December Weather in Bourne, United States

Last updated: June 24, 2025

In December, the average temperature in Bourne, United States hovers around 4°C (39°F). Be prepared for chilly spells, as temperatures can dip to a brisk -13°C (8°F), while highs can reach a mild 16°C (62°F). Expect 121 mm (4.8 in) of precipitation over about 10 days, and with an average humidity of 80%, a cozy umbrella will be your best companion!

December Temperature in Bourne

In December in Bourne, the average temperature is 4°C (39°F). Maximum temperatures can reach 16°C (62°F), while the minimum can drop as low as -13°C (8°F). Be prepared for a wide range of temperatures and pack accordingly to ensure a comfortable visit.

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

The chart illustrates December temperature patterns in Bourne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bourne, December typically has an average temperature of 4°C (39°F), with highs reaching up to 16°C (62°F) and lows dropping to around -13°C (8°F).

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

December Precipitation in Bourne

In Bourne in December, the precipitation amount is 121 mm (4.8 in) spread over a period of 10 days.

December Precipitation Trends in Bourne

The chart displays monthly precipitation patterns in Bourne, 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 Bourne, December typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 10 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 Bourne

In Bourne in December, humidity is 80%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring extra layers to stay warm while navigating through the misty streets.

December Average Humidity in Bourne

This chart illustrates the average monthly humidity levels in Bourne, 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 Bourne is approximately 80%, 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 Bourne

In Bourne 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 Bourne, you can visit Hourly UV Index in Bourne.

Maximum UV Index Levels in Bourne for December

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

Data source: Bourne 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 Bourne Compares to Other Months

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

This table compares monthly weather conditions in Bourne, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (35°F)	86 mm (3.4 inches)	84%	moderate
February Weather	2°C (36°F)	103 mm (4.1 inches)	84%	moderate
March Weather	4°C (39°F)	112 mm (4.4 inches)	82%	high
April Weather	8°C (47°F)	125 mm (4.9 inches)	79%	very high
May Weather	13°C (56°F)	102 mm (4.0 inches)	75%	very high
June Weather	19°C (66°F)	87 mm (3.4 inches)	78%	very high
July Weather	23°C (73°F)	91 mm (3.6 inches)	76%	very high
August Weather	23°C (73°F)	78 mm (3.1 inches)	76%	very high
September Weather	19°C (67°F)	108 mm (4.2 inches)	75%	very high
October Weather	15°C (59°F)	151 mm (5.9 inches)	75%	high
November Weather	8°C (47°F)	93 mm (3.7 inches)	80%	moderate
December Weather	4°C (39°F)	121 mm (4.8 inches)	80%	low