September weather forecast
Katoomba, Australia

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Weather in September

The first month of the spring, September, is an enjoyable month in Katoomba, Australia, with an average temperature ranging between min 6.2°C (43.2°F) and max 18.5°C (65.3°F).

Temperature

Katoomba's transition into September is marked by a minor temperature shift, moving from a mild 15.2°C (59.4°F) in August to a comfortable 18.5°C (65.3°F). Katoomba observes a distinct decrease from peak daytime temperatures, with an average low-temperature of 6.2°C (43.2°F) throughout the month of September.

Humidity

The average relative humidity in September in Katoomba is 70%.

Rainfall

In Katoomba, during September, the rain falls for 10.7 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, in Katoomba, there are 157.9 rainfall days, and 569mm (22.4") of precipitation is accumulated.

Daylight

The average length of the day in September is 11h and 53min.
On the first day of the month, sunrise is at 6:16 am and sunset at 5:40 pm. On the last day of September, in Katoomba, Australia, sunrise is at 5:36 am and sunset at 6:00 pm AEST.

Sunshine

The average sunshine in September is 8.8h.

UV index

In Katoomba, Australia, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 4 in September translates into the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

What are the temperatures in Katoomba in September?

September temperatures in Katoomba, Australia, vary between a high-temperature of 18.5°C (65.3°F) and a low-temperature of 6.2°C (43.2°F). In January, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 32°C (89.6°F).

What is the average humidity in September in Katoomba?

The average relative humidity in September in Katoomba, Australia, is 70%.

How much does it rain in Katoomba in September?

In Katoomba, in September, it is raining for 10.7 days, with typically 32mm (1.26") of accumulated precipitation.

What is the average length of the day in September in Katoomba?

The average day length in September is 11h and 53min.

When are sunrise and sunset in September in Katoomba?

In September, on the first day of the month, sunrise is at 6:16 am and sunset at 5:40 pm. On the last day of the month, in Katoomba, Australia, sunrise is at 5:36 am and sunset at 6:00 pm AEST.

How long on average sun shines in September in Katoomba?

The average sunshine duration in September is 8.8h.

How high is the UV index in September in Katoomba?

In Katoomba, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Katoomba, Australia

Average temperature in September - Katoomba, Australia
  • Average high temperature in September: 18.5°C

The warmest month (with the highest average high temperature) is January (28.6°C).
The months with the lowest average high temperature are June and July (13.7°C).

  • Average low temperature in September: 6.2°C

The month with the highest average low temperature is January (15.4°C).
The coldest month (with the lowest average low temperature) is July (3.3°C).

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Average pressure in September
Katoomba, Australia

Average pressure in September - Katoomba, Australia
  • Average pressure in September: 1017.6mbar

The month with the highest atmospheric pressure is June (1021.6mbar).
The month with the lowest atmospheric pressure is January (1012.7mbar).

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Average wind speed in September
Katoomba, Australia

Average wind speed in September - Katoomba, Australia
  • Average wind speed in September: 8.4km/h

The windiest month (with the highest average wind speed) is August (8.6km/h).
The calmest months (with the lowest average wind speed) are March and April (6.3km/h).

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Average humidity in September
Katoomba, Australia

Average humidity in September - Katoomba, Australia
  • Average humidity in September: 70%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is December (68%).

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Average rainfall in September
Katoomba, Australia

Average rainfall in September - Katoomba, Australia
  • Average rainfall in September: 32mm

The wettest month (with the highest rainfall) is February (109mm).
The driest month (with the least rainfall) is May (22mm).

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Average rainfall days in September
Katoomba, Australia

Average rainfall days in September - Katoomba, Australia
  • Average rainfall days in September: 10.7 days

The month with the highest number of rainy days is March (17.7 days).
The months with the least rainy days are July and August (8.9 days).

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Average daylight in September /
Average sunshine in September
Katoomba, Australia

Average daylight in September / Average sunshine in September - Katoomba, Australia
  • Average daylight in September: 11h and 5min

The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are November and December (Average sunshine: 10h and 6min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).

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Average sunshine days in September
Katoomba, Australia

Average sunshine days in September - Katoomba, Australia
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is May (19 days).
The month with the least sunshine days is February (8.9 days).

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Average UV index in September
Katoomba, Australia

Average UV index in September - Katoomba, Australia
  • Average UV index in September: 4

The months with the highest UV index are January and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 3).

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Average cloud cover in September
Katoomba, Australia

Average cloud cover in September - Katoomba, Australia
  • Average cloud cover in September: 30

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Katoomba, Australia

Average visibility in September - Katoomba, Australia
  • Average visibility in September: 8km

The months with the highest visibility are January, February, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are March and April (7km).

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Katoomba, Australia

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