September Weather in Kelso, Australia

Last updated: August 22, 2025

In September, the average temperature in Kelso, Australia hovers around 9°C (49°F), with a minimum of -5°C (24°F) and a maximum reaching up to 27°C (80°F). Expect about 45 mm (1.8 in) of precipitation over approximately 7 days, contributing to an average humidity of 69%. Stay prepared for a mix of chilly and warm moments during your visit!

September Temperature in Kelso

In September in Kelso, the average temperature is 9°C (49°F). The maximum can reach 27°C (80°F), and the minimum can be as low as -5°C (24°F). Expect a wide temperature range, so pack layers for your travels!

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

The chart illustrates September temperature patterns in Kelso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kelso, September typically has an average temperature of 9°C (49°F), with highs reaching up to 27°C (80°F) and lows dropping to around -5°C (24°F).

Data source: Temperature data for Kelso generated using information from the Copernicus Climate Change Service.

September Precipitation in Kelso

In Kelso in September, the precipitation amount is 45 mm (1.8 in) spread over a duration of 7 days.

September Precipitation Trends in Kelso

The chart displays monthly precipitation patterns in Kelso, 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 Kelso, September typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 7 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Kelso

In Kelso in September, humidity is 69%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that settles into your bones, making it less than ideal for traveling and prompting you to seek warmer attire to stay comfortable.

September Average Humidity in Kelso

This chart illustrates the average monthly humidity levels in Kelso, 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 Kelso is approximately 69%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kelso

In Kelso in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Kelso.

Maximum UV Index Levels in Kelso for September

The chart shows the monthly maximum UV Index (UVI) for Kelso 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 Kelso typically reaches 8, which falls under the very high exposure category.

Data source: Kelso 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 Kelso Compares to Other Months

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

This table compares monthly weather conditions in Kelso, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	21°C (70°F)	51 mm (2.0 inches)	55%	extreme
February Weather	19°C (67°F)	68 mm (2.7 inches)	60%	extreme
March Weather	17°C (63°F)	93 mm (3.7 inches)	68%	extreme
April Weather	13°C (56°F)	26 mm (1.0 inches)	74%	very high
May Weather	9°C (48°F)	34 mm (1.4 inches)	78%	high
June Weather	6°C (43°F)	37 mm (1.5 inches)	78%	moderate
July Weather	5°C (42°F)	45 mm (1.8 inches)	79%	moderate
August Weather	6°C (42°F)	62 mm (2.4 inches)	74%	high
September Weather	9°C (49°F)	45 mm (1.8 inches)	69%	very high
October Weather	13°C (56°F)	58 mm (2.3 inches)	57%	extreme
November Weather	15°C (60°F)	88 mm (3.5 inches)	53%	extreme
December Weather	19°C (66°F)	79 mm (3.1 inches)	62%	extreme