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September Weather in Waiuku, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Waiuku, New Zealand hovers around 13°C (56°F), with a comfortable range that dips to a minimum of 3°C (38°F) and peaks at a pleasant 21°C (70°F). This month sees an average precipitation of 109 mm (4.3 in) over 16 days, resulting in an average humidity of 80%, adding to the often refreshing atmosphere.

September Temperature in Waiuku

In September in Waiuku, the average temperature is 13°C (56°F). Maximum temperatures can reach 21°C (70°F), while minimums can dip as low as 3°C (38°F). Travelers should be prepared for mild days and cooler nights, making it a perfect time for layered clothing and outdoor exploration.

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

The chart illustrates September temperature patterns in Waiuku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Waiuku, September typically has an average temperature of 13°C (56°F), with highs reaching up to 21°C (70°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec686967625854535455586267
Data source: Temperature data for Waiuku 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 Waiuku

In Waiuku in September, the precipitation amount is 109 mm (4.3 in) spread over 16 days.

September Precipitation Trends in Waiuku

The chart displays monthly precipitation patterns in Waiuku, 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 Waiuku, September typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec6272879999102120130109929189
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Waiuku

In Waiuku in September humidity is 80%. With average temperature 13°C (56°F) this humidity feels like a damp chill that seeps into your bones, making outdoor exploration more challenging and necessitating layered clothing for comfort.

September Average Humidity in Waiuku

This chart illustrates the average monthly humidity levels in Waiuku, 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 Waiuku is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%76%74%75%80%82%83%81%80%80%80%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Waiuku

In Waiuku 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 Waiuku.

Maximum UV Index Levels in Waiuku for September

The chart shows the monthly maximum UV Index (UVI) for Waiuku 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 Waiuku typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141410743357101113
Data source: Waiuku 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 Waiuku Compares to Other Months

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

This table compares monthly weather conditions in Waiuku, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)62 mm (2.4 inches)79%extreme
February Weather21°C (70°F)72 mm (2.8 inches)76%extreme
March Weather19°C (67°F)87 mm (3.4 inches)74%very high
April Weather17°C (62°F)99 mm (3.9 inches)74%high
May Weather14°C (58°F)99 mm (3.9 inches)80%moderate
June Weather12°C (55°F)102 mm (4.0 inches)82%moderate
July Weather12°C (53°F)120 mm (4.7 inches)83%moderate
August Weather12°C (54°F)130 mm (5.1 inches)80%moderate
September Weather13°C (56°F)109 mm (4.3 inches)80%high
October Weather15°C (59°F)92 mm (3.6 inches)80%very high
November Weather17°C (63°F)91 mm (3.6 inches)80%extreme
December Weather19°C (67°F)89 mm (3.5 inches)78%extreme

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