September weather forecastKeysborough, Australia
September
Weather in September
The first month of the spring, September, is still a refreshing month in Keysborough, Australia, with temperature in the range of an average high of 15.8°C (60.4°F) and an average low of 8.5°C (47.3°F).Temperature
The onset of September notes an average high-temperature of a still mild 15.8°C (60.4°F), subtly shifted from August's 13.5°C (56.3°F). Throughout September, an average low-temperature of 8.5°C (47.3°F) is experienced.Humidity
In September, the average relative humidity is 74%.Rainfall
In Keysborough, in September, during 14.6 rainfall days, 43mm (1.69") of precipitation is typically accumulated. Throughout the year, there are 158.8 rainfall days, and 484mm (19.06") of precipitation is accumulated.Daylight
In Keysborough, the average length of the day in September is 11h and 51min.On the first day of September, sunrise is at 6:40 am and sunset at 5:58 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 6:22 pm AEST.
Sunshine
The average sunshine in September is 7.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Keysborough, Australia
- Average high temperature in September: 15.8°C
The warmest month (with the highest average high temperature) is January (25°C).
The month with the lowest average high temperature is July (13°C).
- Average low temperature in September: 8.5°C
The month with the highest average low temperature is February (15.4°C).
The coldest month (with the lowest average low temperature) is August (7.3°C).
Average pressure in September
Keysborough, Australia
- Average pressure in September: 1016.3mbar
The month with the highest atmospheric pressure is June (1021.2mbar).
The month with the lowest atmospheric pressure is January (1012.5mbar).
Average wind speed in September
Keysborough, Australia
- Average wind speed in September: 14.1km/h
The windiest month (with the highest average wind speed) is August (15.1km/h).
The calmest month (with the lowest average wind speed) is April (11.4km/h).
Average humidity in September
Keysborough, Australia
- Average humidity in September: 74%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is January (65%).
Average rainfall in September
Keysborough, Australia
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is August (52mm).
The driest month (with the least rainfall) is March (31mm).
Average rainfall days in September
Keysborough, Australia
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is January (9 days).
Average daylight in September /
Average sunshine in September
Keysborough, Australia
- Average daylight in September: 11h and 48min
The month with the longest days is December (Average daylight: 14h and 42min).
The month with the shortest days is June (Average daylight: 9h and 36min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is December (Average sunshine: 9h and 42min).
The months with the least sunshine are May, July and August (Average sunshine: 6h and 30min).
Average sunshine days in September
Keysborough, Australia
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is January (19 days).
The months with the least sunshine days are July and August (10.8 days).
Average UV index in September
Keysborough, Australia
- Average UV index in September: 4
The months with the highest UV index are January, February, March, October, November and December (UV index 5).
The months with the lowest UV index are June, July and August (UV index 3).
Average cloud cover in September
Keysborough, Australia
- Average cloud cover in September: 45
The months with the most cloud cover are July and August (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in September
Keysborough, Australia
- Average visibility in September: 9km
The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are April, May, June, July, August, September, October, November and December (9km).
