September weather forecastMannum, Australia
September
Weather in September
September, the first month of the spring in Mannum, is a refreshing month, with an average temperature fluctuating between 7.5°C (45.5°F) and 17.9°C (64.2°F).Temperature
Mannum transitions into September recording an average high-temperature of an enjoyable 17.9°C (64.2°F), closely aligning with the preceding month's temperature. In September, the temperature drops to an average of 7.5°C (45.5°F) at night.Humidity
The average relative humidity in September is 71%.Rainfall
In September, in Mannum, the rain falls for 10.5 days. Throughout September, 19mm (0.75") of precipitation is accumulated. In Mannum, during the entire year, the rain falls for 112.2 days and collects up to 219mm (8.62") of precipitation.Daylight
The average length of the day in September in Mannum is 11h and 52min.On the first day of September in Mannum, sunrise is at 6:31 am and sunset at 5:54 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 6:15 pm ACST.
Sunshine
The average sunshine in September is 7.8h.UV index
In Mannum, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. 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
Mannum, Australia
- Average high temperature in September: 17.9°C
The warmest month (with the highest average high temperature) is January (29.6°C).
The month with the lowest average high temperature is July (14.6°C).
- Average low temperature in September: 7.5°C
The month with the highest average low temperature is January (16.8°C).
The coldest month (with the lowest average low temperature) is August (6.7°C).
Average pressure in September
Mannum, Australia
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is June (1021.8mbar).
The month with the lowest atmospheric pressure is January (1012.2mbar).
Average wind speed in September
Mannum, Australia
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is August (13km/h).
The calmest month (with the lowest average wind speed) is April (10.1km/h).
Average humidity in September
Mannum, Australia
- Average humidity in September: 71%
The month with the highest relative humidity is July (76%).
The month with the lowest relative humidity is January (51%).
Average rainfall in September
Mannum, Australia
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is May (26mm).
The driest month (with the least rainfall) is March (12mm).
Average rainfall days in September
Mannum, Australia
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (13.9 days).
The months with the least rainy days are January and February (5.8 days).
Average daylight in September /
Average sunshine in September
Mannum, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 30min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is December (Average sunshine: 10h and 30min).
The month with the least sunshine is August (Average sunshine: 7h and 6min).
Average sunshine days in September
Mannum, Australia
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is July (14.2 days).
Average UV index in September
Mannum, Australia
- Average UV index in September: 4
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 3).
Average cloud cover in September
Mannum, Australia
- Average cloud cover in September: 35
The months with the most cloud cover are May, July and August (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 20).
Average visibility in September
Mannum, Australia
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
