December is one of the warmer months of the year in Birdsville, with average highs near 38.8°C and lows around 23.6°C (mean 31.2°C). It is about average for rainfall, averaging 16 mm of rainfall and 25% relative humidity across the period.
December is one of the warmer months of the year in Birdsville. Across 45 years of records, the warmest December in Birdsville was 2019 — when the month averaged 34.2°C — while the coldest was 1999 at 27.9°C. Typical December days reach 38.8°C with nights near 23.6°C. The long-term trend is warming, about 0.4°C per decade.
December is about average for rainfall in Birdsville, averaging 16 mm of rainfall. The wettest December on record was 1999 with 82 mm, while the driest was 2017 at 0 mm.
Relative humidity in Birdsville during December averages 25%. The most humid December was 1999 at 44%, and the least humid was 2019 at 16%.
December receives about 8.1 kWh/m²/day of solar energy in Birdsville. The sunniest December was 1985 at 8.9 kWh/m²/day, and the cloudiest were 2016 and 2020 at 7.2.
Average wind speed in Birdsville during December is 3.8 m/s. The windiest Decembers were 2002 and 2020 at 4.3 m/s, while the calmest was 2014 at 3.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 30.8°C | 30.6°C | 31.1°C | 31.8°C | 32.0°C | +1.2°C |
| Avg High | 38.8°C | 38.1°C | 38.6°C | 39.2°C | 39.3°C | +0.5°C |
| Avg Low | 22.9°C | 23.1°C | 23.6°C | 24.3°C | 24.6°C | +1.7°C |
| Avg Rain | 22 mm | 20 mm | 12 mm | 12 mm | 13 mm | -9 mm |
December temperatures in Birdsville have risen by about 0.8°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 12.2°C (1995) to a record high of 48.2°C (1981).
Rainfall in December is about average for rainfall, averaging 16 mm, with a wettest year of 82 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.5°C per decade, narrowing the gap between day and night.
A quieter season to visit Birdsville
If your dates are flexible, the more temperate months of September and April tend to be the most comfortable for visiting Birdsville. That said, December — with days averaging 38.8°C and nights around 23.6°C (mean 31.2°C) and low rainfall (16 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 | 39.2°C | 31.7°C | 24.1°C | 45.1°C | 16.3°C | 22 mm | 25% | 3.9 m/s | — |
| 2024 | 41.2°C | 34.0°C | 26.9°C | 46.1°C | 20.0°C | 6 mm | 23% | 3.7 m/s | 8 |
| 2023 | 40.0°C | 32.2°C | 24.3°C | 45.9°C | 17.8°C | 5 mm | 21% | 3.8 m/s | 8.6 |
| 2022 | 37.3°C | 30.2°C | 23.2°C | 45.4°C | 17.0°C | 36 mm | 31% | 3.6 m/s | 7.8 |
| 2021 | 39.9°C | 32.1°C | 24.2°C | 45.6°C | 15.1°C | 2 mm | 21% | 3.8 m/s | 8.4 |
| 2020 | 38.3°C | 31.6°C | 24.8°C | 46.8°C | 17.3°C | 6 mm | 26% | 4.3 m/s | 7.2 |
| 2019 🔥 | 42.4°C | 34.2°C | 26.0°C | 48.0°C | 17.9°C | 1 mm | 16% | 3.6 m/s | 8.8 |
| 2018 | 40.4°C | 32.5°C | 24.6°C | 47.5°C | 17.1°C | 3 mm | 20% | 3.7 m/s | 8.8 |
| 2017 | 40.3°C | 32.5°C | 24.7°C | 46.5°C | 14.5°C | 0 mm | 19% | 3.9 m/s | 8.2 |
| 2016 | 38.8°C | 32.3°C | 25.9°C | 45.5°C | 17.1°C | 13 mm | 34% | 3.7 m/s | 7.2 |
| 2015 | 40.0°C | 33.0°C | 26.1°C | 46.1°C | 18.4°C | 2 mm | 25% | 3.9 m/s | 7.3 |
| 2014 | 38.2°C | 31.3°C | 24.4°C | 44.0°C | 19.9°C | 27 mm | 32% | 3.1 m/s | 7.4 |
| 2013 | 38.9°C | 31.1°C | 23.3°C | 44.7°C | 14.4°C | 15 mm | 23% | 3.9 m/s | 8.1 |
| 2012 | 40.2°C | 32.9°C | 25.7°C | 43.9°C | 18.3°C | 1 mm | 21% | 3.9 m/s | 8 |
| 2011 | 36.3°C | 28.8°C | 21.3°C | 42.9°C | 15.1°C | 32 mm | 34% | 3.7 m/s | 7.9 |
| 2010 | 36.4°C | 28.9°C | 21.4°C | 42.7°C | 15.1°C | 27 mm | 35% | 3.6 m/s | 8.1 |
| 2009 | 37.0°C | 29.1°C | 21.1°C | 43.9°C | 14.0°C | 24 mm | 34% | 3.8 m/s | 7.7 |
| 2008 | 39.2°C | 31.5°C | 23.7°C | 45.7°C | 15.8°C | 7 mm | 24% | 3.5 m/s | 8.2 |
| 2007 | 38.7°C | 31.3°C | 23.8°C | 43.5°C | 15.8°C | 16 mm | 28% | 4.1 m/s | 8.4 |
| 2006 | 37.6°C | 30.4°C | 23.3°C | 44.7°C | 13.7°C | 19 mm | 27% | 3.8 m/s | 7.9 |
| 2005 | 40.5°C | 32.8°C | 25.1°C | 45.9°C | 17.1°C | 3 mm | 19% | 3.6 m/s | 8 |
| 2004 | 38.7°C | 30.8°C | 23.0°C | 43.5°C | 16.9°C | 4 mm | 19% | 3.8 m/s | 8.5 |
| 2003 | 39.5°C | 32.3°C | 25.1°C | 44.3°C | 15.8°C | 2 mm | 29% | 3.6 m/s | 7.7 |
| 2002 | 39.3°C | 31.1°C | 22.9°C | 44.9°C | 14.1°C | 8 mm | 18% | 4.3 m/s | 8.5 |
| 2001 | 38.6°C | 31.0°C | 23.4°C | 45.2°C | 18.7°C | 10 mm | 24% | 3.8 m/s | 7.7 |
| 2000 | 37.3°C | 30.9°C | 24.4°C | 41.7°C | 18.2°C | 29 mm | 35% | 3.9 m/s | 7.3 |
| 1999 ❄️ 🌧️ | 35.0°C | 27.9°C | 20.8°C | 42.3°C | 14.3°C | 82 mm | 44% | 3.7 m/s | 8 |
| 1998 | 38.3°C | 30.9°C | 23.5°C | 44.1°C | 18.1°C | 4 mm | 23% | 4 m/s | 7.9 |
| 1997 | 40.9°C | 33.6°C | 26.3°C | 43.8°C | 21.1°C | 16 mm | 23% | 3.6 m/s | 8.3 |
| 1996 | 40.1°C | 32.4°C | 24.7°C | 44.9°C | 16.3°C | 9 mm | 24% | 4 m/s | 7.8 |
| 1995 | 37.4°C | 29.5°C | 21.5°C | 45.3°C | 12.2°C | 4 mm | 22% | 3.6 m/s | 7.9 |
| 1994 | 39.7°C | 32.0°C | 24.3°C | 45.7°C | 16.8°C | 2 mm | 20% | 4 m/s | 8.7 |
| 1993 | 35.7°C | 28.8°C | 21.8°C | 43.9°C | 13.8°C | 51 mm | 37% | 4 m/s | 7.9 |
| 1992 | 36.3°C | 29.1°C | 21.9°C | 42.5°C | 17.0°C | 20 mm | 30% | 3.7 m/s | 8.3 |
| 1991 | 37.1°C | 29.3°C | 21.5°C | 45.9°C | 14.0°C | 13 mm | 22% | 3.4 m/s | 8.7 |
| 1990 | 40.7°C | 32.7°C | 24.7°C | 48.2°C | 16.3°C | 1 mm | 18% | 4.1 m/s | 8.6 |
| 1989 | 37.8°C | 29.3°C | 20.8°C | 44.9°C | 14.5°C | 9 mm | 32% | 3.3 m/s | 8.6 |
| 1988 | 39.3°C | 32.2°C | 25.0°C | 45.6°C | 17.2°C | 22 mm | 27% | 4.1 m/s | 8.6 |
| 1987 | 38.0°C | 30.7°C | 23.5°C | 43.9°C | 14.8°C | 78 mm | 34% | 3.5 m/s | 8 |
| 1986 | 37.8°C | 29.5°C | 21.3°C | 47.0°C | 13.1°C | 26 mm | 26% | 3.8 m/s | 8.5 |
| 1985 | 38.3°C | 29.9°C | 21.5°C | 44.7°C | 17.2°C | 10 mm | 21% | 3.8 m/s | 8.9 |
| 1984 | 39.3°C | 31.4°C | 23.5°C | 44.7°C | 16.9°C | 2 mm | 20% | 4.1 m/s | 8.3 |
| 1983 | 39.0°C | 31.1°C | 23.3°C | 43.9°C | 14.2°C | 27 mm | 25% | 3.7 m/s | — |
| 1982 | 40.0°C | 32.2°C | 24.4°C | 44.9°C | 15.9°C | 5 mm | 18% | 3.6 m/s | — |
| 1981 | 40.0°C | 31.3°C | 22.7°C | 48.2°C | 13.8°C | 18 mm | 19% | 3.6 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 38.8°C with lows near 23.6°C (mean 31.2°C), based on 45 years of NASA POWER data.
December averages 16 mm of rainfall in Birdsville, about average for rainfall. The wettest on record was 82 mm in 1999.
The hottest December reached 48.2°C in 1981. The coldest dipped to 12.2°C in 1995.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.8°C. Daytime highs moved from 39.3°C to 39.5°C and overnight lows from 23.1°C to 24.5°C over the same span.
December is one of the warmer months of the year in Birdsville and about average for rainfall, so plan for around 38.8°C daytime highs and 23.6°C at night.
Not quite — December is the 10th coolest month in Birdsville, averaging 31.2°C.
For December in Birdsville, pack light, breathable clothing and sun protection, with typical highs of 38.8°C and lows of 23.6°C.
Relative humidity in December averages 25% — relatively dry.
Average wind speed in December is 3.8 m/s. The windiest December on record averaged 4.3 m/s (2002).
The wettest December on record was 1999 with 82 mm. On average, December sees 16 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 Birdsville 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.
