December Weather in Bethel, United States

Last updated: June 24, 2025

In December, the average temperature in Bethel, United States hovers around 9°C (48°F), with a considerable range where temperatures can dip to a brisk -9°C (16°F) or rise to a warm 25°C (77°F). Expect an average precipitation of 99 mm (3.9 in) spread across 9 days, accompanied by high humidity levels at 86%.

December Temperature in Bethel

In December in Bethel, the average temperature is 9°C (48°F). Maximums can reach 25°C (77°F) and minimums can be as low as -9°C (16°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

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

The chart illustrates December temperature patterns in Bethel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethel, December typically has an average temperature of 9°C (48°F), with highs reaching up to 25°C (77°F) and lows dropping to around -9°C (16°F).

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

December Precipitation in Bethel

In Bethel in December, the precipitation amount is 99 mm (3.9 in) during a span of 9 days.

December Precipitation Trends in Bethel

The chart displays monthly precipitation patterns in Bethel, 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 Bethel, December typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 9 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 Bethel

In Bethel in December, humidity is 86%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that wraps around you, making outdoor activities uncomfortable and travel less enjoyable.

December Average Humidity in Bethel

This chart illustrates the average monthly humidity levels in Bethel, 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 Bethel is approximately 86%, 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 Bethel

In Bethel 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 Bethel, you can check the information here.

Maximum UV Index Levels in Bethel for December

The chart shows the monthly maximum UV Index (UVI) for Bethel 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 Bethel typically reaches 3, which falls under the moderate exposure category.

Data source: Bethel 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 Bethel Compares to Other Months

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

This table compares monthly weather conditions in Bethel, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	91 mm (3.6 inches)	85%	moderate
February Weather	10°C (50°F)	90 mm (3.5 inches)	82%	high
March Weather	12°C (53°F)	69 mm (2.7 inches)	81%	very high
April Weather	17°C (63°F)	100 mm (4.0 inches)	80%	very high
May Weather	21°C (71°F)	108 mm (4.2 inches)	81%	extreme
June Weather	25°C (77°F)	129 mm (5.1 inches)	81%	very high
July Weather	27°C (81°F)	122 mm (4.8 inches)	81%	extreme
August Weather	26°C (79°F)	153 mm (6.0 inches)	80%	very high
September Weather	24°C (75°F)	121 mm (4.8 inches)	79%	very high
October Weather	19°C (67°F)	76 mm (3.0 inches)	80%	very high
November Weather	11°C (53°F)	92 mm (3.6 inches)	85%	moderate
December Weather	9°C (48°F)	99 mm (3.9 inches)	86%	moderate