New South Wales - Australia weather in September 2025
September
New South Wales - Australia weather in September 2025
September
Day
22 °C
Night
11 °C
Sea
19 °C
Precipitation
66 mm
in month
Rainy days
7 days
in month
Daylight
12 hours
average
Sunshine
8 hours
average
Humidity
56 %
Day
22 °C
Night
11 °C
Sea
19 °C
Precipitation
66 mm
in month
Rainy days
7 days
in month
Daylight
12 hours
average
Sunshine
8 hours
average
Humidity
56 %
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Weather overview and FAQs
Weather overview
In New South Wales in September, the average air temperature ranges from 22 °C (71 °F) during the day to 11 °C (52 °F) at night. There are 7 days of rain on average, where the rainfall is 66 mm (2.61 in).
Is September a good month to visit New South Wales?
There are good conditions for visiting in New South Wales in September. You can expect just 7 days of rain during the month, taking an umbrella is not necessary. There are some people, who may feel a slight chill at 22 °C (71 °F), but others will feel perfectly fine. A sea temperature of 19 °C (66 °F) can seem colder to some, but others will call it refreshing. The temperature of 11 °C (52 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
What is the average number of rainy days in September in New South Wales?
In September in New South Wales, we can expect 7 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 1.7 days of the week, or in general - 25 % days.
What temperature can I expect during the day in September in New South Wales?
In September in New South Wales, the average daily temperatures will be 22 °C (71 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.
What is the sea temperature in September in New South Wales?
The temperature of the sea in New South Wales in September is 19 °C (66 °F). At this sea temperature, swimming probably won't be the best experience. You probably won't like to stay in water for a long time. On the other hand, there are a minority of people who seek these conditions.
What is the night temperature in September in New South Wales?
The average night temperature in New South Wales in September is 11 °C (52 °F). Nights can be cooler, morning running can be refreshing but choose appropriate clothing, evening outdoor sitting can be pleasant but you can also be cold.
How long is the day (from dawn till dusk) in New South Wales in September?
The length of daylight in New South Wales in September is 12 hours.
Is September part of the dry season in New South Wales?
Yes, there is a dry season in New South Wales in September with just 7 days during the month being rainy.
Is there a wet season in September in New South Wales?
No, there is no wet season in September in New South Wales - you can expect 7 days of rain during the month.
How many sunny hours can I expect in September in New South Wales?
In New South Wales in September, you can expect around 8 hours of sunshine.
Is the weather in New South Wales warmer in September than in August?
Yes, September in New South Wales is warmer than August by 2 °C (36 °F).
Is New South Wales rainier in September than in August?
No, in New South Wales in September it does not rain more than in August.
How windy is New South Wales in September?
An average wind scale that can be expected in New South Wales in September is 4.
What level of humidity is to expect in September in New South Wales?
In New South Wales in September, expect humidity around 56 %.
Is the sea in New South Wales warmer in September than in October?
No, the sea temperature in New South Wales in September is not higher than in October.
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