nomadseason

September Weather in Milton, New Zealand

Last updated: August 31, 2025

In September, the average temperature in Milton, New Zealand is a cool 8°C (47°F). Temperatures can range from a chilly -4°C (26°F) at night to a pleasant 21°C (70°F) during the day. Expect 73 mm (2.9 in) of precipitation over approximately 15 days, contributing to an average humidity level of 83%.

September Temperature in Milton

In September in Milton, the average temperature is 8°C (47°F). Maximums can reach 21°C (70°F), while minimums can drop as low as -4°C (26°F). Be sure to pack layers to stay comfortable while exploring the varying temperatures!

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

The chart illustrates September temperature patterns in Milton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Milton, September typically has an average temperature of 8°C (47°F), with highs reaching up to 21°C (70°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec585856514641414446505457
Data source: Temperature data for Milton generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Milton

In Milton in September, the precipitation amount is 73 mm (2.9 in) over the course of 15 days.

September Precipitation Trends in Milton

The chart displays monthly precipitation patterns in Milton, 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 Milton, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec971126872595071537391113116
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Milton

In Milton in September humidity is 83%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that clings to your skin, making travel uncomfortable and leaving you yearning for warmth and dryness as you explore.

September Average Humidity in Milton

This chart illustrates the average monthly humidity levels in Milton, 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 Milton is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%84%84%85%85%85%84%83%82%83%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Milton

In Milton in September, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Milton.

Maximum UV Index Levels in Milton for September

The chart shows the monthly maximum UV Index (UVI) for Milton 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 Milton typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1312853223581012
Data source: Milton 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 Milton Compares to Other Months

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

This table compares monthly weather conditions in Milton, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)97 mm (3.8 inches)83%extreme
February Weather14°C (58°F)112 mm (4.4 inches)82%extreme
March Weather13°C (56°F)68 mm (2.7 inches)84%very high
April Weather10°C (51°F)72 mm (2.8 inches)84%moderate
May Weather8°C (46°F)59 mm (2.3 inches)85%moderate
June Weather5°C (42°F)50 mm (2.0 inches)85%low
July Weather5°C (41°F)71 mm (2.8 inches)85%low
August Weather6°C (44°F)53 mm (2.1 inches)84%moderate
September Weather8°C (47°F)73 mm (2.9 inches)83%moderate
October Weather10°C (50°F)91 mm (3.6 inches)82%very high
November Weather12°C (54°F)113 mm (4.4 inches)82%very high
December Weather14°C (57°F)116 mm (4.6 inches)83%extreme

Compare Milton's Climate with Cities Worldwide