December is one of the warmer months of the year in Maryborough, with average highs near 27.4°C and lows around 10.9°C (mean 19.2°C). It is about average for rainfall, averaging 42 mm of rainfall and 54% 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 2015 — when the month averaged 22.6°C — while the coldest was 1986 at 16.4°C. Typical December days reach 27.4°C with nights near 10.9°C. The long-term trend is warming, about 0.3°C per decade.
December is about average for rainfall in Maryborough, averaging 42 mm of rainfall. The wettest December on record was 1992 with 114 mm, while the driest was 1997 at 4 mm.
Relative humidity in Maryborough during December averages 54%. The most humid December was 1992 at 73%, and the least humid was 2015 at 39%.
December receives about 7.2 kWh/m²/day of solar energy in Maryborough. The sunniest December was 1994 at 8.1 kWh/m²/day, and the cloudiest was 1992 at 5.9.
Average wind speed in Maryborough during December is 3.5 m/s. The windiest Decembers were 1984 and 2002 at 4 m/s, while the calmest were 2010, 2018 and 2022, among others at 3.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.6°C | 18.9°C | 19.3°C | 20.1°C | 19.0°C | +0.4°C |
| Avg High | 26.6°C | 27.2°C | 27.7°C | 28.4°C | 27.1°C | +0.5°C |
| Avg Low | 10.5°C | 10.6°C | 10.8°C | 11.8°C | 10.8°C | +0.3°C |
| Avg Rain | 45 mm | 47 mm | 42 mm | 37 mm | 41 mm | -4 mm |
December temperatures in Maryborough have risen by about 0.5°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 3°C (1993) to a record high of 45°C (2019).
Rainfall in December is about average for rainfall, averaging 42 mm, with a wettest year of 114 mm.
One of the best times to visit Maryborough
December is one of the best times to visit Maryborough. Expect days averaging 27.4°C and nights around 10.9°C (mean 19.2°C) — warmer than Maryborough's yearly average — with moderate rainfall (42 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 | 27.2°C | 18.9°C | 10.5°C | 38.4°C | 5.9°C | 30 mm | 52% | 3.3 m/s | — |
| 2024 | 29.6°C | 20.8°C | 12.0°C | 41.1°C | 8.0°C | 26 mm | 51% | 3.4 m/s | 7.7 |
| 2023 | 27.0°C | 19.6°C | 12.1°C | 37.9°C | 8.4°C | 94 mm | 62% | 3.6 m/s | 6.4 |
| 2022 | 24.9°C | 17.4°C | 9.9°C | 37.3°C | 4.3°C | 37 mm | 65% | 3.1 m/s | 7.3 |
| 2021 | 28.0°C | 19.3°C | 10.6°C | 37.9°C | 6.4°C | 25 mm | 55% | 3.5 m/s | 7.9 |
| 2020 | 26.1°C | 17.8°C | 9.6°C | 35.0°C | 6.2°C | 33 mm | 54% | 3.8 m/s | 7 |
| 2019 | 30.8°C | 21.5°C | 12.3°C | 45.0°C | 6.2°C | 12 mm | 45% | 3.7 m/s | 7.9 |
| 2018 | 29.3°C | 21.4°C | 13.5°C | 39.1°C | 8.2°C | 75 mm | 57% | 3.1 m/s | 6.8 |
| 2017 | 27.7°C | 19.9°C | 12.1°C | 37.2°C | 7.0°C | 49 mm | 57% | 3.3 m/s | 7 |
| 2016 | 28.3°C | 20.0°C | 11.6°C | 36.6°C | 5.6°C | 31 mm | 53% | 3.3 m/s | 7.4 |
| 2015 🔥 | 31.8°C | 22.6°C | 13.4°C | 41.7°C | 6.2°C | 20 mm | 39% | 3.4 m/s | 7.8 |
| 2014 | 28.7°C | 20.2°C | 11.8°C | 35.2°C | 7.5°C | 18 mm | 50% | 3.3 m/s | 7.3 |
| 2013 | 28.4°C | 19.6°C | 10.7°C | 39.9°C | 3.7°C | 26 mm | 52% | 3.3 m/s | 7.3 |
| 2012 | 28.4°C | 20.0°C | 11.5°C | 38.8°C | 8.0°C | 16 mm | 48% | 3.6 m/s | 7.3 |
| 2011 | 27.6°C | 19.5°C | 11.4°C | 35.2°C | 5.0°C | 42 mm | 57% | 3.3 m/s | 7.5 |
| 2010 | 22.9°C | 16.6°C | 10.2°C | 36.9°C | 4.6°C | 76 mm | 73% | 3.1 m/s | 6.6 |
| 2009 | 27.5°C | 18.8°C | 10.0°C | 37.7°C | 5.9°C | 36 mm | 56% | 3.1 m/s | 7.6 |
| 2008 | 25.0°C | 17.5°C | 10.0°C | 31.2°C | 5.7°C | 68 mm | 60% | 3.4 m/s | 6.9 |
| 2007 | 28.6°C | 20.4°C | 12.2°C | 40.2°C | 6.1°C | 69 mm | 54% | 3.2 m/s | 7.2 |
| 2006 | 28.6°C | 19.5°C | 10.3°C | 41.9°C | 5.5°C | 16 mm | 42% | 3.6 m/s | 7.8 |
| 2005 | 28.2°C | 19.6°C | 11.0°C | 43.7°C | 6.4°C | 42 mm | 51% | 3.6 m/s | 7.2 |
| 2004 | 26.5°C | 18.8°C | 11.1°C | 36.6°C | 5.5°C | 62 mm | 60% | 3.2 m/s | 7.1 |
| 2003 | 30.1°C | 21.4°C | 12.7°C | 38.8°C | 7.2°C | 46 mm | 51% | 3.3 m/s | 7.3 |
| 2002 | 29.2°C | 20.3°C | 11.4°C | 39.3°C | 5.0°C | 38 mm | 47% | 4 m/s | 7.2 |
| 2001 | 24.4°C | 16.7°C | 8.9°C | 35.7°C | 5.0°C | 18 mm | 59% | 3.5 m/s | 6.1 |
| 2000 | 28.8°C | 19.7°C | 10.6°C | 37.8°C | 5.8°C | 25 mm | 51% | 3.4 m/s | 7.9 |
| 1999 | 26.7°C | 18.7°C | 10.7°C | 35.9°C | 5.2°C | 96 mm | 56% | 3.7 m/s | 7 |
| 1998 | 28.5°C | 19.7°C | 10.9°C | 40.2°C | 6.1°C | 26 mm | 54% | 3.4 m/s | 7.2 |
| 1997 | 29.0°C | 20.2°C | 11.4°C | 36.7°C | 7.3°C | 4 mm | 49% | 3.6 m/s | 7.4 |
| 1996 | 26.3°C | 17.7°C | 9.1°C | 35.7°C | 4.7°C | 22 mm | 52% | 3.4 m/s | 7.4 |
| 1995 | 25.2°C | 16.8°C | 8.4°C | 33.4°C | 3.5°C | 26 mm | 57% | 3.8 m/s | 6.9 |
| 1994 | 31.4°C | 21.8°C | 12.2°C | 38.1°C | 4.5°C | 5 mm | 40% | 3.5 m/s | 8.1 |
| 1993 | 24.8°C | 17.2°C | 9.6°C | 31.7°C | 3.0°C | 82 mm | 62% | 3.6 m/s | 6.9 |
| 1992 🌧️ | 24.0°C | 17.9°C | 11.8°C | 31.4°C | 6.2°C | 114 mm | 73% | 3.1 m/s | 5.9 |
| 1991 | 25.9°C | 18.1°C | 10.3°C | 35.6°C | 4.2°C | 78 mm | 58% | 3.3 m/s | 7.1 |
| 1990 | 29.7°C | 20.8°C | 11.9°C | 40.2°C | 5.7°C | 19 mm | 48% | 3.6 m/s | 7.1 |
| 1989 | 28.2°C | 19.6°C | 11.0°C | 36.5°C | 6.0°C | 18 mm | 52% | 3.5 m/s | 7.4 |
| 1988 | 27.8°C | 19.8°C | 11.8°C | 37.1°C | 6.0°C | 65 mm | 60% | 3.3 m/s | 7.1 |
| 1987 | 26.3°C | 18.1°C | 9.8°C | 36.8°C | 4.1°C | 72 mm | 57% | 3.6 m/s | 7.2 |
| 1986 ❄️ | 24.1°C | 16.4°C | 8.7°C | 34.2°C | 4.0°C | 69 mm | 62% | 3.6 m/s | 6.5 |
| 1985 | 24.1°C | 17.4°C | 10.7°C | 31.7°C | 6.5°C | 104 mm | 65% | 3.5 m/s | 6.1 |
| 1984 | 26.4°C | 18.0°C | 9.7°C | 35.7°C | 6.3°C | 16 mm | 52% | 4 m/s | 7.2 |
| 1983 | 27.2°C | 19.0°C | 10.8°C | 36.7°C | 5.6°C | 19 mm | 57% | 3.4 m/s | — |
| 1982 | 28.3°C | 19.9°C | 11.6°C | 35.6°C | 6.6°C | 24 mm | 46% | 3.5 m/s | — |
| 1981 | 27.4°C | 19.0°C | 10.7°C | 39.1°C | 6.4°C | 16 mm | 51% | 3.6 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 27.4°C with lows near 10.9°C (mean 19.2°C), based on 45 years of NASA POWER data.
December averages 42 mm of rainfall in Maryborough, about average for rainfall. The wettest on record was 114 mm in 1992.
The hottest December reached 45°C in 2019. The coldest dipped to 3°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 26.7°C to 27.3°C and overnight lows from 10.7°C to 11°C over the same span.
December is one of the warmer months of the year in Maryborough and about average for rainfall, so plan for around 27.4°C daytime highs and 10.9°C at night.
Not quite — December is the 10th coolest month in Maryborough, averaging 19.2°C.
For December in Maryborough, pack light layers you can adjust through the day, with typical highs of 27.4°C and lows of 10.9°C.
Relative humidity in December averages 54% — relatively dry.
Average wind speed in December is 3.5 m/s. The windiest December on record averaged 4 m/s (1984).
The wettest December on record was 1992 with 114 mm. On average, December sees 42 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.
