September Weather in Opotiki, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Opotiki, New Zealand is a mild 12°C (53°F), with temperatures ranging from a chilly 2°C (36°F) to a comfortable 20°C (68°F). This month sees about 151 mm (6.0 in) of precipitation, typically spread across 14 days, contributing to an average humidity of 78%. Whether you're enjoying brisk walks or cozying up indoors, be prepared for the varied weather!

September Temperature in Opotiki

In September in Opotiki, the average temperature is 12°C (53°F). The maximum can reach 20°C (68°F), while the minimum can drop to as low as 2°C (36°F). This mild climate makes it an ideal time for travelers to explore the outdoors and enjoy local attractions.

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

The chart illustrates September temperature patterns in Opotiki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Opotiki, September typically has an average temperature of 12°C (53°F), with highs reaching up to 20°C (68°F) and lows dropping to around 2°C (36°F).

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

September Precipitation in Opotiki

In Opotiki in September, the precipitation amount is 151 mm (6.0 in) spread over a duration of 14 days.

September Precipitation Trends in Opotiki

The chart displays monthly precipitation patterns in Opotiki, 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 Opotiki, September typically receives around 151 mm (6.0 inches) of precipitation spread over approximately 14 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Opotiki

In Opotiki in September, humidity is 78%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that lingers in the air, making it essential to wear layers while exploring the sights, as the cool moisture can seep into your bones and leave you feeling a bit uncomfortable if not properly dressed for the weather.

September Average Humidity in Opotiki

This chart illustrates the average monthly humidity levels in Opotiki, 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 Opotiki is approximately 78%, 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 Opotiki

In Opotiki 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 Opotiki.

Maximum UV Index Levels in Opotiki for September

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

Data source: Opotiki 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 Opotiki Compares to Other Months

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

This table compares monthly weather conditions in Opotiki, 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 (67°F)	70 mm (2.8 inches)	69%	extreme
February Weather	19°C (67°F)	109 mm (4.3 inches)	69%	extreme
March Weather	18°C (64°F)	131 mm (5.1 inches)	71%	very high
April Weather	15°C (60°F)	151 mm (5.9 inches)	74%	high
May Weather	13°C (56°F)	130 mm (5.1 inches)	83%	moderate
June Weather	11°C (53°F)	157 mm (6.2 inches)	85%	moderate
July Weather	10°C (51°F)	161 mm (6.3 inches)	86%	moderate
August Weather	11°C (51°F)	189 mm (7.4 inches)	83%	moderate
September Weather	12°C (53°F)	151 mm (6.0 inches)	78%	high
October Weather	13°C (56°F)	141 mm (5.5 inches)	77%	very high
November Weather	16°C (61°F)	126 mm (5.0 inches)	74%	extreme
December Weather	18°C (65°F)	150 mm (5.9 inches)	66%	extreme