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September Weather in Newmarket, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Newmarket, New Zealand is a mild 13°C (56°F), with daily fluctuations ranging from a minimum of 6°C (43°F) to a pleasant maximum of 20°C (68°F). Expect a fair amount of rain, with 111 mm (4.4 in) of precipitation spread over 14 days, bringing the average humidity to a relatively high 80%. Whether you enjoy embracing the cool air or navigating the rainy days, Newmarket offers a unique experience this month!

September Temperature in Newmarket

In September in Newmarket, the average temperature is 13°C (56°F). Maximums can reach 20°C (68°F), while minimums can be as low as 6°C (43°F). This pleasant climate makes it an ideal time for travelers to explore the area comfortably.

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

The chart illustrates September temperature patterns in Newmarket, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Newmarket, 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 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec686967645956545556596367
Data source: Temperature data for Newmarket 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 Newmarket

In Newmarket in September, the precipitation amount is 111 mm (4.4 in) during 14 days, indicating a significant amount of rainfall for that period.

September Precipitation Trends in Newmarket

The chart displays monthly precipitation patterns in Newmarket, 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 Newmarket, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec56788810084107102114111818072
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Newmarket

In Newmarket 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 Newmarket

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

In Newmarket 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 Newmarket.

Maximum UV Index Levels in Newmarket for September

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

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

This table compares monthly weather conditions in Newmarket, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)56 mm (2.2 inches)79%extreme
February Weather21°C (70°F)78 mm (3.1 inches)76%extreme
March Weather20°C (68°F)87 mm (3.4 inches)74%very high
April Weather18°C (64°F)100 mm (3.9 inches)74%high
May Weather15°C (60°F)84 mm (3.3 inches)80%moderate
June Weather13°C (56°F)107 mm (4.2 inches)82%moderate
July Weather12°C (55°F)102 mm (4.0 inches)83%moderate
August Weather13°C (55°F)114 mm (4.5 inches)80%moderate
September Weather13°C (56°F)111 mm (4.4 inches)80%high
October Weather15°C (59°F)81 mm (3.2 inches)80%very high
November Weather17°C (63°F)80 mm (3.2 inches)80%extreme
December Weather19°C (67°F)72 mm (2.8 inches)78%extreme

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