September weather forecastGlenorchy, Australia
September
Weather in September
September, the first month of the spring in Glenorchy, is a moderate month, with an average temperature fluctuating between 13°C (55.4°F) and 5.6°C (42.1°F).Temperature
The arrival of September records an average high-temperature of a mild 13°C (55.4°F), closely related to the 11.5°C (52.7°F) observed in August. The average temperature drops to a cold 5.6°C (42.1°F) during the night in the month of September.Humidity
The average relative humidity in September is 76%.Rainfall
In September, in Glenorchy, the rain falls for 14.7 days. Throughout September, 25mm (0.98") of precipitation is accumulated. Throughout the year, there are 163.7 rainfall days, and 356mm (14.02") of precipitation is accumulated.Snowfall
January through July, September through December are months without snowfall in Glenorchy.Sea temperature
With an average sea temperature of 12.6°C (54.7°F), September is the month with the coldest seawater.Note: With the appropriate swimsuit, one can swim in 12.6°C (54.7°F) even if temperatures dip below 10°C (50°F); otherwise, be ready for cold shock and breath issues. A fleeting swim around 13°C (55.4°F) is distressing.
Daylight
The average length of the day in September is 11h and 48min.On the first day of September, sunrise is at 6:36 am and sunset at 5:45 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 6:16 pm AEST.
Sunshine
In September, the average sunshine in Glenorchy, Australia, is 7.2h.UV index
The months with the lowest UV index in Glenorchy are May through September, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun is at its strongest around midday, find shade and limit exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Glenorchy, Australia
- Average high temperature in September: 13°C
The warmest month (with the highest average high temperature) is January (20.1°C).
The month with the lowest average high temperature is July (10.9°C).
- Average low temperature in September: 5.6°C
The month with the highest average low temperature is January (11.1°C).
The coldest month (with the lowest average low temperature) is August (4.8°C).
Average pressure in September
Glenorchy, Australia
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is June (1017.8mbar).
The month with the lowest atmospheric pressure is December (1010.7mbar).
Average wind speed in September
Glenorchy, Australia
- Average wind speed in September: 14.5km/h
The windiest month (with the highest average wind speed) is September (14.5km/h).
The calmest month (with the lowest average wind speed) is March (11.4km/h).
Average humidity in September
Glenorchy, Australia
- Average humidity in September: 76%
The month with the highest relative humidity is June (82%).
The months with the lowest relative humidity are January and December (73%).
Average rainfall in September
Glenorchy, Australia
- Average rainfall in September: 25mm
The wettest months (with the highest rainfall) are August and November (38mm).
The driest months (with the least rainfall) are January and October (23mm).
Average rainfall days in September
Glenorchy, Australia
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is June (11.4 days).
Average snowfall days in September
Glenorchy, Australia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is August (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, September, October, November and December (0 days).
Average sea temperature in September
Glenorchy, Australia
- Average sea temperature in September: 12.6°C
The best month for swimming (with the highest average sea temperature) is February (16.5°C).
The coldest month (with the lowest average sea temperature) is September (12.6°C).
Average daylight in September /
Average sunshine in September
Glenorchy, Australia
- Average daylight in September: 11h and 48min
The month with the longest days is December (Average daylight: 15h and 18min).
The month with the shortest days is June (Average daylight: 9h and 6min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is December (Average sunshine: 9h and 12min).
The month with the least sunshine is June (Average sunshine: 5h and 18min).
Average sunshine days in September
Glenorchy, Australia
- Average sunshine days in September: 10.1 days
The month with the most sunshine days is June (15.3 days).
The month with the least sunshine days is November (9.5 days).
Average UV index in September
Glenorchy, Australia
- Average UV index in September: 3
The month with the highest UV index is 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
Glenorchy, Australia
- Average cloud cover in September: 42
The month with the most cloud cover is November (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 39).
Average visibility in September
Glenorchy, Australia
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).





