Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A subtle rise in the average high-temperature is observed during September, adjusting from a refreshing 17.8°C (64°F) in August to a pleasant 21.2°C (70.2°F). The average temperature in Saint Marys during September nights dips to a chilly 9.3°C (48.7°F).Humidity
September is the least humid month, with an average relative humidity of 66%.Rainfall
In Saint Marys, in September, during 8.5 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, in Saint Marys, there are 137.7 rainfall days, and 501mm (19.72") of precipitation is accumulated.Daylight
The average length of the day in September in Saint Marys is 11h and 53min.On the first day of September in Saint Marys, 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 in Saint Marys 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 reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the usual temperature for Saint Marys in September?
What is the least humid month in Saint Marys?
What is the average humidity in September in Saint Marys?
How much does it rain in Saint Marys in September?
What is the average length of the day in September in Saint Marys?
What time are sunrise and sunset in September in Saint Marys?
How long on average sun shines in September in Saint Marys?
When is the lowest UV index in Saint Marys?
What is the UV index reading in September in Saint Marys?
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 5min
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 5min
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).
Saint Marys, Australia
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