September weather forecastUndalya, Australia
September
Weather in September
September, the first month of the spring in Undalya, is a refreshing month, with temperature in the range of an average high of 18°C (64.4°F) and an average low of 6.7°C (44.1°F).Temperature
With the onset of September, Undalya's average high-temperature experiences a slight rise, moving from August's refreshing 14.8°C (58.6°F) to a comfortable 18°C (64.4°F). Throughout September, an average low-temperature of 6.7°C (44.1°F) is experienced in Undalya.Humidity
In September, the average relative humidity is 70%.Rainfall
In Undalya, in September, during 10.3 rainfall days, 16mm (0.63") of precipitation is typically accumulated. Throughout the year, there are 95.1 rainfall days, and 190mm (7.48") of precipitation is accumulated.Daylight
In September, the average length of the day is 11h and 53min.On the first day of the month, sunrise is at 6:33 am and sunset at 5:57 pm. On the last day of September, sunrise is at 5:53 am and sunset at 6:17 pm ACST.
Sunshine
In September, the average sunshine is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Undalya, Australia
- Average high temperature in September: 18°C
The warmest month (with the highest average high temperature) is January (32°C).
The month with the lowest average high temperature is July (14.2°C).
- Average low temperature in September: 6.7°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is August (5.9°C).
Average pressure in September
Undalya, Australia
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is June (1022.4mbar).
The month with the lowest atmospheric pressure is January (1011.7mbar).
Average wind speed in September
Undalya, Australia
- Average wind speed in September: 13.1km/h
The windiest month (with the highest average wind speed) is August (13.8km/h).
The calmest month (with the lowest average wind speed) is April (11.2km/h).
Average humidity in September
Undalya, Australia
- Average humidity in September: 70%
The month with the highest relative humidity is July (75%).
The month with the lowest relative humidity is January (40%).
Average rainfall in September
Undalya, Australia
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is August (28mm).
The driest month (with the least rainfall) is March (8mm).
Average rainfall days in September
Undalya, Australia
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is August (11.3 days).
The month with the least rainy days is February (4.6 days).
Average daylight in September /
Average sunshine in September
Undalya, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is December (Average sunshine: 10h and 12min).
The month with the least sunshine is August (Average sunshine: 7h and 18min).
Average sunshine days in September
Undalya, Australia
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is August (16.8 days).
Average UV index in September
Undalya, Australia
- Average UV index in September: 4
The month with the highest UV index is December (UV index 7).
The month with the lowest UV index is June (UV index 3).
Average cloud cover in September
Undalya, Australia
- Average cloud cover in September: 31
The months with the most cloud cover are June, July and August (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility in September
Undalya, Australia
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).





