September weather forecast
Newcastle, Australia

Weather in September

September, the first month of the spring in Newcastle, is an agreeable month, with an average temperature fluctuating between 20.1°C (68.2°F) and 13.2°C (55.8°F).

Temperature

In Newcastle, the average high-temperature in September is almost the same as in August - a pleasant 20.1°C (68.2°F). In September, the average low-temperature is 13.2°C (55.8°F).

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 69%.

Rainfall

In Newcastle, during September, the rain falls for 10.7 days and regularly aggregates up to 45mm (1.77") of precipitation. Throughout the year, in Newcastle, there are 160.9 rainfall days, and 620mm (24.41") of precipitation is accumulated.

Sea temperature

In Newcastle, in September, the average water temperature is 19.2°C (66.6°F).
Note: For most, swimming in 19.2°C (66.6°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in September in Newcastle is 11h and 53min.
On the first day of September in Newcastle, sunrise is at 6:10 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 5:54 pm AEST.

Sunshine

The average sunshine in September in Newcastle is 8.8h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the least humid month in Newcastle?

August and September, with an average relative humidity of 69%, are the least humid months.

What is the average humidity in September in Newcastle?

In September, the average relative humidity in Newcastle is 69%.

How much does it rain in Newcastle in September?

In September, in Newcastle, the rain falls for 10.7 days. Throughout September, 45mm (1.77") of precipitation is accumulated.

What is the sea temperature in September in Newcastle?

In Newcastle, in September, the average water temperature is 19.2°C (66.6°F). For swimming, a surface water temperature of 19.2°C (66.6°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Newcastle have in September?

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

What time are sunrise and sunset in September in Newcastle?

On the first day of September in Newcastle, Australia, sunrise is at 6:10 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 5:54 pm AEST.

How long on average sun shines in September in Newcastle?

In Newcastle, Australia, the average sunshine duration in September is 8.8h.

What is the UV index reading in September in Newcastle?

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.

Average temperature in September
Newcastle, Australia

Average temperature in September - Newcastle, Australia
  • Average high temperature in September: 20.1°C

The warmest month (with the highest average high temperature) is January (26.7°C).
The month with the lowest average high temperature is July (16.3°C).

  • Average low temperature in September: 13.2°C

The month with the highest average low temperature is January (20.3°C).
The coldest month (with the lowest average low temperature) is August (10.8°C).

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Average pressure in September
Newcastle, Australia

Average pressure in September - Newcastle, Australia
  • Average pressure in September: 1017.4mbar

The month with the highest atmospheric pressure is June (1020.9mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).

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Average wind speed in September
Newcastle, Australia

Average wind speed in September - Newcastle, Australia
  • Average wind speed in September: 15.8km/h

The windiest month (with the highest average wind speed) is August (16.7km/h).
The calmest month (with the lowest average wind speed) is April (14.1km/h).

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Average humidity in September
Newcastle, Australia

Average humidity in September - Newcastle, Australia
  • Average humidity in September: 69%

The month with the highest relative humidity is February (77%).
The months with the lowest relative humidity are August and September (69%).

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Average rainfall in September
Newcastle, Australia

Average rainfall in September - Newcastle, Australia
  • Average rainfall in September: 45mm

The wettest month (with the highest rainfall) is February (79mm).
The driest month (with the least rainfall) is August (34mm).

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Average rainfall days in September
Newcastle, Australia

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

The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is August (10.2 days).

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Average sea temperature in September
Newcastle, Australia

Average sea temperature in September - Newcastle, Australia
  • Average sea temperature in September: 19.2°C

The best month for swimming (with the highest average sea temperature) is February (24°C).
The coldest month (with the lowest average sea temperature) is August (18.9°C).

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

Average daylight in September / Average sunshine in September - Newcastle, Australia
  • Average daylight in September: 11h and 53min

The month with the longest days is December (Average daylight: 14h and 17min).
The month with the shortest days is June (Average daylight: 10h and 1min).

  • Average sunshine in September: 8h and 48min

The months with the most sunshine are November and December (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).

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Average sunshine days in September
Newcastle, Australia

Average sunshine days in September - Newcastle, Australia
  • Average sunshine days in September: 17.7 days

The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is February (12.4 days).

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Average UV index in September
Newcastle, Australia

Average UV index in September - Newcastle, Australia
  • Average UV index in September: 5

The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June, July and August (UV index 4).

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Average cloud cover in September
Newcastle, Australia

Average cloud cover in September - Newcastle, Australia
  • Average cloud cover in September: 24

The month with the most cloud cover is February (Cloud cover 39).
The months with the least cloud cover are August and September (Cloud cover 24).

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Average visibility in September
Newcastle, Australia

Average visibility in September - Newcastle, Australia
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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