September weather forecast and climate
Caloundra, Australia

The first month of the spring, September, is still a pleasant month in Caloundra, Australia, with temperature in the range of an average high of 22.5°C (72.5°F) and an average low of 16°C (60.8°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still pleasant 22.5°C (72.5°F). In September, the average low-temperature is 16°C (60.8°F).

Humidity

In Caloundra, the average relative humidity in September is 71%.

Rainfall

September is the month with the least rainfall in Caloundra, Australia. Rain falls for 9.5 days and accumulates 16mm (0.63") of precipitation.

Sea temperature

In Caloundra, the average water temperature is 21.9°C (71.4°F).
Note: For swimming, a surface water temperature of 21.9°C (71.4°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).

Daylight

In Caloundra, the average length of the day is 11.9h.

Sunshine

In September, the average sunshine is 8.8h.

UV index

Months with the lowest UV index in Caloundra are April through September, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in September in Caloundra?

In September, in Caloundra, Australia, the average high-temperature is 22.5°C (72.5°F), and the average low-temperature is 16°C (60.8°F).

What is the average humidity in September in Caloundra?

In Caloundra, Australia, the average relative humidity in September is 71%.

How much does it rain in Caloundra in September?

In September, the rain falls for 9.5 days. Throughout September, 16mm (0.63") of precipitation is accumulated.

What is the driest month in Caloundra?

The month with the least rainfall in Caloundra is September when the rain falls for 9.5 days and typically collects 16mm (0.63") of precipitation.

What is the sea water temperature in September in Caloundra?

In Caloundra, in September, the average water temperature is 21.9°C (71.4°F). Swimming in 21.9°C (71.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

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

The average length of the day in September in Caloundra is 11.9h.

How many hours of sunshine does Caloundra have in September?

The average sunshine in September in Caloundra is 8.8h.

What is the month with the lowest UV index in Caloundra?

April through September, with an average maximum UV index of 5, are months with the lowest UV index in Caloundra.

How high is the UV index in September in Caloundra?

In September, the average daily maximum UV index in Caloundra, Australia, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.
Average temperature in September - Caloundra, Australia
  • Average high temperature in September: 22.5°C

The warmest month (with the highest average high temperature) is January (27°C).
The month with the lowest average high temperature is July (19.2°C).

  • Average low temperature in September: 16°C

The month with the highest average low temperature is February (22.6°C).
The coldest month (with the lowest average low temperature) is July (13.8°C).

Average pressure in September - Caloundra, Australia
  • Average pressure in September: 1018.4mbar

The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is January (1012mbar).

Average wind speed in September - Caloundra, Australia
  • Average wind speed in September: 14.9km/h

The windiest month (with the highest average wind speed) is February (17.8km/h).
The calmest month (with the lowest average wind speed) is August (14.6km/h).

Average humidity in September - Caloundra, Australia
  • Average humidity in September: 71%

Months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is August (69%).

Average rainfall in September - Caloundra, Australia
  • Average rainfall in September: 16mm

The wettest month (with the highest rainfall) is February (81mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in September - Caloundra, Australia
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is September (9.5 days).

Average sea temperature in September - Caloundra, Australia
  • Average sea temperature in September: 21.9°C

The best month for swimming (with the highest average sea temperature) is February (27.3°C).
The coldest month (with the lowest average sea temperature) is August (21.2°C).

Average daylight in September / Average sunshine in September - Caloundra, Australia
  • Average daylight in September: 11.9h

The month with the longest days is December (Average daylight: 13.8h).
The month with the shortest days is June (Average daylight: 10.5h).

  • Average sunshine in September: 8.8h

The month with the most sunshine is November (Average sunshine: 10.8h).
The month with the least sunshine is June (Average sunshine: 6.1h).

Average sunshine days in September - Caloundra, Australia
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is August (18.3 days).
Months with the least sunshine days are February and March (6.8 days).

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

Months with the highest UV index are January, February, March, October, November and December (UV index 6).
Months with the lowest UV index are April, May, June, July, August and September (UV index 5).

Average cloud cover in September - Caloundra, Australia
  • Average cloud cover in September: 22

Months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 19).

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

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