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September Weather in Acacia Bay, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Acacia Bay, New Zealand hovers around 9°C (48°F). Expect a chilly minimum of 0°C (32°F) and a pleasant maximum of 17°C (63°F). With 132 mm (5.2 in) of precipitation spread over 15 days, make sure to pack your umbrella! Additionally, the average humidity sits at a comfortable 78%, creating a refreshing atmosphere.

September Temperature in Acacia Bay

In September in Acacia Bay, the average temperature is 9°C (48°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop to as low as 0°C (32°F). Make sure to pack layers to stay comfortable while exploring the diverse weather conditions.

September Weather in Acacia Bay: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Acacia Bay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Acacia Bay, September typically has an average temperature of 9°C (48°F), with highs reaching up to 17°C (63°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec636360545047454648525760
Data source: Temperature data for Acacia Bay generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Acacia Bay

In Acacia Bay in September, the precipitation amount is 132 mm (5.2 in), occurring over a span of 15 days.

September Precipitation Trends in Acacia Bay

The chart displays monthly precipitation patterns in Acacia Bay, 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 Acacia Bay, September typically receives around 132 mm (5.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec7097110135127105146136132113106118
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Acacia Bay

In Acacia Bay in September humidity is 78%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that clings to your skin, making outdoor excursions less enjoyable as you navigate the damp air.

September Average Humidity in Acacia Bay

This chart illustrates the average monthly humidity levels in Acacia Bay, 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 Acacia Bay is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec69%69%71%74%83%86%86%83%78%77%74%66%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Acacia Bay

In Acacia Bay 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 Acacia Bay.

Maximum UV Index Levels in Acacia Bay for September

The chart shows the monthly maximum UV Index (UVI) for Acacia Bay 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 Acacia Bay typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141310743357101113
Data source: Acacia Bay 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 Acacia Bay Compares to Other Months

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

This table compares monthly weather conditions in Acacia Bay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather17°C (63°F)70 mm (2.8 inches)69%extreme
February Weather17°C (63°F)97 mm (3.8 inches)69%extreme
March Weather15°C (60°F)110 mm (4.3 inches)71%very high
April Weather12°C (55°F)135 mm (5.3 inches)74%high
May Weather10°C (50°F)126 mm (5.0 inches)83%moderate
June Weather8°C (47°F)105 mm (4.1 inches)85%moderate
July Weather7°C (45°F)146 mm (5.8 inches)86%moderate
August Weather8°C (46°F)136 mm (5.4 inches)83%moderate
September Weather9°C (48°F)132 mm (5.2 inches)78%high
October Weather11°C (52°F)113 mm (4.5 inches)77%very high
November Weather14°C (57°F)106 mm (4.2 inches)74%extreme
December Weather16°C (61°F)118 mm (4.7 inches)66%extreme

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