Climate averages 1991–2020
Ballarat weather
in September.
A cool, moderately wet month: the 9th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a cool month in Ballarat: daytime highs average 13.4°C and nights cool to about 5.4°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 69 mm of rain on roughly 12 days, which makes September a moderately wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 49 min on an average September day.
The nearest other city in this atlas is Geelong (79 km away). In September its highs average 15.7°C, 2.3°C warmer than Ballarat, with 49 mm of rain.
Among the 32 cities listed in Australia, Ballarat ranks 32nd of 32 for the warmest September highs and 30th of 32 for the driest September (rainfall, lowest first). The mean September high of those 32 cities is 20.0°C; Ballarat is 6.6°C cooler than that mean.
From September to October, average highs rise by 3.1°C to 16.4°C, and monthly rainfall falls from 69 mm to 62 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Ballarat climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 24.7°C12.3°C | 12.3°C | 45 | 6.0 | 14.414 h |
| February | 24.3°C12.6°C | 12.6°C | 40 | 5.0 | 13.514 h |
| March | 21.6°C11.2°C | 11.2°C | 29 | 5.2 | 12.412 h |
| April | 17.5°C8.7°C | 8.7°C | 38 | 6.5 | 11.111 h |
| May | 13.6°C6.9°C | 6.9°C | 45 | 9.0 | 10.110 h |
| June | 10.8°C5.1°C | 5.1°C | 51 | 9.7 | 9.610 h |
| July | 10.1°C4.3°C | 4.3°C | 49 | 11.0 | 9.810 h |
| August | 11.1°C4.3°C | 4.3°C | 66 | 12.4 | 10.711 h |
| September, selected | 13.4°C5.4°C | 5.4°C | 69 | 12.2 | 11.812 h |
| October | 16.4°C6.9°C | 6.9°C | 62 | 10.2 | 13.013 h |
| November | 19.4°C8.8°C | 8.8°C | 61 | 8.9 | 14.114 h |
| December | 22.1°C10.3°C | 10.3°C | 52 | 7.0 | 14.715 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
- Geelong in SeptemberAustralia · 79 kmHigh 15.7°C · Low 8.2°C · 49 mm rain
- Bendigo in SeptemberAustralia · 98 kmHigh 15.5°C · Low 6.6°C · 52 mm rain
- Melbourne in SeptemberAustralia · 102 kmHigh 16.1°C · Low 7.9°C · 60 mm rain
- Launceston in SeptemberAustralia · 515 kmHigh 14.0°C · Low 4.8°C · 76 mm rain
- Tuggeranong in SeptemberAustralia · 524 kmHigh 14.9°C · Low 4.0°C · 67 mm rain
- Canberra in SeptemberAustralia · 536 kmHigh 14.9°C · Low 4.0°C · 51 mm rain
- Adelaide Hills in SeptemberAustralia · 547 kmHigh 15.1°C · Low 7.2°C · 55 mm rain
- Adelaide in SeptemberAustralia · 555 kmHigh 17.0°C · Low 9.7°C · 53 mm rain
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 limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Ballarat) is explained once on the Ballarat year overview and on the Sources, method and limits page.