September weather forecastQuindalup, Australia
September
Weather in September
The first month of the spring, September, is still a comfortable month in Quindalup, Australia, with temperature in the range of an average low of 12°C (53.6°F) and an average high of 16.6°C (61.9°F).Temperature
The commencement of September brings an average high-temperature of a still comfortable 16.6°C (61.9°F), marking an inconsequential divergence from August. Quindalup documents an average low-temperature of 12°C (53.6°F) for the nights of September.Humidity
The average relative humidity in September is 73%.Rainfall
In Quindalup, in September, it is raining for 17 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, there are 152.6 rainfall days, and 506mm (19.92") of precipitation is accumulated.Sea temperature
In Quindalup, the average seawater temperature in September is 18°C (64.4°F).Note: For most people, swimming in water at 18°C (64.4°F) is not a pleasurable experience. Breathing control gets harder as the water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
In September, the average length of the day in Quindalup is 11h and 53min.On the first day of the month, sunrise is at 6:36 am and sunset at 6:01 pm. On the last day of September, in Quindalup, sunrise is at 5:57 am and sunset at 6:21 pm AWST.
Sunshine
In September, the average sunshine is 7h.UV index
The months with the lowest UV index are June through October, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Exercise prevention - Precautions against solar damage are endorsed. Avoiding the Sun during its peak radiation time around midday is a healthy practice. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Quindalup, Australia
- Average high temperature in September: 16.6°C
The warmest month (with the highest average high temperature) is February (24.3°C).
The month with the lowest average high temperature is July (16.1°C).
- Average low temperature in September: 12°C
The month with the highest average low temperature is February (17.4°C).
The coldest month (with the lowest average low temperature) is September (12°C).
Average pressure in September
Quindalup, Australia
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is May (1019.5mbar).
The month with the lowest atmospheric pressure is January (1013.6mbar).
Average wind speed in September
Quindalup, Australia
- Average wind speed in September: 20.5km/h
The windiest month (with the highest average wind speed) is July (21km/h).
The calmest month (with the lowest average wind speed) is April (16.8km/h).
Average humidity in September
Quindalup, Australia
- Average humidity in September: 73%
The months with the highest relative humidity are July, August and October (74%).
The months with the lowest relative humidity are January, February and December (71%).
Average rainfall in September
Quindalup, Australia
- Average rainfall in September: 44mm
The wettest months (with the highest rainfall) are June and July (88mm).
The driest months (with the least rainfall) are January and December (13mm).
Average rainfall days in September
Quindalup, Australia
- Average rainfall days in September: 17 days
The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is February (4.8 days).
Average sea temperature in September
Quindalup, Australia
- Average sea temperature in September: 18°C
The best month for swimming (with the highest average sea temperature) is March (22.5°C).
The coldest month (with the lowest average sea temperature) is October (17.9°C).
Average daylight in September /
Average sunshine in September
Quindalup, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is January (Average sunshine: 10h and 54min).
The month with the least sunshine is July (Average sunshine: 5h and 0min).
Average sunshine days in September
Quindalup, Australia
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is January (22.5 days).
The months with the least sunshine days are July and August (6.8 days).
Average UV index in September
Quindalup, Australia
- Average UV index in September: 4
The month with the highest UV index is February (UV index 6).
The months with the lowest UV index are June, July, August, September and October (UV index 4).
Average cloud cover in September
Quindalup, Australia
- Average cloud cover in September: 45
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 22).
Average visibility in September
Quindalup, 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).





