Climate averages 1991–2020

Toowoomba weather
in September.

A mild, fairly dry month: the 8th warmest and the 4th driest of the year. Meets the pleasant-weather rule

Long-term climate patterns, not a forecast for a particular trip.

Average high 21.9°C Daytime mean, September
Average low 9.3°C Night-time mean, September
Rainfall 29 mm 4 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Toowoomba · average highYear overview

September is a mild month in Toowoomba: daytime highs average 21.9°C and nights cool to about 9.3°C. By daytime temperature it is the 8th warmest of the 12 months.

Expect about 29 mm of rain on roughly 4 days, which makes September a fairly dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 54 min on an average September day.

The nearest other city in this atlas is Brisbane (106 km away). In September its highs average 24.2°C, 2.3°C warmer than Toowoomba, with 35 mm of rain.

Among the 32 cities listed in Australia, Toowoomba ranks 12th of 32 for the warmest September highs and 7th of 32 for the driest September (rainfall, lowest first). The mean September high of those 32 cities is 20.0°C; Toowoomba is 1.9°C warmer than that mean.

From September to October, average highs rise by 2.3°C to 24.3°C, and monthly rainfall rises from 29 mm to 66 mm.

The annual picture

September in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 05101520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Toowoomba climate table

1991–2020
Monthly climate averages for Toowoomba, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.0°C17.5°C17.5°C9210.413.714 h
February 26.9°C17.3°C17.3°C938.813.113 h
March 25.5°C15.9°C15.9°C607.112.312 h
April 22.9°C12.8°C12.8°C223.911.511 h
May 19.5°C9.5°C9.5°C373.910.811 h
June 16.7°C6.9°C6.9°C324.510.410 h
July 16.5°C5.7°C5.7°C223.610.611 h
August 18.3°C6.3°C6.3°C283.511.111 h
September, selected 21.9°C9.3°C9.3°C294.311.912 h
October 24.3°C12.0°C12.0°C667.312.713 h
November 26.2°C14.4°C14.4°C748.213.513 h
December 27.3°C16.2°C16.2°C10310.013.814 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

September in nearby cities

Distance from Toowoomba

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Toowoomba) is explained once on the Toowoomba year overview and on the Sources, method and limits page.