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September Weather in Howick, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Howick, New Zealand is a mild 13°C (56°F), with a minimum of 4°C (40°F) and a maximum reaching up to 20°C (68°F). Expect about 100 mm (3.9 in) of precipitation spread over 14 days, coupled with an average humidity of 80%. Whether you're exploring or relaxing, be prepared for a mix of temperate weather and occasional showers!

September Temperature in Howick

In September in Howick, the average temperature is 13°C (56°F). The maximum can reach 20°C (68°F), and the minimum can be as low as 4°C (40°F). Overall, it's a mild time to visit, so pack layers to enjoy all that Howick has to offer.

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

The chart illustrates September temperature patterns in Howick, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Howick, September typically has an average temperature of 13°C (56°F), with highs reaching up to 20°C (68°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec697067635855535456596367
Data source: Temperature data for Howick 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 Howick

In Howick in September, the total precipitation amount is 100 mm (3.9 in) spread over 14 days.

September Precipitation Trends in Howick

The chart displays monthly precipitation patterns in Howick, 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 Howick, September typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec54738310583101104116100747783
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Howick

In Howick 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 Howick

This chart illustrates the average monthly humidity levels in Howick, 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 Howick 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 Howick

In Howick 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 Howick.

Maximum UV Index Levels in Howick for September

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

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

This table compares monthly weather conditions in Howick, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)54 mm (2.1 inches)79%extreme
February Weather21°C (70°F)73 mm (2.9 inches)76%extreme
March Weather20°C (67°F)82 mm (3.2 inches)74%very high
April Weather17°C (63°F)105 mm (4.1 inches)74%high
May Weather15°C (59°F)83 mm (3.3 inches)80%moderate
June Weather13°C (55°F)101 mm (4.0 inches)82%moderate
July Weather12°C (54°F)104 mm (4.1 inches)83%moderate
August Weather12°C (54°F)116 mm (4.6 inches)80%moderate
September Weather13°C (56°F)100 mm (3.9 inches)80%high
October Weather15°C (59°F)74 mm (2.9 inches)80%very high
November Weather17°C (63°F)77 mm (3.0 inches)80%extreme
December Weather19°C (67°F)83 mm (3.3 inches)78%extreme

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