September weather forecastSouth Johnstone, Australia

September

Weather in September

September, the first month of the spring in South Johnstone, is also a moderately hot month, with an average temperature ranging between min 14.9°C (58.8°F) and max 27.3°C (81.1°F).

Temperature

South Johnstone greets September with an average high-temperature of a still moderately hot 27.3°C (81.1°F), marking a slight deviation from the preceding month. South Johnstone registers a significant reduction from the day's heat, with an average temperature drop to a refreshing 14.9°C (58.8°F) in September.

Heat index

The heat index for September is appraised at a hot 30°C (86°F). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
Heat index evaluations are typically in the context of light winds and shaded environments. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', comes about by integrating the temperature readings with the humidity levels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.

Humidity

In South Johnstone, the average relative humidity in September is 72%.

Rainfall

The months with the least rainfall in South Johnstone are July through September Rain falls for 5.7 days and accumulates 7mm (0.28") of rain.

Daylight

In South Johnstone, the average length of the day in September is 12h and 0min.
On the first day of September in South Johnstone, Australia, sunrise is at 6:22 am and sunset at 6:09 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 6:13 pm AEST.

Sunshine

In September, the average sunshine is 9h.

UV index

The months with the highest UV index in South Johnstone are January through March, September through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 6 suggests these recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during September is 27.3°C (81.1°F) and the low-temperature is 14.9°C (58.8°F). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is appraised at 30°C (86°F).

In South Johnstone, the average relative humidity in September is 72%.

The months with the least rainfall in South Johnstone, Australia, are July through September Rain falls for 5.7 days and accumulates 7mm (0.28") of rain.

In South Johnstone, in September, it is raining for 5.7 days, with typically 7mm (0.28") of accumulated precipitation.

In September, the average day length in South Johnstone, Australia, is 12h and 0min.

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 6:09 pm. On the last day of the month, in South Johnstone, sunrise is at 5:58 am and sunset at 6:13 pm AEST.

In South Johnstone, Australia, the average sunshine duration in September is 9h.

The months with the highest UV index in South Johnstone are January through March, September through December, with an average maximum UV index of 6.

In September, the average daily maximum UV index in South Johnstone, Australia, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

24.8°C

27.3°C

29°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.6km/h

9.1km/h

10.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

20.3

19.4

17.6

Average UV index

Average cloud cover

Average visibility

Average temperature in September
South Johnstone, Australia

Average high temperature in September: 27.3°C

The warmest month (with the highest average high temperature) is December (30.3°C).
The month with the lowest average high temperature is July (22.9°C).

Average low temperature in September: 14.9°C

The months with the highest average low temperature are January and February (20.3°C).
The coldest month (with the lowest average low temperature) is August (13.1°C).

Average pressure in September
South Johnstone, Australia

Average pressure in September: 1015.8mbar

The month with the highest atmospheric pressure is July (1016.9mbar).
The month with the lowest atmospheric pressure is January (1007.7mbar).

Average wind speed in September
South Johnstone, Australia

Average wind speed in September: 8.5km/h

The windiest month (with the highest average wind speed) is October (9.1km/h).
The calmest month (with the lowest average wind speed) is February (6.8km/h).

Average humidity in September
South Johnstone, Australia

Average humidity in September: 72%

The month with the highest relative humidity is March (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in September
South Johnstone, Australia

Average rainfall in September: 7mm

The wettest month (with the highest rainfall) is January (200mm).
The driest months (with the least rainfall) are July, August and September (7mm).

Average rainfall days in September
South Johnstone, Australia

Average rainfall days in September: 5.7 days

The month with the highest number of rainy days is January (25.2 days).
The month with the least rainy days is September (5.7 days).

Average daylight in September /
Average sunshine in September
South Johnstone, Australia

Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).

Average sunshine in September: 9h and 0min

The month with the most sunshine is October (Average sunshine: 10h and 36min).
The month with the least sunshine is May (Average sunshine: 5h and 36min).

Average sunshine days in September
South Johnstone, Australia

Average sunshine days in September: 19.4 days

The month with the most sunshine days is August (20.3 days).
The month with the least sunshine days is January (3.7 days).

Average UV index in September
South Johnstone, Australia

Average UV index in September: 6

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