December is one of the warmer months of the year in Gympie, with average highs near 30.7°C and lows around 19.2°C (mean 25°C). It is a relatively wet time of year, averaging 129 mm of rainfall and 69% relative humidity across the period.
December is one of the warmer months of the year in Gympie. Across 45 years of records, the warmest December in Gympie was 2019 — when the month averaged 27.4°C — while the coldest was 1983 at 22.2°C. Typical December days reach 30.7°C with nights near 19.2°C. The long-term trend is warming, about 0.2°C per decade.
December is a relatively wet time of year in Gympie, averaging 129 mm of rainfall. The wettest December on record was 2010 with 491 mm, while the driest was 2019 at 36 mm.
Relative humidity in Gympie during December averages 69%. The most humid December was 2010 at 87%, and the least humid was 2019 at 56%.
December receives about 6.7 kWh/m²/day of solar energy in Gympie. The sunniest December was 2005 at 7.8 kWh/m²/day, and the cloudiest was 2010 at 4.9.
Average wind speed in Gympie during December is 0.3 m/s. The windiest Decembers were 2019, 2020 and 2022, among others at 0.4 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 24.6°C | 24.6°C | 25.3°C | 25.0°C | 25.3°C | +0.7°C |
| Avg High | 30.3°C | 30.4°C | 31.3°C | 30.6°C | 30.9°C | +0.6°C |
| Avg Low | 18.9°C | 18.9°C | 19.4°C | 19.3°C | 19.8°C | +0.9°C |
| Avg Rain | 135 mm | 123 mm | 118 mm | 139 mm | 132 mm | -3 mm |
December temperatures in Gympie have risen by about 0.4°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 11.5°C (2010) to a record high of 40.8°C (2001).
Rainfall in December is a relatively wet time of year, averaging 129 mm, with a wettest year of 491 mm.
A good time to visit Gympie
December is a good time to visit Gympie, with days averaging 30.7°C and nights around 19.2°C (mean 25°C, warmer than Gympie's yearly average) and higher rainfall. October and April 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 | 31.8°C | 25.6°C | 19.4°C | 36.4°C | 15.6°C | 94 mm | 65% | 0.3 m/s | — |
| 2024 | 30.1°C | 25.2°C | 20.3°C | 37.3°C | 16.0°C | 234 mm | 77% | 0.3 m/s | 6.4 |
| 2023 | 33.2°C | 27.3°C | 21.4°C | 36.7°C | 18.2°C | 160 mm | 69% | 0.3 m/s | 7.1 |
| 2022 | 29.9°C | 24.1°C | 18.2°C | 38.0°C | 14.7°C | 64 mm | 65% | 0.4 m/s | 6.5 |
| 2021 | 28.7°C | 24.0°C | 19.3°C | 33.2°C | 16.8°C | 117 mm | 77% | 0.3 m/s | 6.8 |
| 2020 | 31.4°C | 25.9°C | 20.3°C | 38.0°C | 17.5°C | 122 mm | 68% | 0.4 m/s | 6.5 |
| 2019 🔥 | 34.5°C | 27.4°C | 20.3°C | 40.8°C | 17.5°C | 36 mm | 56% | 0.4 m/s | 7.7 |
| 2018 | 29.9°C | 24.9°C | 19.8°C | 37.3°C | 16.4°C | 140 mm | 71% | 0.4 m/s | 6.6 |
| 2017 | 28.9°C | 23.8°C | 18.7°C | 33.0°C | 13.6°C | 144 mm | 79% | 0.3 m/s | 7.3 |
| 2016 | 32.5°C | 26.2°C | 19.9°C | 37.7°C | 17.3°C | 69 mm | 65% | 0.4 m/s | 6.8 |
| 2015 | 30.3°C | 24.6°C | 18.8°C | 35.5°C | 16.3°C | 59 mm | 66% | 0.3 m/s | 6.6 |
| 2014 | 30.4°C | 25.1°C | 19.8°C | 35.0°C | 15.9°C | 158 mm | 73% | 0.3 m/s | 6.2 |
| 2013 | 32.3°C | 25.4°C | 18.4°C | 39.1°C | 14.9°C | 51 mm | 60% | 0.3 m/s | 7.6 |
| 2012 | 32.8°C | 26.4°C | 20.0°C | 40.2°C | 16.0°C | 40 mm | 58% | 0.4 m/s | 7 |
| 2011 | 27.4°C | 22.7°C | 17.9°C | 30.9°C | 15.3°C | 201 mm | 75% | 0.4 m/s | 5.6 |
| 2010 🌧️ | 26.9°C | 23.2°C | 19.6°C | 31.2°C | 11.5°C | 491 mm | 87% | 0.3 m/s | 4.9 |
| 2009 | 32.0°C | 26.2°C | 20.4°C | 38.0°C | 16.5°C | 145 mm | 67% | 0.3 m/s | 6.5 |
| 2008 | 33.1°C | 26.5°C | 19.8°C | 40.4°C | 16.2°C | 60 mm | 62% | 0.3 m/s | 7.2 |
| 2007 | 29.6°C | 24.5°C | 19.5°C | 34.2°C | 17.7°C | 139 mm | 72% | 0.4 m/s | 5.2 |
| 2006 | 29.2°C | 23.3°C | 17.5°C | 34.9°C | 14.5°C | 93 mm | 67% | 0.4 m/s | 6.5 |
| 2005 | 32.6°C | 26.5°C | 20.4°C | 36.8°C | 15.3°C | 128 mm | 69% | 0.3 m/s | 7.8 |
| 2004 | 29.9°C | 24.6°C | 19.3°C | 34.9°C | 14.8°C | 163 mm | 72% | 0.3 m/s | 6.6 |
| 2003 | 30.0°C | 24.6°C | 19.2°C | 36.5°C | 15.8°C | 154 mm | 72% | 0.3 m/s | 6.6 |
| 2002 | 31.5°C | 25.1°C | 18.8°C | 39.3°C | 15.4°C | 109 mm | 62% | 0.3 m/s | 7.3 |
| 2001 | 33.8°C | 27.1°C | 20.3°C | 40.8°C | 16.4°C | 92 mm | 63% | 0.3 m/s | 6.8 |
| 2000 | 31.0°C | 24.9°C | 18.8°C | 38.0°C | 16.0°C | 99 mm | 66% | 0.3 m/s | 6.8 |
| 1999 | 27.9°C | 22.5°C | 17.2°C | 35.9°C | 14.0°C | 136 mm | 70% | 0.4 m/s | 6.7 |
| 1998 | 30.5°C | 25.1°C | 19.6°C | 38.0°C | 15.0°C | 131 mm | 71% | 0.3 m/s | 6.7 |
| 1997 | 33.1°C | 27.2°C | 21.4°C | 39.0°C | 18.7°C | 75 mm | 66% | 0.3 m/s | 6.7 |
| 1996 | 30.8°C | 25.0°C | 19.2°C | 40.5°C | 14.9°C | 126 mm | 68% | 0.3 m/s | 6.4 |
| 1995 | 30.0°C | 24.1°C | 18.2°C | 34.0°C | 14.6°C | 133 mm | 68% | 0.3 m/s | 7.1 |
| 1994 | 30.4°C | 24.3°C | 18.2°C | 37.7°C | 15.7°C | 88 mm | 65% | 0.4 m/s | 6.9 |
| 1993 | 29.8°C | 23.7°C | 17.5°C | 35.2°C | 14.8°C | 106 mm | 67% | 0.4 m/s | 6.7 |
| 1992 | 30.2°C | 24.4°C | 18.7°C | 36.7°C | 15.1°C | 92 mm | 68% | 0.3 m/s | 6.4 |
| 1991 | 28.6°C | 23.7°C | 18.7°C | 34.8°C | 15.1°C | 241 mm | 76% | 0.3 m/s | 7 |
| 1990 | 32.4°C | 26.4°C | 20.4°C | 38.9°C | 16.5°C | 103 mm | 66% | 0.3 m/s | 6.8 |
| 1989 | 30.8°C | 24.7°C | 18.5°C | 35.7°C | 14.9°C | 53 mm | 64% | 0.4 m/s | 6.9 |
| 1988 | 29.0°C | 24.5°C | 19.9°C | 34.6°C | 17.3°C | 240 mm | 76% | 0.4 m/s | 5.9 |
| 1987 | 30.6°C | 24.8°C | 18.9°C | 36.2°C | 13.4°C | 99 mm | 67% | 0.3 m/s | 7.1 |
| 1986 | 29.3°C | 23.7°C | 18.1°C | 37.0°C | 12.4°C | 101 mm | 72% | 0.3 m/s | 6.8 |
| 1985 | 31.3°C | 25.4°C | 19.5°C | 36.6°C | 15.8°C | 193 mm | 71% | 0.3 m/s | 6.9 |
| 1984 | 31.6°C | 25.5°C | 19.4°C | 36.0°C | 15.3°C | 145 mm | 69% | 0.3 m/s | 6.6 |
| 1983 ❄️ | 27.6°C | 22.2°C | 16.7°C | 34.4°C | 13.3°C | 120 mm | 73% | 0.3 m/s | — |
| 1982 | 31.4°C | 25.3°C | 19.1°C | 35.5°C | 16.5°C | 114 mm | 66% | 0.3 m/s | — |
| 1981 | 31.0°C | 25.6°C | 20.3°C | 35.9°C | 16.4°C | 149 mm | 75% | 0.3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 30.7°C with lows near 19.2°C (mean 25°C), based on 45 years of NASA POWER data.
December averages 129 mm of rainfall in Gympie, a relatively wet time of year. The wettest on record was 491 mm in 2010.
The hottest December reached 40.8°C in 2001. The coldest dipped to 11.5°C in 2010.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.4°C. Daytime highs moved from 30.6°C to 30.7°C and overnight lows from 19°C to 19.7°C over the same span.
December is one of the warmer months of the year in Gympie and a relatively wet time of year, so plan for around 30.7°C daytime highs and 19.2°C at night.
Not quite — December is the 10th coolest month in Gympie, averaging 25°C.
For December in Gympie, pack light, breathable clothing and sun protection, with typical highs of 30.7°C and lows of 19.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 69% — moderately humid.
Average wind speed in December is 0.3 m/s. The windiest December on record averaged 0.4 m/s (1988).
The wettest December on record was 2010 with 491 mm. On average, December sees 129 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 Gympie 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.
