September weather forecastSaint Marys, Australia
September
Weather in September
September, the first month of the spring in Saint Marys, is a pleasant month, with an average temperature fluctuating between 21.2°C (70.2°F) and 9.3°C (48.7°F).Temperature
Saint Marys in September experiences a slight uptick in the average high-temperature, adjusting from August's refreshing 17.8°C (64°F) to an agreeable 21.2°C (70.2°F). An average low-temperature of 9.3°C (48.7°F) is noted during the month of September.Humidity
The least humid month is September, with an average relative humidity of 66%.Rainfall
In Saint Marys, Australia, in September, it is raining for 8.5 days, with typically 26mm (1.02") of accumulated precipitation. Throughout the year, there are 137.7 rainfall days, and 501mm (19.72") of precipitation is accumulated.Daylight
In Saint Marys, the average length of the day in September is 11h and 53min.On the first day of September, sunrise is at 6:14 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 5:58 pm AEST.
Sunshine
The average sunshine in September is 8.8h.UV index
April through September, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint Marys, Australia
- Average high temperature in September: 21.2°C
The warmest month (with the highest average high temperature) is January (29.6°C).
The month with the lowest average high temperature is June (16°C).
- Average low temperature in September: 9.3°C
The month with the highest average low temperature is January (17.4°C).
The coldest month (with the lowest average low temperature) is July (6.3°C).
Average pressure in September
Saint Marys, Australia
- Average pressure in September: 1017.4mbar
The month with the highest atmospheric pressure is June (1021.2mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).
Average wind speed in September
Saint Marys, Australia
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is September (8.3km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).
Average humidity in September
Saint Marys, Australia
- Average humidity in September: 66%
The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is September (66%).
Average rainfall in September
Saint Marys, Australia
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is February (101mm).
The driest month (with the least rainfall) is May (22mm).
Average rainfall days in September
Saint Marys, Australia
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (6.7 days).
Average daylight in September /
Average sunshine in September
Saint Marys, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 48min
The months with the most sunshine are November and December (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).
Average sunshine days in September
Saint Marys, Australia
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is August (22.7 days).
The month with the least sunshine days is February (10 days).
Average UV index in September
Saint Marys, 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 April, May, June, July, August and September (UV index 4).
Average cloud cover in September
Saint Marys, Australia
- Average cloud cover in September: 27
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Saint Marys, 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).
