Coffs Harbour

New South Wales Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in New South Wales, Australia in August.

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Sydney Byron Bay Jindabyne The Entrance

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

What to Expect in New South Wales in August

New South Wales, Australia is a region in Australia. New South Wales, Australia offers a broad spectrum of weather patterns. In August, one might encounter temperatures that range from cold to warm, and precipitation levels ranging from low to high.

Temperatures

The average highest temperatures fluctuate between cold in Thredbo at 9°C (48°F) to warm in Casino at 23°C (73°F). Nighttime temperatures generally drop to 8°C (46°F) in Casino and -1°C (30°F) in Thredbo.

For a closer look at conditions across New South Wales, Australia, refer to the map below.

Precipitation

In August, precipitation varies across different areas. From low rainfall in Bourke with an average of 13 mm (0.5 in) to high rainfall in Thredbo with 101 mm (4 in).

Average sunshine

Plenty of sunshine can be expected in numerous places in August. Sydney typically receives 242 hours of sunlight, making it ideal for those seeking sunny weather.

Explore New South Wales by month

Pick a month to see the average temperature, rainfall and sunshine in New South Wales - and find the best time to visit. (based on Sydney)

January26°C (79°F) February26°C (79°F) March25°C (77°F) April23°C (73°F) May20°C (68°F) June18°C (64°F) This monthJuly18°C (64°F) August18°C (64°F) September20°C (68°F) October22°C (72°F) November23°C (73°F) December24°C (75°F)
Best Time to Visit New South Wales →

Best Places to Visit in New South Wales in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across New South Wales.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in New South Wales

What is the weather like in August for some of the most popular destinations in New South Wales, Australia?

Temperature range in New South Wales (August)

Precipitation variation in New South Wales (August)

Sydney

In August Sydney generally has pleasant temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are very good that month.

« July
August
September »
July
August
September
Max temperature
18°C (64°F)
18°C (64°F)
20°C (68°F)
Min temperature
11°C (52°F)
11°C (52°F)
13°C (55°F)
Monthly sun hours
208 hours
242 hours
234 hours
Monthly rainfall
56 mm (2.2 in)
54 mm (2.1 in)
53 mm (2.1 in)
Monthly rainy days
8 days
10 days
10 days
Weather conditions
very good
very good
excellent
Climate in Sydney →

Byron Bay

In August Byron Bay generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 13°C (55°F) and moderate monthly rainfall. So on average the conditions are excellent that month.

« July
August
September »
July
August
September
Max temperature
20°C (68°F)
21°C (70°F)
23°C (73°F)
Min temperature
13°C (55°F)
13°C (55°F)
15°C (59°F)
Monthly sun hours
210 hours
240 hours
240 hours
Monthly rainfall
72 mm (2.8 in)
64 mm (2.5 in)
51 mm (2 in)
Monthly rainy days
9 days
9 days
8 days
Weather conditions
excellent
excellent
excellent
Climate in Byron Bay →

Jindabyne

In August Jindabyne generally has low temperatures with maximum daytime temperatures around 10°C (50°F), minimum nighttime temperatures around 0°C (32°F) and moderate monthly snow/rainfall. So on average the conditions are less favorable that month.

« July
August
September »
July
August
September
Max temperature
9°C (48°F)
10°C (50°F)
14°C (57°F)
Min temperature
0°C (32°F)
0°C (32°F)
2°C (36°F)
Monthly snow/rainfall
61 mm (2.4 in)
70 mm (2.8 in)
76 mm (3 in)
Monthly rainy days
12 days
13 days
14 days
Weather conditions
less favorable
less favorable
good
Climate in Jindabyne →

The Entrance

In August The Entrance generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are very good that month.

« July
August
September »
July
August
September
Max temperature
18°C (64°F)
19°C (66°F)
21°C (70°F)
Min temperature
11°C (52°F)
11°C (52°F)
13°C (55°F)
Monthly rainfall
64 mm (2.5 in)
58 mm (2.3 in)
60 mm (2.4 in)
Monthly rainy days
8 days
10 days
10 days
Weather conditions
very good
very good
excellent
Climate in The Entrance →

Merimbula

In August Merimbula generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are good that month.

« July
August
September »
July
August
September
Max temperature
16°C (61°F)
16°C (61°F)
18°C (64°F)
Min temperature
8°C (46°F)
8°C (46°F)
10°C (50°F)
Monthly rainfall
53 mm (2.1 in)
45 mm (1.8 in)
56 mm (2.2 in)
Monthly rainy days
10 days
11 days
11 days
Weather conditions
good
good
very good
Climate in Merimbula →

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

In our records: Australia August extremes

Notable August records observed across cities in Australia in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • Based on our data, the coldest August night in Australia dropped to -13°C (9°F) in Thredbo on August 18, 2025.
  • In our records, the coldest August daytime high in Australia was -5°C (23°F) in Thredbo on August 5, 2020.

Popular cities in August

Day & night temperatures, rainfall and average weather in New South Wales in August.

City Weather Day temp Night temp Rainfall
Sydney 18°C (64°F) 11°C (52°F) 54 mm (2.1 in)
Byron Bay 21°C (70°F) 13°C (55°F) 64 mm (2.5 in)
Jindabyne 10°C (50°F) 0°C (32°F) 70 mm (2.8 in)
The Entrance 19°C (66°F) 11°C (52°F) 58 mm (2.3 in)
Merimbula 16°C (61°F) 8°C (46°F) 45 mm (1.8 in)
Coffs Harbour 20°C (68°F) 11°C (52°F) 53 mm (2.1 in)

New South Wales weather in August: frequently asked questions

What is the weather like in New South Wales, Australia in August?

Expect very good weather across New South Wales, Australia in August. The popular destination of Sydney averages 18°C (64°F) by day and 11°C (52°F) at night during this month.

What is the average temperature in New South Wales, Australia in August?

Average temperatures in New South Wales, Australia during August range from a nighttime low near 11°C (52°F) to a daytime high around 18°C (64°F) in Sydney.

Does New South Wales, Australia get a lot of rain in August?

August is on the drier side in New South Wales, Australia. Sydney averages only about 54 mm (2.1 in), with most days staying dry.

Is August a Good Time to Visit New South Wales, Australia?

Given the typically very good weather conditions in Sydney, August may not be the ideal time to visit New South Wales, Australia.

On average, the best time to visit New South Wales, Australia is in January, March, April, May, September, October, November and December with generally excellent 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.

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