September weather forecastKoo Wee Rup, Australia
September
Weather in September
September, the first month of the spring in Koo Wee Rup, is also a moderate month, with an average temperature ranging between min 7.5°C (45.5°F) and max 15.9°C (60.6°F).Temperature
Upon the beginning of September, Koo Wee Rup's high-temperatures register at a still refreshing 15.9°C (60.6°F), closely mirroring the preceding month. Nighttime temperature dips to a mean of 7.5°C (45.5°F) during September.Humidity
In Koo Wee Rup, the average relative humidity in September is 75%.Rainfall
In Koo Wee Rup, during September, the rain falls for 17.7 days and regularly aggregates up to 53mm (2.09") of precipitation. Throughout the year, there are 177.7 rainfall days, and 571mm (22.48") of precipitation is accumulated.Daylight
The average length of the day in September in Koo Wee Rup is 11h and 50min.On the first day of September, sunrise is at 6:39 am and sunset at 5:56 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 6:21 pm AEST.
Sunshine
The average sunshine in September is 7h.UV index
The months with the lowest UV index are May through September, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koo Wee Rup, Australia
- Average high temperature in September: 15.9°C
The warmest month (with the highest average high temperature) is January (25.3°C).
The month with the lowest average high temperature is July (12.7°C).
- Average low temperature in September: 7.5°C
The month with the highest average low temperature is February (14.2°C).
The coldest month (with the lowest average low temperature) is August (6.6°C).
Average pressure in September
Koo Wee Rup, Australia
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is June (1021.1mbar).
The month with the lowest atmospheric pressure is January (1012.5mbar).
Average wind speed in September
Koo Wee Rup, Australia
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is August (12.9km/h).
The calmest month (with the lowest average wind speed) is April (9.8km/h).
Average humidity in September
Koo Wee Rup, Australia
- Average humidity in September: 75%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is January (66%).
Average rainfall in September
Koo Wee Rup, Australia
- Average rainfall in September: 53mm
The wettest month (with the highest rainfall) is August (60mm).
The driest months (with the least rainfall) are February and March (40mm).
Average rainfall days in September
Koo Wee Rup, Australia
- Average rainfall days in September: 17.7 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is February (10 days).
Average daylight in September /
Average sunshine in September
Koo Wee Rup, 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 0min
The month with the most sunshine is December (Average sunshine: 9h and 36min).
The months with the least sunshine are May, July and August (Average sunshine: 6h and 18min).
Average sunshine days in September
Koo Wee Rup, Australia
- Average sunshine days in September: 10.7 days
The month with the most sunshine days is January (16.4 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in September
Koo Wee Rup, Australia
- Average UV index in September: 3
The months with the highest UV index are January, February, March, November and December (UV index 5).
The months with the lowest UV index are May, June, July, August and September (UV index 3).
Average cloud cover in September
Koo Wee Rup, Australia
- Average cloud cover in September: 47
The month with the most cloud cover is July (Cloud cover 52).
The month with the least cloud cover is January (Cloud cover 32).
Average visibility in September
Koo Wee Rup, 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).





