Margaret River

Western Australia Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Western Australia, Australia in September.

Considering a trip to Western Australia, Australia this September and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Western Australia in September

Western Australia, Australia is a region in Australia. In September, Western Australia experiences a range of weather conditions, with temperatures that range from mild to very hot and precipitation levels ranging from almost none to high.

Temperatures

During the day temperatures vary from mild in Lavers Hill at 15°C (59°F) to very hot in Kununurra at 38°C (100°F). At night it cools down to 22°C (72°F) in Kununurra and 8°C (46°F) in Lavers Hill.

To explore the conditions in Western Australia, Australia in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From almost no rainfall in Derby with an average of 0.2 mm (0.01 in) to high rainfall in Lavers Hill with 105 mm (4.1 in).

Average sunshine

Most destinations offer generous amounts of sunshine this September. For example, Perth gets approximately 230 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Western Australia by month

Pick a month to see the average temperature, rainfall and sunshine in Western Australia — and find the best time to visit. (based on Perth)

Best Places to Visit in Western Australia in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Western Australia.

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 Western Australia

What is the weather like in September for some of the most popular destinations in Western Australia, Australia?

Temperature range in Western Australia (September)

Precipitation variation in Western Australia (September)

Perth

In September Perth generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
19°C (66°F)
20°C (68°F)
23°C (73°F)
Min temperature
9°C (48°F)
10°C (50°F)
12°C (54°F)
Monthly sun hours
222 hours
230 hours
298 hours
Monthly rainfall
89 mm (3.5 in)
63 mm (2.5 in)
32 mm (1.3 in)
Monthly rainy days
13 days
10 days
9 days
Weather conditions

Fremantle

In September Fremantle generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 12°C (54°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
19°C (66°F)
20°C (68°F)
23°C (73°F)
Min temperature
11°C (52°F)
12°C (54°F)
13°C (55°F)
Monthly sun hours
222 hours
230 hours
298 hours
Monthly rainfall
98 mm (3.9 in)
65 mm (2.6 in)
32 mm (1.3 in)
Monthly rainy days
13 days
10 days
8 days
Weather conditions

Margaret River

In September Margaret River generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 12°C (54°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
17°C (63°F)
18°C (64°F)
19°C (66°F)
Min temperature
12°C (54°F)
12°C (54°F)
12°C (54°F)
Monthly rainfall
120 mm (4.7 in)
85 mm (3.3 in)
46 mm (1.8 in)
Monthly rainy days
14 days
11 days
10 days
Weather conditions

Albany

In September Albany generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
17°C (63°F)
18°C (64°F)
19°C (66°F)
Min temperature
9°C (48°F)
9°C (48°F)
10°C (50°F)
Monthly sun hours
140 hours
160 hours
189 hours
Monthly rainfall
69 mm (2.7 in)
62 mm (2.4 in)
42 mm (1.7 in)
Monthly rainy days
16 days
13 days
11 days
Weather conditions

Broome

In September Broome generally has very high temperatures with maximum daytime temperatures around 32°C (90°F), minimum nighttime temperatures around 22°C (72°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
30°C (86°F)
32°C (90°F)
33°C (91°F)
Min temperature
19°C (66°F)
22°C (72°F)
24°C (75°F)
Monthly sun hours
321 hours
311 hours
339 hours
Monthly rainfall
2.7 mm (0.1 in)
0.4 mm (0.02 in)
3.2 mm (0.1 in)
Monthly rainy days
a single day
0 days
a single day
Weather conditions

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

Popular cities in September

Day & night temperatures, rainfall and average weather in Western Australia in September.

City Weather Day temp Night temp Rainfall
Perth 20°C (68°F) 10°C (50°F) 63 mm (2.5 in)
Fremantle 20°C (68°F) 12°C (54°F) 65 mm (2.6 in)
Margaret River 18°C (64°F) 12°C (54°F) 85 mm (3.3 in)
Albany 18°C (64°F) 9°C (48°F) 62 mm (2.4 in)
Broome 32°C (90°F) 22°C (72°F) 0.4 mm (0.02 in)
Denmark 17°C (63°F) 10°C (50°F) 68 mm (2.7 in)

Western Australia weather in September: frequently asked questions

What is the weather like in Western Australia, Australia in September?

September in Western Australia, Australia brings perfect weather. In Perth, daytime temperatures are typically around 20°C (68°F) and nighttime lows hover near 10°C (50°F).

What is the average temperature in Western Australia, Australia in September?

In Perth, the average daytime high in September is 20°C (68°F), while nighttime temperatures drop to around 10°C (50°F).

Does Western Australia, Australia get a lot of rain in September?

September is on the drier side in Western Australia, Australia. Perth averages only about 63 mm (2.5 in), with most days staying dry.

Is September a Good Time to Visit Western Australia, Australia?

We consider September to be one of the best times to travel to Western Australia, Australia. Typically, the climate in Perth is perfect. However, the weather conditions may vary depending on your destination.

Generally speaking, April, May, September, October and November provide perfect weather in Perth. The weather in July, on the other hand, tends to be tolerable.

Interested in more climate information?

We have much more information about the climate in Western Australia.

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.

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