September weather forecastCollie, Australia
September
Weather in September
The first month of the spring, September, is still a comfortable month in Collie, Australia, with an average temperature varying between 10.8°C (51.4°F) and 16.9°C (62.4°F).Temperature
In September, Collie experiences a minor shift in meteorological conditions with average high-temperatures marked at a still comfortable 16.9°C (62.4°F), closely mirroring the climate in August. Collie experiences an average low-temperature of 10.8°C (51.4°F) in the month of September.Humidity
In Collie, Australia, the average relative humidity in September is 75%.Rainfall
In Collie, in September, it is raining for 14.9 days, with typically 48mm (1.89") of accumulated precipitation. Throughout the year, there are 130.6 rainfall days, and 479mm (18.86") of precipitation is accumulated.Daylight
In Collie, the average length of the day in September is 11h and 53min.On the first day of September in Collie, Australia, sunrise is at 6:32 am and sunset at 5:57 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 6:17 pm AWST.
Sunshine
In September, the average sunshine is 7.9h.UV index
The months with the lowest UV index in Collie are May through September, 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 the ordinary person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Collie, Australia
- Average high temperature in September: 16.9°C
The warmest month (with the highest average high temperature) is February (27°C).
The month with the lowest average high temperature is July (16.2°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is February (17.6°C).
The coldest months (with the lowest average low temperature) are August and September (10.8°C).
Average pressure in September
Collie, Australia
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is July (1019.8mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in September
Collie, Australia
- Average wind speed in September: 17.4km/h
The windiest month (with the highest average wind speed) is January (17.6km/h).
The calmest month (with the lowest average wind speed) is April (14.6km/h).
Average humidity in September
Collie, Australia
- Average humidity in September: 75%
The months with the highest relative humidity are July and August (77%).
The month with the lowest relative humidity is January (63%).
Average rainfall in September
Collie, Australia
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is July (90mm).
The driest month (with the least rainfall) is January (11mm).
Average rainfall days in September
Collie, Australia
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (4.2 days).
Average daylight in September /
Average sunshine in September
Collie, 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 54min
The month with the most sunshine is January (Average sunshine: 11h and 24min).
The months with the least sunshine are July and August (Average sunshine: 5h and 36min).
Average sunshine days in September
Collie, Australia
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in September
Collie, Australia
- Average UV index in September: 4
The months with the highest UV index are February and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in September
Collie, Australia
- Average cloud cover in September: 37
The month with the most cloud cover is July (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility in September
Collie, 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).
