Climate averages 1991–2020
Melbourne weather
in December.
A warm, moderately wet month: the 3rd warmest and the joint 9th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Melbourne: daytime highs average 23.3°C and nights cool to about 12.9°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 60 mm of rain on roughly 8 days, which makes December a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 43 min on an average December day.
The nearest other city in this atlas is Geelong (65 km away). In December its highs average 21.9°C, 1.4°C cooler than Melbourne, with 42 mm of rain.
Among the 32 cities listed in Australia, Melbourne ranks 27th of 32 for the warmest December highs and joint 12th of 32 for the driest December (rainfall, lowest first). The mean December high of those 32 cities is 26.0°C; Melbourne is 2.6°C cooler than that mean.
From December to January, average highs rise by 2.2°C to 25.5°C, and monthly rainfall falls from 60 mm to 49 mm.
The annual picture
December 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
Melbourne climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.5°C14.7°C | 14.7°C | 49 | 5.9 | 14.514 h |
| February | 25.4°C14.9°C | 14.9°C | 44 | 5.7 | 13.514 h |
| March | 23.2°C13.5°C | 13.5°C | 35 | 5.5 | 12.412 h |
| April | 19.6°C10.9°C | 10.9°C | 46 | 7.0 | 11.111 h |
| May | 16.1°C9.1°C | 9.1°C | 43 | 8.7 | 10.110 h |
| June | 13.5°C7.2°C | 7.2°C | 49 | 10.2 | 9.610 h |
| July | 12.9°C6.6°C | 6.6°C | 44 | 11.0 | 9.810 h |
| August | 13.9°C6.8°C | 6.8°C | 51 | 11.3 | 10.711 h |
| September | 16.1°C7.9°C | 7.9°C | 60 | 11.7 | 11.812 h |
| October | 18.8°C9.4°C | 9.4°C | 60 | 10.3 | 13.013 h |
| November | 21.2°C11.3°C | 11.3°C | 61 | 9.3 | 14.114 h |
| December, selected | 23.3°C12.9°C | 12.9°C | 60 | 7.7 | 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
December in nearby cities
- Geelong in DecemberAustralia · 65 kmHigh 21.9°C · Low 12.9°C · 42 mm rain
- Ballarat in DecemberAustralia · 102 kmHigh 22.1°C · Low 10.3°C · 52 mm rain
- Bendigo in DecemberAustralia · 132 kmHigh 25.8°C · Low 13.1°C · 43 mm rain
- Launceston in DecemberAustralia · 444 kmHigh 21.0°C · Low 10.3°C · 57 mm rain
- Tuggeranong in DecemberAustralia · 453 kmHigh 24.3°C · Low 12.1°C · 81 mm rain
- Canberra in DecemberAustralia · 466 kmHigh 24.3°C · Low 12.1°C · 55 mm rain
- Hobart in DecemberAustralia · 598 kmHigh 19.8°C · Low 10.9°C · 58 mm rain
- Adelaide Hills in DecemberAustralia · 646 kmHigh 23.9°C · Low 12.6°C · 28 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 Melbourne) is explained once on the Melbourne year overview and on the Sources, method and limits page.