September weather forecastBrisbane, Australia
September
Weather in September
Brisbane welcomes the spring season wholeheartedly with a considerable rise in temperature in September. A significant downturn in relative humidity is noted, diminishing the moisture content in the atmosphere. The city promotes a drier climate when compared to past months. Daylight duration observes an increase, resulting in longer, sunny days. The delightful punctuation of spring marks September in Brisbane city, rendering vivid colors to its natural beauty.Temperature
September in Brisbane denotes a minimal variation in the average high-temperature to a still agreeable 22.9°C (73.2°F) from August's 20.8°C (69.4°F). Brisbane records a steady low-temperature average of 15.3°C (59.5°F) during September.Humidity
In Brisbane, the average relative humidity in September is 69%.Rainfall
September is the month with the least rainfall in Brisbane, Australia. Rain falls for 11.5 days and accumulates 26mm (1.02") of precipitation.Sea temperature
In Brisbane, in September, the average water temperature is 22°C (71.6°F).Note: Imagine a swim in 22°C (71.6°F) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 25°C (77°F) and 28°C (82.4°F).
Daylight
The average length of the day in September is 11h and 56min.On the first day of the month, sunrise is at 6:01 am and sunset at 5:34 pm. On the last day of September, sunrise is at 5:27 am and sunset at 5:47 pm AEST.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September in Brisbane is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brisbane, Australia
- Average high temperature in September: 22.9°C
The warmest month (with the highest average high temperature) is January (28.1°C).
The month with the lowest average high temperature is July (19.4°C).
- Average low temperature in September: 15.3°C
The month with the highest average low temperature is January (22.1°C).
The coldest month (with the lowest average low temperature) is July (12.7°C).
Average pressure in September
Brisbane, Australia
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is January (1012.3mbar).
Average wind speed in September
Brisbane, Australia
- Average wind speed in September: 14.1km/h
The windiest month (with the highest average wind speed) is February (16.4km/h).
The calmest months (with the lowest average wind speed) are May and August (13.7km/h).
Average humidity in September
Brisbane, Australia
- Average humidity in September: 69%
The months with the highest relative humidity are February and March (77%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Brisbane, Australia
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is March (89mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Brisbane, Australia
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (9.5 days).
Average sea temperature in September
Brisbane, Australia
- Average sea temperature in September: 22°C
The best month for swimming (with the highest average sea temperature) is February (27°C).
The coldest months (with the lowest average sea temperature) are July and August (21°C).
Average daylight in September /
Average sunshine in September
Brisbane, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is November (Average sunshine: 10h and 36min).
The month with the least sunshine is June (Average sunshine: 6h and 12min).
Average sunshine days in September
Brisbane, Australia
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is March (7.9 days).
Average UV index in September
Brisbane, Australia
- Average UV index in September: 5
The months with the highest UV index are January, February, March, October, November and December (UV index 6).
The month with the lowest UV index is June (UV index 4).
Average cloud cover in September
Brisbane, Australia
- Average cloud cover in September: 22
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Brisbane, 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).
