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September Weather in Lewisham, Australia

Last updated: August 22, 2025

In September, the average temperature in Lewisham, Australia is a mild 10°C (50°F), with daytime highs reaching up to 24°C (75°F) and nighttime lows dipping to a cool 0°C (32°F). Expect about 44 mm (1.7 in) of precipitation spread over 10 days, contributing to an average humidity of 82%, creating a refreshing atmosphere perfect for exploration.

September Temperature in Lewisham

In September in Lewisham, the average temperature is 10°C (50°F). Maximums can reach 24°C (75°F) and minimums can be as low as 0°C (32°F). Dress in layers to enjoy the varying temperatures while exploring all that Lewisham has to offer.

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

The chart illustrates September temperature patterns in Lewisham, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lewisham, September typically has an average temperature of 10°C (50°F), with highs reaching up to 24°C (75°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec646160555047454650535760
Data source: Temperature data for Lewisham 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 Lewisham

In Lewisham in September, the total precipitation amount is 44 mm (1.7 in) over the course of 10 days.

September Precipitation Trends in Lewisham

The chart displays monthly precipitation patterns in Lewisham, 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 Lewisham, September typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec424259374343325244795862
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lewisham

In Lewisham in September, humidity is 82%. With an average temperature of 10°C (50°F), this humidity feels like a dense, heavy blanket wrapping around you, making every step feel sluggish and the air thick, which can make traveling quite uncomfortable.

September Average Humidity in Lewisham

This chart illustrates the average monthly humidity levels in Lewisham, 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 Lewisham is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%68%73%81%86%85%86%84%82%77%77%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lewisham

In Lewisham in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Lewisham, you can refer to this Hourly UV Index in Lewisham.

Maximum UV Index Levels in Lewisham for September

The chart shows the monthly maximum UV Index (UVI) for Lewisham 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 Lewisham typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1211963224681013
Data source: Lewisham 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 Lewisham Compares to Other Months

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

This table compares monthly weather conditions in Lewisham, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (64°F)42 mm (1.7 inches)68%extreme
February Weather16°C (61°F)42 mm (1.7 inches)68%extreme
March Weather16°C (60°F)59 mm (2.3 inches)73%very high
April Weather13°C (55°F)37 mm (1.5 inches)81%high
May Weather10°C (50°F)43 mm (1.7 inches)86%moderate
June Weather8°C (47°F)43 mm (1.7 inches)85%low
July Weather7°C (46°F)31 mm (1.2 inches)86%low
August Weather8°C (47°F)52 mm (2.1 inches)84%moderate
September Weather10°C (50°F)44 mm (1.7 inches)82%high
October Weather12°C (54°F)79 mm (3.1 inches)77%very high
November Weather14°C (58°F)58 mm (2.3 inches)77%very high
December Weather16°C (60°F)62 mm (2.5 inches)70%extreme

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