displays monthly precipitation patterns in Carmel, 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 Carmel, December typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Carmel

In Carmel in December, humidity is 84%. With an average temperature of -3°C (26°F), this humidity feels like an icy mist clinging to your skin, making every breath a struggle as the cold seeps in, creating a challenging environment for traveling.

December Average Humidity in Carmel

This chart illustrates the average monthly humidity levels in Carmel, 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 Carmel is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Carmel

In Carmel in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Carmel, you can visit Hourly UV Index in Carmel.

Maximum UV Index Levels in Carmel for December

The chart shows the monthly maximum UV Index (UVI) for Carmel 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 Carmel typically reaches 2, which falls under the low exposure category.

Data source: Carmel 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 Carmel Compares to Other Months

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

This table compares monthly weather conditions in Carmel, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	87 mm (3.4 inches)	88%	low
February Weather	-5°C (24°F)	80 mm (3.2 inches)	88%	moderate
March Weather	-1°C (31°F)	69 mm (2.7 inches)	85%	moderate
April Weather	6°C (43°F)	120 mm (4.7 inches)	81%	high
May Weather	12°C (54°F)	90 mm (3.6 inches)	76%	very high
June Weather	18°C (64°F)	77 mm (3.0 inches)	74%	very high
July Weather	21°C (70°F)	100 mm (3.9 inches)	74%	very high
August Weather	20°C (69°F)	77 mm (3.0 inches)	74%	very high
September Weather	16°C (62°F)	72 mm (2.8 inches)	77%	high
October Weather	10°C (50°F)	119 mm (4.7 inches)	82%	moderate
November Weather	3°C (37°F)	114 mm (4.5 inches)	85%	moderate
December Weather	-3°C (26°F)	113 mm (4.5 inches)	84%	low