December Weather in Bethlehem, New Zealand

Last updated: August 31, 2025

In December, the average temperature in Bethlehem, New Zealand hovers around 18°C (64°F), with lows reaching 7°C (45°F) and highs peaking at 27°C (81°F). Expect 127 mm (5.0 in) of precipitation over approximately 15 days, contributing to an average humidity of 74%.

December Temperature in Bethlehem

In December in Bethlehem, the average temperature is 18°C (64°F). Maximum temperatures can reach 27°C (81°F), while the minimum can drop to as low as 7°C (45°F). This mild climate makes it a perfect time for outdoor activities and exploring the local attractions.

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

The chart illustrates December temperature patterns in Bethlehem, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethlehem, December typically has an average temperature of 18°C (64°F), with highs reaching up to 27°C (81°F) and lows dropping to around 7°C (45°F).

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

December Precipitation in Bethlehem

In Bethlehem in December, the total precipitation amount is 127 mm (5.0 in) distributed over 15 days.

December Precipitation Trends in Bethlehem

The chart displays monthly precipitation patterns in Bethlehem, 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 Bethlehem, December typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 15 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 Bethlehem

In Bethlehem in December humidity is 74%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls but potentially uncomfortable for extended outdoor activities.

December Average Humidity in Bethlehem

This chart illustrates the average monthly humidity levels in Bethlehem, 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 Bethlehem is approximately 74%, 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 Bethlehem

In Bethlehem in December, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Bethlehem.

Maximum UV Index Levels in Bethlehem for December

The chart shows the monthly maximum UV Index (UVI) for Bethlehem 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 Bethlehem typically reaches 13, which falls under the extreme exposure category.

Data source: Bethlehem 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 Bethlehem Compares to Other Months

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

This table compares monthly weather conditions in Bethlehem, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	19°C (66°F)	77 mm (3.0 inches)	75%	extreme
February Weather	19°C (67°F)	114 mm (4.5 inches)	73%	extreme
March Weather	17°C (64°F)	122 mm (4.8 inches)	73%	very high
April Weather	15°C (59°F)	158 mm (6.2 inches)	73%	high
May Weather	12°C (54°F)	104 mm (4.1 inches)	79%	moderate
June Weather	10°C (51°F)	123 mm (4.9 inches)	81%	moderate
July Weather	9°C (49°F)	128 mm (5.0 inches)	82%	moderate
August Weather	10°C (50°F)	146 mm (5.7 inches)	79%	moderate
September Weather	11°C (52°F)	127 mm (5.0 inches)	77%	high
October Weather	13°C (56°F)	127 mm (5.0 inches)	76%	very high
November Weather	15°C (60°F)	115 mm (4.5 inches)	75%	extreme
December Weather	18°C (64°F)	127 mm (5.0 inches)	74%	extreme