September weather forecastYanchep, Australia
September
Weather in September
The first month of the spring, September, is also an enjoyable month in Yanchep, Australia, with an average temperature fluctuating between 11.2°C (52.2°F) and 18.5°C (65.3°F).Temperature
The beginning of September reveals an average high-temperature of a still enjoyable 18.5°C (65.3°F), showing minimal deviation from the previous month. September nights are marked by an average temperature drop to a cool 11.2°C (52.2°F).Humidity
In Yanchep, the average relative humidity in September is 71%.Rainfall
In September, in Yanchep, Australia, the rain falls for 13.2 days. Throughout September, 34mm (1.34") of precipitation is accumulated. In Yanchep, during the entire year, the rain falls for 115.1 days and collects up to 386mm (15.2") of precipitation.Daylight
In Yanchep, the average length of the day in September is 11h and 54min.On the first day of the month, sunrise is at 6:33 am and sunset at 6:01 pm. On the last day of September, in Yanchep, sunrise is at 5:56 am and sunset at 6:18 pm AWST.
Sunshine
In Yanchep, the average sunshine in September is 8.3h.UV index
In September, the average daily maximum UV index in Yanchep is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 suggests these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Yanchep, Australia
- Average high temperature in September: 18.5°C
The warmest months (with the highest average high temperature) are January and February (28.8°C).
The month with the lowest average high temperature is July (17.2°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is February (19.8°C).
The coldest months (with the lowest average low temperature) are August and September (11.2°C).
Average pressure in September
Yanchep, Australia
- Average pressure in September: 1019.1mbar
The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is January (1011.2mbar).
Average wind speed in September
Yanchep, Australia
- Average wind speed in September: 15.5km/h
The windiest month (with the highest average wind speed) is January (17.3km/h).
The calmest month (with the lowest average wind speed) is April (14.1km/h).
Average humidity in September
Yanchep, Australia
- Average humidity in September: 71%
The months with the highest relative humidity are July and August (73%).
The month with the lowest relative humidity is January (56%).
Average rainfall in September
Yanchep, Australia
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is June (69mm).
The driest months (with the least rainfall) are March and December (11mm).
Average rainfall days in September
Yanchep, Australia
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is February (5.2 days).
Average daylight in September /
Average sunshine in September
Yanchep, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is January (Average sunshine: 11h and 36min).
The month with the least sunshine is July (Average sunshine: 5h and 54min).
Average sunshine days in September
Yanchep, Australia
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is December (23.9 days).
The month with the least sunshine days is July (13.4 days).
Average UV index in September
Yanchep, Australia
- Average UV index in September: 5
The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 4).
Average cloud cover in September
Yanchep, Australia
- Average cloud cover in September: 31
The month with the most cloud cover is July (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in September
Yanchep, 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).
