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
Blacktown's September weather indicates a minor increase in high-temperatures, edging from August's comfortable 18.2°C (64.8°F) to an agreeable 21.5°C (70.7°F). Blacktown cools down to an average low-temperature of 10°C (50°F) throughout the month of September.Humidity
September is the least humid month in Blacktown, Australia, with an average relative humidity of 65%.Rainfall
In September, in Blacktown, the rain falls for 8.9 days. Throughout September, 27mm (1.06") of precipitation is accumulated. Throughout the year, there are 130.1 rainfall days, and 476mm (18.74") of precipitation is accumulated.Daylight
The average length of the day in September is 11h and 53min.On the first day of the month, sunrise is at 6:14 am and sunset at 5:38 pm. On the last day of September, in Blacktown, sunrise is at 5:34 am and sunset at 5:58 pm AEST.
Sunshine
The average sunshine in September in Blacktown is 8.8h.UV index
April through September, with an average maximum UV index of 4, are months with the lowest UV index in Blacktown. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Blacktown in September?
What is the least humid month in Blacktown?
What is the average humidity in September in Blacktown?
How many days does it rain in September in Blacktown?
What is the average length of the day in September in Blacktown?
What time are sunrise and sunset in September in Blacktown?
How many hours of sunshine does Blacktown have in September?
What is the month with the lowest UV index in Blacktown?
What is the UV index reading in September in Blacktown?
Average temperature in September
Blacktown, Australia
- Average high temperature in September: 21.5°C
The warmest month (with the highest average high temperature) is January (29.6°C).
The months with the lowest average high temperature are June and July (16.6°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is January (18.3°C).
The coldest month (with the lowest average low temperature) is July (7.3°C).
Average pressure in September
Blacktown, Australia
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is June (1021.1mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).
Average wind speed in September
Blacktown, Australia
- Average wind speed in September: 9.1km/h
The windiest month (with the highest average wind speed) is September (9.1km/h).
The calmest month (with the lowest average wind speed) is April (7.8km/h).
Average humidity in September
Blacktown, Australia
- Average humidity in September: 65%
The month with the highest relative humidity is June (77%).
The month with the lowest relative humidity is September (65%).
Average rainfall in September
Blacktown, Australia
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is February (87mm).
The driest month (with the least rainfall) is May (23mm).
Average rainfall days in September
Blacktown, Australia
- Average rainfall days in September: 8.9 days
The month with the highest number of rainy days is February (13.9 days).
The month with the least rainy days is May (7.3 days).
Average daylight in September /
Average sunshine in September
Blacktown, Australia
- Average daylight in September: 11h and 5min
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 5min
The month with the most sunshine is November (Average sunshine: 9h and 42min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).
Average sunshine days in September
Blacktown, Australia
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is May (21.8 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in September
Blacktown, Australia
- Average UV index in September: 4
The months with the highest UV index are January, February, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).
Average cloud cover in September
Blacktown, Australia
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Blacktown, Australia
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
