September weather forecastPerthville, Australia
September
Weather in September
The first month of the spring, September, is a moderate month in Perthville, Australia, with an average temperature fluctuating between 15°C (59°F) and 3.8°C (38.8°F).Temperature
Observing a minor shift, the average high-temperature during September adjusts from August's fresh 11.6°C (52.9°F) to a refreshing 15°C (59°F). September brings Perthville a consistent average low-temperature of 3.8°C (38.8°F).Humidity
The average relative humidity in September in Perthville is 79%.Rainfall
In Perthville, during September, the rain falls for 10.3 days and regularly aggregates up to 25mm (0.98") of precipitation. Throughout the year, in Perthville, there are 125 rainfall days, and 386mm (15.2") of precipitation is accumulated.Snowfall
Months with snowfall are May through October. In September, in Perthville, Australia, it is snowing for 0.6 days. Throughout September, 1mm (0.04") of snow is accumulated. Throughout the year, in Perthville, there are 6.8 snowfall days, and 52mm (2.05") of snow is accumulated.Daylight
The average length of the day in September in Perthville, Australia, is 11h and 53min.On the first day of the month, sunrise is at 6:19 am and sunset at 5:44 pm. On the last day of September, in Perthville, Australia, sunrise is at 5:39 am and sunset at 6:03 pm AEST.
Sunshine
The average sunshine in September is 8.1h.UV index
In Perthville, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. To guard against the harmful effects of the Sun, minimize exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Perthville, Australia
- Average high temperature in September: 15°C
The warmest month (with the highest average high temperature) is January (27.8°C).
The month with the lowest average high temperature is July (10.3°C).
- Average low temperature in September: 3.8°C
The month with the highest average low temperature is January (15°C).
The coldest month (with the lowest average low temperature) is August (1.6°C).
Average pressure in September
Perthville, Australia
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is June (1022mbar).
The month with the lowest atmospheric pressure is January (1012.3mbar).
Average wind speed in September
Perthville, Australia
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is August (11.3km/h).
The calmest month (with the lowest average wind speed) is April (8.8km/h).
Average humidity in September
Perthville, Australia
- Average humidity in September: 79%
The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (64%).
Average rainfall in September
Perthville, Australia
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (50mm).
The driest month (with the least rainfall) is May (19mm).
Average rainfall days in September
Perthville, Australia
- Average rainfall days in September: 10.3 days
The months with the highest number of rainy days are March and November (11.9 days).
The month with the least rainy days is May (8.4 days).
Average snowfall in September
Perthville, Australia
- Average snowfall in September: 1mm
The month with the highest snowfall is August (24mm).
The months with the least snowfall are January, February, March, April, November and December (0mm).
Average snowfall days in September
Perthville, Australia
- Average snowfall days in September: 0.6 days
The month with the highest number of snowfall days is August (2.4 days).
The months with the least snowfall days are January, February, March, April, November and December (0 days).
Average daylight in September /
Average sunshine in September
Perthville, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is December (Average sunshine: 10h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 18min).
Average sunshine days in September
Perthville, Australia
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is May (20 days).
The month with the least sunshine days is February (15.3 days).
Average UV index in September
Perthville, Australia
- Average UV index in September: 3
The months with the highest UV index are January and December (UV index 6).
The month with the lowest UV index is June (UV index 2).
Average cloud cover in September
Perthville, Australia
- Average cloud cover in September: 41
The month with the most cloud cover is June (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in September
Perthville, Australia
- Average visibility in September: 8km
The months with the highest visibility are January, February and December (9km).
The months with the lowest visibility are April, May, June, July and August (7km).





