December is one of the warmer months of the year in Mildura, with average highs near 32.6°C and lows around 16.1°C (mean 24.4°C). It is about average for rainfall, averaging 24 mm of rainfall and 36% relative humidity across the period.
December is one of the warmer months of the year in Mildura. Across 45 years of records, the warmest December in Mildura was 2019 — when the month averaged 27.3°C — while the coldest was 2010 at 21.1°C. Typical December days reach 32.6°C with nights near 16.1°C. The long-term trend is warming, about 0.2°C per decade.
December is about average for rainfall in Mildura, averaging 24 mm of rainfall. The wettest December on record was 1992 with 105 mm, while the driest was 1984 at 2 mm.
Relative humidity in Mildura during December averages 36%. The most humid December was 2010 at 58%, and the least humid was 1994 at 25%.
December receives about 8 kWh/m²/day of solar energy in Mildura. The sunniest December was 1994 at 8.8 kWh/m²/day, and the cloudiest was 1992 at 6.8.
Average wind speed in Mildura during December is 3.7 m/s. The windiest Decembers were 1985 and 2005 at 4.2 m/s, while the calmest was 2010 at 3.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.0°C | 24.0°C | 24.4°C | 25.0°C | 24.3°C | +0.3°C |
| Avg High | 32.2°C | 32.2°C | 32.7°C | 33.1°C | 32.7°C | +0.5°C |
| Avg Low | 15.8°C | 15.8°C | 16.0°C | 16.8°C | 15.9°C | +0.1°C |
| Avg Rain | 28 mm | 25 mm | 21 mm | 30 mm | 12 mm | -16 mm |
December temperatures in Mildura have risen by about 0.5°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 7.5°C (1993) to a record high of 47.9°C (2019).
Rainfall in December is about average for rainfall, averaging 24 mm, with a wettest year of 105 mm.
One of the best times to visit Mildura
December is one of the best times to visit Mildura. Expect days averaging 32.6°C and nights around 16.1°C (mean 24.4°C) — warmer than Mildura's yearly average — with low rainfall (24 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 33.5°C | 24.7°C | 15.9°C | 43.6°C | 8.7°C | 7 mm | 30% | 3.7 m/s | — |
| 2024 | 34.0°C | 25.3°C | 16.6°C | 45.7°C | 11.2°C | 15 mm | 38% | 3.5 m/s | 8.5 |
| 2023 | 33.2°C | 25.2°C | 17.3°C | 43.7°C | 11.2°C | 16 mm | 41% | 3.7 m/s | 7.2 |
| 2022 | 30.9°C | 22.8°C | 14.8°C | 41.0°C | 8.2°C | 11 mm | 43% | 3.6 m/s | 8.1 |
| 2021 | 33.1°C | 24.6°C | 16.1°C | 40.1°C | 8.8°C | 4 mm | 33% | 3.6 m/s | 8.6 |
| 2020 | 31.3°C | 23.0°C | 14.8°C | 40.2°C | 9.5°C | 20 mm | 36% | 4 m/s | 8.2 |
| 2019 🔥 | 36.2°C | 27.3°C | 18.4°C | 47.9°C | 10.1°C | 3 mm | 27% | 3.7 m/s | 8.4 |
| 2018 | 34.9°C | 26.9°C | 18.8°C | 44.8°C | 10.7°C | 39 mm | 36% | 3.4 m/s | 7.6 |
| 2017 | 32.2°C | 24.2°C | 16.2°C | 42.4°C | 9.0°C | 35 mm | 39% | 3.3 m/s | 7.7 |
| 2016 | 32.8°C | 25.0°C | 17.2°C | 41.6°C | 10.0°C | 9 mm | 38% | 3.4 m/s | 7.7 |
| 2015 | 35.5°C | 27.1°C | 18.7°C | 43.9°C | 9.8°C | 4 mm | 27% | 3.7 m/s | 8.3 |
| 2014 | 33.1°C | 25.0°C | 16.8°C | 40.2°C | 11.6°C | 13 mm | 34% | 3.5 m/s | 8.3 |
| 2013 | 33.3°C | 24.8°C | 16.2°C | 44.1°C | 8.9°C | 45 mm | 35% | 3.5 m/s | 7.7 |
| 2012 | 33.3°C | 24.9°C | 16.6°C | 41.9°C | 10.7°C | 13 mm | 32% | 3.8 m/s | 8.2 |
| 2011 | 31.2°C | 23.3°C | 15.3°C | 39.9°C | 9.4°C | 49 mm | 40% | 3.5 m/s | 8.2 |
| 2010 ❄️ | 28.2°C | 21.1°C | 13.9°C | 42.0°C | 8.5°C | 86 mm | 58% | 3.2 m/s | 7.9 |
| 2009 | 32.3°C | 23.7°C | 15.0°C | 41.5°C | 9.7°C | 16 mm | 38% | 3.5 m/s | 8.5 |
| 2008 | 30.0°C | 22.3°C | 14.6°C | 37.8°C | 9.5°C | 41 mm | 45% | 3.7 m/s | 7.6 |
| 2007 | 33.3°C | 25.0°C | 16.7°C | 43.8°C | 9.5°C | 23 mm | 36% | 3.5 m/s | 8 |
| 2006 | 33.2°C | 24.6°C | 15.9°C | 43.2°C | 8.6°C | 12 mm | 26% | 3.7 m/s | 8.2 |
| 2005 | 33.7°C | 24.8°C | 15.9°C | 46.9°C | 10.9°C | 10 mm | 36% | 4.2 m/s | 8.2 |
| 2004 | 32.1°C | 24.1°C | 16.1°C | 41.8°C | 9.8°C | 22 mm | 37% | 3.7 m/s | 8 |
| 2003 | 34.5°C | 26.1°C | 17.7°C | 42.2°C | 10.9°C | 36 mm | 39% | 3.3 m/s | 7.9 |
| 2002 | 33.9°C | 25.4°C | 16.8°C | 43.9°C | 8.4°C | 34 mm | 30% | 3.9 m/s | 8 |
| 2001 | 30.3°C | 22.4°C | 14.4°C | 39.4°C | 9.8°C | 2 mm | 36% | 3.9 m/s | 7.7 |
| 2000 | 33.9°C | 25.2°C | 16.5°C | 42.3°C | 9.9°C | 16 mm | 32% | 3.4 m/s | 8.4 |
| 1999 | 29.9°C | 22.3°C | 14.7°C | 38.9°C | 9.4°C | 25 mm | 43% | 3.9 m/s | 7.9 |
| 1998 | 33.7°C | 25.2°C | 16.8°C | 43.9°C | 11.0°C | 3 mm | 33% | 3.6 m/s | 8.6 |
| 1997 | 34.0°C | 25.6°C | 17.2°C | 41.2°C | 12.6°C | 8 mm | 32% | 3.5 m/s | 8.4 |
| 1996 | 32.2°C | 23.5°C | 14.8°C | 41.8°C | 9.9°C | 2 mm | 31% | 3.9 m/s | 8 |
| 1995 | 31.0°C | 22.6°C | 14.2°C | 39.3°C | 8.6°C | 15 mm | 34% | 3.8 m/s | 7.9 |
| 1994 | 35.6°C | 26.5°C | 17.3°C | 45.0°C | 10.4°C | 9 mm | 25% | 3.7 m/s | 8.8 |
| 1993 | 30.0°C | 22.3°C | 14.5°C | 39.7°C | 7.5°C | 69 mm | 44% | 4.1 m/s | 7.3 |
| 1992 🌧️ | 29.5°C | 22.8°C | 16.1°C | 36.3°C | 10.9°C | 105 mm | 55% | 3.5 m/s | 6.8 |
| 1991 | 31.5°C | 23.3°C | 15.1°C | 42.0°C | 8.6°C | 3 mm | 35% | 3.9 m/s | 7.9 |
| 1990 | 34.8°C | 26.0°C | 17.2°C | 44.4°C | 10.4°C | 6 mm | 32% | 4 m/s | 8 |
| 1989 | 33.5°C | 25.0°C | 16.4°C | 43.1°C | 10.9°C | 9 mm | 31% | 3.6 m/s | 8.2 |
| 1988 | 33.0°C | 25.1°C | 17.3°C | 39.9°C | 10.4°C | 49 mm | 42% | 3.5 m/s | 7.6 |
| 1987 | 32.5°C | 24.3°C | 16.1°C | 41.9°C | 8.3°C | 42 mm | 35% | 3.9 m/s | 8.2 |
| 1986 | 29.0°C | 21.4°C | 13.8°C | 41.5°C | 8.5°C | 46 mm | 44% | 3.9 m/s | 7.7 |
| 1985 | 30.0°C | 22.0°C | 14.1°C | 40.2°C | 10.6°C | 30 mm | 43% | 4.2 m/s | 7.7 |
| 1984 | 32.4°C | 23.8°C | 15.2°C | 42.4°C | 8.8°C | 2 mm | 31% | 4 m/s | 8.2 |
| 1983 | 32.7°C | 24.7°C | 16.6°C | 43.1°C | 9.6°C | 71 mm | 39% | 3.3 m/s | — |
| 1982 | 33.5°C | 25.3°C | 17.1°C | 40.5°C | 10.1°C | 3 mm | 28% | 3.6 m/s | — |
| 1981 | 32.9°C | 24.1°C | 15.4°C | 43.5°C | 9.5°C | 4 mm | 32% | 4 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 32.6°C with lows near 16.1°C (mean 24.4°C), based on 45 years of NASA POWER data.
December averages 24 mm of rainfall in Mildura, about average for rainfall. The wettest on record was 105 mm in 1992.
The hottest December reached 47.9°C in 2019. The coldest dipped to 7.5°C in 1993.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.5°C. Daytime highs moved from 32.3°C to 32.9°C and overnight lows from 15.7°C to 16.1°C over the same span.
December is one of the warmer months of the year in Mildura and about average for rainfall, so plan for around 32.6°C daytime highs and 16.1°C at night.
Not quite — December is the 10th coolest month in Mildura, averaging 24.4°C.
For December in Mildura, pack light, breathable clothing and sun protection, with typical highs of 32.6°C and lows of 16.1°C.
Relative humidity in December averages 36% — relatively dry.
Average wind speed in December is 3.7 m/s. The windiest December on record averaged 4.2 m/s (1985).
The wettest December on record was 1992 with 105 mm. On average, December sees 24 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Mildura behaves each December, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for December specifically, along with year-by-year records and how the month has changed over the decades.
