September weather forecastCarrum Downs, Australia
September
Weather in September
The first month of the spring, September, is still a mild month in Carrum Downs, Australia, with an average temperature varying between 15.4°C (59.7°F) and 9.4°C (48.9°F).Temperature
Carrum Downs experiences an average high-temperature of a still refreshing 15.4°C (59.7°F) in September, marking an insignificant shift from 13.4°C (56.1°F) in August. The average low-temperature of 9.4°C (48.9°F) is witnessed in Carrum Downs during September.Humidity
In Carrum Downs, the average relative humidity in September is 74%.Rainfall
In Carrum Downs, during September, the rain falls for 17.3 days and regularly aggregates up to 52mm (2.05") of precipitation. In Carrum Downs, Australia, during the entire year, the rain falls for 177.5 days and collects up to 562mm (22.13") of precipitation.Daylight
In Carrum Downs, Australia, the average length of the day in September is 11h and 51min.On the first day of the month, sunrise is at 6:40 am and sunset at 5:57 pm. On the last day of September, in Carrum Downs, sunrise is at 5:55 am and sunset at 6:22 pm AEST.
Sunshine
In Carrum Downs, Australia, the average sunshine in September is 7.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Carrum Downs, Australia
- Average high temperature in September: 15.4°C
The warmest months (with the highest average high temperature) are January and February (23.4°C).
The month with the lowest average high temperature is July (13°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is February (16.2°C).
The coldest months (with the lowest average low temperature) are July and August (8.6°C).
Average pressure in September
Carrum Downs, Australia
- Average pressure in September: 1016.1mbar
The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.6mbar).
Average wind speed in September
Carrum Downs, Australia
- Average wind speed in September: 17.1km/h
The windiest months (with the highest average wind speed) are July and August (18.6km/h).
The calmest months (with the lowest average wind speed) are January, March and December (14km/h).
Average humidity in September
Carrum Downs, Australia
- Average humidity in September: 74%
The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is January (68%).
Average rainfall in September
Carrum Downs, Australia
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is May (59mm).
The driest month (with the least rainfall) is March (34mm).
Average rainfall days in September
Carrum Downs, Australia
- Average rainfall days in September: 17.3 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is January (10.1 days).
Average daylight in September /
Average sunshine in September
Carrum Downs, Australia
- Average daylight in September: 11h and 48min
The month with the longest days is December (Average daylight: 14h and 48min).
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 month with the least sunshine is May (Average sunshine: 6h and 24min).
Average sunshine days in September
Carrum Downs, Australia
- Average sunshine days in September: 9.9 days
The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is August (9.4 days).
Average UV index in September
Carrum Downs, Australia
- Average UV index in September: 4
The month with the highest UV index is December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 3).
Average cloud cover in September
Carrum Downs, Australia
- Average cloud cover in September: 44
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in September
Carrum Downs, 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).








