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September Weather in Mount Sidney, United States

Last updated: June 24, 2025

In Mount Sidney, United States, the average temperature in September is a pleasant 20°C (68°F). However, temperatures can vary from a cool 2°C (36°F) to a warm 34°C (93°F). Be prepared for some rain, as 108 mm (4.3 in) of precipitation is expected over 9 days, coupled with an average humidity of 68%.

September Temperature in Mount Sidney

In September in Mount Sidney, the average temperature is 20°C (68°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as 2°C (36°F). This diverse range of temperatures makes Mount Sidney an ideal destination for travelers seeking both warm days and cool evenings.

September Weather in Mount Sidney: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Mount Sidney, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Sidney, September typically has an average temperature of 20°C (68°F), with highs reaching up to 34°C (93°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec343944546370767368584338
Data source: Temperature data for Mount Sidney 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 Mount Sidney

In Mount Sidney in September, the precipitation amount is 108 mm (4.3 in) spread over 9 days.

September Precipitation Trends in Mount Sidney

The chart displays monthly precipitation patterns in Mount Sidney, 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 Mount Sidney, September typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec63927010812595631141081107284
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mount Sidney

In Mount Sidney in September humidity is 68%. With an average temperature of 20°C (68°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls while also prompting travelers to stay hydrated and seek out refreshing breaks from the heat.

September Average Humidity in Mount Sidney

This chart illustrates the average monthly humidity levels in Mount Sidney, 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 Mount Sidney is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mount Sidney

In Mount Sidney in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Mount Sidney.

Maximum UV Index Levels in Mount Sidney for September

The chart shows the monthly maximum UV Index (UVI) for Mount Sidney 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 Mount Sidney typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710111111109753
Data source: Mount Sidney 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 Mount Sidney Compares to Other Months

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

This table compares monthly weather conditions in Mount Sidney, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)63 mm (2.5 inches)86%moderate
February Weather4°C (39°F)92 mm (3.6 inches)86%high
March Weather7°C (45°F)70 mm (2.7 inches)86%high
April Weather12°C (54°F)108 mm (4.3 inches)84%very high
May Weather17°C (63°F)125 mm (4.9 inches)78%extreme
June Weather21°C (71°F)95 mm (3.7 inches)79%extreme
July Weather24°C (76°F)63 mm (2.5 inches)70%extreme
August Weather23°C (73°F)114 mm (4.5 inches)59%very high
September Weather20°C (68°F)108 mm (4.3 inches)68%very high
October Weather14°C (58°F)110 mm (4.3 inches)80%high
November Weather6°C (43°F)72 mm (2.9 inches)86%moderate
December Weather4°C (39°F)84 mm (3.3 inches)85%moderate

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