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Weather in September in New South Wales

Planning a trip to New South Wales this September? Here's what you need to know about the weather:

What is the weather like in New South Wales in September?

New South Wales is a region in Australia. The weather in New South Wales in September can be quite varied, with temperatures that range from mild to warm and precipitation levels ranging from low to high.

Temperatures

The average highest temperatures fluctuate between mild in Thredbo at 13°C to warm in Casino at 26°C. Nighttime temperatures generally drop to 11°C in Casino and 1°C in Thredbo.

To explore the conditions in New South Wales in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From low rainfall in Bourke with an average of 22 mm to high rainfall in Tumut with 106 mm. Going by our weather data, this month in Sydney usually has the least rain, making it the driest month of the year.

Average sunshine

The days are mostly sunny, with an average total of around 234 hours of sunshine in Sydney. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

For a more detailed look at New South Wales's conditions throughout the year, check out our New South Wales climate page.

Where to go in New South Wales in September

Find more information for the most popular destinations in the New South Wales on the map below. Click on a destination dot for more details.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Select a Month of Interest

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Australia, check out our New South Wales's climate page.

Popular destinations

What is the weather like in September for the 5 most popular destinations in New South Wales?

Sydney

In September Sydney generally has pleasant temperatures with maximum daytime temperatures around 20°C, minimum nighttime temperatures around 13°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Sydney
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
18°C 
11°C 
242 hours 
54 mm 
10 days 
20°C 
13°C 
234 hours 
53 mm 
10 days 
October   >> October
>>  
22°C 
15°C 
248 hours 
63 mm 
11 days 
Climate in Sydney

Byron Bay

In September Byron Bay generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 15°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Byron Bay
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
21°C 
13°C 
240 hours 
64 mm 
9 days 
23°C 
15°C 
240 hours 
51 mm 
8 days 
October   >> October
>>  
24°C 
18°C 
260 hours 
87 mm 
11 days 
Climate in Byron Bay

Jindabyne

In September Jindabyne generally has moderate temperatures with maximum daytime temperatures around 14°C, minimum nighttime temperatures around 2°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Jindabyne
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
10°C 
-0°C 
70 mm 
13 days 
poor 
14°C 
2°C 
76 mm 
14 days 
October   >> October
>>  
17°C 
4°C 
82 mm 
15 days 
Climate in Jindabyne

The Entrance

In September The Entrance generally has pleasant temperatures with maximum daytime temperatures around 21°C, minimum nighttime temperatures around 13°C and moderate monthly rainfall. So on average the conditions are perfect that month.

The Entrance
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
19°C 
11°C 
58 mm 
10 days 
21°C 
13°C 
60 mm 
10 days 
October   >> October
>>  
22°C 
15°C 
71 mm 
11 days 
Climate in The Entrance

Merimbula

In September Merimbula generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 10°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Merimbula
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
16°C 
8°C 
45 mm 
11 days 
18°C 
10°C 
56 mm 
11 days 
October   >> October
>>  
20°C 
11°C 
71 mm 
14 days 
Climate in Merimbula

Is your destination not in the list? Have a look at other destinations in New South Wales, in Australia.

Is September the best time to visit New South Wales?

We believe that September is one of the best times to visit New South Wales with overall perfect weather in Sydney. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, January, March, April, May, September, October, November and December provide perfect weather in Sydney.

Interested in more climate information?

We have much more information about the climate in New South Wales.

Weather and climate has detailed information for every country in the world. Are you going to Australia? Get detailed historical weather averages for many cities in Australia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.