December Weather in Nelson, United States

Last updated: June 24, 2025

In December in Nelson, United States, the average temperature is a cool 7°C (46°F), with temperatures dipping as low as -8°C (18°F) and occasionally reaching a warm 23°C (73°F). Visitors can expect precipitation around 162 mm (6.4 in) over roughly 12 days, while the average humidity hangs around a high 88%. Be prepared for a mix of weather conditions!

December Temperature in Nelson

In December in Nelson, the average temperature is 7°C (46°F). Maximum can reach 23°C (73°F) and minimum can be as low as -8°C (18°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates December temperature patterns in Nelson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nelson, December typically has an average temperature of 7°C (46°F), with highs reaching up to 23°C (73°F) and lows dropping to around -8°C (18°F).

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

December Precipitation in Nelson

In Nelson in December, the total precipitation amount reaches 162 mm (6.4 in) over the course of 12 days.

December Precipitation Trends in Nelson

The chart displays monthly precipitation patterns in Nelson, 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 Nelson, December typically receives around 162 mm (6.4 inches) of precipitation spread over approximately 12 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 Nelson

In Nelson in December humidity is 88%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and requiring you to dress in layers to stay warm and dry while exploring.

December Average Humidity in Nelson

This chart illustrates the average monthly humidity levels in Nelson, 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 Nelson is approximately 88%, 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 Nelson

In Nelson in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Nelson for better planning.

Maximum UV Index Levels in Nelson for December

The chart shows the monthly maximum UV Index (UVI) for Nelson 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 Nelson typically reaches 4, which falls under the moderate exposure category.

Data source: Nelson 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 Nelson Compares to Other Months

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

This table compares monthly weather conditions in Nelson, 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 (43°F)	133 mm (5.2 inches)	86%	moderate
February Weather	9°C (48°F)	203 mm (8.0 inches)	86%	high
March Weather	12°C (53°F)	167 mm (6.6 inches)	86%	very high
April Weather	15°C (60°F)	150 mm (5.9 inches)	82%	very high
May Weather	20°C (68°F)	132 mm (5.2 inches)	85%	extreme
June Weather	23°C (73°F)	141 mm (5.6 inches)	85%	extreme
July Weather	25°C (77°F)	128 mm (5.1 inches)	83%	extreme
August Weather	24°C (76°F)	161 mm (6.3 inches)	76%	very high
September Weather	22°C (72°F)	121 mm (4.8 inches)	76%	very high
October Weather	17°C (63°F)	164 mm (6.5 inches)	80%	very high
November Weather	10°C (50°F)	96 mm (3.8 inches)	88%	high
December Weather	7°C (46°F)	162 mm (6.4 inches)	88%	moderate