September Weather in Bethlehem, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Bethlehem, New Zealand hovers around 11°C (52°F), with a minimum of 2°C (36°F) and a peak of 19°C (66°F). Expect about 127 mm (5.0 in) of precipitation spread over 14 days, contributing to an average humidity of 77%. Enjoy the unique weather while exploring the beauty of the season!

September Temperature in Bethlehem

In September in Bethlehem, the average temperature is 11°C (52°F). Maximums can reach 19°C (66°F), while minimums can dip as low as 2°C (36°F). It's advisable to pack layers to stay comfortable during your travels.

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

The chart illustrates September 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, September typically has an average temperature of 11°C (52°F), with highs reaching up to 19°C (66°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Bethlehem

In Bethlehem in September, the total precipitation amount is 127 mm (5.0 in), occurring over the course of 14 days.

September Precipitation Trends in Bethlehem

The chart displays monthly precipitation patterns in Bethlehem, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Bethlehem, September typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 14 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Bethlehem

In Bethlehem in September humidity is 77%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable if not properly dressed, as the moisture in the air amplifies the cold, leaving travelers feeling cooler than expected.

September Average Humidity in Bethlehem

This chart illustrates the average monthly humidity levels in Bethlehem, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Bethlehem is approximately 77%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Bethlehem

In Bethlehem in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Bethlehem.

Maximum UV Index Levels in Bethlehem for September

The chart shows the monthly maximum UV Index (UVI) for Bethlehem in September, 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 September, the maximum UV index in Bethlehem typically reaches 7, which falls under the high exposure category.

Data source: Bethlehem September 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 September 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 September’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 September’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