The weather in Australia on monday 15 September 2025
The average max temperature in Australia on 15 September is normally around 24°C. For comparison: the highest daytime temperature in the past 10 years was 32°C in 2018, while the lowest was 18°C in 2021.
There’s a very slim chance of precipitation, as only 1 out of the last 10 years saw 13 mm of it on this day. The wind often comes from the South with a maximum strength of 4 Bft.The UV index can reach 8.
Temperature on 15 September in Australia per year
This chart shows the average temperature on 15 September in Australia, measured in degrees Celsius, over the past years.
Precipitation on 15 September in Australia over the past years
This chart shows the total measured precipitation in millimetres on 15 September in Australia over the past years.
Average Weather in Australia by Month
Click on a month below to see detailed weather info for Australia. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Australia for all months at once