December is one of the warmer months of the year in Barcaldine, with average highs near 37.5°C and lows around 22.9°C (mean 30.2°C). It is a relatively wet time of year, averaging 54 mm of rainfall and 41% relative humidity across the period.
December is one of the warmer months of the year in Barcaldine. Across 45 years of records, the warmest Decembers in Barcaldine were 2019 and 2023 — when the month averaged 32.5°C — while the coldest was 2010 at 26°C. Typical December days reach 37.5°C with nights near 22.9°C. The long-term trend is warming, about 0.3°C per decade.
December is a relatively wet time of year in Barcaldine, averaging 54 mm of rainfall. The wettest December on record was 2010 with 213 mm, while the driest was 2019 at 0 mm.
Relative humidity in Barcaldine during December averages 41%. The most humid December was 2010 at 72%, and the least humid was 2019 at 24%.
December receives about 7.6 kWh/m²/day of solar energy in Barcaldine. The sunniest December was 2019 at 8.6 kWh/m²/day, and the cloudiest was 2010 at 6.4.
Average wind speed in Barcaldine during December is 3.6 m/s. The windiest December was 2018 at 4.3 m/s, while the calmest was 1997 at 2.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 30.2°C | 29.7°C | 29.9°C | 30.4°C | 31.2°C | +1°C |
| Avg High | 38.0°C | 37.0°C | 37.2°C | 37.6°C | 38.3°C | +0.3°C |
| Avg Low | 22.5°C | 22.4°C | 22.7°C | 23.2°C | 24.0°C | +1.5°C |
| Avg Rain | 45 mm | 57 mm | 87 mm | 45 mm | 24 mm | -20 mm |
December temperatures in Barcaldine have risen by about 0.5°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 13.1°C (1987) to a record high of 46.2°C (2023).
Rainfall in December is a relatively wet time of year, averaging 54 mm, with a wettest year of 213 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.1°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
A quieter season to visit Barcaldine
If your dates are flexible, the more temperate months of September and May tend to be the most comfortable for visiting Barcaldine. That said, December — with days averaging 37.5°C and nights around 22.9°C (mean 30.2°C) and moderate rainfall (54 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 37.1°C | 30.6°C | 24.1°C | 42.2°C | 17.5°C | 22 mm | 39% | 3.5 m/s | — |
| 2024 | 39.3°C | 32.1°C | 24.9°C | 43.4°C | 21.8°C | 35 mm | 42% | 3.5 m/s | 7.4 |
| 2023 | 40.3°C | 32.5°C | 24.7°C | 46.2°C | 18.7°C | 10 mm | 33% | 3.7 m/s | 8 |
| 2022 | 36.4°C | 29.0°C | 21.7°C | 44.3°C | 18.2°C | 41 mm | 38% | 3.8 m/s | 7.6 |
| 2021 | 38.6°C | 31.3°C | 23.9°C | 42.5°C | 17.2°C | 6 mm | 35% | 3.6 m/s | 7.8 |
| 2020 | 38.3°C | 31.6°C | 24.9°C | 44.6°C | 18.9°C | 33 mm | 38% | 3.8 m/s | 6.9 |
| 2019 🔥 | 40.9°C | 32.5°C | 24.0°C | 45.1°C | 20.0°C | 0 mm | 24% | 3.8 m/s | 8.6 |
| 2018 | 39.2°C | 31.2°C | 23.1°C | 44.3°C | 16.1°C | 15 mm | 34% | 4.3 m/s | 8.2 |
| 2017 | 39.6°C | 31.8°C | 24.0°C | 44.8°C | 16.2°C | 4 mm | 30% | 4 m/s | 8.2 |
| 2016 | 38.5°C | 31.6°C | 24.8°C | 43.9°C | 20.8°C | 16 mm | 39% | 3.5 m/s | 7.2 |
| 2015 | 37.6°C | 31.1°C | 24.6°C | 41.3°C | 21.3°C | 9 mm | 39% | 4.2 m/s | 7.4 |
| 2014 | 37.2°C | 30.1°C | 23.1°C | 42.2°C | 19.0°C | 87 mm | 49% | 3 m/s | 7.5 |
| 2013 | 39.0°C | 31.2°C | 23.4°C | 45.9°C | 17.5°C | 11 mm | 32% | 3.8 m/s | 8.2 |
| 2012 | 37.6°C | 30.6°C | 23.5°C | 43.2°C | 18.5°C | 34 mm | 38% | 3.3 m/s | 7.6 |
| 2011 | 34.1°C | 27.5°C | 21.0°C | 39.5°C | 15.8°C | 63 mm | 56% | 3.1 m/s | 6.8 |
| 2010 ❄️ 🌧️ | 31.8°C | 26.0°C | 20.3°C | 36.7°C | 14.5°C | 213 mm | 72% | 3 m/s | 6.4 |
| 2009 | 37.3°C | 30.6°C | 23.9°C | 43.4°C | 18.5°C | 151 mm | 43% | 3.5 m/s | 7.2 |
| 2008 | 38.9°C | 31.2°C | 23.6°C | 42.1°C | 16.6°C | 28 mm | 40% | 3.2 m/s | 7.9 |
| 2007 | 34.3°C | 27.8°C | 21.3°C | 39.6°C | 16.6°C | 165 mm | 59% | 3.4 m/s | 7.2 |
| 2006 | 35.7°C | 28.9°C | 22.2°C | 43.7°C | 18.2°C | 98 mm | 46% | 3.9 m/s | 7.2 |
| 2005 | 40.4°C | 32.4°C | 24.5°C | 43.6°C | 16.2°C | 16 mm | 29% | 3.6 m/s | 7.9 |
| 2004 | 37.1°C | 29.7°C | 22.3°C | 41.2°C | 15.8°C | 84 mm | 46% | 3.2 m/s | 7.4 |
| 2003 | 37.8°C | 30.5°C | 23.2°C | 43.2°C | 18.9°C | 50 mm | 44% | 3.7 m/s | 7.5 |
| 2002 | 39.1°C | 31.2°C | 23.2°C | 43.6°C | 16.7°C | 11 mm | 27% | 4 m/s | 8.3 |
| 2001 | 38.1°C | 30.3°C | 22.4°C | 42.7°C | 19.4°C | 95 mm | 45% | 2.9 m/s | 7.9 |
| 2000 | 33.1°C | 26.8°C | 20.5°C | 36.4°C | 17.3°C | 171 mm | 61% | 3.3 m/s | 6.7 |
| 1999 | 34.0°C | 26.8°C | 19.5°C | 38.1°C | 15.7°C | 48 mm | 52% | 3.8 m/s | 7.6 |
| 1998 | 37.1°C | 29.7°C | 22.3°C | 44.3°C | 17.5°C | 76 mm | 45% | 3.5 m/s | 7.3 |
| 1997 | 36.9°C | 30.9°C | 24.9°C | 44.3°C | 20.5°C | 104 mm | 53% | 2.8 m/s | 7.2 |
| 1996 | 37.4°C | 30.3°C | 23.3°C | 46.0°C | 16.8°C | 72 mm | 44% | 3.6 m/s | 7.4 |
| 1995 | 38.8°C | 30.9°C | 23.1°C | 44.8°C | 16.0°C | 40 mm | 32% | 4.1 m/s | 7.7 |
| 1994 | 38.0°C | 30.7°C | 23.4°C | 43.1°C | 19.0°C | 6 mm | 33% | 3.6 m/s | 8.1 |
| 1993 | 36.0°C | 28.3°C | 20.6°C | 40.9°C | 14.3°C | 77 mm | 44% | 3.8 m/s | 7.8 |
| 1992 | 36.1°C | 28.9°C | 21.7°C | 41.1°C | 17.4°C | 56 mm | 42% | 3.7 m/s | 7.5 |
| 1991 | 37.2°C | 29.2°C | 21.2°C | 42.6°C | 13.6°C | 63 mm | 38% | 3 m/s | 8.2 |
| 1990 | 38.3°C | 31.1°C | 23.9°C | 44.9°C | 18.5°C | 31 mm | 41% | 4.2 m/s | 7.7 |
| 1989 | 36.3°C | 29.0°C | 21.8°C | 41.5°C | 16.2°C | 38 mm | 46% | 3.1 m/s | 7.9 |
| 1988 | 37.2°C | 29.9°C | 22.6°C | 40.6°C | 17.6°C | 51 mm | 43% | 4 m/s | 7.8 |
| 1987 | 37.6°C | 30.3°C | 23.1°C | 42.4°C | 13.1°C | 18 mm | 36% | 3.7 m/s | 7.6 |
| 1986 | 38.5°C | 30.2°C | 21.9°C | 44.6°C | 14.4°C | 52 mm | 34% | 3.5 m/s | 8.1 |
| 1985 | 38.2°C | 30.0°C | 21.7°C | 44.3°C | 15.8°C | 43 mm | 39% | 3 m/s | 8.2 |
| 1984 | 38.4°C | 30.7°C | 22.9°C | 44.1°C | 17.6°C | 80 mm | 41% | 3.3 m/s | 7.8 |
| 1983 | 36.2°C | 28.7°C | 21.1°C | 40.6°C | 14.3°C | 60 mm | 41% | 3.9 m/s | — |
| 1982 | 39.4°C | 31.5°C | 23.5°C | 43.3°C | 16.5°C | 23 mm | 32% | 3.6 m/s | — |
| 1981 | 40.3°C | 31.9°C | 23.6°C | 44.8°C | 18.1°C | 38 mm | 36% | 3.5 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 37.5°C with lows near 22.9°C (mean 30.2°C), based on 45 years of NASA POWER data.
December averages 54 mm of rainfall in Barcaldine, a relatively wet time of year. The wettest on record was 213 mm in 2010.
The hottest December reached 46.2°C in 2023. The coldest dipped to 13.1°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.5°C — but days and nights have moved in opposite directions. Overnight lows rose from 22.6°C to 23.9°C while daytime highs eased from 38.5°C to 38.3°C, narrowing the gap between day and night.
December is one of the warmer months of the year in Barcaldine and a relatively wet time of year, so plan for around 37.5°C daytime highs and 22.9°C at night.
Not quite — December is the 11th coolest month in Barcaldine, averaging 30.2°C.
For December in Barcaldine, pack light, breathable clothing and sun protection, with typical highs of 37.5°C and lows of 22.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 41% — relatively dry.
Average wind speed in December is 3.6 m/s. The windiest December on record averaged 4.3 m/s (2018).
The wettest December on record was 2010 with 213 mm. On average, December sees 54 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 Barcaldine 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.
