Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
In September, Unley's weather conditions record an average high-temperature of an enjoyable 16.4°C (61.5°F), demonstrating little divergence from the preceding month. September nights are marked by an average temperature drop to a chilly 9.9°C (49.8°F).Humidity
In September, the average relative humidity is 69%.Rainfall
In Unley, during September, the rain falls for 11.8 days and regularly aggregates up to 25mm (0.98") of precipitation. Throughout the year, there are 126.2 rainfall days, and 326mm (12.83") of precipitation is accumulated.Daylight
In September, the average length of the day is 11h and 52min.On the first day of the month, sunrise is at 6:34 am and sunset at 5:56 pm. On the last day of September, in Unley, Australia, sunrise is at 5:53 am and sunset at 6:17 pm ACST.
Sunshine
The average sunshine in September is 8h.UV index
In September, the average daily maximum UV index in Unley is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Unley have in September?
What is the UV index reading in September?
Average temperature in September
Unley, Australia
- Average high temperature in September: 16.4°C
The warmest month (with the highest average high temperature) is January (26.3°C).
The month with the lowest average high temperature is July (13.9°C).
- Average low temperature in September: 9.9°C
The month with the highest average low temperature is January (17.8°C).
The coldest month (with the lowest average low temperature) is August (9.1°C).
Average pressure in September
Unley, Australia
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is June (1021.8mbar).
The month with the lowest atmospheric pressure is January (1012.4mbar).
Average wind speed in September
Unley, Australia
- Average wind speed in September: 15.7km/h
The windiest month (with the highest average wind speed) is August (16.3km/h).
The calmest month (with the lowest average wind speed) is April (12.9km/h).
Average humidity in September
Unley, Australia
- Average humidity in September: 69%
The months with the highest relative humidity are June and July (74%).
The month with the lowest relative humidity is January (58%).
Average rainfall in September
Unley, Australia
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is August (43mm).
The driest month (with the least rainfall) is March (16mm).
Average rainfall days in September
Unley, Australia
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (6.2 days).
Average daylight in September /
Average sunshine in September
Unley, Australia
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 30min).
The month with the shortest days is June (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is December (Average sunshine: 10h and 6min).
The month with the least sunshine is August (Average sunshine: 7h and 6min).
Average sunshine days in September
Unley, Australia
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is August (12.7 days).
Average UV index in September
Unley, Australia
- Average UV index in September: 4
The months with the highest UV index are February and December (UV index 6).
The month with the lowest UV index is June (UV index 3).
Average cloud cover in September
Unley, Australia
- Average cloud cover in September: 33
The month with the most cloud cover is July (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in September
Unley, Australia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
