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September Weather in Mornington, New Zealand

Last updated: August 31, 2025

In Mornington, New Zealand, the average temperature in September hovers around 9°C (49°F), with lows dipping to 2°C (36°F) and highs reaching up to 18°C (64°F). Expect 64 mm (2.5 in) of precipitation over 13 days, contributing to an average humidity level of 83%. Embrace the cozy atmosphere as you explore this beautiful locale!

September Temperature in Mornington

In September in Mornington, the average temperature is 9°C (49°F). Maximum temperatures can reach 18°C (64°F), while minimums can dip as low as 2°C (36°F). Travelers should be prepared for a mix of cool and mild weather during this time.

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

The chart illustrates September temperature patterns in Mornington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mornington, September typically has an average temperature of 9°C (49°F), with highs reaching up to 18°C (64°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec585857545046454748505457
Data source: Temperature data for Mornington 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 Mornington

In Mornington in September, the precipitation amount is 64 mm (2.5 in) spread over 13 days.

September Precipitation Trends in Mornington

The chart displays monthly precipitation patterns in Mornington, 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 Mornington, September typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec9810359786057755264839292
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mornington

In Mornington in September, humidity is 83%. With an average temperature of 9°C (49°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable for traveling and requiring extra layers to stay warm and dry.

September Average Humidity in Mornington

This chart illustrates the average monthly humidity levels in Mornington, 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 Mornington is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%81%81%82%83%84%82%83%80%81%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mornington

In Mornington 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 Mornington.

Maximum UV Index Levels in Mornington for September

The chart shows the monthly maximum UV Index (UVI) for Mornington 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 Mornington typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131185322358912
Data source: Mornington 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 Mornington Compares to Other Months

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

This table compares monthly weather conditions in Mornington, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather14°C (58°F)98 mm (3.9 inches)82%extreme
February Weather14°C (58°F)103 mm (4.0 inches)79%extreme
March Weather14°C (57°F)59 mm (2.3 inches)81%very high
April Weather12°C (54°F)78 mm (3.1 inches)81%moderate
May Weather10°C (50°F)60 mm (2.4 inches)82%moderate
June Weather8°C (46°F)57 mm (2.3 inches)83%low
July Weather7°C (46°F)75 mm (2.9 inches)84%low
August Weather8°C (47°F)52 mm (2.0 inches)82%moderate
September Weather9°C (49°F)64 mm (2.5 inches)83%moderate
October Weather10°C (51°F)83 mm (3.3 inches)80%very high
November Weather12°C (54°F)92 mm (3.6 inches)81%very high
December Weather14°C (57°F)92 mm (3.6 inches)83%extreme

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