Western Australia weather in September 2025
September
Western Australia weather in September 2025
September
Day
20 °C
Night
10 °C
Sea
18 °C
Precipitation
80 mm
in month
Rainy days
13 days
in month
Daylight
12 hours
average
Sunshine
7 hours
average
Humidity
65 %
Day
20 °C
Night
10 °C
Sea
18 °C
Precipitation
80 mm
in month
Rainy days
13 days
in month
Daylight
12 hours
average
Sunshine
7 hours
average
Humidity
65 %
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Weather overview and FAQs
Weather overview
In September in Western Australia, the average air temperature ranges from 20 °C (67 °F) during the day to 10 °C (50 °F) at night. There are 13 days of rain on average, where the rainfall is 80 mm (3.13 in).
Is September a good month to visit Western Australia?
In September there are not good conditions to visit Western Australia. The temperature of 10 °C (50 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
What is the temperature in Western Australia during the day in September?
In September in Western Australia, the average daily temperatures will be 20 °C (67 °F). Nice temperature for walking around the city or on the beach, but you will probably get cold soon when wearing a swimsuit. When walking around all day, people used to cold conditions, pull out their shorts and get rid of their sweaters. On some days, when spending time in the direct sun, sunscreen can be useful, especially for people with more sensitive skin.
What is the average number of rainy days in Western Australia in September?
There are 13 days, which are rainy in Western Australia in September, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.9 days of the week, or in general - 42 % days.
What is the sea temperature in September in Western Australia?
The temperature of the sea in Western Australia in September is 18 °C (64 °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.
How heavy is the precipitation in Western Australia in September?
In September in Western Australia, there is 80 mm (3.13 in) rainfall, which means on average 3 mm (0.11 in) rainfall per day.
What is the night temperature in September in Western Australia?
The average night temperature in Western Australia in September is 10 °C (50 °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.
Is there a wet season in Western Australia in September?
No, there is no wet season in September in Western Australia - you can expect 13 days of rain during the month.
How many sunny hours can I expect in Western Australia in September?
In September in Western Australia, you can expect around 7 hours of sunshine.
What level of humidity is to expect in Western Australia in September?
Humidity in Western Australia in September is 65 %.
How long is the day (from dawn till dusk) in Western Australia in September?
The length of daylight in Western Australia in September is 12 hours.
Is the weather in Western Australia warmer in September than in August?
Yes, September in Western Australia is warmer than August by 1 °C (34 °F).
Is Western Australia rainier in September than in October?
Yes, in September in Western Australia it rains more than in October.
Is the temperature rising or falling in the course of time in September in Western Australia?
Over the course of September in Western Australia, the temperatures are rising from 19 °C (66 °F) at the beginning of the month to 21 °C (69 °F) at the end of the month.
How windy is it in Western Australia in September?
An average wind scale that can be expected in Western Australia in September is 5.
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