September weather forecastStewarts River, Australia
September
Weather in September
The first month of the spring, September, is a pleasant month in Stewarts River, Australia, with an average temperature varying between 11.8°C (53.2°F) and 21.4°C (70.5°F).Temperature
As August transitions into September, Stewarts River notices a gentle rise in the average high-temperature, transitioning from a refreshing 18.4°C (65.1°F) to a pleasant 21.4°C (70.5°F). Throughout September, Stewarts River witnesses a consistent average low-temperature of 11.8°C (53.2°F).Humidity
The least humid month is September, with an average relative humidity of 68%.Rainfall
September is the month with the least rainfall. Rain falls for 9.4 days and accumulates 27mm (1.06") of precipitation.Daylight
The average length of the day in September is 11h and 54min.On the first day of the month, sunrise is at 6:05 am and sunset at 5:33 pm. On the last day of September, sunrise is at 5:28 am and sunset at 5:50 pm AEST.
Sunshine
In Stewarts River, the average sunshine in September is 8.7h.UV index
The months with the lowest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 4 during September leads to these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Stewarts River, Australia
- Average high temperature in September: 21.4°C
The warmest month (with the highest average high temperature) is January (28.3°C).
The month with the lowest average high temperature is July (16.8°C).
- Average low temperature in September: 11.8°C
The month with the highest average low temperature is January (19.3°C).
The coldest month (with the lowest average low temperature) is July (8.9°C).
Average pressure in September
Stewarts River, Australia
- Average pressure in September: 1017.5mbar
The months with the highest atmospheric pressure are June and July (1020.7mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in September
Stewarts River, Australia
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is December (11.2km/h).
The calmest month (with the lowest average wind speed) is April (8.9km/h).
Average humidity in September
Stewarts River, Australia
- Average humidity in September: 68%
The months with the highest relative humidity are March and June (80%).
The month with the lowest relative humidity is September (68%).
Average rainfall in September
Stewarts River, Australia
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is March (96mm).
The driest month (with the least rainfall) is September (27mm).
Average rainfall days in September
Stewarts River, Australia
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (8.3 days).
Average daylight in September /
Average sunshine in September
Stewarts River, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is November (Average sunshine: 9h and 30min).
The month with the least sunshine is June (Average sunshine: 5h and 42min).
Average sunshine days in September
Stewarts River, Australia
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is August (21.3 days).
The month with the least sunshine days is February (10.6 days).
Average UV index in September
Stewarts River, Australia
- Average UV index in September: 4
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in September
Stewarts River, Australia
- Average cloud cover in September: 25
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Stewarts River, Australia
- Average visibility in September: 10km
The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, October, November and December (9km).
