December is one of the warmer months of the year in Maryborough, with average highs near 30.9°C and lows around 20.3°C (mean 25.6°C). It is a relatively wet time of year, averaging 124 mm of rainfall and 69% relative humidity across the period.
December is one of the warmer months of the year in Maryborough. Across 45 years of records, the warmest December in Maryborough was 2019 — when the month averaged 27.8°C — while the coldest was 1983 at 23.4°C. Typical December days reach 30.9°C with nights near 20.3°C. The long-term December temperature trend is broadly flat.
December is a relatively wet time of year in Maryborough, averaging 124 mm of rainfall. The wettest December on record was 2010 with 531 mm, while the driest was 2019 at 33 mm.
Relative humidity in Maryborough during December averages 69%. The most humid December was 2010 at 86%, and the least humid was 2019 at 58%.
December receives about 6.8 kWh/m²/day of solar energy in Maryborough. The sunniest December was 2013 at 7.9 kWh/m²/day, and the cloudiest was 2010 at 5.
Average wind speed in Maryborough during December is 0.9 m/s. The windiest Decembers were 2006, 2018 and 2022, among others at 1 m/s, while the calmest were 1985, 2005 and 2017, among others at 0.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.4°C | 25.3°C | 25.9°C | 25.5°C | 25.9°C | +0.5°C |
| Avg High | 30.7°C | 30.7°C | 31.4°C | 30.6°C | 31.0°C | +0.3°C |
| Avg Low | 20.1°C | 20.0°C | 20.5°C | 20.3°C | 20.8°C | +0.7°C |
| Avg Rain | 125 mm | 110 mm | 111 mm | 146 mm | 130 mm | +5 mm |
December temperatures in Maryborough have stayed relatively stable across the record.
December has ranged from a record low of 13.4°C (1986) to a record high of 40.7°C (2008).
Rainfall in December is a relatively wet time of year, averaging 124 mm, with a wettest year of 531 mm.
A good time to visit Maryborough
December is a good time to visit Maryborough, with days averaging 30.9°C and nights around 20.3°C (mean 25.6°C, warmer than Maryborough's yearly average) and higher rainfall. April and October are marginally more temperate, but December still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 31.7°C | 26.1°C | 20.5°C | 36.3°C | 16.7°C | 100 mm | 66% | 0.8 m/s | — |
| 2024 | 30.2°C | 25.7°C | 21.2°C | 36.7°C | 17.6°C | 238 mm | 78% | 0.8 m/s | 6.4 |
| 2023 | 33.0°C | 27.7°C | 22.4°C | 36.5°C | 19.2°C | 156 mm | 70% | 0.9 m/s | 6.9 |
| 2022 | 30.2°C | 24.7°C | 19.2°C | 38.5°C | 15.2°C | 72 mm | 66% | 1 m/s | 6.6 |
| 2021 | 29.0°C | 24.6°C | 20.2°C | 32.9°C | 18.5°C | 112 mm | 77% | 0.8 m/s | 6.9 |
| 2020 | 31.8°C | 26.6°C | 21.5°C | 37.2°C | 18.6°C | 100 mm | 68% | 0.9 m/s | 6.5 |
| 2019 🔥 | 34.1°C | 27.8°C | 21.5°C | 40.1°C | 18.7°C | 33 mm | 58% | 0.9 m/s | 7.6 |
| 2018 | 29.6°C | 25.2°C | 20.7°C | 36.5°C | 17.8°C | 167 mm | 73% | 1 m/s | 6.5 |
| 2017 | 28.8°C | 24.1°C | 19.5°C | 32.6°C | 14.3°C | 140 mm | 80% | 0.7 m/s | 7.3 |
| 2016 | 32.1°C | 26.4°C | 20.8°C | 36.1°C | 18.2°C | 70 mm | 67% | 0.9 m/s | 6.6 |
| 2015 | 30.8°C | 25.3°C | 19.9°C | 34.8°C | 17.3°C | 60 mm | 66% | 0.9 m/s | 6.9 |
| 2014 | 30.6°C | 25.7°C | 20.8°C | 35.5°C | 17.0°C | 157 mm | 72% | 0.8 m/s | 6.5 |
| 2013 | 32.0°C | 25.7°C | 19.5°C | 38.2°C | 16.1°C | 48 mm | 61% | 0.8 m/s | 7.9 |
| 2012 | 32.6°C | 26.7°C | 20.8°C | 39.2°C | 17.2°C | 47 mm | 60% | 0.9 m/s | 7.3 |
| 2011 | 28.1°C | 23.5°C | 18.9°C | 31.6°C | 16.3°C | 209 mm | 74% | 0.9 m/s | 5.6 |
| 2010 🌧️ | 27.7°C | 24.2°C | 20.8°C | 31.1°C | 13.6°C | 531 mm | 86% | 0.8 m/s | 5 |
| 2009 | 31.7°C | 26.5°C | 21.3°C | 36.0°C | 17.9°C | 144 mm | 68% | 0.8 m/s | 6.8 |
| 2008 | 33.3°C | 27.1°C | 21.0°C | 40.7°C | 17.5°C | 56 mm | 63% | 0.8 m/s | 7.3 |
| 2007 | 30.2°C | 25.4°C | 20.5°C | 34.7°C | 18.3°C | 113 mm | 70% | 0.9 m/s | 5.5 |
| 2006 | 29.3°C | 24.0°C | 18.6°C | 33.7°C | 15.5°C | 89 mm | 67% | 1 m/s | 6.6 |
| 2005 | 32.8°C | 27.2°C | 21.6°C | 36.4°C | 16.5°C | 127 mm | 70% | 0.7 m/s | 7.7 |
| 2004 | 30.6°C | 25.5°C | 20.5°C | 36.0°C | 15.6°C | 145 mm | 71% | 0.8 m/s | 6.8 |
| 2003 | 30.1°C | 25.2°C | 20.3°C | 35.1°C | 17.2°C | 156 mm | 73% | 0.8 m/s | 6.5 |
| 2002 | 31.3°C | 25.5°C | 19.8°C | 38.5°C | 16.5°C | 96 mm | 63% | 0.9 m/s | 7.3 |
| 2001 | 33.8°C | 27.6°C | 21.4°C | 39.8°C | 17.2°C | 94 mm | 65% | 0.9 m/s | 7 |
| 2000 | 31.1°C | 25.4°C | 19.7°C | 36.5°C | 16.7°C | 89 mm | 67% | 0.9 m/s | 6.8 |
| 1999 | 28.7°C | 23.5°C | 18.4°C | 34.8°C | 15.6°C | 121 mm | 68% | 1 m/s | 6.7 |
| 1998 | 30.8°C | 25.7°C | 20.6°C | 37.9°C | 16.1°C | 115 mm | 71% | 0.8 m/s | 7.1 |
| 1997 | 33.0°C | 27.6°C | 22.2°C | 38.5°C | 19.7°C | 66 mm | 67% | 0.8 m/s | 6.6 |
| 1996 | 31.2°C | 25.7°C | 20.3°C | 40.3°C | 16.2°C | 115 mm | 68% | 0.9 m/s | 6.5 |
| 1995 | 30.1°C | 24.7°C | 19.3°C | 34.7°C | 15.7°C | 138 mm | 69% | 0.9 m/s | 7.1 |
| 1994 | 30.8°C | 25.0°C | 19.3°C | 37.4°C | 16.5°C | 77 mm | 64% | 0.9 m/s | 7.2 |
| 1993 | 30.2°C | 24.6°C | 18.9°C | 34.9°C | 15.9°C | 85 mm | 67% | 0.8 m/s | 6.9 |
| 1992 | 30.2°C | 25.0°C | 19.9°C | 35.3°C | 17.3°C | 98 mm | 68% | 0.9 m/s | 6.5 |
| 1991 | 29.4°C | 24.7°C | 19.9°C | 35.5°C | 16.6°C | 198 mm | 75% | 0.8 m/s | 6.9 |
| 1990 | 32.1°C | 26.9°C | 21.7°C | 37.7°C | 17.7°C | 92 mm | 67% | 0.9 m/s | 6.8 |
| 1989 | 31.0°C | 25.2°C | 19.5°C | 36.5°C | 15.9°C | 49 mm | 64% | 0.9 m/s | 7 |
| 1988 | 29.3°C | 25.1°C | 20.8°C | 33.1°C | 18.4°C | 219 mm | 75% | 1 m/s | 6.4 |
| 1987 | 31.3°C | 25.8°C | 20.2°C | 37.1°C | 14.7°C | 73 mm | 65% | 0.8 m/s | 7.3 |
| 1986 | 29.5°C | 24.4°C | 19.3°C | 35.7°C | 13.4°C | 101 mm | 73% | 0.8 m/s | 7.1 |
| 1985 | 31.5°C | 26.2°C | 20.9°C | 36.4°C | 17.0°C | 201 mm | 73% | 0.7 m/s | 7 |
| 1984 | 31.6°C | 26.0°C | 20.5°C | 36.3°C | 16.6°C | 152 mm | 71% | 0.8 m/s | 6.7 |
| 1983 ❄️ | 28.7°C | 23.4°C | 18.1°C | 34.0°C | 14.6°C | 98 mm | 70% | 0.9 m/s | — |
| 1982 | 31.1°C | 25.6°C | 20.0°C | 34.7°C | 17.2°C | 114 mm | 68% | 0.8 m/s | — |
| 1981 | 32.0°C | 26.7°C | 21.5°C | 36.9°C | 18.1°C | 117 mm | 73% | 0.7 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 30.9°C with lows near 20.3°C (mean 25.6°C), based on 45 years of NASA POWER data.
December averages 124 mm of rainfall in Maryborough, a relatively wet time of year. The wettest on record was 531 mm in 2010.
The hottest December reached 40.7°C in 2008. The coldest dipped to 13.4°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 20.2°C to 20.7°C while daytime highs eased from 31°C to 30.8°C, narrowing the gap between day and night.
December is one of the warmer months of the year in Maryborough and a relatively wet time of year, so plan for around 30.9°C daytime highs and 20.3°C at night.
Not quite — December is the 10th coolest month in Maryborough, averaging 25.6°C.
For December in Maryborough, pack light, breathable clothing and sun protection, with typical highs of 30.9°C and lows of 20.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 69% — moderately humid.
Average wind speed in December is 0.9 m/s. The windiest December on record averaged 1 m/s (1988).
The wettest December on record was 2010 with 531 mm. On average, December sees 124 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 Maryborough 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.
